:root{
  --brand:#5b4cf0;
  --brand-dark:#4338ca;
  --brand-soft:#f4f2ff;
  --accent:#8b7dff;
  --accent-soft:#ece9ff;
  --ink:#262338;
  --muted:#77738a;
  --line:#e7e3f1;
  --panel:rgba(255,255,255,.9);
  --paper:#fff;
  --bg:#f7f7ff;
  --bg-grad:linear-gradient(160deg,#faf8ff 0%,#f0f8ff 48%,#fff8f1 100%);
  --good:#0f9d67;
  --good-soft:#e8fbf3;
  --warn:#a16207;
  --warn-soft:#fff7db;
  --danger:#dc2626;
  --danger-soft:#fff1f0;
  font-family:Inter,ui-rounded,"Segoe UI",system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:var(--bg)
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg-grad)}
button,input,select,textarea{font:inherit}
button{cursor:pointer;color:inherit}
a{color:inherit}
.loading{min-height:100vh;display:grid;place-items:center;font-weight:800;color:var(--brand-dark)}
.shell{min-height:100vh;display:flex;flex-direction:column}
.header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:11px clamp(12px,4vw,42px);background:rgba(255,255,255,.84);border-bottom:1px solid rgba(91,76,240,.1);backdrop-filter:blur(16px);box-shadow:0 10px 28px rgba(60,48,120,.06)}
.brand{display:flex;align-items:center;gap:10px;border:0;background:none;color:var(--ink);text-align:left;padding:0}.brand img{width:44px;height:44px;border-radius:14px;box-shadow:0 8px 16px rgba(76,70,216,.18)}.brand strong,.brand small{display:block}.brand strong{font-size:16px}.brand small{font-size:10px;letter-spacing:.16em;color:var(--brand);font-weight:900}
.header-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.chip,.icon,.primary,.secondary,.danger{border-radius:14px;padding:10px 14px;font-weight:850;transition:transform .12s ease,filter .12s ease,background .12s ease,border-color .12s ease}
.primary{border:0;background:linear-gradient(135deg,#6757ed,#4c46d8);color:#fff;box-shadow:0 8px 18px rgba(76,70,216,.22)}
.primary:hover,.secondary:hover,.chip:hover,.icon:hover{filter:brightness(1.03)}
.primary:active,.secondary:active,.chip:active,.icon:active,.danger:active{transform:scale(.98)}
.secondary,.chip,.icon{border:1px solid rgba(91,76,240,.12);background:rgba(255,255,255,.82);color:#4c46b3}
.danger{border:1px solid #ffd0cc;background:#fff;color:var(--danger)}
.main{width:min(1240px,calc(100% - 28px));margin:auto;padding:24px 0 56px;flex:1}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.panel{background:var(--panel);border:1px solid rgba(255,255,255,.92);border-radius:28px;box-shadow:0 18px 55px rgba(60,48,120,.10);backdrop-filter:blur(12px)}
.hero-main{padding:clamp(28px,5vw,54px);background:linear-gradient(135deg,#fff,#f3f0ff 55%,#eef7ff 100%)}

.hero-balanced{align-items:stretch}
.hero-main{display:flex;flex-direction:column;justify-content:space-between;min-height:100%}
.hero-mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:22px}
.hero-mini-card{padding:14px 15px;border-radius:18px;background:rgba(255,255,255,.72);border:1px solid rgba(114,101,232,.12);box-shadow:inset 0 1px 0 rgba(255,255,255,.7)}
.hero-mini-card b,.hero-mini-card span{display:block}.hero-mini-card b{font-size:20px;line-height:1.1;color:#342f66}.hero-mini-card span{margin-top:5px;font-size:12px;line-height:1.4;color:var(--muted)}
.hero-mini-card:nth-child(1){background:linear-gradient(180deg,#fff,#f6f2ff)}
.hero-mini-card:nth-child(2){background:linear-gradient(180deg,#fff,#eef8ff)}
.hero-mini-card:nth-child(3){background:linear-gradient(180deg,#fff,#eefcf6)}
.hero-mini-card:nth-child(4){background:linear-gradient(180deg,#fff,#fff6ed)}
.hero h1{font-size:clamp(38px,6vw,68px);line-height:.96;letter-spacing:-.04em;margin:12px 0 14px}.hero h1 span{color:var(--brand)}
.hero p,.card p{color:var(--muted);line-height:1.6}.eyebrow{font-size:10px;letter-spacing:.18em;font-weight:900;color:var(--brand)}
.hero-side{padding:20px;display:grid;gap:14px}.hero-side-bentos{align-content:stretch}.hero-side-bentos .feature{min-height:0}
.feature{position:relative;overflow:hidden;border:1px solid rgba(114,101,232,.14);border-radius:24px;padding:18px 18px 16px;background:linear-gradient(180deg,rgba(255,255,255,.97),rgba(248,247,255,.92));box-shadow:0 10px 24px rgba(55,39,130,.06)}.feature::before{content:"";position:absolute;right:-22px;top:-22px;width:104px;height:104px;border-radius:50%;background:radial-gradient(circle at center,rgba(122,103,255,.15),rgba(122,103,255,0));pointer-events:none}.feature strong,.feature small,.feature span{display:block}.feature-kicker{font-size:10px;letter-spacing:.18em;font-weight:900;color:#6b5ff4;margin-bottom:8px}.feature-value{font-size:24px;line-height:1.06;letter-spacing:-.03em;color:#27233e}.feature-copy{color:var(--muted);margin-top:8px;line-height:1.55;font-size:13px;max-width:34ch}.feature-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;margin-bottom:12px;font-size:24px;box-shadow:0 10px 18px rgba(76,70,216,.16)}.feature-library .feature-icon{background:linear-gradient(145deg,#6558ee,#8f82ff);color:#fff}.feature-review .feature-icon{background:linear-gradient(145deg,#14b875,#5edaa0);color:#fff}.feature-records .feature-icon{background:linear-gradient(145deg,#2d8cf0,#67b9ff);color:#fff}.feature-library{background:linear-gradient(180deg,#ffffff 0%,#f6f3ff 100%)}.feature-review{background:linear-gradient(180deg,#ffffff 0%,#eefcf6 100%)}.feature-records{background:linear-gradient(180deg,#ffffff 0%,#eef6ff 100%)}
.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}
.nav{display:flex;gap:8px;overflow:auto;padding-bottom:4px;margin:0 0 22px}.nav button{white-space:nowrap;border:1px solid rgba(91,76,240,.12);background:rgba(255,255,255,.85);border-radius:999px;padding:10px 15px;font-weight:800;color:var(--muted)}.nav .active{background:linear-gradient(135deg,#6757ed,#4c46d8);color:#fff;border-color:#6757ed}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin:8px 0 16px}.section-head h2{font-size:30px;margin:4px 0}.section-head p{margin:0;color:var(--muted)}
.grid{display:grid;gap:15px}.cols4,.cols3,.cols2{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.metric,.card{padding:19px}.metric small,.metric strong,.metric em{display:block}.metric small{color:var(--muted);font-weight:800}.metric strong{font-size:34px;margin:5px 0}.metric em{font-style:normal;color:var(--brand);font-weight:750}
.card{background:linear-gradient(180deg,#ffffff 0%,#fcfbff 100%);border:1px solid rgba(114,101,232,.12)}.card h3{margin:6px 0 8px;display:flex;align-items:center;gap:8px;line-height:1.18}.card>small{display:block;color:var(--muted);line-height:1.45}.card .actions{align-items:center}.card .actions>*{flex:0 0 auto}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin:13px 0}.tag{border-radius:999px;background:#f0eefb;padding:6px 9px;font-size:12px;font-weight:800;color:#5145c6}
.code{font-size:27px;letter-spacing:.16em;font-weight:950;color:var(--brand)}
.empty{text-align:center;padding:42px;color:var(--muted)}
.filters{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:17px}.filters input,.filters select,.field input,.field select,.field textarea{border:1px solid #ddd8eb;border-radius:14px;padding:11px 12px;background:#fff;width:100%;color:var(--ink)}.filters>*{width:auto;min-width:180px}.filters input{flex:1;min-width:240px}
.modal-bg{position:fixed;inset:0;z-index:50;background:rgba(23,18,49,.62);display:grid;place-items:center;padding:16px;overflow:auto}.modal{width:min(720px,100%);max-height:calc(100vh - 32px);overflow:auto;background:rgba(255,255,255,.96);border:1px solid rgba(255,255,255,.95);border-radius:24px;padding:22px;box-shadow:0 22px 70px rgba(30,22,68,.22)}.modal.wide{width:min(1040px,100%)}
.modal-head{display:flex;justify-content:space-between;gap:14px;align-items:start}.modal-head h2{margin:5px 0 15px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:grid;gap:5px}.field.full{grid-column:1/-1}.field span{font-size:13px;font-weight:800;color:#615d71}.field textarea{min-height:86px}
.check{display:flex;align-items:center;gap:8px;padding:8px 0}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px;flex-wrap:wrap}
.role-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}.role{border:2px solid #ebe8f4;border-radius:24px;background:#fff;padding:22px;text-align:left;box-shadow:0 10px 28px rgba(60,48,120,.06)}.role:hover{border-color:var(--brand)}.role b{font-size:34px;display:block}.role strong{font-size:20px;display:block;margin:8px 0}.role small{color:var(--muted);line-height:1.45}
.pairs{display:grid;gap:8px}.pair{display:grid;grid-template-columns:1fr 1fr 1fr 40px;gap:7px}
.notice,.error{border-radius:14px;padding:11px 13px;margin:12px 0}.notice{background:#f4f2ff;border:1px solid #ddd8f7;color:#4f46a5}.error{background:var(--danger-soft);border:1px solid #ffd0cc;color:var(--danger)}
.game{width:min(1180px,calc(100% - 20px));margin:auto;padding:18px 0 40px}.game-top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;padding:13px 14px;background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.92);border-radius:20px;box-shadow:0 12px 36px rgba(60,48,120,.09);margin-bottom:12px}.stats{display:flex;gap:7px;flex-wrap:wrap}.stat{background:#f4f2ff;border-radius:12px;padding:7px 11px;text-align:center;min-width:76px}.stat small,.stat b{display:block}.stat small{font-size:10px;letter-spacing:.08em;color:#6963a3;font-weight:900}.stat b{font-size:20px;color:#352f75}
.board{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));gap:9px;align-items:stretch}.memory{min-height:88px;border:0;background:transparent;padding:0;perspective:800px}.inner{display:grid;min-height:88px;height:100%;transform-style:preserve-3d;transition:.35s}.memory.open .inner,.memory.match .inner,.memory.hint .inner{transform:rotateY(180deg)}.face{grid-area:1/1;display:grid;place-items:center;border:2px solid #d7d2f3;border-radius:18px;padding:7px;backface-visibility:hidden;text-align:center;font-weight:900;overflow:hidden}.back{background:linear-gradient(145deg,#7b5df0,#4d4bdc 60%,#2e87d5);color:#fff;font-size:27px;box-shadow:0 10px 20px rgba(76,70,216,.22)}.front{transform:rotateY(180deg);background:#fff;color:var(--ink)}.front.picture-front{padding:8px}.memory.match .front{background:#eefcf5;border-color:#72d7a0}.memory.hint .front{box-shadow:inset 0 0 0 2px rgba(245,158,11,.45)}
.edu-face{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;width:100%;height:100%}.edu-face.compact{gap:4px}.edu-illustration{width:min(100%,72px);height:min(100%,72px);display:grid;place-items:center;border-radius:18px;background:linear-gradient(145deg,#fff7d6,#eef4ff);box-shadow:inset 0 0 0 1px rgba(91,76,240,.08);line-height:1;padding:6px;overflow:hidden}.edu-illustration.icon{font-size:clamp(28px,4vw,46px)}.edu-visual-glyph{display:grid;place-items:center;width:100%;height:100%}.edu-visual-img{width:100%;height:100%;object-fit:contain;display:block}.edu-face.compact .edu-illustration{width:min(100%,58px);height:min(100%,58px)}.edu-face.compact .edu-illustration.icon{font-size:clamp(24px,3vw,38px)}
.edu-face,.edu-text,.quick-face,.quick-face>span:last-child{min-width:0;max-width:100%}.edu-text{display:block;width:100%;font-size:14px;line-height:1.24;font-weight:900;white-space:normal;overflow-wrap:break-word;word-break:normal;hyphens:auto;text-wrap:balance}.edu-face.compact .edu-text{font-size:12px}.text-only{font-size:15px;line-height:1.28}.edu-face.text-long .edu-text{font-size:clamp(13px,1.55vw,18px);line-height:1.18}.edu-face.text-very-long .edu-text{font-size:clamp(12px,1.35vw,16px);line-height:1.16}.edu-face.text-extra-long .edu-text{font-size:clamp(11px,1.15vw,14px);line-height:1.14}.quick-face{display:flex;align-items:center;justify-content:center;gap:12px;width:100%}.quick-face .edu-illustration{width:64px;height:64px;flex:0 0 64px;border-radius:18px}.quick-face .edu-visual-glyph{font-size:40px}.quick-face>span:last-child{font-weight:900;line-height:1.25;white-space:normal;overflow-wrap:break-word;text-wrap:balance}.quick-face.text-long>span:last-child{font-size:clamp(15px,2vw,20px)}.quick-face.text-very-long>span:last-child{font-size:clamp(13px,1.7vw,18px)}.quick-face.text-extra-long>span:last-child{font-size:clamp(12px,1.5vw,16px)}.quick-face.text-only{display:block}
.face,.front{min-width:0;max-width:100%}.board.content-long .memory,.board.content-long .inner{min-height:104px}.board.content-extra-long .memory,.board.content-extra-long .inner{min-height:122px}.board.content-long .face,.board.content-extra-long .face{padding:10px}.board.content-long .edu-face,.board.content-extra-long .edu-face{overflow:hidden}
.result{text-align:center;padding:30px}.score{font-size:70px;font-weight:950;color:var(--brand)}.stars{font-size:32px;color:#f59e0b}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.table td:nth-child(2){max-width:420px}
.review-summary{margin:18px auto 8px;padding:14px 16px;border:1px solid #f6df9f;background:#fff9e8;border-radius:16px;max-width:800px}.review-summary h3{margin:0 0 6px;color:#8a5700}.review-summary p{margin:0;color:#5e5a4d;line-height:1.6}
.toast{position:fixed;right:16px;bottom:16px;z-index:80;background:#352f75;color:#fff;padding:12px 15px;border-radius:12px;max-width:360px;box-shadow:0 14px 32px rgba(30,22,68,.28)}
footer{text-align:center;color:var(--muted);padding:18px;border-top:1px solid rgba(91,76,240,.08);background:rgba(255,255,255,.78);font-size:13px}
html[data-contrast=high]{--ink:#000;--muted:#37324c;--line:#8b86a5;--brand:#4338ca;--bg:#fff}
html[data-text=large]{font-size:18px}html[data-motion=reduced] .inner{transition:none}
.role-grid .role{min-height:165px}
@media(max-width:900px){.hero{grid-template-columns:1fr}.cols4,.cols3,.cols2{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}}
@media(max-width:650px){.main{width:calc(100% - 18px)}.hero-main{padding:25px 18px}.hero h1{font-size:40px}.cols4,.cols3,.cols2,.form-grid,.role-grid{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column}.pair{grid-template-columns:1fr 1fr}.pair input:nth-child(3){grid-column:1/-1}.board{grid-template-columns:repeat(var(--mobile-cols),minmax(0,1fr));gap:6px}.memory,.inner{min-height:78px}.chip span{display:none}.filters>*{width:100%;min-width:0}.header-actions .secondary{display:none}.review-summary{padding:12px}.card .actions>*{flex:1}.table{font-size:13px}.edu-text{font-size:12px}.edu-illustration{width:min(100%,56px);height:min(100%,56px)}.quick-face{gap:8px}.quick-face .edu-illustration{width:52px;height:52px;flex-basis:52px}}

/* v1.2.0 education assessment modes */
.field-note{display:block;margin-top:6px;color:var(--muted);font-size:12px;line-height:1.45}
.mode-guide{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0}.mode-guide article{border:1px solid var(--line);border-radius:18px;padding:14px;background:#fff}.mode-guide b,.mode-guide strong,.mode-guide small{display:block}.mode-guide b{font-size:27px}.mode-guide strong{margin:7px 0 4px;color:#3f378f}.mode-guide small{color:var(--muted);line-height:1.45}
.game-tools{align-items:center;margin:0 0 12px}.game-tools .notice{margin:0;flex:1}
.board.knowledge-mode .inner{transform:rotateY(180deg)}
.board.knowledge-mode .memory{cursor:pointer}
.board.knowledge-mode .memory.selected .front{box-shadow:inset 0 0 0 3px #7c6fec,0 8px 20px rgba(76,70,216,.15);border-color:#7c6fec}
.board.knowledge-mode .memory:not(.match):hover .front{border-color:#9b91ef;background:#faf9ff}
.board.knowledge-mode .memory.match .front{box-shadow:inset 0 0 0 2px #39b97d}
.quick-game{max-width:980px}.quick-panel{padding:clamp(22px,5vw,44px);text-align:center}.quick-panel>p{color:var(--muted);margin:8px 0 20px}.quick-prompt{width:min(560px,100%);min-height:150px;margin:18px auto 8px;border:2px solid #d9d3f6;border-radius:24px;background:linear-gradient(145deg,#fff,#f5f2ff);display:flex;align-items:center;justify-content:center;gap:14px;padding:22px;font-size:clamp(22px,4vw,38px);font-weight:950;color:#352f75;box-shadow:0 14px 32px rgba(60,48,120,.1)}
.quick-visual{display:inline-grid;place-items:center;min-width:68px;min-height:68px;border-radius:20px;background:linear-gradient(145deg,#fff7d6,#edf4ff);font-size:clamp(34px,5vw,58px);line-height:1;padding:8px;box-shadow:inset 0 0 0 1px rgba(91,76,240,.08)}
.quick-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.quick-choice{min-height:100px;border:2px solid #e2def6;border-radius:20px;background:#fff;padding:14px;display:flex;align-items:center;justify-content:center;gap:10px;font-weight:900;font-size:clamp(15px,2.2vw,21px);color:#332e6c;box-shadow:0 9px 24px rgba(60,48,120,.07);transition:transform .12s ease,border-color .12s ease,background .12s ease}.quick-choice:hover:not(:disabled){transform:translateY(-2px);border-color:#8f83ef;background:#faf9ff}.quick-choice.wrong{border-color:#f2a8a0;background:#fff1f0;color:#a62c22;opacity:.72}.quick-choice.hinted{border-color:#f2bd3e;background:#fff8dc;box-shadow:0 0 0 3px rgba(245,158,11,.18)}.quick-feedback{min-height:28px;margin-top:16px;font-weight:850;color:#7b5c12}.quick-feedback.correct{color:#087558}
@media(max-width:700px){.mode-guide{grid-template-columns:1fr}.quick-choices{grid-template-columns:1fr}.quick-prompt{min-height:125px;padding:16px}.quick-choice{min-height:78px}.game-tools{align-items:stretch;flex-direction:column}.game-tools>*{width:100%}}

/* v2.2.0 SEO, balanced visuals, compact filters, and library expansion */
.landing-header{position:relative;top:auto;z-index:20}
.app-header{position:sticky;top:0}

.cols4{grid-template-columns:repeat(4,minmax(0,1fr))}
.cols3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cols2{grid-template-columns:repeat(2,minmax(0,1fr))}

.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));align-items:end}
.filters>*{width:100%;min-width:0}
.filter-field{display:grid;gap:7px;min-width:0}
.filter-field>span{font-size:11px;line-height:1;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:#5f58a6;padding-left:3px}
.filter-field select,.filter-field input{min-height:48px}
.filter-field:focus-within>span{color:var(--brand)}

.auth-modal{width:min(620px,100%)}
.auth-tabs{margin-bottom:14px}
.auth-methods{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0 0 16px}
.auth-methods button{border:2px solid var(--line);border-radius:18px;background:#fff;padding:14px;text-align:left;transition:border-color .16s ease,transform .16s ease,box-shadow .16s ease,background .16s ease}
.auth-methods button b,.auth-methods button span,.auth-methods button small{display:block}
.auth-methods button b{font-size:26px;margin-bottom:7px}
.auth-methods button span{font-weight:900;color:#393276}
.auth-methods button small{color:var(--muted);font-size:11px;line-height:1.4;margin-top:3px}
.auth-methods button.active{border-color:var(--brand);background:var(--brand-soft);box-shadow:0 9px 22px rgba(76,70,216,.12)}
.auth-note{margin:13px 0 0;color:var(--muted);font-size:12px;line-height:1.5}

footer{height:auto;min-height:48px;display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;padding:8px 14px;position:relative;z-index:2;color:#8a879a;font-size:10px;letter-spacing:.7px;text-transform:uppercase;text-align:center;border-top:0;background:transparent}
.footer-meta{color:#aaa6b7;font-size:8px;letter-spacing:1px}

