.student-main{max-width:1100px;padding:28px 20px}.welcome{gap:16px;align-items:center;margin:8px 0 24px}.welcome h1{margin:8px 0;font-size:30px}.eyebrow{color:#197565;font-size:12px;font-weight:700;letter-spacing:1px}.welcome button,.section-heading button{flex:0 0 auto;padding:10px 15px;font-size:14px}.panel{background:#fff;border:1px solid #dce5df;border-radius:18px;padding:24px;margin-bottom:22px}.panel h2{font-size:20px;margin:0 0 10px}.identity{max-width:540px;margin:32px auto 60px}.identity form{display:grid;gap:12px}.identity label{font-size:14px;font-weight:600}.identity input,.identity select{width:100%;padding:13px;font-size:16px;border:1px solid #ced8cf;border-radius:10px}.identity button{margin-top:8px}.my-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}.my-stat{background:#e8efea;border-radius:14px;padding:18px;text-align:center;font-size:13px;color:#53675d}.my-stat b{display:block;font-size:27px;color:#172e2c;margin-bottom:4px}.section-heading{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:16px}.section-heading h2{font-size:20px;margin:0}.homework-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,310px),1fr));gap:14px;margin-bottom:24px}.homework-card{background:#fff;border:1px solid #dce5df;border-radius:16px;padding:20px}.homework-card h3{font-size:17px;margin:0 0 12px;line-height:1.5}.homework-card p{font-size:13px;color:#6d7c75;line-height:1.7}.homework-card button{width:100%;padding:11px;font-size:14px;margin-top:10px}.badge{display:inline-block;border-radius:20px;padding:4px 9px;font-size:12px;background:#e4f3eb;color:#197565;margin-right:6px}.badge.wait{background:#f1f5f9;color:#64748b}.badge.excellent{background:#fff2c6;color:#986800}.badge.partial{background:#fff0e1;color:#9a3412}.detail{scroll-margin-top:66px}.paper-pages{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.paper-page{margin:0;min-width:0}.paper-page img{display:block;width:100%;max-height:720px;object-fit:contain;background:#f6f8f5;border:1px solid #e1e9e2;border-radius:10px;cursor:zoom-in}.paper-page figcaption{text-align:center;font-size:13px;color:#6d7c75;padding:8px}.question-heading{margin-top:32px;border-top:1px solid #e4eae5;padding-top:24px}.question-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:14px;background:#eef4ef;border-radius:12px;margin-bottom:16px}.question-actions button{flex:0 0 auto;padding:12px 16px;font-size:14px}.question-actions label{font-size:13px}.question-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.question-card{background:#fff;border:1px solid #dce5df;border-radius:12px;padding:16px;min-width:0}.question-card.is-wrong{border-color:#f3b376;background:#fffaf4}.question-card label{display:flex;gap:8px;align-items:center;font-weight:600;font-size:14px}.question-card input{width:18px;height:18px}.question-card canvas{display:block;max-width:100%;height:auto;margin:12px auto}.empty{background:#fff;padding:28px;border-radius:14px;color:#6d7c75;font-size:14px}#questionStatus,#identityStatus,#pageStatus{font-size:14px;line-height:1.7;color:#265d50}#photoDialog{max-width:96vw;max-height:96vh;border:0;border-radius:14px;padding:12px}#photoDialog::backdrop{background:#000b}#photoDialog button{display:block;margin:0 0 10px auto;padding:8px 14px;font-size:14px}#photoDialog img{display:block;max-width:90vw;max-height:82vh;object-fit:contain}footer{font-size:12px;color:#7c8b81;text-align:center;padding:20px 0}[hidden]{display:none!important}@media(max-width:650px){.student-main{padding:18px 14px}.welcome h1{font-size:25px}.welcome{align-items:flex-start}.panel{padding:18px}.paper-pages,.question-cards{grid-template-columns:1fr}.my-stat{padding:15px 8px}.my-stat b{font-size:24px}.question-actions button{width:100%}.detail{scroll-margin-top:65px}}
.roster-panel{padding:22px}.student-entry{max-width:540px}.student-entry label{display:block;font-size:14px;font-weight:600;margin-bottom:10px}.entry-controls{display:flex;gap:12px}.entry-controls select{flex:1;min-width:0;padding:13px;font-size:16px;border:1px solid #ced8cf;border-radius:10px;background:#fff}.entry-controls button{flex:0 0 auto;padding:12px 20px;font-size:15px}.class-assignments{margin:26px 0}.excellent-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,420px),1fr));gap:18px}.excellent-set{border:1px solid #e5dfc8;border-radius:13px;padding:15px;background:#fffdf5;min-width:0}.excellent-set h3{font-size:15px;margin:0 0 14px}.excellent-set .paper-pages{gap:10px}.excellent-set .paper-page img{aspect-ratio:4/3;max-height:400px}.excellent-set .paper-page figcaption{padding-bottom:0}@media(max-width:650px){.roster-panel{padding:17px}.entry-controls{flex-direction:column}.entry-controls button{width:100%}.excellent-set .paper-pages{grid-template-columns:repeat(2,minmax(0,1fr))}}
.student-tabs{display:flex;gap:10px;margin-bottom:20px}.student-tabs button{padding:12px 20px;font-size:15px}.library-filters{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:18px 0}.library-filters label{font-size:14px}.library-filters select,.library-filters input{padding:8px;border:1px solid #ced8cf;border-radius:8px;font-size:14px}.library-filters button{padding:9px 12px;font-size:14px}.library-source{font-size:12px;color:#6d7c75;line-height:1.7}.question-card .mastery{font-size:13px;font-weight:400;color:#197565;margin:10px 0}