.hero-main,.hero-side,.feature,.metric,.card,.role,.mode-guide article,.hero-mini-card{transition:transform .22s cubic-bezier(.2,.75,.25,1),box-shadow .22s ease,border-color .22s ease,background .22s ease}
@media(hover:hover) and (pointer:fine){
  .hero-main:hover,.hero-side:hover{transform:translateY(-4px);box-shadow:0 24px 64px rgba(60,48,120,.14)}
  .feature:hover{transform:translateY(-5px) scale(1.012);border-color:#cfc7fb;background:#fff;box-shadow:0 22px 40px rgba(60,48,120,.14)}
  .metric:hover,.card:hover,.role:hover,.mode-guide article:hover,.hero-mini-card:hover{transform:translateY(-6px);border-color:#d4ccfb;box-shadow:0 22px 46px rgba(60,48,120,.15)}
  .auth-methods button:hover{transform:translateY(-2px);border-color:#9a8ff0;box-shadow:0 12px 26px rgba(60,48,120,.11)}
}
html[data-motion=reduced] .hero-main,html[data-motion=reduced] .hero-side,html[data-motion=reduced] .feature,html[data-motion=reduced] .metric,html[data-motion=reduced] .card,html[data-motion=reduced] .role,html[data-motion=reduced] .mode-guide article,html[data-motion=reduced] .auth-methods button,html[data-motion=reduced] .hero-mini-card{transition:none;transform:none}

@media(max-width:1100px){
  .cols4,.cols3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .filters{grid-template-columns:repeat(2,minmax(0,1fr))}
  .filter-search{grid-column:1/-1}
}
@media(max-width:650px){
  .cols4,.cols3,.cols2{grid-template-columns:1fr}
  .filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
  .filter-search{grid-column:1/-1}
  .auth-methods{grid-template-columns:1fr}
  .hero-mini-grid{grid-template-columns:1fr}
  .feature{padding:16px 15px 14px;border-radius:20px}
  .feature-value{font-size:21px}
  .feature-copy{font-size:12px}
  footer{min-height:42px;gap:8px}.footer-meta{display:none}
}

/* v1.3.1 visible activity and pair selectors */
.selection-modal{width:min(1040px,100%)}
.choice-fieldset{min-width:0;margin:0;padding:0;border:0;display:grid;gap:10px}
.choice-fieldset.full{grid-column:1/-1}
.choice-fieldset legend{padding:0;margin:0 0 2px;font-size:13px;font-weight:900;color:#514b66}
.activity-choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.pair-choice-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}
.choice-radio{display:block;min-width:0;cursor:pointer;position:relative}
.choice-radio>input{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px}
.mode-choice-body,.pair-choice-body{height:100%;display:flex;flex-direction:column;border:2px solid #e4e0f5;background:#fff;border-radius:20px;transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease,background .15s ease}
.mode-choice-body{min-height:164px;padding:16px;text-align:left}
.mode-choice-body b{font-size:31px;line-height:1;display:block;margin-bottom:12px}
.mode-choice-body strong{font-size:16px;line-height:1.2;color:#332d6b;display:block}
.mode-choice-body small{font-size:12px;line-height:1.48;color:var(--muted);margin-top:7px;display:block}
.mode-choice-body em{display:none;margin-top:auto;padding-top:10px;color:var(--brand);font-size:10px;font-style:normal;font-weight:950;letter-spacing:.12em;text-transform:uppercase}
.pair-choice-body{min-height:82px;align-items:center;justify-content:center;text-align:center;padding:10px 6px}
.pair-choice-body strong{font-size:20px;line-height:1;color:#352f75;display:block}
.pair-choice-body small{font-size:9px;line-height:1.25;color:var(--muted);margin-top:7px;display:block}
.choice-radio>input:checked+.mode-choice-body,.choice-radio>input:checked+.pair-choice-body{border-color:var(--brand);background:linear-gradient(145deg,#f7f5ff,#eef3ff);box-shadow:0 12px 28px rgba(76,70,216,.15),inset 0 0 0 1px rgba(91,76,240,.08)}
.choice-radio>input:checked+.mode-choice-body em{display:block}
.choice-radio>input:focus-visible+.mode-choice-body,.choice-radio>input:focus-visible+.pair-choice-body{outline:3px solid rgba(91,76,240,.3);outline-offset:3px}
.support-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 12px;align-content:start}
@media(hover:hover) and (pointer:fine){
  .choice-radio:hover .mode-choice-body,.choice-radio:hover .pair-choice-body{transform:translateY(-3px);border-color:#a99ff0;box-shadow:0 12px 26px rgba(60,48,120,.11)}
}
html[data-motion=reduced] .mode-choice-body,html[data-motion=reduced] .pair-choice-body{transition:none;transform:none}
@media(max-width:850px){
  .activity-choice-grid{grid-template-columns:1fr}
  .mode-choice-body{min-height:0}
  .pair-choice-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media(max-width:520px){
  .pair-choice-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .pair-choice-grid .pair-choice:first-child{grid-column:1/-1}
  .support-options{grid-template-columns:1fr}
}

/* v1.3.2 selector label visibility repair */
.mode-choice-icon,.mode-choice-title,.mode-choice-description,.mode-choice-selected,.pair-choice-label,.pair-choice-note{
  opacity:1!important;
  visibility:visible!important;
  -webkit-text-fill-color:currentColor!important;
  text-shadow:none!important;
}
.mode-choice-title{display:block!important;margin:0;color:#28234f!important;font-size:17px!important;font-weight:950!important;line-height:1.2!important}
.mode-choice-description{display:block!important;margin-top:7px;color:#77738a!important;font-size:12px!important;font-weight:500!important;line-height:1.48!important}
.mode-choice-selected{display:none!important;margin-top:auto;padding-top:10px;color:#5b4cf0!important;font-size:10px!important;font-weight:950!important;letter-spacing:.1em;text-transform:uppercase}
.choice-radio>input:checked+.mode-choice-body .mode-choice-selected{display:block!important}
.pair-choice-label{display:block!important;color:#302a68!important;font-size:16px!important;font-weight:950!important;line-height:1.15!important;white-space:nowrap}
.pair-choice-note{display:block!important;margin-top:6px;color:#77738a!important;font-size:9px!important;font-weight:600!important;line-height:1.25!important}
.choice-radio>input:checked+.pair-choice-body .pair-choice-label{color:#4d43df!important}
.mode-choice-body,.pair-choice-body{position:relative}
.choice-radio>input:checked+.mode-choice-body::after,.choice-radio>input:checked+.pair-choice-body::after{content:"✓";position:absolute;right:10px;top:10px;width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:#5b4cf0;color:#fff;font-size:12px;font-weight:950;box-shadow:0 5px 12px rgba(76,70,216,.22)}
.pair-choice-body{min-height:88px;padding:12px 7px}
@media(max-width:520px){.pair-choice-label{font-size:14px!important}.pair-choice-note{font-size:8px!important}}

/* v1.4.0 country-separated curriculum library */
.country-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0 0 12px}
.country-tab{border:2px solid #e1ddf6;border-radius:20px;background:rgba(255,255,255,.88);padding:12px 15px;display:flex;align-items:center;gap:11px;text-align:left;color:#4c4664;box-shadow:0 8px 20px rgba(60,48,120,.05);transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease,background .15s ease}
.country-tab .country-flag{font-size:28px;line-height:1}
.country-tab strong,.country-tab small{display:block;opacity:1!important;visibility:visible!important;-webkit-text-fill-color:currentColor!important}
.country-tab strong{font-size:15px;line-height:1.2;color:#2c2752}
.country-tab small{font-size:10px;line-height:1.25;color:#77738a;margin-top:4px}
.country-tab.active{border-color:#5b4cf0;background:linear-gradient(145deg,#f7f5ff,#eef3ff);box-shadow:0 12px 28px rgba(76,70,216,.13)}
.country-tab.active strong{color:#4d43df}
@media(hover:hover) and (pointer:fine){.country-tab:hover{transform:translateY(-2px);border-color:#a99ff0;box-shadow:0 12px 26px rgba(60,48,120,.1)}}
html[data-motion=reduced] .country-tab{transition:none;transform:none}
@media(max-width:520px){.country-tabs{grid-template-columns:1fr}.country-tab{padding:10px 12px}.country-tab .country-flag{font-size:24px}}

/* v1.4.1 mastery replay with reshuffled arrangements */
.mastery-replay-note{display:flex;align-items:flex-start;gap:12px;width:min(760px,100%);margin:18px auto 4px;padding:15px 17px;border:1px solid #d7d1f5;border-radius:18px;background:linear-gradient(135deg,#f7f4ff,#eef7ff);text-align:left}
.mastery-replay-note::before{content:"🔀";display:grid;place-items:center;flex:0 0 42px;width:42px;height:42px;border-radius:14px;background:linear-gradient(145deg,#6757ed,#4c46d8);color:#fff;font-size:20px;box-shadow:0 8px 18px rgba(76,70,216,.2)}
.mastery-replay-note strong,.mastery-replay-note span{display:block}.mastery-replay-note strong{color:#3c357f;font-size:14px}.mastery-replay-note span{margin-top:3px;color:var(--muted);font-size:12px;line-height:1.5}
.result-actions{align-items:stretch}.result-actions button{min-width:150px}
@media(max-width:650px){.mastery-replay-note{padding:13px}.result-actions{flex-direction:column}.result-actions button{width:100%;min-width:0}}

/* v1.6.0 compact one-page Education landing */
.compact-main{width:min(1380px,calc(100% - 24px));padding:12px 0 34px}
.compact-hero{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(360px,.8fr);gap:18px;padding:22px 24px;background:linear-gradient(135deg,#fff 0%,#f5f2ff 58%,#edf7ff 100%);align-items:center}
.compact-hero-copy h1{font-size:clamp(34px,4.6vw,58px);line-height:.98;letter-spacing:-.045em;margin:8px 0 10px}
.compact-hero-copy p{max-width:720px;margin:0;color:var(--muted);font-size:15px;line-height:1.55}
.compact-hero-copy .actions{margin-top:15px}
.compact-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.compact-stats>div{min-height:78px;padding:13px 14px;border:1px solid rgba(91,76,240,.12);border-radius:18px;background:rgba(255,255,255,.82);box-shadow:0 8px 20px rgba(60,48,120,.06);display:flex;flex-direction:column;justify-content:center;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.compact-stats b,.compact-stats span{display:block}.compact-stats b{font-size:24px;line-height:1;color:#332d70}.compact-stats span{margin-top:6px;font-size:11px;color:var(--muted);font-weight:800}
.compact-library{margin-top:14px}
.compact-section-head{margin:0 0 8px;align-items:center}.compact-section-head h2{font-size:25px;margin:2px 0}.compact-section-head>small{color:var(--muted);font-weight:800}
.country-tabs{display:flex;gap:8px;margin:0 0 8px}
.country-tab{flex:0 1 230px;min-height:48px;border-width:1px;border-radius:15px;padding:7px 11px;gap:8px}
.country-tab .country-flag{font-size:22px}.country-tab strong{font-size:13px}.country-tab small{font-size:9px;margin-top:2px}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.filter-field{flex:1 1 155px;min-width:155px;gap:4px}
.filter-field>span{font-size:9px;white-space:nowrap;padding-left:2px;letter-spacing:.08em}
.filter-field select,.filter-field input{min-height:40px;padding:8px 10px;border-radius:11px;font-size:13px}
.filter-search{flex:2 1 250px}
.compact-lesson-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.compact-card{min-height:218px;padding:14px 14px 13px;border-radius:20px;display:flex;flex-direction:column}
.compact-card .eyebrow{font-size:8px;letter-spacing:.12em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.compact-card h3{font-size:16px;line-height:1.16;margin:6px 0}
.compact-card p{font-size:12px;line-height:1.42;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:34px}
.compact-card .tags{margin:9px 0 7px;gap:5px}.compact-card .tag{font-size:9px;padding:4px 6px}
.compact-card>small{display:none}
.compact-card .actions{margin-top:auto;padding-top:8px}.compact-card .actions .primary{width:100%;padding:9px 12px;border-radius:11px;font-size:12px}
.math-expression .edu-text{font-size:clamp(17px,2.1vw,27px);font-variant-numeric:tabular-nums;letter-spacing:.01em;white-space:normal;overflow-wrap:anywhere;word-break:normal;line-height:1.12}.math-expression.text-long .edu-text{font-size:clamp(16px,1.8vw,23px)}.math-expression.text-very-long .edu-text{font-size:clamp(14px,1.55vw,20px)}.math-expression.text-extra-long .edu-text{font-size:clamp(13px,1.35vw,18px)}
@media(hover:hover) and (pointer:fine){
  .compact-stats>div:hover{transform:translateY(-3px);border-color:#cfc7fb;box-shadow:0 14px 26px rgba(60,48,120,.11)}
}
html[data-motion=reduced] .compact-stats>div{transition:none;transform:none}
@media(max-width:1100px){
  .compact-hero{grid-template-columns:1fr minmax(320px,.75fr)}
  .compact-lesson-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:820px){
  .compact-hero{grid-template-columns:1fr;padding:20px}
  .compact-stats{grid-template-columns:repeat(4,minmax(0,1fr))}
  .compact-stats>div{min-height:68px;padding:10px}
  .compact-stats b{font-size:20px}
  .compact-lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:650px){
  .compact-main{width:calc(100% - 16px);padding-top:8px}
  .compact-hero{padding:18px 15px;border-radius:22px}
  .compact-hero-copy h1{font-size:38px}
  .compact-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .country-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .country-tab{min-width:0;width:100%}
  .filter-field{flex:1 1 calc(50% - 4px);min-width:calc(50% - 4px)}
  .filter-search{flex-basis:100%;min-width:100%}
  .compact-lesson-grid{grid-template-columns:1fr}
  .compact-card{min-height:0}
}

/* v2.2.0 role approval and first-owner merge */
.account-role-summary{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:14px 0;padding:13px 15px;border:1px solid var(--line);border-radius:16px;background:#f8f7ff}.account-role-summary strong,.account-role-summary small{display:block}.account-role-summary small{color:var(--muted);text-align:right}
.user-role-list{display:grid;gap:12px}.user-role-card{display:grid;grid-template-columns:minmax(180px,1.2fr) minmax(220px,1fr) auto;align-items:center;gap:14px;padding:16px 18px}.user-role-card>div:first-child strong,.user-role-card>div:first-child small{display:block}.user-role-card>div:first-child small{margin-top:4px;color:var(--muted);overflow-wrap:anywhere}.user-role-card .actions{justify-content:flex-end}.owner-badge{justify-self:end;padding:8px 12px;border-radius:999px;background:#efeaff;color:#4d3fd0}.status-pending,.status-legacy_unverified{background:#fff6d8;color:#8b5b00}.status-approved{background:#e8fbf1;color:#087558}.status-rejected{background:#fff0ef;color:#a62c22}
@media(max-width:900px){.user-role-card{grid-template-columns:1fr}.user-role-card .actions{justify-content:flex-start}.owner-badge{justify-self:start}}

/* v2.2.0 secure Superuser and explicit Quick Check correction */
.quick-choice.revealed-correct{border-color:#2fb979;background:#eefcf5;color:#087558;box-shadow:0 0 0 4px rgba(47,185,121,.16)}
.quick-correction{margin:16px auto 4px;max-width:620px;padding:15px 16px;border:2px solid #74d5a2;border-radius:18px;background:linear-gradient(145deg,#effcf6,#f8fffb);display:grid;grid-template-columns:1fr auto;gap:4px 14px;align-items:center;text-align:left}
.quick-correction span{font-size:11px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:#39785a}
.quick-correction strong{grid-column:1;font-size:clamp(20px,3vw,30px);line-height:1.2;color:#075f43;overflow-wrap:anywhere}
.quick-correction button{grid-column:2;grid-row:1/3;min-width:132px}
.security-upgrade-modal{max-width:620px}
.security-upgrade-modal>form{display:grid;gap:12px}
@media(max-width:650px){.quick-correction{grid-template-columns:1fr;text-align:center}.quick-correction strong,.quick-correction button{grid-column:1;grid-row:auto}.quick-correction button{width:100%}}

/* v2.2.0 grade-aware image controls and visual audit */
.image-choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.image-choice-body{min-height:150px}
.image-recommendation{display:block;padding:10px 12px;border:1px solid #ddd8f7;border-radius:13px;background:#f7f5ff;color:#4f46a5;font-weight:800}
.grade-image-summary{min-height:48px;display:flex;align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:14px;background:#f8f7ff;color:#514b77;font-size:12px;line-height:1.4;font-weight:750}
@media(max-width:850px){.image-choice-grid{grid-template-columns:1fr}.image-choice-body{min-height:0}}

/* v2.2.0 shared profile identity */
.profile-chip{display:inline-flex!important;align-items:center;gap:8px;padding:5px 11px 5px 6px!important}
.education-header-avatar,.education-profile-avatar{overflow:hidden;display:grid;place-items:center;flex:0 0 auto;background:linear-gradient(145deg,#6f60ef,#343aac);color:#fff;font-weight:950}
.education-header-avatar{width:28px;height:28px;border-radius:10px;font-size:9px}
.education-header-avatar img,.education-profile-avatar img{width:100%;height:100%;display:block;object-fit:cover}
.education-profile-avatar{width:88px;height:88px;border-radius:26px;font-size:24px;box-shadow:0 12px 28px rgba(60,48,120,.17)}
.education-account-modal{width:min(620px,calc(100vw - 24px))}
.education-account-identity{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:center;padding:16px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(145deg,#fbfaff,#f1f7ff)}
.education-account-identity>div{min-width:0}.education-account-identity strong,.education-account-identity small{display:block}.education-account-identity strong{font-size:22px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.education-account-identity small{margin-top:4px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.education-account-identity .tags{margin-top:10px}
.education-account-details{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:14px 0}.education-account-details span{padding:11px 12px;border:1px solid var(--line);border-radius:14px;background:#fff}.education-account-details small,.education-account-details strong{display:block}.education-account-details small{font-size:9px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-weight:900}.education-account-details strong{margin-top:4px;font-size:12px}
@media(max-width:600px){.education-account-details{grid-template-columns:1fr}.education-profile-avatar{width:70px;height:70px;border-radius:21px}.education-account-identity strong{font-size:18px}.profile-chip span{max-width:95px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}

/* v2.4.2 polished dashboard, lesson library, game feedback, and results */
.polished-hero{position:relative;overflow:hidden}.polished-hero::after{content:"";position:absolute;right:-80px;bottom:-120px;width:330px;height:330px;border-radius:50%;background:radial-gradient(circle,rgba(91,76,240,.13),rgba(91,76,240,0) 70%);pointer-events:none}
.library-health{display:flex;align-items:center;justify-content:flex-end;gap:7px;flex-wrap:wrap}.library-health span,.library-health strong{padding:7px 10px;border-radius:999px;font-size:10px;font-weight:900}.library-health span{background:#eefaf5;color:#087558;border:1px solid #ccefdc}.library-health strong{background:#f1efff;color:#5145c6;border:1px solid #ddd8f7}
.polished-filters{display:grid;grid-template-columns:repeat(6,minmax(135px,1fr));align-items:end}.polished-filters .filter-search{grid-column:span 2}.polished-filters .filter-sort{min-width:145px}
.filter-summary{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:34px;margin:-2px 0 10px;color:var(--muted);font-size:11px}.active-filter-chips{display:flex;gap:6px;flex-wrap:wrap}.active-filter-chip,.filter-reset{border:0;background:transparent}.active-filter-chip{display:inline-flex;align-items:center;gap:4px;padding:6px 9px;border:1px solid #ddd8f7;border-radius:999px;background:#f7f5ff;color:#4d43b8;font-size:10px;font-weight:800}.active-filter-chip span{color:#77738a}.active-filter-chip b{font-size:13px}.filter-reset{color:#5b4cf0;font-size:11px;font-weight:900;padding:6px 8px}.filter-reset:hover{text-decoration:underline}
.lesson-card{position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:264px;padding:16px;border-color:rgba(91,76,240,.12);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.lesson-card::after{content:"";position:absolute;right:-42px;top:-52px;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,rgba(91,76,240,.08),transparent 70%);pointer-events:none}.lesson-card:hover{transform:translateY(-4px);border-color:#cbc4f6;box-shadow:0 20px 38px rgba(60,48,120,.13)}
.lesson-card-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:11px;align-items:start}.lesson-icon-tile{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(145deg,#f8f4ff,#edf5ff);border:1px solid #ded8f7;font-size:24px;box-shadow:inset 0 1px 0 #fff}.lesson-card-title{min-width:0}.lesson-card-title h3{display:block;margin:4px 0 0;font-size:17px;line-height:1.18}.lesson-card-title .eyebrow{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson-country{padding:6px 8px;border-radius:999px;background:#f6f4ff;color:#554ac5;font-size:9px;font-weight:900;white-space:nowrap}
.lesson-card>p{margin:12px 0 0;font-size:12px;line-height:1.48;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:36px}.lesson-meta-row,.lesson-quality-row{display:flex;gap:6px;flex-wrap:wrap}.lesson-meta-row{margin:11px 0 7px}.lesson-meta-row span{padding:5px 7px;border-radius:9px;background:#f2f0f9;color:#5d5870;font-size:9px;font-weight:850}.lesson-quality-row{margin-bottom:8px}.lesson-quality{padding:5px 7px;border-radius:9px;font-size:9px;font-weight:900}.visual-quality{background:#eef6ff;color:#2f70aa}.audited-quality{background:#eafaf2;color:#087558}.lesson-standard{margin-top:3px}.lesson-actions{margin-top:auto;padding-top:10px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.lesson-actions>*{min-width:0;padding:9px 8px;font-size:11px;border-radius:11px}.lesson-actions .primary{grid-column:span 3}.lesson-edit-button{grid-column:span 3}.compact-card{min-height:264px}.compact-card .lesson-actions{grid-template-columns:1fr}.compact-card .lesson-actions .primary{grid-column:auto;width:100%}.compact-card .lesson-card-title h3{font-size:15px}.compact-card>p{min-height:34px}
.show-more-wrap{display:flex;align-items:center;justify-content:center;gap:12px;margin:16px 0 4px}.show-more-wrap small{color:var(--muted);font-weight:800}.show-more-lessons{min-width:190px}
.dashboard-banner{display:grid;grid-template-columns:minmax(0,.85fr) minmax(520px,1.15fr);gap:20px;align-items:center;padding:24px;margin-bottom:15px;background:linear-gradient(135deg,#fff,#f4f1ff 55%,#eef8ff)}.dashboard-banner h2{font-size:34px;margin:6px 0}.dashboard-banner p{margin:0;color:var(--muted);line-height:1.55}.teacher-banner{border-left:5px solid #5b4cf0}.student-banner{border-left:5px solid #14a56f}.dashboard-quick-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.quick-action{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:auto auto;column-gap:10px;text-align:left;align-items:center;min-height:74px;padding:12px 13px}.quick-action>span{grid-row:1/3;font-size:25px}.quick-action strong,.quick-action small{display:block}.quick-action strong{font-size:13px}.quick-action small{font-size:10px;margin-top:3px;color:inherit;opacity:.72}.dashboard-metrics{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:20px}.polished-metric{display:flex;align-items:center;gap:12px;min-height:112px;padding:17px}.metric-icon{width:45px;height:45px;display:grid;place-items:center;border-radius:15px;background:linear-gradient(145deg,#f5f1ff,#edf7ff);font-size:23px}.metric-copy{min-width:0}.polished-metric strong{font-size:28px}.polished-metric em{font-size:11px}.dashboard-columns{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);gap:20px}.dashboard-section-head{align-items:center;margin-top:0}.dashboard-section-head h2{font-size:24px}.dashboard-stack{display:grid;gap:10px}.dashboard-stack .card{min-height:0}.dashboard-stack .empty{padding:26px}.dashboard-columns .empty{min-height:230px;display:grid;place-content:center}
.polished-game-top{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center}.game-title-block{min-width:0}.game-title-block>strong{display:block;font-size:15px}.game-context{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}.game-context b,.game-context em{padding:4px 7px;border-radius:999px;font-size:9px;font-style:normal}.game-context b{background:#eeeaff;color:#5145c6}.game-context em{background:#f3f4f8;color:#686477}.game-progress-panel{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;margin:0 2px 10px}.game-progress-panel>span{height:9px;border-radius:999px;background:#e7e4f4;overflow:hidden}.game-progress-panel b{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#5b4cf0,#4bc790);transition:width .25s ease}.game-progress-panel small{font-size:10px;color:var(--muted);font-weight:850}.polished-game-tools{margin-bottom:10px}.polished-game-tools .notice{margin:0;min-height:42px;display:flex;align-items:center}
.result-page{max-width:1080px}.polished-result{padding:28px}.result-summary{display:grid;grid-template-columns:auto minmax(0,1fr);gap:25px;align-items:center;text-align:left;max-width:820px;margin:0 auto 22px}.mastery-ring{--mastery:0;position:relative;width:150px;height:150px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(#5b4cf0 calc(var(--mastery)*1%),#e8e5f5 0);box-shadow:0 16px 35px rgba(60,48,120,.14)}.mastery-ring::before{content:"";position:absolute;inset:13px;border-radius:50%;background:#fff}.mastery-ring>span{position:relative;z-index:1;text-align:center}.mastery-ring strong,.mastery-ring small{display:block}.mastery-ring strong{font-size:34px;color:#332d70}.mastery-ring small{font-size:10px;color:var(--muted);font-weight:900;text-transform:uppercase;letter-spacing:.08em}.mastery-ring.mastered{background:conic-gradient(#0f9d67 calc(var(--mastery)*1%),#e8e5f5 0)}.mastery-ring.secure{background:conic-gradient(#4c7de8 calc(var(--mastery)*1%),#e8e5f5 0)}.mastery-ring.developing{background:conic-gradient(#e3a01a calc(var(--mastery)*1%),#e8e5f5 0)}.mastery-ring.needs-practice{background:conic-gradient(#dc6b64 calc(var(--mastery)*1%),#e8e5f5 0)}.result-copy h1{font-size:38px;margin:6px 0 8px}.result-copy p{margin:9px 0;color:var(--muted);line-height:1.5}.mastery-band{display:inline-flex;padding:7px 11px;border-radius:999px;font-size:11px;font-weight:950}.mastery-band.mastered{background:#e7faf1;color:#087558}.mastery-band.secure{background:#eef4ff;color:#2f65bc}.mastery-band.developing{background:#fff6db;color:#8b5b00}.mastery-band.needs-practice{background:#fff0ef;color:#a62c22}.result-metrics{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:16px}.result-metrics .polished-metric{min-height:96px}.polished-review-summary{display:flex;justify-content:space-between;align-items:center;gap:14px;max-width:none}.polished-review-summary h3{margin:0 0 5px}.result-notice{max-width:none}.polished-result .result-actions{justify-content:center;margin-top:18px}
html[data-motion=reduced] .lesson-card,html[data-motion=reduced] .game-progress-panel b{transition:none;transform:none}
@media(max-width:1120px){.polished-filters{grid-template-columns:repeat(3,minmax(150px,1fr))}.polished-filters .filter-search{grid-column:span 2}.dashboard-banner{grid-template-columns:1fr}.dashboard-columns{grid-template-columns:1fr}.dashboard-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.polished-filters{grid-template-columns:repeat(2,minmax(0,1fr))}.polished-filters .filter-search{grid-column:1/-1}.filter-summary{align-items:flex-start;flex-direction:column}.lesson-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-actions .primary,.lesson-edit-button{grid-column:span 2}.dashboard-quick-actions{grid-template-columns:1fr}.dashboard-metrics{grid-template-columns:1fr 1fr}.polished-game-top{grid-template-columns:auto 1fr}.polished-game-top .stats{grid-column:1/-1;justify-content:center}.game-progress-panel{grid-template-columns:1fr}.game-progress-panel small{text-align:center}.result-summary{grid-template-columns:1fr;text-align:center}.mastery-ring{margin:auto}.result-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.polished-review-summary{align-items:stretch;flex-direction:column}.polished-review-summary button{width:100%}}
@media(max-width:520px){.polished-filters{grid-template-columns:1fr}.polished-filters .filter-search{grid-column:auto}.lesson-card-head{grid-template-columns:auto minmax(0,1fr)}.lesson-country{grid-column:2}.lesson-card{min-height:0}.dashboard-banner{padding:18px}.dashboard-banner h2{font-size:28px}.dashboard-metrics{grid-template-columns:1fr}.polished-result{padding:20px 14px}.result-copy h1{font-size:31px}.result-metrics{grid-template-columns:1fr}.show-more-wrap{flex-direction:column}}

/* v2.4.2 complete visual coverage and lesson completeness */
.lesson-subset-notice{border-color:#d9d2ff;background:linear-gradient(135deg,#f8f6ff,#eef7ff);text-align:center}.lesson-quality.visual-quality{white-space:nowrap}.game-context em:last-child{font-weight:800;color:#4f46a5}


/* v2.4.2 phased learning and mastery replay */
.mastery-replay-note.phase-note{background:linear-gradient(135deg,#f5f7ff,#eef9ff);border-color:#cfdaf8}
.mastery-replay-note.phase-note strong{color:#3349a8}
.result-actions [data-a="continue-memory-phase"]{box-shadow:0 10px 24px rgba(91,76,240,.2)}

/* v2.7.0 lesson families, grade progression, and two-sided visual lessons */
.lesson-family-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 0 8px;padding:7px 9px;border:1px solid #e4e0f5;border-radius:11px;background:#faf9ff;color:#5d5870;font-size:9px;font-weight:850}.lesson-family-row span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lesson-family-row b{flex:0 0 auto;color:#5145c6}
.lesson-progression{margin:0 0 16px;padding:14px;border:1px solid #dcd7f4;border-radius:18px;background:linear-gradient(145deg,#fbfaff,#f3f8ff)}.lesson-progression-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.lesson-progression-head span strong,.lesson-progression-head span small{display:block}.lesson-progression-head span strong{font-size:14px;color:#332d70}.lesson-progression-head span small{margin-top:3px;color:var(--muted);font-size:10px}.lesson-progression-head>b{padding:6px 9px;border-radius:999px;background:#ece8ff;color:#5145c6;font-size:9px}
.lesson-progression-levels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.progression-level{display:grid;gap:3px;text-align:left;padding:10px 11px;border:1px solid #dcd8ef;border-radius:13px;background:#fff;color:#4c4860}.progression-level span{font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:.04em;color:#706a8c}.progression-level strong{font-size:12px}.progression-level small{font-size:9px;color:var(--muted)}.progression-level.active{border-color:#6d5ff2;background:#f1eeff;box-shadow:0 0 0 3px rgba(91,76,240,.12)}
.lesson-selection-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.lesson-selection-summary>span{padding:10px 11px;border:1px solid var(--line);border-radius:13px;background:#fafbff}.lesson-selection-summary small,.lesson-selection-summary strong{display:block}.lesson-selection-summary small{font-size:9px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:900}.lesson-selection-summary strong{margin-top:4px;font-size:11px;color:#443d79}
@media(max-width:700px){.lesson-progression-levels,.lesson-selection-summary{grid-template-columns:1fr}.lesson-progression-head{align-items:flex-start}.lesson-family-row{align-items:flex-start;flex-direction:column}.lesson-family-row span{white-space:normal}}

/* v2.7.0 consolidated lesson families, public live links, and Quiz Challenge */
.activity-choice-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.mode-choice.recommended-mode .mode-choice-body{border-color:#c9c1ff;background:linear-gradient(145deg,#fbfaff,#f2f5ff)}
.mode-choice.recommended-mode .mode-choice-title{color:#5145c6!important}
.lesson-level-chips{display:flex;gap:5px;flex-wrap:wrap;margin:0 0 8px}
.lesson-level-chips span{padding:5px 7px;border-radius:999px;background:#f1efff;color:#5145c6;font-size:9px;font-weight:900}
.live-room-card .actions{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.live-room-card .actions .danger{grid-column:1/-1}
.live-link-field{display:grid;gap:5px;margin:12px 0}
.live-link-field span{font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.live-link-field input{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:10px;background:#fafbff;color:#5145c6;font-size:10px;font-weight:800}
.live-share-modal{text-align:center}
.live-share-code{display:grid;gap:7px;margin:10px auto 16px;padding:18px;border-radius:18px;background:linear-gradient(145deg,#f2efff,#eef8ff)}
.live-share-code small{font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}
.live-share-code strong{font-size:38px;letter-spacing:.15em;color:#5145c6}
.quiz-panel{background:linear-gradient(145deg,#fff,#f7f4ff 58%,#eef9ff)}
.quiz-panel .quick-choice{position:relative;border-width:3px;min-height:116px}
.quiz-panel .quick-choice::before{position:absolute;left:12px;top:10px;font-size:12px;font-weight:950;opacity:.55}
.quiz-panel .choice-1::before{content:"A"}.quiz-panel .choice-2::before{content:"B"}.quiz-panel .choice-3::before{content:"C"}.quiz-panel .choice-4::before{content:"D"}
.quiz-panel .choice-1{background:#fff6f5}.quiz-panel .choice-2{background:#f3f7ff}.quiz-panel .choice-3{background:#fffbed}.quiz-panel .choice-4{background:#f2fbf7}
.quiz-panel .quick-choice.revealed-correct{background:#eafaf2}
.quiz-panel .quick-choice.wrong{background:#fff0ef}
@media(max-width:1050px){.activity-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.activity-choice-grid{grid-template-columns:1fr}.live-room-card .actions{grid-template-columns:1fr}.live-room-card .actions .danger{grid-column:auto}.live-share-code strong{font-size:30px}}


/* v2.7.2 readable lesson titles and card-face content across all modes */
.lesson-card-head{display:grid;gap:9px;min-width:0}
.lesson-card-meta{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:9px;min-width:0}
.lesson-card-meta>.eyebrow{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lesson-card-title{display:block!important;margin:0!important;color:#211d38!important;font-weight:950;letter-spacing:-.015em;line-height:1.2;text-wrap:balance;overflow-wrap:anywhere;word-break:normal;hyphens:auto;min-height:2.4em}
.lesson-card-title.title-normal{font-size:17px!important}
.lesson-card-title.title-long{font-size:15.5px!important;line-height:1.22}
.lesson-card-title.title-extra-long{font-size:14px!important;line-height:1.24;letter-spacing:-.01em}
.lesson-country{font-size:9px;max-width:100%;overflow:hidden;text-overflow:ellipsis}
.lesson-family-row span{white-space:normal;overflow:visible;text-overflow:clip;line-height:1.3}
.lesson-progression-head>span{min-width:0;flex:1}
.lesson-progression-head span strong{white-space:normal;overflow-wrap:anywhere;text-wrap:balance;line-height:1.25}
.lesson-progression-head span strong.title-long{font-size:13.5px}
.lesson-progression-head span strong.title-extra-long{font-size:12.5px}
.game-title-block>strong{color:#211d38;white-space:normal;overflow-wrap:anywhere;text-wrap:balance;line-height:1.2}
.game-title-block>strong.title-long{font-size:14px}
.game-title-block>strong.title-extra-long{font-size:13px}
@media(max-width:760px){
  .lesson-card-title{min-height:0}
  .lesson-card-title.title-normal{font-size:16px!important}
  .lesson-card-title.title-long{font-size:15px!important}
  .lesson-card-title.title-extra-long{font-size:14px!important}
  .lesson-card-meta{grid-template-columns:auto minmax(0,1fr)}
  .lesson-country{grid-column:2;justify-self:start}
}
@media(max-width:420px){
  .lesson-card-title.title-extra-long{font-size:13.5px!important}
  .lesson-progression-head{flex-direction:column}
  .lesson-progression-head>b{align-self:flex-start}
}

/* v2.7.2 content-aware lesson card readability */
@media(max-width:650px){.board.content-long,.board.content-extra-long{grid-template-columns:repeat(var(--mobile-cols),minmax(0,1fr))}.board.content-long .memory,.board.content-long .inner{min-height:94px}.board.content-extra-long .memory,.board.content-extra-long .inner{min-height:108px}.board.content-long .face,.board.content-extra-long .face{padding:7px}.edu-face.text-extra-long .edu-text{font-size:11px}.math-expression.text-extra-long .edu-text{font-size:13px}}

/* Education v2.8.0 independent versioning, cache recovery, and library polish */
.education-version-chip{display:inline-flex;align-items:center;justify-content:center;padding:7px 10px;border:1px solid #ddd8f7;border-radius:999px;background:#f7f5ff;color:#5145c6;font-size:10px;font-weight:950;white-space:nowrap}.regular-game-link{text-decoration:none}.education-donate-button{background:#fff7ea;color:#8a5600;border-color:#f1d7a2}
.education-update-banner{width:min(1240px,calc(100% - 28px));margin:12px auto 0;padding:13px 15px;display:flex;align-items:center;justify-content:space-between;gap:15px;border:1px solid #f1ce6b;border-radius:17px;background:linear-gradient(135deg,#fff9dc,#fff4ef);box-shadow:0 12px 28px rgba(124,84,0,.08)}
.education-update-banner div{min-width:0}.education-update-banner strong,.education-update-banner span{display:block}.education-update-banner strong{color:#755000;font-size:13px}.education-update-banner span{margin-top:3px;color:#74664f;font-size:11px;line-height:1.45}.education-update-banner .primary{flex:0 0 auto;text-decoration:none}
.lesson-library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,288px));justify-content:start;align-items:stretch;gap:12px;width:100%}
.lesson-library-grid .lesson-card{width:100%;max-width:288px;height:100%}
.lesson-library-grid-compact{grid-template-columns:repeat(auto-fill,minmax(225px,280px));gap:10px}
.lesson-library-grid-compact .lesson-card{max-width:280px}
.lesson-library-grid-full .lesson-card{min-height:300px}
@media(max-width:760px){.education-update-banner{align-items:stretch;flex-direction:column}.education-update-banner .primary{text-align:center}.lesson-library-grid,.lesson-library-grid-compact{grid-template-columns:repeat(2,minmax(0,1fr));justify-content:stretch}.lesson-library-grid .lesson-card{max-width:none}.education-version-chip{display:inline-flex;font-size:9px;padding:6px 8px}}
@media(max-width:520px){.lesson-library-grid,.lesson-library-grid-compact{grid-template-columns:1fr}.lesson-library-grid-full .lesson-card{min-height:0}}
.new-lesson-card{border-color:rgba(91,76,240,.26);box-shadow:0 16px 34px rgba(60,48,120,.11)}
.new-quality{background:#fff1c7;color:#8b5b00;letter-spacing:.08em}

/* Education v2.8.1 all-library title and card-text resilience */
.lesson-card-head{
  display:grid!important;
  grid-template-columns:minmax(0,1fr)!important;
  grid-auto-flow:row!important;
  align-content:start;
  width:100%;
  min-width:0;
}
.lesson-card-meta{
  grid-column:1/-1!important;
  width:100%;
  min-width:0;
}
.lesson-card-title{
  grid-column:1/-1!important;
  width:100%;
  max-width:100%;
  overflow-wrap:break-word!important;
  word-break:normal!important;
  hyphens:auto;
}
.lesson-card-title.title-extra-long{max-width:30ch}
.lesson-family-row,.lesson-family-row span,.lesson-family-row b{min-width:0}
.lesson-family-row span,.lesson-family-row b{overflow-wrap:break-word;word-break:normal}
.lesson-progression-head span strong{overflow-wrap:break-word!important;word-break:normal!important}
.game-title-block{min-width:0;max-width:100%}
.game-title-block>strong{display:block;max-width:100%;overflow-wrap:break-word!important;word-break:normal!important}
.edu-text,.quick-face>span:last-child,.quick-choice{
  overflow-wrap:break-word!important;
  word-break:normal!important;
  hyphens:auto;
}
.board.content-long .edu-face,.board.content-extra-long .edu-face{overflow:visible}
.board.content-extra-long .memory,.board.content-extra-long .inner{min-height:136px}
.board.content-extra-long .face{padding:12px}
.edu-face.text-extra-long .edu-text{font-size:clamp(10.5px,1.05vw,13.5px);line-height:1.16}
.math-expression.text-extra-long .edu-text{font-size:clamp(12px,1.25vw,17px);line-height:1.12}
.quick-prompt,.quick-choice{max-width:100%;min-width:0}
.quick-prompt .quick-face,.quick-choice .quick-face{min-width:0}
@media(max-width:760px){
  .lesson-card-meta{grid-template-columns:auto minmax(0,1fr) auto!important}
  .lesson-country{grid-column:auto!important;justify-self:end!important}
  .lesson-card-title.title-extra-long{max-width:none}
}
@media(max-width:520px){
  .lesson-card-meta{grid-template-columns:auto minmax(0,1fr)!important}
  .lesson-country{grid-column:2!important;justify-self:start!important}
  .board.content-extra-long .memory,.board.content-extra-long .inner{min-height:124px}
  .board.content-extra-long .face{padding:8px}
}

/* Education v2.8.3: simplified interface and expanded lesson choices */
.library-view-toggle{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:min(760px,100%);margin:14px 0 16px}.library-view-toggle button{min-width:0;padding:13px 15px;text-align:left;border:1px solid #ddd8f7;border-radius:16px;background:#fff;color:#292446;box-shadow:0 6px 18px rgba(66,54,151,.05)}.library-view-toggle button strong,.library-view-toggle button small{display:block;overflow-wrap:anywhere}.library-view-toggle button strong{font-size:13px}.library-view-toggle button small{margin-top:4px;color:#79728f;font-size:10px;line-height:1.35}.library-view-toggle button.active{border-color:#6856ef;background:linear-gradient(135deg,#f0edff,#eef8ff);box-shadow:0 0 0 2px rgba(104,86,239,.12)}
.lesson-library-grid{align-items:stretch}.lesson-card,.lesson-card-head,.lesson-card-meta,.lesson-card-title,.lesson-family-row,.lesson-quality-row,.lesson-standard{min-width:0}.lesson-card-title,.lesson-family-row span,.lesson-family-row b,.lesson-standard{overflow-wrap:anywhere;word-break:normal;hyphens:auto}.lesson-card._individual-level{min-width:0}
.combine-topics-panel{margin:18px 0 20px;padding:16px;border:1px solid #d9d3fa;border-radius:20px;background:linear-gradient(145deg,#fbfaff,#f5fbff);box-shadow:0 12px 30px rgba(64,53,143,.07)}.combine-topics-head,.combine-topic-footer,.combine-topic-actions{display:flex;align-items:center;justify-content:space-between;gap:14px}.combine-topics-head>div,.combine-topic-footer>p{min-width:0}.combine-topics-head h3{margin:3px 0 4px;font-size:18px}.combine-topics-head p,.combine-topic-footer p{margin:0;color:#746e87;font-size:11px;line-height:1.5}.combine-selected-count{flex:0 0 auto;padding:7px 10px;border-radius:999px;background:#ebe7ff;color:#5145c6;font-size:10px;font-weight:900}.combine-topic-filters{display:grid;grid-template-columns:1.5fr repeat(3,minmax(130px,.8fr));gap:9px;margin-top:14px}.combine-topic-filters label{min-width:0}.combine-topic-filters span{display:block;margin:0 0 5px;color:#5e5870;font-size:10px;font-weight:850}.combine-topic-filters input,.combine-topic-filters select{width:100%;min-width:0;padding:10px 11px;border:1px solid #ddd8f7;border-radius:12px;background:#fff;color:#292446}.combine-topic-actions{justify-content:flex-start;margin:11px 0 8px}.combine-topic-actions span{margin-left:auto;color:#777087;font-size:10px}.combine-topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;max-height:360px;padding:3px;overflow:auto;overscroll-behavior:contain}.combine-topic-option{display:flex;align-items:flex-start;gap:9px;min-width:0;padding:10px;border:1px solid #e3def9;border-radius:13px;background:#fff;cursor:pointer}.combine-topic-option:hover{border-color:#9d90ef;background:#faf9ff}.combine-topic-option input{margin-top:3px;flex:0 0 auto}.combine-topic-option span,.combine-topic-option strong,.combine-topic-option small{display:block;min-width:0}.combine-topic-option strong{font-size:11px;line-height:1.35;overflow-wrap:anywhere}.combine-topic-option small{margin-top:3px;color:#7b748d;font-size:9px;line-height:1.35;overflow-wrap:anywhere}.combine-topic-option:has(input:checked){border-color:#6856ef;background:#f1efff;box-shadow:0 0 0 2px rgba(104,86,239,.08)}.combine-topic-footer{margin-top:12px;padding-top:12px;border-top:1px solid #e5e0f7}.combine-topic-footer .primary{flex:0 0 auto}.pairs+.field-note,[data-pair-total]{color:#746e87;font-size:10px}.education-update-banner.update-paused{border-color:#d4c5f5;background:linear-gradient(135deg,#f8f4ff,#f5f9ff)}.education-update-banner.update-paused strong{color:#5145c6}
.modal.wide{width:min(1120px,calc(100vw - 30px));max-height:min(900px,calc(100vh - 30px));overflow:auto}.pair-rich{min-width:0}.pair-rich input,.pair-rich textarea{min-width:0}
@media(max-width:900px){.combine-topic-filters{grid-template-columns:repeat(2,minmax(0,1fr))}.combine-topic-list{grid-template-columns:1fr}.library-view-toggle{width:100%}}
@media(max-width:620px){.library-view-toggle{grid-template-columns:1fr}.combine-topics-panel{padding:12px}.combine-topics-head,.combine-topic-footer{align-items:stretch;flex-direction:column}.combine-selected-count{align-self:flex-start}.combine-topic-filters{grid-template-columns:1fr}.combine-topic-actions{align-items:stretch;flex-wrap:wrap}.combine-topic-actions span{width:100%;margin-left:0}.combine-topic-footer .primary{width:100%}.combine-topic-list{max-height:300px}}
.combine-topic-footer p span,.combine-topic-footer p strong{display:block}.combine-topic-footer p strong{margin-top:5px;color:#5145c6;font-size:10px}


/* Education v2.8.3: user-facing lesson choices */
.lesson-level-chips{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin:2px 0 9px;max-height:190px;overflow:auto;padding-right:2px}
.lesson-level-chip{min-width:0;display:grid;gap:3px;text-align:left;padding:8px 9px;border:1px solid #e2def6;border-radius:11px;background:#f8f7ff;color:#302a57}
.lesson-level-chip:hover,.lesson-level-chip:focus-visible{border-color:#6c5af0;background:#f0edff;box-shadow:0 0 0 2px rgba(108,90,240,.1)}
.lesson-level-chip span{font-size:8px;font-weight:950;letter-spacing:.04em;text-transform:uppercase;color:#746d91}
.lesson-level-chip strong{min-width:0;font-size:10px;line-height:1.25;overflow-wrap:anywhere;word-break:normal}
.lesson-new-badge{padding:4px 7px;border-radius:999px;background:#fff1bf;color:#765800;font-size:8px;font-weight:950;letter-spacing:.05em}
.settings-version{display:block;margin-top:16px;text-align:center;color:#8a849f;font-size:10px}
.lesson-card .lesson-standard{display:block;line-height:1.4}
@media(max-width:620px){.lesson-level-chips{grid-template-columns:1fr;max-height:220px}}

/* Education v2.9.2: resumable activities, focus-mode attempts, and reusable live rooms */
.session-choice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;width:100%}
.session-choice{position:relative;display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:9px;min-width:0;padding:12px;border:1px solid #dfdaf7;border-radius:15px;background:#fff;color:#302a57;cursor:pointer;box-shadow:0 6px 18px rgba(66,54,151,.04)}
.session-choice:hover{border-color:#9588ed;background:#faf9ff}.session-choice:has(input:checked){border-color:#6655ed;background:linear-gradient(145deg,#f1efff,#f5fbff);box-shadow:0 0 0 2px rgba(102,85,237,.1)}
.session-choice input{margin:3px 0 0;flex:0 0 auto}.session-choice span,.session-choice strong,.session-choice small{display:block;min-width:0}.session-choice strong{font-size:11px;line-height:1.35;overflow-wrap:anywhere}.session-choice small{margin-top:3px;color:#777087;font-size:9px;line-height:1.4;overflow-wrap:anywhere}
.active-attempt-panel{margin:0 0 18px;padding:15px;border:1px solid #cfc7fa;border-radius:19px;background:linear-gradient(135deg,#f4f1ff,#f0faff);box-shadow:0 12px 28px rgba(77,62,171,.08)}
.active-attempt-panel .section-head{margin-bottom:10px}.active-attempt-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.active-attempt-item{display:flex;align-items:center;justify-content:space-between;gap:12px;min-width:0;padding:11px 12px;border:1px solid #ddd8f7;border-radius:14px;background:#fff}.active-attempt-item>div{min-width:0}.active-attempt-item strong,.active-attempt-item small{display:block;min-width:0;overflow-wrap:anywhere}.active-attempt-item strong{font-size:11px;color:#302a57}.active-attempt-item small{margin-top:3px;color:#777087;font-size:9px;line-height:1.4}.active-attempt-item .primary{flex:0 0 auto}
.session-tag,.session-status{display:inline-flex;align-items:center;justify-content:center;gap:5px;max-width:100%;padding:5px 8px;border-radius:999px;background:#ece8ff;color:#5145c6;font-size:8px;font-weight:900;letter-spacing:.03em;line-height:1.2;text-align:center;overflow-wrap:anywhere}.session-status{background:#fff7d9;color:#795d00}.session-status.locked{background:#ffe9ed;color:#a32f4a}.session-status.paused{background:#e8f7ff;color:#156282}
.assignment-card.has-active-attempt,.live-card.has-active-attempt{border-color:#7767ef;box-shadow:0 0 0 2px rgba(119,103,239,.08),0 14px 30px rgba(70,57,153,.09)}
.game-top .session-status{margin-left:6px}.focus-mode-note{padding:9px 11px;border-radius:12px;background:#fff8dc;color:#685300;font-size:9px;line-height:1.45}.live-reuse-actions{display:flex;align-items:center;flex-wrap:wrap;gap:7px}
@media(max-width:820px){.session-choice-grid{grid-template-columns:1fr}.active-attempt-list{grid-template-columns:1fr}}
@media(max-width:520px){.active-attempt-panel{padding:12px}.active-attempt-item{align-items:stretch;flex-direction:column}.active-attempt-item .primary{width:100%}.game-top .session-status{margin-left:0}}
.session-choice{display:block}.session-choice-body{position:relative;display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:10px;height:100%;min-height:108px;padding:12px;border-radius:14px}.session-choice-body>b{font-size:25px;line-height:1}.session-choice-body>span{min-width:0}.session-choice-body em{display:none;grid-column:1/-1;margin-top:auto;color:#5145c6;font-size:8px;font-style:normal;font-weight:950;letter-spacing:.08em;text-transform:uppercase}.choice-radio>input:checked+.session-choice-body em{display:block}.choice-radio>input:focus-visible+.session-choice-body{outline:3px solid rgba(91,76,240,.3);outline-offset:3px}


/* Education v2.9.2: balanced header, cleaner education branding, and donate icons */
.support-home-card{margin:18px 0 22px;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px;background:linear-gradient(135deg,rgba(255,247,234,.94),rgba(246,245,255,.96));border:1px solid rgba(241,215,162,.7);border-radius:22px;box-shadow:0 14px 35px rgba(60,48,120,.08)}
.support-home-copy{display:flex;flex-direction:column;gap:4px}.support-home-copy strong{font-size:20px}.support-home-copy small{color:var(--muted);line-height:1.5;max-width:760px}
.support-backdrop{padding:16px}.support-modal{width:min(540px,100%);padding:22px}.support-copy{margin:0 0 16px;color:var(--muted);line-height:1.55}
.support-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}.support-tabs-three{grid-template-columns:repeat(3,1fr)}
.support-tabs button{border:1px solid #ddd8eb;background:#f6f4ff;color:#5c5680;border-radius:14px;padding:12px 14px;font-weight:850;cursor:pointer}.support-tabs button.active{background:#5b4cf0;color:#fff;border-color:#5b4cf0}
.support-qr-panel{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding:18px;border-radius:20px;background:#fbfbff;border:1px solid #ece8f6}.support-qr-frame{width:min(320px,100%);aspect-ratio:1/1;border-radius:22px;background:#fff;display:grid;place-items:center;padding:14px;box-shadow:inset 0 0 0 1px #ece8f6}.support-qr-frame img{max-width:100%;max-height:100%;width:auto;height:auto;display:block;border-radius:14px}.support-qr-panel strong{font-size:22px}.support-qr-panel small{color:var(--muted);line-height:1.45;max-width:360px}
.support-paypal-panel{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;padding:24px;border-radius:20px;background:linear-gradient(145deg,#f3f7ff,#fff);border:1px solid #dfe8fb}.support-paypal-icon{width:76px;height:76px;border-radius:24px;display:grid;place-items:center;background:#123f95;color:#fff;font-size:42px;font-weight:950;box-shadow:0 10px 24px rgba(18,63,149,.2)}.support-paypal-panel strong{font-size:22px}.support-paypal-panel small{color:var(--muted);line-height:1.5;max-width:390px}.support-paypal-panel em{font-size:11px;color:var(--muted);font-style:normal}.support-paypal-panel .primary{max-width:320px;margin-top:4px}
.support-actions{display:grid;grid-template-columns:1fr;gap:10px;margin-top:16px}.full{width:100%}.footer-support{padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.72);border:1px solid #e7e3f1;color:#5b4cf0;font-weight:850}
@media(max-width:760px){.header{align-items:flex-start}.header-actions{justify-content:flex-end}.regular-game-link{order:4}.education-version-chip{order:1}.education-donate-button{order:2}.profile-chip,.header-actions>.primary{order:3}.header-actions>.icon{order:5}.support-home-card{flex-direction:column;align-items:flex-start}.support-home-card .secondary{width:100%}}
@media(max-width:520px){.brand span{display:none}.header{padding:9px 10px}.header-actions{gap:5px}.education-version-chip{font-size:8px;padding:6px}.education-donate-button,.regular-game-link{padding:8px 9px;font-size:9px}.support-tabs-three{grid-template-columns:1fr}.support-tabs-three button{padding:10px}}


/* Education v2.9.2: balanced header, cleaner education branding, and donate icons */
.header{gap:18px}
.header-actions{margin-left:auto;justify-content:flex-end;flex:1 1 auto;min-width:0}
.header-actions .secondary,.header-actions .primary,.footer-support{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:38px}
.education-donate-button,.footer-support{font-weight:900}
.regular-game-link{display:inline-flex;align-items:center;justify-content:center}
.button-icon{display:inline-flex;align-items:center;justify-content:center;line-height:1;font-size:14px}
.brand small{letter-spacing:.12em}
.support-home-card .education-donate-button{min-width:120px}
.footer-support{gap:6px}
@media(max-width:760px){
  .header{align-items:flex-start}
  .header-actions{justify-content:flex-end}
  .education-donate-button{order:1}
  .regular-game-link{order:2}
  .profile-chip,.header-actions>.primary{order:3}
  .header-actions>.icon{order:4}
}
@media(max-width:650px){
  .header-actions .secondary.education-donate-button,.header-actions .secondary.regular-game-link{display:inline-flex}
}
@media(max-width:520px){
  .brand img{width:40px;height:40px}
  .brand span{display:block}
  .brand strong{font-size:14px}
  .brand small{font-size:8px}
  .header{padding:9px 10px}
  .header-actions{gap:6px;flex-wrap:wrap}
  .education-donate-button,.regular-game-link{padding:8px 10px;font-size:9px}
  .header-actions .primary{padding:8px 10px;font-size:9px}
}


/* Education v2.9.2: balanced library controls and equal lesson columns */
.library-command-head{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:24px;margin:8px 0 16px}
.library-command-copy{min-width:0}.library-command-copy>p{margin:5px 0 0;color:var(--muted);line-height:1.5}
.library-title-row{display:flex;align-items:center;gap:12px;min-width:0;flex-wrap:wrap}.library-title-row h2{margin:3px 0 0;font-size:31px;line-height:1.08;letter-spacing:-.025em}
.library-count-badges{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.library-count-badges span,.library-count-badges strong{display:inline-flex;align-items:center;min-height:29px;padding:6px 10px;border-radius:999px;font-size:10px;line-height:1;font-weight:900;white-space:nowrap}.library-count-badges span{background:#f0edff;color:#5a4ec7}.library-count-badges strong{background:#eaf8f1;color:#147052}
.library-create-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;white-space:nowrap}.library-create-button>span:first-child{font-size:17px;line-height:1}
.polished-filters{grid-template-columns:repeat(5,minmax(0,1fr));gap:9px 10px}.polished-filters .filter-search{grid-column:1/-1}.polished-filters .filter-sort{min-width:0}
.lesson-library-grid-full{grid-template-columns:repeat(4,minmax(0,1fr));justify-content:stretch;gap:14px}.lesson-library-grid-full .lesson-card{max-width:none;width:100%;padding:15px}.lesson-library-grid-full .lesson-actions{margin-top:auto}
@media(max-width:1120px){.polished-filters{grid-template-columns:repeat(3,minmax(150px,1fr))}.polished-filters .filter-search{grid-column:1/-1}.lesson-library-grid-full{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:860px){.library-command-head{grid-template-columns:1fr;align-items:start;gap:13px}.library-create-button{justify-self:start}.lesson-library-grid-full{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.polished-filters{grid-template-columns:repeat(2,minmax(0,1fr))}.polished-filters .filter-search{grid-column:1/-1}}
@media(max-width:520px){.library-title-row{align-items:flex-start;flex-direction:column;gap:8px}.library-title-row h2{font-size:27px}.library-count-badges{width:100%}.library-create-button{width:100%}.polished-filters{grid-template-columns:1fr}.polished-filters .filter-search{grid-column:auto}.lesson-library-grid-full{grid-template-columns:1fr}}


/* Education v2.9.2: complete-library country filter */
.country-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;width:min(930px,100%)}
.country-tab{width:100%;min-width:0;max-width:none;flex:none}
@media(max-width:700px){.country-tabs{grid-template-columns:1fr}.country-tab{width:100%}}

/* Education v2.9.2: clearer choices, Filipino AP localization, and ambiguity-safe quizzes */
.pair-choice-body{position:relative;padding-bottom:18px}
.pair-choice-selected{display:none;position:absolute;left:0;bottom:0;color:#5145c6;font-size:8px;font-weight:950;letter-spacing:.06em;text-transform:uppercase}
.choice-radio>input:checked+.pair-choice-body .pair-choice-selected{display:block}
.quick-prompt-kind{display:inline-flex;margin:12px auto 0;padding:6px 9px;border-radius:999px;background:#efedff;color:#5145c6;font-size:9px;font-weight:950;letter-spacing:.1em}
.quick-choice{position:relative;justify-content:flex-start;text-align:left;padding:18px 18px 18px 58px}
.quick-choice::before{display:none!important;content:none!important}
.choice-marker{position:absolute;left:14px;top:50%;transform:translateY(-50%);display:grid;place-items:center;width:30px;height:30px;border-radius:10px;background:#eeeafe;color:#5145c6;font-size:13px;font-weight:950;box-shadow:inset 0 0 0 1px rgba(91,76,240,.12)}
.choice-content{display:flex;align-items:center;justify-content:center;width:100%;min-width:0;text-align:center}
.quick-choice.wrong .choice-marker{background:#ffe1df;color:#a62c22}
.quick-choice.revealed-correct .choice-marker,.quick-choice.hinted .choice-marker{background:#dff8ea;color:#087558}
@media(max-width:700px){.quick-choice{padding-left:54px}.choice-marker{left:12px}}

/* Education v2.9.2: clearer answer differences for structured A–D choices */
.choice-content{display:flex;align-items:center;justify-content:space-between;gap:10px;min-width:0;width:100%}
.choice-content>.quick-face{min-width:0;flex:1 1 auto}
.choice-distinction{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;min-width:34px;padding:5px 8px;border-radius:999px;background:#f0edff;border:1px solid #d9d2ff;color:#5145c6;font-size:10px;font-weight:950;letter-spacing:.02em;white-space:nowrap}
.quick-choice.wrong .choice-distinction{background:#fff0f2;border-color:#ffcbd4;color:#a22d46}
.quick-choice.revealed-correct .choice-distinction,.quick-choice.hinted .choice-distinction{background:#eaf8ef;border-color:#bde7ca;color:#176536}
@media(max-width:560px){.choice-content{align-items:flex-start;flex-direction:column;gap:6px}.choice-distinction{align-self:flex-start}}


/* Education v2.9.2: curriculum details, report export, resilient mobile controls, and mobile header repair */
.lesson-actions button,.report-toolbar button,.lesson-details-modal .modal-actions button{display:inline-flex;align-items:center;justify-content:center;gap:6px}
.lesson-actions{grid-template-columns:repeat(4,minmax(0,1fr))}
.lesson-actions .primary{grid-column:1/-1}
.lesson-details-button{grid-column:span 1}
.lesson-edit-button{grid-column:1/-1}
.curriculum-metadata-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:16px 0}
.curriculum-metadata-section{min-width:0;padding:14px;border:1px solid #ded9f5;border-radius:17px;background:linear-gradient(145deg,#fff,#f8f7ff)}
.curriculum-metadata-section h3{display:flex;align-items:center;gap:8px;margin:0 0 9px;font-size:14px;color:#352f75}
.curriculum-metadata-section ul{margin:0;padding-left:19px}.curriculum-metadata-section li{margin:7px 0;color:#625d75;font-size:11px;line-height:1.5;overflow-wrap:anywhere}
.lesson-detail-summary{display:flex;gap:7px;flex-wrap:wrap;margin:12px 0}.lesson-detail-summary span{padding:6px 9px;border-radius:999px;background:#f1efff;color:#5145c6;font-size:9px;font-weight:900}.lesson-detail-description{color:var(--muted);line-height:1.55}
.report-toolbar{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin:-4px 0 14px}.report-table-wrap{overflow:auto;border:1px solid #ece8f6;border-radius:14px}.report-table-wrap .table{margin:0;min-width:620px}
.report-curriculum-list{display:grid;gap:9px;margin-bottom:18px}.report-curriculum-item{border:1px solid #ded9f5;border-radius:15px;background:#fbfaff;overflow:hidden}.report-curriculum-item summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;cursor:pointer}.report-curriculum-item summary span,.report-curriculum-item summary strong,.report-curriculum-item summary small{display:block;min-width:0}.report-curriculum-item summary small{margin-top:3px;color:var(--muted);font-size:9px}.report-curriculum-item summary b{flex:0 0 auto;color:#5145c6;font-size:9px}.report-curriculum-item>.curriculum-metadata-section{margin:0 12px 12px}
.choice-radio.choice-unavailable{cursor:not-allowed}.choice-radio.choice-unavailable .mode-choice-body{border-style:dashed;background:#f4f3f7;color:#8c8798;box-shadow:none;filter:grayscale(.35)}.choice-radio.choice-unavailable .mode-choice-title,.choice-radio.choice-unavailable .mode-choice-description,.choice-radio.choice-unavailable .mode-choice-selected{color:#8c8798!important}.choice-radio.choice-unavailable .mode-choice-selected{display:block!important}.choice-radio.choice-unavailable .mode-choice-body::after{display:none!important}
.choice-radio>input:disabled+.mode-choice-body{pointer-events:none}
@media(max-width:900px){.curriculum-metadata-grid{grid-template-columns:1fr}.lesson-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-actions .primary,.lesson-edit-button{grid-column:1/-1}}
@media(max-width:700px){
  .header{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;padding:8px 10px}
  .brand{min-width:0}.brand img{width:40px;height:40px}.brand span{min-width:0}.brand strong{font-size:13px;white-space:nowrap}.brand small{font-size:7px;white-space:nowrap}
  .header-actions{display:flex;align-items:center;justify-content:flex-end;gap:5px;flex-wrap:nowrap;margin:0}
  .header-square-on-mobile,.header-settings,.profile-chip{width:40px!important;height:40px!important;min-width:40px!important;min-height:40px!important;padding:0!important;border-radius:13px!important}
  .header-action-label,.profile-name{display:none!important}
  .profile-chip{background:#f1efff!important;border-color:#dcd6fa!important;box-shadow:none!important}
  .profile-chip>.education-header-avatar{display:grid!important;width:30px;height:30px;border-radius:10px;margin:0!important}
  .header-actions .secondary,.header-actions .primary{display:inline-flex!important}
  .selection-modal{width:min(100%,calc(100vw - 12px));max-height:calc(100dvh - 12px);padding:15px 12px}
  .choice-fieldset{gap:7px}.choice-fieldset legend{font-size:12px}
  .image-choice-grid,.activity-choice-grid,.session-choice-grid{grid-template-columns:1fr!important;gap:7px}
  .mode-choice-body,.image-choice-body,.session-choice-body{width:100%;box-sizing:border-box;min-height:0!important;padding:11px 12px!important;border-radius:14px!important}
  .mode-choice-body{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:start;column-gap:9px;text-align:left}
  .mode-choice-icon,.mode-choice-body>b{grid-column:1;grid-row:1/4;margin:0!important;font-size:25px!important}
  .mode-choice-title,.mode-choice-description,.mode-choice-selected{grid-column:2;min-width:0}.mode-choice-title{font-size:14px!important}.mode-choice-description{font-size:10px!important;line-height:1.4!important;margin-top:4px!important}.mode-choice-selected{font-size:8px!important;padding-top:5px!important}
  .session-choice-body{display:grid;grid-template-columns:30px minmax(0,1fr);min-height:0!important}.session-choice-body>b{font-size:22px!important}.session-choice-body em{grid-column:2;font-size:8px}
  .pair-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:7px}.pair-choice-grid .pair-choice:first-child{grid-column:1/-1}.pair-choice-body{min-height:72px!important;border-radius:14px!important;padding:9px 6px!important}.pair-choice-label{white-space:normal!important;font-size:13px!important}.pair-choice-note{font-size:8px!important}
  .choice-radio>input:checked+.mode-choice-body::after,.choice-radio>input:checked+.pair-choice-body::after{right:7px;top:7px;width:19px;height:19px;font-size:10px}
  .report-toolbar{justify-content:stretch}.report-toolbar button{flex:1 1 180px}.report-modal{padding:16px 12px}
}
@media(max-width:430px){.brand span{display:none!important}.header{grid-template-columns:40px minmax(0,1fr)}.header-actions{min-width:0}.header-square-on-mobile,.header-settings,.profile-chip{width:38px!important;height:38px!important;min-width:38px!important;min-height:38px!important}.profile-chip>.education-header-avatar{width:28px;height:28px}.pair-choice-grid{grid-template-columns:1fr 1fr!important}}
@media(hover:none),(pointer:coarse){.choice-radio:hover .mode-choice-body,.choice-radio:hover .pair-choice-body{transform:none!important}.choice-radio{touch-action:manipulation;-webkit-tap-highlight-color:transparent}}

/* v2.9.2 lesson action balance */
.lesson-actions.teacher-lesson-actions{grid-template-columns:repeat(3,minmax(0,1fr))}
.lesson-actions.teacher-lesson-actions .primary,.lesson-actions.teacher-lesson-actions .lesson-edit-button{grid-column:1/-1}
.lesson-actions.learner-lesson-actions{grid-template-columns:repeat(2,minmax(0,1fr))}
.lesson-actions.learner-lesson-actions .primary{grid-column:auto}
.compact-card .lesson-actions.learner-lesson-actions{grid-template-columns:1fr 1fr}
@media(max-width:700px){.lesson-actions.teacher-lesson-actions{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-actions.teacher-lesson-actions .primary,.lesson-actions.teacher-lesson-actions .lesson-edit-button{grid-column:1/-1}}


/* Education v2.9.2: polished custom-set card builder */
.custom-set-backdrop{align-items:flex-start;padding:18px;overflow:auto}
.custom-set-modal{width:min(1180px,calc(100vw - 28px));max-height:none;overflow:visible;margin:auto;padding:0;background:#f7f7fc;border:1px solid #e2def3;box-shadow:0 26px 70px rgba(40,32,98,.2)}
.custom-set-modal>.modal-head{position:sticky;top:0;z-index:8;margin:0;padding:18px 20px;border-bottom:1px solid #e4e0f3;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-radius:22px 22px 0 0}
.custom-set-form{display:grid;gap:16px;padding:18px 20px 0}
.set-basics-card,.card-builder{padding:18px;border:1px solid #e2def3;border-radius:20px;background:#fff;box-shadow:0 10px 28px rgba(62,51,137,.06)}
.set-section-heading{display:flex;align-items:center;gap:11px;min-width:0}
.set-section-heading>span{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border-radius:12px;background:#eeebff;font-size:19px}
.set-section-heading>div{min-width:0}.set-section-heading strong,.set-section-heading small{display:block}.set-section-heading strong{font-size:15px;color:#292446}.set-section-heading small{margin-top:2px;color:#777087;font-size:10px;line-height:1.35}
.set-basics-grid{margin-top:15px}.set-basics-grid textarea{min-height:74px;resize:vertical}
.combine-topics-disclosure{border:1px solid #ddd8f7;border-radius:18px;background:#fff;overflow:hidden;box-shadow:0 8px 24px rgba(62,51,137,.04)}
.combine-topics-disclosure>summary{display:flex;align-items:center;gap:11px;padding:14px 16px;cursor:pointer;list-style:none}.combine-topics-disclosure>summary::-webkit-details-marker{display:none}
.combine-topics-disclosure>summary:hover{background:#faf9ff}.combine-topics-disclosure>summary>span:nth-child(2){min-width:0;flex:1}.combine-topics-disclosure>summary strong,.combine-topics-disclosure>summary small{display:block}.combine-topics-disclosure>summary strong{font-size:12px;color:#302a57}.combine-topics-disclosure>summary small{margin-top:3px;color:#777087;font-size:9px}.combine-topics-disclosure>summary>b{font-size:9px;color:#5145c6;text-transform:uppercase;letter-spacing:.08em}.combine-topics-disclosure[open]>summary>b{font-size:0}.combine-topics-disclosure[open]>summary>b:after{content:'Close';font-size:9px}.combine-summary-icon{width:34px;height:34px;display:grid;place-items:center;flex:0 0 34px;border-radius:11px;background:#f0edff;color:#5145c6;font-weight:950}
.combine-topics-disclosure .combine-topics-panel{margin:0;padding:16px;border:0;border-top:1px solid #e7e3f6;border-radius:0;box-shadow:none;background:linear-gradient(145deg,#fbfaff,#f5fbff)}
.card-builder{padding-bottom:20px}.card-builder-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:13px}.add-match-button,.add-match-bottom{display:inline-flex;align-items:center;justify-content:center;gap:7px}.add-match-bottom{width:100%;margin-top:12px;border-style:dashed;background:#faf9ff}
.pair-count-panel{display:grid;grid-template-columns:auto minmax(180px,1fr);align-items:center;gap:14px;margin-bottom:14px;padding:10px 12px;border-radius:14px;background:#f6f4ff;border:1px solid #e5e0fa}.pair-count-panel strong,.pair-count-panel small{display:block}.pair-count-panel strong{font-size:11px;color:#302a57}.pair-count-panel small{margin-top:2px;color:#777087;font-size:9px}.pair-progress-track{height:7px;overflow:hidden;border-radius:999px;background:#ded9f4}.pair-progress-track>b{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#6856ef,#32a7d8);transition:width .2s ease}
.pairs{display:grid;gap:14px;counter-reset:custom-match}.pair.pair-rich{counter-increment:custom-match;display:block;padding:0;overflow:hidden;border:1px solid #dfdaf2;border-radius:18px;background:#fcfbff;box-shadow:0 8px 22px rgba(55,45,126,.05)}
.pair-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 13px;border-bottom:1px solid #e8e4f5;background:linear-gradient(135deg,#f7f5ff,#fbfdff)}.pair-toolbar>div{min-width:0}.pair-toolbar strong,.pair-toolbar small{display:block}.pair-toolbar strong{font-size:12px;color:#302a57}.pair-toolbar small{margin-top:2px;color:#7b748d;font-size:9px}.pair-number span:after{content:counter(custom-match)}
.pair-remove{display:inline-flex;align-items:center;gap:6px;padding:7px 9px;border:1px solid #f1cdd5;border-radius:10px;background:#fff;color:#a43a50;font-size:9px;font-weight:850;cursor:pointer}.pair-remove:hover{background:#fff1f4;border-color:#eaaaba}
.pair-card-grid{display:grid;grid-template-columns:minmax(0,1fr) 34px minmax(0,1fr);align-items:stretch;gap:10px;padding:13px}.pair-link{align-self:center;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#ebe7ff;color:#5145c6;font-size:16px;font-weight:950}
.card-editor{min-width:0;padding:12px;border:1px solid #e2def2;border-radius:15px;background:#fff}.card-editor-heading{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:9px}.card-editor-heading span{font-size:10px;font-weight:950;letter-spacing:.06em;text-transform:uppercase;color:#5145c6}.card-editor-heading small{font-size:8px;color:#8a849c;text-align:right}
.card-editor-content{display:grid;grid-template-columns:88px minmax(0,1fr);gap:11px;align-items:start}.card-image-preview{width:88px;aspect-ratio:1;border:1px dashed #cfc8ea;border-radius:14px;background:linear-gradient(145deg,#faf9ff,#f1f7ff);overflow:hidden;display:grid;place-items:center}.card-image-preview.has-image{border-style:solid;background:#fff}.card-image-preview img{width:100%;height:100%;object-fit:contain;padding:5px}.card-image-empty{display:grid;place-items:center;gap:4px;color:#8b84a4;text-align:center}.card-image-empty b{font-size:23px}.card-image-empty small{font-size:8px;line-height:1.15}
.card-editor-fields{display:grid;gap:8px;min-width:0}.card-text-field{display:block;min-width:0}.card-text-field>span{display:block;margin:0 0 5px;color:#605a73;font-size:8px;font-weight:850}.card-text-field textarea{width:100%;min-height:66px;padding:9px 10px;border:1px solid #dcd7ec;border-radius:11px;background:#fff;color:#292446;resize:vertical;line-height:1.35}.card-text-field textarea:focus{outline:3px solid rgba(91,76,240,.14);border-color:#7668eb}
.card-upload-actions{display:flex;align-items:center;flex-wrap:wrap;gap:7px}.card-upload-button{display:inline-flex;align-items:center;gap:6px;padding:7px 9px;font-size:8px;cursor:pointer}.card-upload-actions .text-button{font-size:8px}
.pair-hint-field{display:grid;grid-template-columns:115px minmax(0,1fr);align-items:center;gap:10px;margin:0 13px 13px;padding:10px 11px;border-radius:12px;background:#fff9e8;border:1px solid #f3e2af}.pair-hint-field>span{font-size:9px;font-weight:900;color:#745b12}.pair-hint-field>span small{font-size:8px;font-weight:600;color:#958153}.pair-hint-field input{width:100%;min-width:0;padding:8px 9px;border:1px solid #e4d7ae;border-radius:9px;background:#fff;color:#3b3527}
.custom-set-actions{position:sticky;bottom:0;z-index:7;display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 -20px;padding:13px 20px;border-top:1px solid #ded9ee;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);box-shadow:0 -10px 24px rgba(50,40,110,.07);border-radius:0 0 22px 22px}.custom-set-actions>div:first-child strong,.custom-set-actions>div:first-child small{display:block}.custom-set-actions>div:first-child strong{font-size:10px;color:#302a57}.custom-set-actions>div:first-child small{margin-top:2px;font-size:8px;color:#827b91}.custom-set-actions .modal-actions{margin:0}.custom-set-actions .primary{display:inline-flex;align-items:center;gap:7px}
@media(max-width:760px){.custom-set-backdrop{padding:0}.custom-set-modal{width:100%;min-height:100vh;margin:0;border:0;border-radius:0}.custom-set-modal>.modal-head{border-radius:0}.custom-set-form{padding:12px 12px 0;gap:12px}.set-basics-card,.card-builder{padding:13px;border-radius:16px}.card-builder-head{align-items:stretch;flex-direction:column}.add-match-button{width:100%}.pair-count-panel{grid-template-columns:1fr}.pair-card-grid{grid-template-columns:1fr;padding:10px}.pair-link{transform:rotate(90deg);justify-self:center;margin:-2px 0}.card-editor-content{grid-template-columns:76px minmax(0,1fr)}.card-image-preview{width:76px}.pair-hint-field{grid-template-columns:1fr;margin:0 10px 10px}.custom-set-actions{margin:0 -12px;padding:11px 12px;align-items:stretch;flex-direction:column}.custom-set-actions .modal-actions{display:grid;grid-template-columns:1fr 1fr;width:100%}.custom-set-actions .modal-actions>*{width:100%}}
@media(max-width:430px){.card-editor-content{grid-template-columns:1fr}.card-image-preview{width:100%;max-height:150px;aspect-ratio:16/7}.card-editor-heading{align-items:flex-start;flex-direction:column}.pair-toolbar{align-items:flex-start}.pair-remove span:last-child{display:none}.pair-remove{padding:7px}.combine-topics-disclosure>summary{padding:12px}.set-section-heading>span{width:34px;height:34px;flex-basis:34px}.custom-set-actions .modal-actions{grid-template-columns:1fr}}


/* Education v2.10.2: server-authoritative Quiz Battle */
.live-mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.live-mode-choice{position:relative;min-width:0}.live-mode-choice>input{position:absolute;opacity:0;pointer-events:none}.live-mode-choice>span{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;align-items:start;height:100%;padding:14px;border:1px solid #ddd8f7;border-radius:16px;background:#fff;cursor:pointer}.live-mode-choice b{font-size:25px}.live-mode-choice strong,.live-mode-choice small{display:block}.live-mode-choice small{margin-top:4px;color:var(--muted);font-size:10px;line-height:1.4}.live-mode-choice>input:checked+span{border-color:#6554ec;background:linear-gradient(145deg,#f1efff,#f1fbff);box-shadow:0 0 0 2px rgba(101,84,236,.11)}
.live-config-form .battle-only{display:none}.live-config-form[data-live-mode="battle"] .practice-only{display:none}.live-config-form[data-live-mode="battle"] .battle-only{display:block}.battle-config-panel{padding:16px;border:1px solid #ddd7fa;border-radius:18px;background:linear-gradient(145deg,#fbfaff,#f5fbff)}.battle-room-card{border-color:#e4c56a;background:linear-gradient(150deg,#fffdf4,#fff)}
.battle-page{width:min(1220px,calc(100% - 28px));padding-top:18px}.battle-top{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:14px;padding:18px 20px}.battle-top h1{margin:3px 0 5px}.battle-top p{margin:0;color:var(--muted)}.battle-lobby-grid,.battle-question-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(300px,.8fr);gap:14px;align-items:start}.battle-lobby-card{padding:24px}.battle-rule-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:18px 0}.battle-rule-grid span{display:flex;align-items:center;gap:9px;padding:11px;border:1px solid #e4dff7;border-radius:14px;background:#fff}.battle-rule-grid b{font-size:21px}.battle-rule-grid strong{font-size:11px}.battle-start-button{width:100%;padding:14px}.battle-waiting{text-align:center;padding:14px;border-radius:14px;background:#f3f1ff;color:#5145c6;font-weight:900}.battle-countdown{min-height:55vh;display:grid;place-items:center;align-content:center;text-align:center}.battle-countdown span{font-size:14px;font-weight:950;letter-spacing:.2em;color:#6857e9}.battle-countdown strong{font-size:clamp(92px,20vw,210px);line-height:.9}.battle-countdown p{font-weight:850;color:var(--muted)}
.battle-question-card,.battle-score-card,.battle-final{padding:20px}.battle-question-status{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.battle-question-status span{font-size:11px;font-weight:900;color:var(--muted)}.battle-question-status strong{min-width:66px;padding:8px 10px;border-radius:999px;background:#ffefd7;color:#9a5d00;text-align:center}.battle-prompt{min-height:120px;display:flex;align-items:center;justify-content:center;gap:10px;padding:20px;border-radius:18px;background:linear-gradient(145deg,#5b4cf0,#7668f6);color:#fff;font-size:clamp(20px,3vw,34px);font-weight:900;text-align:center}.battle-choice-visual img{max-width:74px;max-height:74px;border-radius:12px}.battle-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}.battle-choice{position:relative;display:grid;grid-template-columns:38px minmax(0,1fr) auto;align-items:center;gap:10px;min-height:76px;padding:12px;border:1px solid #ddd8f7;border-radius:15px;background:#fff;color:var(--ink);text-align:left}.battle-choice>b{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:#eeeaff;color:#5145c6}.battle-choice:hover:not(:disabled){border-color:#7868ee;transform:translateY(-1px)}.battle-choice.selected{border-color:#6857ee;background:#f1efff;box-shadow:0 0 0 2px rgba(104,87,238,.12)}.battle-choice.correct{border-color:#43a66a;background:#ecfff3}.battle-choice.correct>b{background:#d7f8e4;color:#16763d}.battle-choice em{font-style:normal;font-weight:900;color:var(--muted)}.battle-answer-note{margin:12px 0 0;text-align:center;color:var(--muted);font-size:11px}.battle-score-card>strong{display:block;margin:8px 0;font-size:44px}.battle-score-card>small{display:block;color:var(--muted);margin-bottom:14px}
.battle-leaderboard{display:grid;gap:7px;margin-top:12px}.battle-rank{display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:10px;padding:9px 10px;border:1px solid #e5e1f5;border-radius:13px;background:#fff}.battle-rank>b{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:#f0edff;color:#5145c6}.battle-rank span,.battle-rank strong,.battle-rank small{display:block;min-width:0}.battle-rank strong{overflow-wrap:anywhere;font-size:11px}.battle-rank small{margin-top:2px;color:var(--muted);font-size:8px}.battle-rank em{font-style:normal;font-weight:950}.battle-rank.top-1{border-color:#e7c957;background:#fffbea}.battle-rank.top-2{border-color:#c9ced8;background:#fafbff}.battle-rank.top-3{border-color:#d7a16f;background:#fff7ef}.battle-leaderboard.compact .battle-rank{padding:7px 8px}.battle-final{text-align:center}.battle-trophy{font-size:76px}.battle-final h1{margin:4px 0}.battle-final-actions{display:flex;justify-content:center;gap:9px;margin:16px 0}.battle-final .battle-leaderboard{max-width:760px;margin:18px auto 0;text-align:left}
@media(max-width:850px){.battle-lobby-grid,.battle-question-layout{grid-template-columns:1fr}.battle-score-card{order:-1}.battle-choices{grid-template-columns:1fr}.battle-top{align-items:flex-start}.battle-rule-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.live-mode-grid{grid-template-columns:1fr}.battle-page{width:calc(100% - 16px);padding-top:9px}.battle-top{padding:13px;flex-direction:column;align-items:stretch}.battle-top .secondary{width:100%}.battle-lobby-card,.battle-question-card,.battle-score-card,.battle-final{padding:13px}.battle-rule-grid{grid-template-columns:1fr}.battle-prompt{min-height:100px;padding:15px;font-size:21px}.battle-choice{min-height:68px;padding:9px;grid-template-columns:34px minmax(0,1fr) auto}.battle-final-actions{flex-direction:column}.battle-final-actions>*{width:100%}}

/* Education v2.10.2: centered lesson-card rows at every width */
.lesson-library-grid-full{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:stretch;
  gap:14px;
  width:100%;
}
.lesson-library-grid-full .lesson-card{
  flex:1 1 calc((100% - 42px)/4);
  width:auto;
  min-width:240px;
  max-width:290px;
}
@media(max-width:1120px){
  .lesson-library-grid-full .lesson-card{
    flex-basis:calc((100% - 28px)/3);
    max-width:340px;
  }
}
@media(max-width:860px){
  .lesson-library-grid-full .lesson-card{
    flex-basis:calc((100% - 14px)/2);
    max-width:410px;
  }
}
@media(max-width:520px){
  .lesson-library-grid-full{
    justify-content:stretch;
  }
  .lesson-library-grid-full .lesson-card{
    flex:1 1 100%;
    width:100%;
    min-width:0;
    max-width:none;
  }
}


/* Education v2.10.2: equal authenticated lesson cards */
.lesson-library-grid-full .authenticated-lesson-card{
  flex:0 0 calc((100% - 42px)/4);
  width:calc((100% - 42px)/4);
  min-width:0;
  max-width:none;
  display:grid;
  grid-template-rows:auto 38px auto 132px auto;
  align-content:stretch;
  min-height:500px;
}
.authenticated-lesson-card .lesson-card-head{min-height:84px}
.authenticated-lesson-card>p{height:38px;min-height:38px;margin-top:10px}
.authenticated-lesson-card .lesson-meta-row{min-height:51px;margin:9px 0 7px;align-content:flex-start}
.authenticated-lesson-slot{height:132px;min-height:132px;overflow:hidden;border:1px solid #e5e0f7;border-radius:14px;background:linear-gradient(145deg,#faf9ff,#f6fbff)}
.authenticated-lesson-slot .lesson-level-chips{height:100%;max-height:none;margin:0;padding:8px;overflow:auto;align-content:start;scrollbar-width:thin}
.authenticated-lesson-slot .lesson-level-chip{min-height:49px;background:#fff}
.single-lesson-summary{height:100%;display:flex;align-items:center;justify-content:center;gap:11px;padding:15px;text-align:left}
.single-lesson-summary>span{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:13px;background:#eeeaff;font-size:21px}
.single-lesson-summary strong,.single-lesson-summary small{display:block}.single-lesson-summary strong{font-size:11px;color:#302a57}.single-lesson-summary small{margin-top:4px;color:var(--muted);font-size:9px;line-height:1.35}
.authenticated-lesson-card .lesson-actions{margin-top:0;min-height:112px;align-self:end}
.teacher-lesson-card{min-height:552px;grid-template-rows:auto 38px auto 132px 142px}
.teacher-lesson-card .teacher-lesson-actions{height:142px;min-height:142px;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:38px 38px 38px;align-content:end}
.teacher-lesson-card .teacher-lesson-actions .primary{grid-column:1/-1}
.teacher-lesson-card .teacher-lesson-actions .lesson-edit-button{grid-column:1/-1}
.teacher-lesson-card .teacher-lesson-actions button{display:inline-flex;align-items:center;justify-content:center;gap:5px;white-space:nowrap;overflow:hidden}
.student-lesson-card{min-height:474px;grid-template-rows:auto 38px auto 132px 78px}
.student-lesson-card .learner-lesson-actions{height:78px;min-height:78px;grid-template-columns:minmax(0,1fr) minmax(0,.72fr);align-content:end}
.student-lesson-card .learner-lesson-actions .primary{grid-column:auto}
@media(max-width:1120px){
  .lesson-library-grid-full .authenticated-lesson-card{flex-basis:calc((100% - 28px)/3);width:calc((100% - 28px)/3)}
}
@media(max-width:860px){
  .lesson-library-grid-full .authenticated-lesson-card{flex-basis:calc((100% - 14px)/2);width:calc((100% - 14px)/2)}
}
@media(max-width:520px){
  .lesson-library-grid-full .authenticated-lesson-card{flex:1 1 100%;width:100%;display:flex;min-height:0;max-width:none}
  .authenticated-lesson-card .lesson-card-head,.authenticated-lesson-card>p,.authenticated-lesson-card .lesson-meta-row{min-height:0;height:auto}
  .authenticated-lesson-slot{height:auto;min-height:100px}
  .authenticated-lesson-slot .lesson-level-chips{max-height:180px;height:auto}
  .teacher-lesson-card .teacher-lesson-actions,.student-lesson-card .learner-lesson-actions{height:auto;min-height:0}
}


/* Education v2.10.2: idempotent teacher approval, battle controls, reports, and XP audit */
.teacher-review-actions{align-items:center;flex-wrap:wrap}.approved-control,.rejected-control,.student-control{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:38px;padding:9px 13px;border-radius:12px;font-weight:900}.approved-control{border:1px solid #a8dfc0;background:#eaf9f0;color:#177544}.rejected-control{border:1px solid #f2bbc5;background:#fff0f3;color:#a52d49}.student-control{border:1px solid #ddd8eb;background:#f6f4fb;color:#6e687e}.battle-top-actions,.battle-teacher-controls{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}.battle-remove-player{padding:6px 8px;border:1px solid #f0c2ca;border-radius:9px;background:#fff4f6;color:#a52d49;font-size:9px;font-weight:900}.battle-preview{margin-top:14px;padding-top:12px;border-top:1px solid #ebe7f8}.battle-preview summary{cursor:pointer;font-weight:900;color:#5145c6}.battle-preview div{display:grid;gap:3px;padding:9px 0;border-bottom:1px solid #f0edf8}.battle-preview small{color:var(--muted)}.battle-question-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px;text-align:left}.battle-question-stats article{display:grid;gap:4px;padding:12px;border:1px solid #e1dcf4;border-radius:14px;background:#fbfaff}.battle-question-stats article span{font-size:9px;font-weight:950;color:#6856ef;text-transform:uppercase}.battle-question-stats article strong{font-size:12px}.battle-question-stats article small,.battle-question-stats article em{font-size:10px;color:var(--muted);font-style:normal}.battle-report-detail td{background:#faf9ff}.battle-report-detail td>span{display:inline-flex;flex-direction:column;gap:2px;min-width:210px;margin:4px 10px 4px 0;padding:8px 10px;border:1px solid #e4def7;border-radius:10px;background:#fff}.xp-audit-modal{max-width:1050px}.xp-audit-modal .table td{vertical-align:top}
@media(max-width:760px){.battle-top-actions,.battle-teacher-controls{width:100%;justify-content:stretch}.battle-top-actions>*{flex:1}.battle-question-stats{grid-template-columns:1fr}.teacher-review-actions>*{flex:1 1 145px}}


/* Education v2.10.8: class creation repair, centered overview actions, and expanded lessons */
.dashboard-columns{align-items:start}
.dashboard-overview-panel{padding:18px;min-width:0}
.dashboard-overview-panel .dashboard-section-head{margin-bottom:12px}
.dashboard-overview-panel>.grid,.dashboard-overview-panel>.dashboard-stack{align-content:start}
.assignment-library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:stretch}
.assignment-card{display:flex;flex-direction:column;min-width:0;height:100%}
.assignment-card>p{flex:1 1 auto}
.assignment-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.assignment-status{display:inline-flex;align-items:center;justify-content:center;padding:5px 8px;border-radius:999px;font-size:8px;font-weight:950;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap;background:#eeeaf8;color:#5d5675}
.assignment-status.status-published,.assignment-status.status-submitted{background:#e5f8ef;color:#176744}
.assignment-status.status-draft,.assignment-status.status-upcoming{background:#fff5d7;color:#785b00}
.assignment-status.status-closed,.assignment-status.status-archived{background:#eeeef2;color:#666674}
.assignment-status.status-missing{background:#ffe8ed;color:#a12b48}
.assignment-status.status-in_progress,.assignment-status.status-developing{background:#e6f3ff;color:#175c8c}
.assignment-actions{margin-top:auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
.assignment-actions>*{min-width:0}
.assignment-late-toggle{align-self:end;min-height:48px}
.coverage-metrics{grid-template-columns:repeat(5,minmax(0,1fr));margin-bottom:18px}
.coverage-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,.7fr);gap:16px;align-items:start}
.coverage-layout>.panel{padding:17px}
.coverage-entry-list{display:grid;gap:10px}
.coverage-entry{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px 12px;padding:12px;border:1px solid #e1dcf4;border-radius:15px;background:#fff}
.coverage-entry>div:first-child strong,.coverage-entry>div:first-child small{display:block;overflow-wrap:anywhere}
.coverage-entry>div:first-child small{margin-top:3px;color:var(--muted);font-size:9px}
.coverage-stage{align-self:start;padding:5px 8px;border-radius:999px;background:#eeeaff;color:#5145c6;font-size:8px;font-weight:900}
.coverage-progress{grid-column:1/-1;height:7px;border-radius:999px;background:#ece9f5;overflow:hidden}
.coverage-progress b{display:block;height:100%;background:linear-gradient(90deg,#5b4cf0,#16a77a);border-radius:inherit}
.coverage-entry>small{grid-column:1/-1;color:var(--muted)}
.coverage-entry details{grid-column:1/-1}
.coverage-entry summary{cursor:pointer;color:#5145c6;font-size:10px;font-weight:850}
.coverage-next{display:grid;gap:8px;position:sticky;top:92px}
.coverage-next h3{margin:0 0 5px}
.coverage-next-item{display:block;width:100%;padding:10px 11px;text-align:left;border:1px solid #dfdaf4;border-radius:12px;background:#faf9ff;color:var(--ink)}
.coverage-next-item strong,.coverage-next-item small{display:block;overflow-wrap:anywhere}
.coverage-next-item small{margin-top:3px;color:var(--muted);font-size:9px}
.learner-override-controls{display:grid;grid-template-columns:minmax(150px,1fr) minmax(110px,.7fr) auto auto;gap:6px;align-items:center;min-width:460px}
.learner-override-controls input,.learner-override-controls select{min-width:0;padding:8px;border:1px solid #ddd8eb;border-radius:10px;background:#fff}
.content-audit-modal{width:min(1040px,calc(100vw - 28px))}
.audit-issue-list{display:grid;gap:9px;margin-top:15px;max-height:520px;overflow:auto}
.audit-issue{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:11px;align-items:start;padding:12px;border:1px solid #e2dcef;border-radius:14px;background:#fff}
.audit-issue>span{font-size:22px}.audit-issue strong,.audit-issue small,.audit-issue p,.audit-issue em{display:block}.audit-issue small{color:var(--muted);font-size:9px}.audit-issue p{margin:5px 0;font-size:11px}.audit-issue em{color:#6b647c;font-size:9px}.severity-critical{border-color:#f0b7c3;background:#fff8fa}
@media(max-width:1100px){.assignment-library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.coverage-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.coverage-layout{grid-template-columns:1fr}.coverage-next{position:static}.learner-override-controls{min-width:390px;grid-template-columns:1fr 1fr}.learner-override-controls button{width:100%}}
@media(max-width:680px){.assignment-library-grid{grid-template-columns:1fr}.coverage-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.dashboard-overview-panel{padding:13px}.assignment-actions{grid-template-columns:1fr}.audit-issue{grid-template-columns:auto minmax(0,1fr)}.audit-issue>button{grid-column:1/-1;width:100%}.learner-override-controls{min-width:260px;grid-template-columns:1fr}}


/* Education v2.10.8: centered Overview action bentos */
.dashboard-centered-actions{
  width:min(100%,620px);
  margin-inline:auto;
  grid-template-columns:repeat(2,minmax(210px,1fr));
  justify-content:center;
  align-content:center;
}
.dashboard-centered-actions .quick-action{
  width:100%;
  min-height:96px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  text-align:center;
  padding:15px 14px;
}
.dashboard-centered-actions .quick-action>span{font-size:27px;line-height:1;margin:0 0 3px}
.dashboard-centered-actions .quick-action strong{font-size:13px;line-height:1.3}
.dashboard-centered-actions .quick-action small{margin:0;max-width:22ch;line-height:1.35}
.dashboard-centered-actions .dashboard-core-action{justify-self:center}
.dashboard-overview-panel>.empty{justify-items:center;text-align:center}
@media(max-width:760px){
  .dashboard-centered-actions{width:min(100%,360px);grid-template-columns:1fr}
  .dashboard-centered-actions .quick-action{min-height:84px}
}


/* Education v2.10.8: full-width assignment/live options, viewport-safe modal, and readable text */
.selection-modal{
  width:min(1160px,calc(100vw - 24px))!important;
  height:min(940px,calc(100dvh - 24px));
  max-height:calc(100dvh - 24px)!important;
  padding:0!important;
  overflow:hidden!important;
  display:flex;
  flex-direction:column;
}
.selection-modal>.modal-head{
  flex:0 0 auto;
  align-items:center;
  padding:18px 22px 12px;
  border-bottom:1px solid rgba(91,76,240,.10);
  background:rgba(255,255,255,.98);
}
.selection-modal>.modal-head h2{margin:4px 0 0;font-size:clamp(22px,2.4vw,30px)}
.selection-modal>.lesson-progression{
  flex:0 0 auto;
  max-height:154px;
  margin:12px 22px 0;
  overflow:auto;
  scrollbar-gutter:stable;
}
.selection-modal>form{
  flex:1 1 auto;
  min-height:0;
  display:flex;
  flex-direction:column;
}
.selection-modal>form>.live-room-type{
  flex:0 0 auto;
  padding:14px 22px 0;
}
.selection-modal>form>.form-grid{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  overscroll-behavior:contain;
  scrollbar-gutter:stable;
  scroll-padding-bottom:24px;
  padding:14px 22px 22px;
}
.selection-modal>form>p.notice{
  flex:0 0 auto;
  margin:0;
  border-radius:0;
  padding:10px 22px;
}
.selection-modal>form>.modal-actions{
  flex:0 0 auto;
  margin:0;
  padding:14px 22px;
  border-top:1px solid rgba(91,76,240,.12);
  background:rgba(255,255,255,.98);
  box-shadow:0 -12px 26px rgba(49,39,115,.08);
}
.form-grid>.practice-only.full,
.form-grid>.battle-only.full{
  grid-column:1/-1;
  min-width:0;
}
.practice-only{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  align-items:start;
}
.practice-only>.choice-fieldset.full{grid-column:1/-1}
.practice-only>.field,.practice-only>.support-options{min-width:0}
.selection-modal .field span,
.selection-modal .choice-fieldset legend{
  font-size:14px;
  line-height:1.35;
}
.selection-modal .field>small,
.selection-modal .field-note,
.selection-modal .notice,
.selection-modal .check,
.selection-modal .set-section-heading small,
.selection-modal .live-mode-choice small{
  font-size:13px;
  line-height:1.5;
}
.selection-modal input,
.selection-modal select,
.selection-modal textarea{
  min-height:46px;
  font-size:15px;
  line-height:1.35;
}
.selection-modal textarea{min-height:96px}
.selection-modal .live-mode-choice strong{font-size:16px;line-height:1.3}
.selection-modal .live-mode-choice small{margin-top:6px}
.selection-modal .mode-choice-body{min-height:150px;padding:14px}
.selection-modal .mode-choice-title{font-size:16px!important;line-height:1.28!important}
.selection-modal .mode-choice-description{font-size:13px!important;line-height:1.5!important}
.selection-modal .mode-choice-selected{font-size:11px!important;line-height:1.3!important}
.selection-modal .session-choice-body{min-height:118px}
.selection-modal .session-choice strong{font-size:15px;line-height:1.35}
.selection-modal .session-choice small{font-size:13px;line-height:1.5}
.selection-modal .session-choice em{font-size:11px}
.selection-modal .pair-choice-label{font-size:14px!important;line-height:1.3}
.selection-modal .pair-choice-note{font-size:12px!important;line-height:1.4}
.selection-modal .pair-choice-selected{font-size:10px!important}
.selection-modal .support-options{font-size:13px}
.selection-modal .image-recommendation{
  padding:10px 12px;
  border:1px solid #ddd8f7;
  border-radius:12px;
  background:#f7f5ff;
  color:#5145c6;
  font-weight:750;
}
@media(max-width:700px){
  .selection-modal{
    width:calc(100vw - 8px)!important;
    height:calc(100dvh - 8px);
    max-height:calc(100dvh - 8px)!important;
    border-radius:18px;
  }
  .selection-modal>.modal-head{padding:13px 14px 10px}
  .selection-modal>.lesson-progression{max-height:120px;margin:9px 12px 0}
  .selection-modal>form>.live-room-type{padding:10px 12px 0}
  .selection-modal>form>.form-grid{padding:11px 12px 16px}
  .selection-modal>form>.modal-actions{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    padding:10px 12px;
  }
  .selection-modal>form>.modal-actions>*{width:100%;min-width:0}
  .practice-only{grid-template-columns:1fr;gap:10px}
  .practice-only>.choice-fieldset.full{grid-column:auto}
  .selection-modal .field span,
  .selection-modal .choice-fieldset legend{font-size:13.5px}
  .selection-modal .field>small,
  .selection-modal .field-note,
  .selection-modal .notice,
  .selection-modal .check,
  .selection-modal .live-mode-choice small{font-size:12.5px}
  .selection-modal .mode-choice-title{font-size:15px!important}
  .selection-modal .mode-choice-description{font-size:12.5px!important}
  .selection-modal .mode-choice-selected{font-size:10px!important}
  .selection-modal .session-choice strong{font-size:14px}
  .selection-modal .session-choice small{font-size:12.5px}
  .selection-modal .pair-choice-note{font-size:11.5px!important}
}
@media(max-width:430px){
  .selection-modal>form>.modal-actions{grid-template-columns:1fr}
}

/* Education v2.10.8: production-stable assignments, previews, bulk actions, and clearer battle status */
.assignment-card{position:relative}
.assignment-card.selected-for-bulk{border-color:#6755ef;box-shadow:0 0 0 3px rgba(103,85,239,.12),0 16px 34px rgba(64,53,143,.10)}
.assignment-select-control{position:absolute;top:12px;right:12px;z-index:2;width:30px;height:30px;display:grid;place-items:center;border:1px solid #d8d2f6;border-radius:10px;background:#fff;cursor:pointer;box-shadow:0 6px 16px rgba(64,53,143,.08)}
.assignment-select-control input{position:absolute;opacity:0;pointer-events:none}
.assignment-select-control span{display:grid;place-items:center;width:20px;height:20px;border-radius:7px;background:#f2efff;color:transparent;font-size:12px;font-weight:950}
.assignment-select-control:has(input:checked){border-color:#6755ef;background:#6755ef}
.assignment-select-control:has(input:checked) span{background:#fff;color:#6755ef}
.assignment-card-top{padding-right:38px}
.assignment-completion{display:grid;gap:6px;margin-top:auto;padding-top:10px}
.assignment-completion>span{display:flex;align-items:flex-end;justify-content:space-between;gap:10px}
.assignment-completion strong,.assignment-completion small{display:block}
.assignment-completion strong{font-size:11px;color:#3c356a}
.assignment-completion small{font-size:9px;color:#7d7692;text-align:right}
.assignment-completion>b{height:7px;overflow:hidden;border-radius:999px;background:#ece9f8}
.assignment-completion>b>i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#6755ef,#4f9bf5)}
.assignment-actions{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch}
.assignment-actions>button{min-width:0;min-height:38px;padding:8px 9px;font-size:10px;line-height:1.2}
.assignment-bulk-toolbar{position:sticky;top:72px;z-index:8;display:grid;grid-template-columns:auto auto minmax(0,1fr);align-items:center;gap:12px;margin:0 0 16px;padding:12px 14px;border:1px solid #ddd7f7;border-radius:17px;background:rgba(255,255,255,.94);box-shadow:0 12px 28px rgba(61,49,139,.09);backdrop-filter:blur(14px)}
.assignment-bulk-toolbar>label{display:flex;align-items:center;gap:8px;font-size:11px;font-weight:850;color:#4c456a}
.assignment-bulk-toolbar>label input{width:18px;height:18px;accent-color:#6755ef}
.assignment-bulk-toolbar>strong{padding:6px 9px;border-radius:999px;background:#efecff;color:#5145c6;font-size:10px;white-space:nowrap}
.assignment-bulk-toolbar>.actions{justify-content:flex-end;margin:0}
.assignment-bulk-toolbar button{min-height:36px}
.assignment-preview-modal{width:min(900px,calc(100vw - 24px));max-height:calc(100dvh - 24px);overflow:auto}
.assignment-preview-banner{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:8px 12px;margin:0 0 14px;padding:13px 15px;border:1px solid #ddd8f7;border-radius:16px;background:linear-gradient(135deg,#f6f3ff,#f4faff)}
.assignment-preview-banner>strong{font-size:13px}.assignment-preview-banner>small{grid-column:2;color:#777087;font-size:11px;line-height:1.45}
.assignment-preview-student{padding:20px;background:#fff}
.assignment-preview-student h2{margin:5px 0 8px}.assignment-preview-student>p{color:#716a83;line-height:1.55}
.assignment-preview-facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;margin:15px 0}
.assignment-preview-facts>span{display:grid;grid-template-columns:auto minmax(0,1fr);gap:2px 8px;padding:11px;border:1px solid #e4dff7;border-radius:13px;background:#faf9ff}
.assignment-preview-facts b{grid-row:1/3;font-size:20px}.assignment-preview-facts strong,.assignment-preview-facts small{display:block;min-width:0}.assignment-preview-facts strong{font-size:10px}.assignment-preview-facts small{font-size:9px;color:#7b748d;overflow-wrap:anywhere}
.form-submit-error{flex:0 0 auto;margin:0 22px 8px!important;padding:10px 12px;border:1px solid #f2b8c5;border-radius:12px;background:#fff0f3;color:#9f2947;font-size:13px;line-height:1.45}
button[aria-busy="true"]{cursor:wait;opacity:.68}
.battle-rank small{display:flex!important;align-items:center;gap:6px}
.battle-connection{width:8px;height:8px;flex:0 0 auto;border-radius:50%;background:#a8a3b6;box-shadow:0 0 0 3px rgba(168,163,182,.13)}
.battle-connection.connected{background:#2ab873;box-shadow:0 0 0 3px rgba(42,184,115,.14)}
.battle-connection.reconnecting{background:#f0a72f;box-shadow:0 0 0 3px rgba(240,167,47,.16)}
.battle-connection.disconnected{background:#d4566d;box-shadow:0 0 0 3px rgba(212,86,109,.15)}
@media(max-width:900px){
  .assignment-bulk-toolbar{grid-template-columns:1fr auto;top:64px}
  .assignment-bulk-toolbar>.actions{grid-column:1/-1;justify-content:flex-start}
  .assignment-preview-facts{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:620px){
  .assignment-actions{grid-template-columns:repeat(2,minmax(0,1fr))}
  .assignment-bulk-toolbar{position:relative;top:auto;grid-template-columns:1fr;margin-top:-4px}
  .assignment-bulk-toolbar>strong{justify-self:start}
  .assignment-bulk-toolbar>.actions{grid-column:auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:100%}
  .assignment-bulk-toolbar>.actions button{width:100%;min-width:0}
  .assignment-preview-facts{grid-template-columns:1fr}
  .assignment-preview-banner{grid-template-columns:1fr}.assignment-preview-banner>small{grid-column:auto}
  .form-submit-error{margin:0 12px 8px!important;font-size:12.5px}
}
@media(max-width:420px){.assignment-actions,.assignment-bulk-toolbar>.actions{grid-template-columns:1fr}}


/* Education v2.10.8: balanced mobile library actions and reachable Practice controls */
@media(max-width:700px){
  .lesson-library-grid{justify-content:center!important;justify-items:stretch!important;width:100%!important}
  .lesson-card{width:100%!important;max-width:560px!important;margin-inline:auto!important}
  .lesson-actions{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:9px!important;width:100%!important;margin-top:auto!important}
  .lesson-actions>*{width:100%!important;min-width:0!important;justify-content:center!important;text-align:center!important;margin:0!important}
  .lesson-actions .primary,.lesson-actions .lesson-edit-button{grid-column:1/-1!important}
  .learner-lesson-actions{grid-template-columns:1fr!important}
  .learner-lesson-actions>*{grid-column:1!important}
  .play-options-modal{display:flex!important;flex-direction:column!important;width:calc(100vw - 12px)!important;max-height:calc(100dvh - 12px)!important;overflow:hidden!important;padding:0!important}
  .play-options-modal>.modal-head{flex:0 0 auto;padding:14px 14px 10px!important}
  .play-options-form{display:flex!important;flex-direction:column!important;min-height:0!important;overflow-y:auto!important;overscroll-behavior:contain;padding:0 14px 92px!important;-webkit-overflow-scrolling:touch}
  .play-options-form>.choice-fieldset{width:100%!important;min-width:0!important}
  .play-options-form>.modal-actions{position:sticky!important;bottom:0!important;z-index:8!important;display:grid!important;grid-template-columns:1fr 1fr!important;gap:9px!important;margin:14px -14px -92px!important;padding:12px 14px calc(12px + env(safe-area-inset-bottom))!important;background:rgba(255,255,255,.98)!important;border-top:1px solid #e5e0f2!important;box-shadow:0 -10px 24px rgba(50,40,110,.10)!important}
  .play-options-form>.modal-actions>*{width:100%!important;min-height:44px!important}
}
@media(max-width:430px){.play-options-form>.modal-actions{grid-template-columns:1fr!important}}


/* Education v2.10.8: mobile assignment/live containment and vertical-only scrolling */
html,body{max-width:100%;overflow-x:hidden}
body:has(.modal-bg){overflow:hidden;overscroll-behavior:none}
.modal-bg{overflow:hidden!important;overscroll-behavior:none;max-width:100vw;touch-action:none}
.selection-modal{
  width:min(1160px,calc(100vw - 16px))!important;
  max-width:calc(100vw - 16px)!important;
  min-width:0!important;
  overflow:hidden!important;
  overscroll-behavior:none;
  contain:inline-size;
  touch-action:pan-y;
}
.selection-modal,
.selection-modal *,
.selection-modal *::before,
.selection-modal *::after{box-sizing:border-box}
.selection-modal>form,
.selection-modal>form>.form-grid,
.selection-modal>form>.live-room-type,
.selection-modal .practice-only,
.selection-modal .battle-only,
.selection-modal .battle-config-panel,
.selection-modal .choice-fieldset,
.selection-modal .field,
.selection-modal .support-options,
.selection-modal .image-choice-grid,
.selection-modal .activity-choice-grid,
.selection-modal .session-choice-grid,
.selection-modal .pair-choice-grid,
.selection-modal .form-grid{
  width:100%!important;
  max-width:100%!important;
  min-width:0!important;
  margin-left:0!important;
  margin-right:0!important;
}
.selection-modal>form>.form-grid{
  overflow-x:hidden!important;
  overflow-y:auto!important;
  overscroll-behavior-x:none!important;
  overscroll-behavior-y:contain!important;
  touch-action:pan-y;
}
.selection-modal .form-grid,
.selection-modal .practice-only,
.selection-modal .image-choice-grid,
.selection-modal .activity-choice-grid,
.selection-modal .session-choice-grid,
.selection-modal .pair-choice-grid{
  grid-template-columns:minmax(0,1fr)!important;
}
.selection-modal input,
.selection-modal select,
.selection-modal textarea,
.selection-modal button,
.selection-modal label,
.selection-modal fieldset,
.selection-modal section{
  max-width:100%!important;
  min-width:0!important;
}
.selection-modal select,
.selection-modal input,
.selection-modal textarea{width:100%!important}
.selection-modal .choice-radio,
.selection-modal .mode-choice,
.selection-modal .session-choice,
.selection-modal .pair-choice,
.selection-modal .live-mode-choice,
.selection-modal .choice-radio>span,
.selection-modal .mode-choice-body,
.selection-modal .session-choice-body{
  width:100%!important;
  max-width:100%!important;
  min-width:0!important;
  overflow-wrap:anywhere;
}
.selection-modal .modal-actions{width:100%;max-width:100%;overflow:hidden}
@media(min-width:701px){
  .selection-modal .form-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}
  .selection-modal .practice-only{grid-template-columns:repeat(2,minmax(0,1fr))!important}
  .selection-modal .practice-only>.choice-fieldset.full{grid-column:1/-1}
  .selection-modal .battle-config-panel>.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}
}
@media(max-width:700px){
  .modal-bg{padding:4px!important;place-items:stretch center}
  .selection-modal{
    width:calc(100vw - 8px)!important;
    max-width:calc(100vw - 8px)!important;
    height:calc(100dvh - 8px)!important;
    max-height:calc(100dvh - 8px)!important;
    margin:0!important;
  }
  .selection-modal>.lesson-progression,
  .selection-modal>form>.live-room-type,
  .selection-modal>form>.form-grid,
  .selection-modal>form>.modal-actions{max-width:100%!important}
  .selection-modal .support-options{display:grid!important;grid-template-columns:1fr!important}
  .selection-modal .check{width:100%;overflow-wrap:anywhere}
}


/* Education v2.11.0: stable selection state and honest maximum question counts */
.selection-modal .choice-radio{transform:none!important;contain:layout paint;}
.selection-modal .choice-radio>input:checked+.mode-choice-body,
.selection-modal .choice-radio>input:checked+.pair-choice-body{
  transform:none!important;
  border-color:#5b4cf0!important;
  background:#f2f0ff!important;
  box-shadow:inset 0 0 0 2px rgba(91,76,240,.12)!important;
}
.selection-modal .mode-choice-selected,
.selection-modal .pair-choice-selected{display:none!important;}
.selection-modal .choice-radio>input:checked+.mode-choice-body::after,
.selection-modal .choice-radio>input:checked+.pair-choice-body::after{
  content:"✓"!important;display:grid!important;position:absolute!important;right:10px!important;top:10px!important;
  width:24px!important;height:24px!important;place-items:center;border-radius:999px;background:#5b4cf0;color:#fff;
  font-size:13px!important;font-weight:950;line-height:1;box-shadow:none!important;
}
.selection-modal .choice-radio.choice-unavailable{opacity:.58;cursor:not-allowed!important;}
.selection-modal .choice-radio.choice-unavailable .pair-choice-body{background:#f5f4f7!important;border-style:dashed!important;box-shadow:none!important;}
.selection-modal .choice-radio.choice-unavailable .pair-choice-note{color:#7f788e!important;}
.selection-modal .pair-choice-body{padding-bottom:12px!important;}
@media(hover:hover) and (pointer:fine){
 .selection-modal .choice-radio:hover .mode-choice-body,
 .selection-modal .choice-radio:hover .pair-choice-body{transform:none!important;}
}


/* Education v2.11.0: rebuilt mobile Assignment and Live Room layout */
@media(max-width:760px){
  .modal-bg:has(.selection-modal){
    padding:0!important;
    overflow:hidden!important;
    overscroll-behavior:none!important;
    align-items:stretch!important;
  }
  .selection-modal{
    width:100vw!important;
    max-width:100vw!important;
    height:100dvh!important;
    max-height:100dvh!important;
    margin:0!important;
    border:0!important;
    border-radius:0!important;
    overflow:hidden!important;
    contain:layout paint!important;
  }
  .selection-modal>.modal-head{
    width:100%!important;
    min-width:0!important;
    padding:12px 14px!important;
  }
  .selection-modal>.lesson-progression{
    width:auto!important;
    max-width:calc(100% - 24px)!important;
    margin:8px 12px 0!important;
    overflow-x:hidden!important;
    overflow-y:auto!important;
  }
  .selection-modal>form{
    width:100%!important;
    min-width:0!important;
    overflow:hidden!important;
  }
  .selection-modal>form>.live-room-type{
    width:100%!important;
    min-width:0!important;
    padding:10px 12px 0!important;
  }
  .selection-modal>form>.form-grid{
    display:flex!important;
    flex-direction:column!important;
    gap:12px!important;
    width:100%!important;
    max-width:100%!important;
    min-width:0!important;
    padding:12px 12px 108px!important;
    overflow-x:hidden!important;
    overflow-y:auto!important;
    overscroll-behavior-x:none!important;
    overscroll-behavior-y:contain!important;
    -webkit-overflow-scrolling:touch!important;
  }
  .selection-modal>form>.form-grid>*{
    flex:0 0 auto!important;
    width:100%!important;
    max-width:100%!important;
    min-width:0!important;
    margin:0!important;
  }
  .selection-modal .practice-only,
  .selection-modal .battle-only,
  .selection-modal .battle-config-panel,
  .selection-modal .battle-config-panel>.form-grid,
  .selection-modal .image-choice-grid,
  .selection-modal .activity-choice-grid,
  .selection-modal .session-choice-grid,
  .selection-modal .pair-choice-grid,
  .selection-modal .live-mode-grid,
  .selection-modal .support-options{
    display:flex!important;
    flex-direction:column!important;
    gap:9px!important;
    width:100%!important;
    max-width:100%!important;
    min-width:0!important;
    overflow:visible!important;
  }
  .selection-modal .choice-fieldset,
  .selection-modal .field,
  .selection-modal .check,
  .selection-modal .choice-radio,
  .selection-modal .mode-choice,
  .selection-modal .session-choice,
  .selection-modal .pair-choice,
  .selection-modal .live-mode-choice{
    display:block!important;
    width:100%!important;
    max-width:100%!important;
    min-width:0!important;
    margin:0!important;
    transform:none!important;
  }
  .selection-modal .mode-choice-body,
  .selection-modal .image-choice-body,
  .selection-modal .session-choice-body,
  .selection-modal .pair-choice-body,
  .selection-modal .live-mode-choice>span{
    width:100%!important;
    max-width:100%!important;
    min-width:0!important;
    height:auto!important;
    min-height:0!important;
    overflow:hidden!important;
    transform:none!important;
  }
  .selection-modal .source-picker-field select,
  .selection-modal select,
  .selection-modal input,
  .selection-modal textarea{
    display:block!important;
    width:100%!important;
    max-width:100%!important;
    min-width:0!important;
    box-sizing:border-box!important;
  }
  .selection-modal .source-picker-field select{
    text-overflow:ellipsis!important;
    white-space:nowrap!important;
    overflow:hidden!important;
  }
  .selection-modal .mode-choice-body{
    display:grid!important;
    grid-template-columns:34px minmax(0,1fr)!important;
    grid-template-rows:auto auto!important;
    gap:4px 10px!important;
    padding:12px!important;
  }
  .selection-modal .mode-choice-icon,
  .selection-modal .mode-choice-body>b{
    grid-column:1!important;
    grid-row:1/3!important;
    margin:0!important;
  }
  .selection-modal .mode-choice-title,
  .selection-modal .mode-choice-description{
    grid-column:2!important;
    min-width:0!important;
    overflow-wrap:anywhere!important;
  }
  .selection-modal .session-choice-body{
    display:grid!important;
    grid-template-columns:32px minmax(0,1fr)!important;
    gap:8px!important;
    padding:12px!important;
  }
  .selection-modal .session-choice-body>b{grid-column:1!important;grid-row:1/3!important}
  .selection-modal .session-choice-body>span{grid-column:2!important;min-width:0!important}
  .selection-modal .choice-radio>input:checked+.mode-choice-body::after,
  .selection-modal .choice-radio>input:checked+.pair-choice-body::after{
    right:8px!important;
    top:8px!important;
  }
  .selection-modal>form>.modal-actions{
    position:absolute!important;
    left:0!important;
    right:0!important;
    bottom:0!important;
    z-index:30!important;
    display:grid!important;
    grid-template-columns:1fr 1fr!important;
    gap:8px!important;
    width:100%!important;
    max-width:100%!important;
    margin:0!important;
    padding:10px 12px calc(10px + env(safe-area-inset-bottom))!important;
    background:rgba(255,255,255,.98)!important;
    border-top:1px solid #e4dff3!important;
    box-shadow:0 -10px 28px rgba(45,35,102,.12)!important;
    overflow:hidden!important;
  }
  .selection-modal>form>.modal-actions>*{
    width:100%!important;
    min-width:0!important;
    min-height:46px!important;
    margin:0!important;
  }
}
@media(max-width:390px){
  .selection-modal>form>.modal-actions{grid-template-columns:1fr!important}
  .selection-modal>form>.form-grid{padding-bottom:164px!important}
}


/* Education v2.11.0: full-height mobile setup flow and compact A-D battle choices */
@media(max-width:760px){
  .selection-modal>form{display:flex!important;flex-direction:column!important;height:calc(100dvh - 58px)!important;min-height:0!important}
  .selection-modal>form>.live-room-type{flex:0 0 auto!important}
  .selection-modal>form>.form-grid{flex:1 1 auto!important;min-height:0!important;height:auto!important;max-height:none!important;padding:12px 12px 124px!important;overflow-y:auto!important;overflow-x:hidden!important;overscroll-behavior:contain!important}
  .selection-modal>.lesson-progression{max-height:110px!important;flex:0 0 auto!important}
  .selection-modal .choice-fieldset{padding:12px!important}
  .selection-modal .image-choice-grid,.selection-modal .activity-choice-grid,.selection-modal .pair-choice-grid,.selection-modal .session-choice-grid{gap:8px!important}
  .selection-modal .image-choice-body,.selection-modal .mode-choice-body,.selection-modal .pair-choice-body,.selection-modal .session-choice-body{padding:11px!important}
  .selection-modal .mode-choice-description,.selection-modal .pair-choice-note,.selection-modal .session-choice-body small,.selection-modal .field-note{font-size:12px!important;line-height:1.42!important}
  .selection-modal .mode-choice-title,.selection-modal .pair-choice-label,.selection-modal .session-choice-body strong{font-size:13px!important}
  .battle-question-layout{display:block!important}
  .battle-score-card{margin-bottom:10px!important}
  .battle-choices{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:8px!important;max-height:none!important;overflow:visible!important}
  .battle-choice{grid-template-columns:32px minmax(0,1fr)!important;min-height:72px!important;padding:9px!important;gap:8px!important;overflow:hidden!important}
  .battle-choice>b{width:30px!important;height:30px!important}
  .battle-choice em{display:none!important}
  .battle-choice .battle-choice-visual{grid-column:2!important;min-width:0!important}
}
@media(max-width:390px){
  .battle-choices{grid-template-columns:1fr!important}
  .selection-modal>form>.form-grid{padding-bottom:182px!important}
}


/* Education v2.11.2 regression recovery: centered libraries and stable one-scroll setup forms */
.lesson-library-grid,
.lesson-library-grid-compact,
.lesson-library-grid-full{
  display:flex!important;
  flex-wrap:wrap!important;
  justify-content:center!important;
  align-items:stretch!important;
  gap:14px!important;
  width:100%!important;
  max-width:none!important;
  margin-inline:auto!important;
}
.lesson-library-grid>.lesson-card,
.lesson-library-grid-compact>.lesson-card,
.lesson-library-grid-full>.lesson-card{
  flex:0 0 calc((100% - 42px)/4)!important;
  width:calc((100% - 42px)/4)!important;
  min-width:0!important;
  max-width:none!important;
  margin:0!important;
}
.lesson-card .lesson-level-chips,
.authenticated-lesson-slot .lesson-level-chips{
  height:auto!important;
  max-height:none!important;
  overflow:visible!important;
}
.authenticated-lesson-slot{min-height:184px!important;height:184px!important;overflow:hidden!important}
.lesson-library-grid-full .authenticated-lesson-card{grid-template-rows:auto 38px auto 184px auto!important}
.teacher-lesson-card{min-height:604px!important;grid-template-rows:auto 38px auto 184px 142px!important}
.student-lesson-card{min-height:526px!important;grid-template-rows:auto 38px auto 184px 78px!important}
@media(max-width:1120px){
  .lesson-library-grid>.lesson-card,.lesson-library-grid-compact>.lesson-card,.lesson-library-grid-full>.lesson-card{
    flex-basis:calc((100% - 28px)/3)!important;width:calc((100% - 28px)/3)!important;
  }
}
@media(max-width:860px){
  .lesson-library-grid>.lesson-card,.lesson-library-grid-compact>.lesson-card,.lesson-library-grid-full>.lesson-card{
    flex-basis:calc((100% - 14px)/2)!important;width:calc((100% - 14px)/2)!important;
  }
}
@media(max-width:520px){
  .lesson-library-grid,.lesson-library-grid-compact,.lesson-library-grid-full{justify-content:stretch!important}
  .lesson-library-grid>.lesson-card,.lesson-library-grid-compact>.lesson-card,.lesson-library-grid-full>.lesson-card{
    flex:1 1 100%!important;width:100%!important;max-width:none!important;
  }
  .authenticated-lesson-slot{height:auto!important;min-height:0!important;overflow:visible!important}
  .lesson-library-grid-full .authenticated-lesson-card,.teacher-lesson-card,.student-lesson-card{display:flex!important;min-height:0!important}
}

.modal-bg:has(.selection-modal){padding:16px!important;overflow:hidden!important;place-items:center!important}
.selection-modal{
  display:flex!important;flex-direction:column!important;
  width:min(1160px,calc(100vw - 32px))!important;max-width:1160px!important;
  height:min(900px,calc(100dvh - 32px))!important;max-height:calc(100dvh - 32px)!important;
  padding:0!important;overflow:hidden!important;border-radius:24px!important;contain:none!important;
}
.selection-modal>.modal-head{flex:0 0 auto!important;padding:18px 22px 14px!important;border-bottom:1px solid #e9e5f5!important;background:rgba(255,255,255,.99)!important}
.selection-modal>.lesson-progression{flex:0 0 auto!important;max-height:112px!important;margin:10px 22px 0!important;overflow:auto!important}
.selection-modal>form{display:flex!important;flex-direction:column!important;flex:1 1 auto!important;min-height:0!important;width:100%!important;overflow:hidden!important}
.selection-modal>form>.form-grid{
  display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;align-content:start!important;
  flex:1 1 auto!important;min-height:0!important;width:100%!important;gap:14px!important;padding:16px 22px 26px!important;
  overflow-y:auto!important;overflow-x:hidden!important;overscroll-behavior:contain!important;scrollbar-gutter:stable!important;
}
.selection-modal .form-grid>.full,.selection-modal .form-grid>.practice-only.full,.selection-modal .form-grid>.battle-only.full,.selection-modal .form-grid>.live-room-type.full{grid-column:1/-1!important}
.selection-modal .practice-only{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;align-items:start!important;gap:14px!important;width:100%!important;min-width:0!important}
.selection-modal .practice-only>.choice-fieldset.full{grid-column:1/-1!important}
.selection-modal .battle-config-panel,.selection-modal .battle-config-panel>.form-grid{width:100%!important;min-width:0!important}
.selection-modal .battle-config-panel>.form-grid{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:12px!important;padding:0!important;overflow:visible!important}
.selection-modal>form>.modal-actions{position:relative!important;flex:0 0 auto!important;display:flex!important;justify-content:flex-end!important;gap:10px!important;width:100%!important;margin:0!important;padding:13px 20px calc(13px + env(safe-area-inset-bottom))!important;border-top:1px solid #e8e4f4!important;background:rgba(255,255,255,.99)!important;box-shadow:0 -10px 26px rgba(54,43,120,.08)!important;overflow:visible!important}
.selection-modal>form>.modal-actions>*{width:auto!important;min-width:150px!important;min-height:44px!important}
.selection-modal input:not([type="checkbox"]):not([type="radio"]),.selection-modal select,.selection-modal textarea{width:100%!important;min-width:0!important;max-width:100%!important}
.selection-modal input[type="checkbox"]{appearance:auto!important;-webkit-appearance:checkbox!important;width:18px!important;height:18px!important;min-width:18px!important;min-height:18px!important;max-width:18px!important;max-height:18px!important;flex:0 0 18px!important;margin:1px 0 0!important;padding:0!important;border-radius:4px!important;accent-color:#5b4cf0!important;box-shadow:none!important}
.selection-modal .support-options{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;align-content:start!important;gap:8px 12px!important;min-width:0!important}
.selection-modal .support-options .check,.selection-modal .assignment-late-toggle{display:flex!important;align-items:flex-start!important;gap:9px!important;min-width:0!important;width:100%!important;padding:10px 11px!important;border:1px solid #e4e0f2!important;border-radius:12px!important;background:#fff!important;font-size:13px!important;line-height:1.4!important;overflow-wrap:anywhere!important}
.selection-modal .assignment-late-toggle{grid-column:1/-1!important}
.selection-modal .live-mode-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}
.selection-modal .image-choice-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}
.selection-modal .activity-choice-grid{grid-template-columns:repeat(4,minmax(0,1fr))!important}
.selection-modal .session-choice-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}
.selection-modal .pair-choice-grid{grid-template-columns:repeat(4,minmax(0,1fr))!important}
.selection-modal .pair-choice-grid .pair-choice:first-child{grid-column:1/-1!important}
@media(max-width:900px){.selection-modal .activity-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.selection-modal .pair-choice-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}}
@media(max-width:700px){
  .modal-bg:has(.selection-modal){padding:4px!important;place-items:stretch center!important}
  .selection-modal{width:calc(100vw - 8px)!important;max-width:calc(100vw - 8px)!important;height:calc(100dvh - 8px)!important;max-height:calc(100dvh - 8px)!important;border-radius:18px!important}
  .selection-modal>.modal-head{padding:13px 14px 10px!important}.selection-modal>.lesson-progression{max-height:92px!important;margin:8px 12px 0!important}
  .selection-modal>form>.form-grid{grid-template-columns:minmax(0,1fr)!important;gap:11px!important;padding:12px 12px 18px!important;scrollbar-gutter:auto!important}
  .selection-modal .form-grid>*{grid-column:1!important}.selection-modal .practice-only{grid-template-columns:minmax(0,1fr)!important;gap:10px!important}.selection-modal .practice-only>*{grid-column:1!important}
  .selection-modal .live-mode-grid,.selection-modal .image-choice-grid,.selection-modal .activity-choice-grid,.selection-modal .session-choice-grid,.selection-modal .pair-choice-grid,.selection-modal .support-options,.selection-modal .battle-config-panel>.form-grid{grid-template-columns:minmax(0,1fr)!important}
  .selection-modal .pair-choice-grid .pair-choice:first-child{grid-column:1!important}
  .selection-modal>form>.modal-actions{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;padding:10px 12px calc(10px + env(safe-area-inset-bottom))!important}
  .selection-modal>form>.modal-actions>*{width:100%!important;min-width:0!important}
}
@media(max-width:430px){.selection-modal>form>.modal-actions{grid-template-columns:1fr!important}}

/* v2.11.2 mobile Live Room format card structure */
.selection-modal .live-mode-choice>span>b{grid-column:1!important;grid-row:1/3!important;align-self:start!important}
.selection-modal .live-mode-choice>span>strong{grid-column:2!important;grid-row:1!important;min-width:0!important;overflow-wrap:normal!important;word-break:normal!important}
.selection-modal .live-mode-choice>span>small{grid-column:2!important;grid-row:2!important;min-width:0!important;overflow-wrap:anywhere!important}


/* Education v2.11.3: one-scroll Practice setup and expanded card/question counts */
.lesson-progression-select{display:none}
.play-options-modal{display:flex!important;flex-direction:column!important;width:min(1040px,calc(100vw - 32px))!important;height:min(900px,calc(100dvh - 32px))!important;max-height:calc(100dvh - 32px)!important;padding:0!important;overflow:hidden!important}
.play-options-modal>.modal-head{flex:0 0 auto!important;padding:18px 22px 14px!important;border-bottom:1px solid #e8e4f3!important;background:#fff!important}
.play-options-form{display:flex!important;flex:1 1 auto!important;min-height:0!important;flex-direction:column!important;width:100%!important;overflow:hidden!important;padding:0!important}
.play-options-scroll{display:flex!important;flex:1 1 auto!important;min-height:0!important;flex-direction:column!important;gap:16px!important;width:100%!important;padding:16px 22px 24px!important;overflow-y:auto!important;overflow-x:hidden!important;overscroll-behavior:contain!important;-webkit-overflow-scrolling:touch!important}
.play-options-scroll>.lesson-progression{flex:0 0 auto!important;width:100%!important;max-height:none!important;margin:0!important;overflow:visible!important}
.play-options-scroll>.form-grid{width:100%!important;margin:0!important;padding:0!important;overflow:visible!important}
.play-options-scroll>.choice-fieldset{width:100%!important;max-width:100%!important;min-width:0!important;margin:0!important;padding:14px!important;border:1px solid #e2ddf4!important;border-radius:18px!important;background:#fff!important}
.play-options-scroll .image-choice-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}
.play-options-scroll .activity-choice-grid{grid-template-columns:repeat(4,minmax(0,1fr))!important}
.play-options-scroll .session-choice-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}
.play-options-scroll .pair-choice-grid{grid-template-columns:repeat(4,minmax(0,1fr))!important}
.play-options-scroll .pair-choice-all{grid-column:1/-1!important}
.play-options-form>.modal-actions{position:relative!important;flex:0 0 auto!important;display:flex!important;justify-content:flex-end!important;gap:10px!important;width:100%!important;margin:0!important;padding:13px 20px calc(13px + env(safe-area-inset-bottom))!important;border-top:1px solid #e8e4f4!important;background:rgba(255,255,255,.99)!important;box-shadow:0 -10px 26px rgba(54,43,120,.08)!important}
.play-options-form>.modal-actions>*{width:auto!important;min-width:150px!important;min-height:44px!important}
@media(max-width:900px){.play-options-scroll .activity-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.play-options-scroll .pair-choice-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important}}
@media(max-width:700px){
  .modal-bg:has(.play-options-modal){padding:0!important;place-items:stretch center!important;overflow:hidden!important}
  .play-options-modal{width:100vw!important;max-width:100vw!important;height:100dvh!important;max-height:100dvh!important;border:0!important;border-radius:0!important}
  .play-options-modal>.modal-head{padding:12px 14px 10px!important}
  .play-options-scroll{gap:11px!important;padding:12px 12px 18px!important}
  .play-options-scroll>.choice-fieldset{padding:11px!important;border-radius:15px!important}
  .lesson-progression{padding:11px!important;border-radius:15px!important}
  .lesson-progression-head{margin-bottom:8px!important}
  .lesson-progression-levels{display:none!important}
  .lesson-progression-select{display:grid!important;gap:5px!important;width:100%!important}
  .lesson-progression-select>span{font-size:12px!important;font-weight:900!important;color:#5f5874!important}
  .lesson-progression-select select{display:block!important;width:100%!important;max-width:100%!important;min-width:0!important;padding:11px 38px 11px 12px!important;border:1px solid #dcd7ef!important;border-radius:12px!important;background:#fff!important;color:#2d2945!important;font-size:14px!important;text-overflow:ellipsis!important;white-space:nowrap!important;overflow:hidden!important}
  .play-options-scroll .image-choice-grid,.play-options-scroll .activity-choice-grid,.play-options-scroll .session-choice-grid{display:grid!important;grid-template-columns:1fr!important;gap:8px!important}
  .play-options-scroll .pair-choice-grid{display:grid!important;grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:8px!important}
  .play-options-scroll .pair-choice-all{grid-column:1/-1!important}
  .play-options-scroll .image-choice-body,.play-options-scroll .mode-choice-body,.play-options-scroll .session-choice-body{display:grid!important;grid-template-columns:38px minmax(0,1fr)!important;grid-template-rows:auto auto!important;gap:4px 10px!important;width:100%!important;min-height:0!important;padding:11px!important;text-align:left!important}
  .play-options-scroll .image-choice-body>b,.play-options-scroll .mode-choice-icon,.play-options-scroll .mode-choice-body>b,.play-options-scroll .session-choice-body>b{grid-column:1!important;grid-row:1/3!important;margin:0!important;align-self:start!important}
  .play-options-scroll .mode-choice-title,.play-options-scroll .mode-choice-description,.play-options-scroll .session-choice-body>span{grid-column:2!important;min-width:0!important}
  .play-options-scroll .pair-choice-body{min-height:84px!important;padding:11px!important}
  .play-options-scroll .pair-choice-label{font-size:14px!important}
  .play-options-scroll .pair-choice-note{font-size:11.5px!important;line-height:1.35!important}
  .play-options-form>.modal-actions{display:grid!important;grid-template-columns:1fr 1fr!important;padding:10px 12px calc(10px + env(safe-area-inset-bottom))!important}
  .play-options-form>.modal-actions>*{width:100%!important;min-width:0!important}
}
@media(max-width:390px){.play-options-form>.modal-actions{grid-template-columns:1fr!important}.play-options-scroll .pair-choice-grid{grid-template-columns:1fr!important}.play-options-scroll .pair-choice-all{grid-column:1!important}}

/* Education v2.12.0: deep question banks and card-first Memory Sprint */
.live-config-form[data-live-mode="memory-sprint"] .practice-only,
.live-config-form[data-live-mode="battle"] .practice-only{display:none!important}
.live-config-form[data-live-mode="memory-sprint"] .battle-only,
.live-config-form[data-live-mode="battle"] .battle-only{display:block!important}
.selection-modal .live-mode-grid-three{grid-template-columns:repeat(3,minmax(0,1fr))!important}
.question-bank-tag{background:#eef8ff!important;color:#176184!important}
.memory-sprint-room-card{border-color:#90d4e8!important;background:linear-gradient(150deg,#f5fcff,#fff)!important}
.memory-sprint-page .battle-question-card{background:linear-gradient(150deg,#fbfaff,#eefbff)!important}
.memory-sprint-top{border-color:#9ad7e9!important;background:linear-gradient(135deg,#f7fdff,#f8f5ff)!important}
.memory-sprint-flip-card{
  width:min(520px,100%);min-height:250px;margin:22px auto;padding:28px;border:2px solid #6b5cf2;border-radius:28px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  background:linear-gradient(145deg,#5f50ec,#7868f7);color:#fff;box-shadow:0 24px 54px rgba(78,63,190,.24);cursor:pointer
}
.memory-sprint-flip-card>span{font-size:72px;line-height:1}.memory-sprint-flip-card strong{font-size:22px}.memory-sprint-flip-card small{max-width:360px;color:rgba(255,255,255,.82);font-size:13px;line-height:1.5;text-align:center}
.memory-sprint-prompt{animation:memorySprintFlip .35s ease both;transform-origin:center}
.memory-sprint-waiting{padding:18px;border:1px dashed #cfc7fa;border-radius:16px;background:#faf9ff;color:#746e87;text-align:center;font-size:13px}
.memory-sprint-choices .battle-choice{background:#fff}
@keyframes memorySprintFlip{from{transform:rotateY(80deg);opacity:.2}to{transform:rotateY(0);opacity:1}}
@media(prefers-reduced-motion:reduce){.memory-sprint-prompt{animation:none}}
@media(max-width:920px){.selection-modal .live-mode-grid-three{grid-template-columns:1fr!important}}
@media(max-width:700px){
  .memory-sprint-flip-card{min-height:210px;margin:10px auto;padding:22px 16px;border-radius:22px}
  .memory-sprint-flip-card>span{font-size:58px}.memory-sprint-flip-card strong{font-size:18px;text-align:center}
  .memory-sprint-flip-card small{font-size:12px}
}


/* Education v2.14.0: balanced library rows and Early Education */
.lesson-library-grid,.lesson-library-grid-compact,.lesson-library-grid-full{
  display:grid!important;grid-template-columns:repeat(4,minmax(0,1fr))!important;align-items:stretch!important;justify-content:stretch!important;gap:16px!important
}
.lesson-library-grid>.lesson-card,.lesson-library-grid-compact>.lesson-card,.lesson-library-grid-full>.lesson-card{
  width:100%!important;max-width:none!important;min-width:0!important;height:100%!important;align-self:stretch!important;margin:0!important
}
.guest-lesson-card{display:grid!important;grid-template-rows:auto minmax(44px,auto) auto minmax(0,1fr) auto!important;min-height:520px!important}
.guest-lesson-card .lesson-level-chips{align-content:start!important}
.guest-lesson-card .lesson-actions{align-self:end!important}
.lesson-card:has(.lesson-level-chip span:first-child){height:100%!important}
.early-learning-card{border-color:#cfc5ff!important;background:linear-gradient(155deg,#fff,#f8fbff)!important}
.early-learning-card .lesson-icon-tile{background:linear-gradient(145deg,#fff7d8,#edf8ff)!important}
@media(max-width:1120px){.lesson-library-grid,.lesson-library-grid-compact,.lesson-library-grid-full{grid-template-columns:repeat(3,minmax(0,1fr))!important}}
@media(max-width:860px){.lesson-library-grid,.lesson-library-grid-compact,.lesson-library-grid-full{grid-template-columns:repeat(2,minmax(0,1fr))!important}.guest-lesson-card{min-height:500px!important}}
@media(max-width:520px){.lesson-library-grid,.lesson-library-grid-compact,.lesson-library-grid-full{grid-template-columns:1fr!important}.guest-lesson-card{display:flex!important;min-height:0!important}}


/* Education v2.14.0 — live-room edit modal regression hotfix */
.selection-modal>form{min-height:0!important;overflow:hidden!important}
.selection-modal>form>.form-grid{
  flex:1 1 auto!important;
  min-height:0!important;
  width:100%!important;
  padding:18px 22px 24px!important;
  overflow-x:hidden!important;
  overflow-y:auto!important;
  overscroll-behavior-y:contain!important;
  scrollbar-gutter:stable!important;
}
.selection-modal .source-picker-field,
.selection-modal .form-submit-error,
.selection-modal .room-reuse-note{grid-column:1/-1!important;min-width:0!important;width:100%!important}
.selection-modal .room-reuse-note{margin:0!important;padding:11px 13px!important;font-size:12px!important;line-height:1.45!important}
.selection-modal .form-submit-error{margin:0!important}
.selection-modal>form>.modal-actions{position:relative!important;z-index:3!important;flex:0 0 auto!important}
.selection-modal>.lesson-progression{display:none!important}
@media(max-width:760px){
  .selection-modal>form>.form-grid{padding:12px 12px 18px!important;scrollbar-gutter:auto!important}
  .selection-modal .room-reuse-note{font-size:11px!important}
}


/* Education v2.14.0 branded startup transition */


/* Education v2.14.0 — preserved scroll position and reliable mobile update action */
.education-update-banner{position:relative;z-index:40;pointer-events:auto;touch-action:manipulation}
.education-update-banner .primary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;pointer-events:auto;touch-action:manipulation}
@media(max-width:760px){
  .education-update-banner{position:sticky;top:6px;width:calc(100% - 16px);margin:8px auto;padding:12px;box-shadow:0 14px 34px rgba(70,52,8,.14)}
  .education-update-banner .primary{width:100%;min-height:48px;font-size:14px}
}


/* Education v2.14.0 — responsive lesson picker and reliable touch scrolling */
.modal-bg{
  touch-action:pan-y!important;
  overscroll-behavior:contain!important;
}
.modal-bg .modal,
.modal-bg form,
.modal-bg .play-options-scroll,
.modal-bg .lesson-picker-list,
.modal-bg .selection-modal>form>.form-grid{
  touch-action:pan-y!important;
}
.lesson-picker-backdrop{padding:16px!important;place-items:center!important;overflow:hidden!important}
.lesson-picker-modal{
  display:flex!important;
  flex-direction:column!important;
  width:min(720px,calc(100vw - 32px))!important;
  max-height:min(780px,calc(100dvh - 32px))!important;
  padding:0!important;
  overflow:hidden!important;
}
.lesson-picker-modal>.modal-head{flex:0 0 auto;padding:18px 20px 12px!important}
.lesson-picker-copy{flex:0 0 auto;margin:0;padding:0 20px 12px;color:var(--muted);font-size:13px;line-height:1.5}
.lesson-picker-list{
  display:grid;
  gap:9px;
  flex:1 1 auto;
  min-height:0;
  padding:2px 20px 18px;
  overflow-y:auto;
  overflow-x:hidden;
  -webkit-overflow-scrolling:touch;
  scrollbar-gutter:stable;
}
.lesson-picker-option{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:12px;
  width:100%;
  min-width:0;
  padding:12px;
  border:1px solid #dfdaf7;
  border-radius:15px;
  background:#fff;
  color:#302a57;
  text-align:left;
  box-shadow:0 6px 18px rgba(66,54,151,.04);
}
.lesson-picker-option:hover,.lesson-picker-option:focus-visible{border-color:#7565ed;background:#f7f5ff;box-shadow:0 0 0 3px rgba(105,88,236,.1)}
.lesson-picker-option>span:nth-child(2){display:block;min-width:0}
.lesson-picker-option strong,.lesson-picker-option small{display:block;min-width:0;overflow-wrap:anywhere}
.lesson-picker-option strong{font-size:13px;line-height:1.35}
.lesson-picker-option small{margin-top:4px;color:var(--muted);font-size:11px;line-height:1.4}
.lesson-picker-option>b{font-size:18px;color:#5b4cf0}
.lesson-picker-grade{display:inline-flex;align-items:center;justify-content:center;min-width:82px;min-height:38px;padding:7px 9px;border-radius:12px;background:#eeeaff;color:#5145c6;font-size:11px;font-weight:950;text-align:center}
.lesson-picker-modal>.modal-actions{flex:0 0 auto;margin:0!important;padding:12px 20px max(12px,env(safe-area-inset-bottom))!important;border-top:1px solid #e9e6f4;background:#fff}
.play-options-modal,.selection-modal{overscroll-behavior:contain!important}
.play-options-scroll,.selection-modal>form>.form-grid{overscroll-behavior-y:contain!important;touch-action:pan-y!important}
@media(max-width:620px){
  .lesson-picker-backdrop{padding:6px!important;place-items:stretch center!important}
  .lesson-picker-modal{width:calc(100vw - 12px)!important;max-height:calc(100dvh - 12px)!important;border-radius:20px!important}
  .lesson-picker-modal>.modal-head{padding:14px 14px 9px!important}
  .lesson-picker-copy{padding:0 14px 10px;font-size:12px}
  .lesson-picker-list{padding:2px 14px 14px;gap:8px}
  .lesson-picker-option{grid-template-columns:72px minmax(0,1fr) auto;gap:9px;padding:10px}
  .lesson-picker-grade{min-width:0;width:72px;min-height:36px;padding:6px;font-size:10px}
  .lesson-picker-option strong{font-size:12px}.lesson-picker-option small{font-size:10px}
  .lesson-picker-modal>.modal-actions{padding:10px 14px max(10px,env(safe-area-inset-bottom))!important}
  .lesson-picker-modal>.modal-actions>*{width:100%}
}

/* Education v2.14.0 — reliable lesson opening and explicit modal recovery */
body.education-modal-open{
  overflow:hidden!important;
  overscroll-behavior:none!important;
}
.practice-lesson-switch{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(280px,.9fr);
  align-items:end;
  gap:14px;
  width:100%;
  min-width:0;
  padding:14px;
  border:1px solid #ddd8f7;
  border-radius:17px;
  background:linear-gradient(145deg,#faf9ff,#f5fbff);
}
.practice-lesson-switch>div,.practice-lesson-switch .field,.practice-lesson-switch select{min-width:0;max-width:100%}
.practice-lesson-switch>div>strong,.practice-lesson-switch>div>small{display:block;overflow-wrap:anywhere}
.practice-lesson-switch>div>strong{margin-top:3px;font-size:14px;color:var(--ink)}
.practice-lesson-switch>div>small{margin-top:4px;color:var(--muted);font-size:11px;line-height:1.45}
.practice-lesson-switch .field{margin:0}
.play-options-modal .play-options-scroll{overflow-x:hidden!important}
@media(max-width:700px){
  .practice-lesson-switch{grid-template-columns:1fr;padding:12px;gap:10px}
  .practice-lesson-switch>div>strong{font-size:13px}
  .practice-lesson-switch>div>small{font-size:11px}
}

/* Education v2.14.0 — fixed overlays must remain relative to the viewport */


/* Education v2.14.0 — render-stable shell */
/* Opening a modal, selecting a lesson, or updating a form recreates .shell.
   Do not replay a whole-page fade on those ordinary state changes. */
.shell{animation:none!important;opacity:1!important;transform:none!important}


/* Education v2.14.0 — audited smooth clocks, stable panels, and safe containment */
.game-page .game-top,.battle-page .battle-question-card,.battle-page .battle-score-card,.battle-page .battle-countdown{contain:layout paint}
.js-education-time,.js-battle-clock{font-variant-numeric:tabular-nums;min-width:3.2ch;text-align:right}
.js-education-time.danger{color:#c9384d}
.battle-question-status strong,.battle-question-status .js-battle-clock{display:inline-flex;align-items:center;justify-content:flex-end;min-width:54px}
.selection-modal>form>.form-grid,.play-options-scroll,.lesson-picker-list{overflow-anchor:none}
.lesson-library-grid>.lesson-card{contain:layout style}
@media(max-width:700px){.battle-question-status{gap:10px}.battle-question-status strong,.battle-question-status .js-battle-clock{min-width:48px}.play-options-scroll,.selection-modal>form>.form-grid{scrollbar-gutter:auto!important}}