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strong{color:var(--ink);font-size:13.5px;font-weight:750;line-height:1.3;display:block}.help-checklist p{color:var(--muted);margin:2px 0 0;font-size:12px;line-height:1.5}.class-summary-box{border:1px solid var(--line);background:#f3f7f4;border-radius:16px;padding:16px}.summary-stat-row{text-align:center;border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);gap:8px;padding-bottom:12px;display:grid}.stat-unit .stat-num{color:var(--green-dark);font-size:20px;font-weight:800;line-height:1.1;display:block}.stat-unit .stat-lbl{color:var(--muted);margin-top:2px;font-size:10.5px;display:block}.summary-current-room{text-align:center;color:var(--ink-secondary);margin-top:12px;font-size:12px}.summary-current-room strong{color:var(--green-dark)}.footer{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:28px 0 40px;font-size:12px;display:flex}.footer-left strong{color:var(--ink);font-weight:700;display:block}.footer-left span{margin-top:2px;display:block}.footer-right{align-items:center;gap:16px;display:flex}.footer-teacher-link{color:var(--green);border-radius:6px;padding:4px 8px;font-weight:700;text-decoration:none;transition:all .15s}.footer-teacher-link:hover{background:var(--mint);color:var(--green-dark)}.site-shell[data-theme=dark]{--ink:#f0fdf4;--ink-secondary:#cbd5e1;--muted:#94a3b8;--line:#1e3a2b;--line-strong:#2d5a42;--cream:#08100d;--paper:#112019;--card-bg:#0f1b15e0;--card-border:#34d3992e;--glass-header:#0e1914d9;--green:#34d399;--green-hover:#10b981;--green-dark:#6ee7b7;--mint:#16382a;--mint-glow:#34d39933;--physics-accent:#34d399;--physics-badge:#13392a;--math-accent:#a78bfa;--math-badge:#26204a;--shadow-sm:0 2px 8px #0003;--shadow-md:0 10px 30px -8px #0006;--shadow-lg:0 20px 45px -12px #00000080;color:#f0fdf4;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:radial-gradient(circle at 14% 12%,#14532d66 0,#0000 28rem),radial-gradient(circle at 86% 25%,#4338ca4d 0,#0000 32rem),radial-gradient(circle at 50% 85%,#0e749040 0,#0000 30rem),linear-gradient(#070d0a 0%,#0b1510 50%,#08100d 100%)}.site-shell[data-theme=dark] .physics-backdrop{opacity:.8;mix-blend-mode:screen}.site-shell[data-theme=dark] .hero h1{color:#f0fdf4}.site-shell[data-theme=dark] .hero h1 em{-webkit-text-fill-color:transparent;background:linear-gradient(135deg,#34d399 0%,#2dd4bf 100%);-webkit-background-clip:text}.site-shell[data-theme=dark] .subject-card-btn{background:#112019;border-color:#1e3a2b}.site-shell[data-theme=dark] .subject-card-btn.physics.selected{background:linear-gradient(135deg,#132b21 0%,#112019 100%);border-color:#34d399}.site-shell[data-theme=dark] .subject-card-btn.math.selected{background:linear-gradient(135deg,#201a3d 0%,#112019 100%);border-color:#a78bfa}.site-shell[data-theme=dark] .subject-card-icon{color:#cbd5e1;background:#192d24}.site-shell[data-theme=dark] 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.preset-chip{color:#cbd5e1;background:#112019;border-color:#244233}.site-shell[data-theme=dark] .preset-chip:hover{color:#34d399;background:#193829;border-color:#34d399}.site-shell[data-theme=dark] .upload-dropzone{background:#0c1813;border-color:#264736}.site-shell[data-theme=dark] .upload-dropzone:hover{background:#12221b;border-color:#34d399}.site-shell[data-theme=dark] .upload-dropzone.has-file{background:#112019;border-color:#2d5a42}.site-shell[data-theme=dark] .file-remove-btn{color:#f87171;background:#251717;border-color:#5c2424}.site-shell[data-theme=dark] .file-remove-btn:hover{background:#3d1c1c}.site-shell[data-theme=dark] .submission-receipt-card{color:#6ee7b7;background:#0e271c;border-color:#1e5c3e}.site-shell[data-theme=dark] .receipt-header{border-bottom-color:#34d39933}.site-shell[data-theme=dark] .receipt-footer{border-top-color:#34d39933}.site-shell[data-theme=dark] .receipt-reset-btn{color:#34d399;background:#153828;border-color:#34d399}.site-shell[data-theme=dark] 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var(--line);color:var(--ink);background:var(--paper);border-radius:9px;padding:9px 28px 9px 11px}.refresh-button,.secondary-button{border:1px solid var(--line);color:var(--green-dark);background:var(--paper);border-radius:9px;padding:9px 12px;font-size:12px;text-decoration:none}.refresh-button:hover,.secondary-button:hover{border-color:var(--green);background:var(--mint)}.teacher-summary{border:1px solid var(--line);background:var(--paper);border-radius:17px;grid-template-columns:180px 1fr auto;align-items:center;gap:25px;margin-bottom:18px;padding:20px 24px;display:grid}.teacher-summary .eyebrow{letter-spacing:.08em;margin:0 0 5px}.teacher-summary h2{letter-spacing:-.06em;margin:0;font-size:30px}.teacher-summary h2 small{color:var(--muted);font-size:13px;font-weight:500}.teacher-progress{background:#edf1ec;border-radius:99px;height:8px;overflow:hidden}.teacher-progress span{border-radius:inherit;background:var(--green);height:100%;display:block}.teacher-summary-note{color:var(--muted);white-space:nowrap;font-size:11px}.teacher-summary-note span{color:var(--green-dark);background:var(--mint);border-radius:99px;margin-right:5px;padding:5px 8px;font-weight:700}.teacher-table-wrap{box-shadow:0 16px 45px #1f47350f}.teacher-denied{background:var(--cream);place-items:center;min-height:100vh;padding:24px;display:grid}.teacher-denied-card{border:1px solid var(--line);background:var(--paper);text-align:center;border-radius:22px;width:min(100%,440px);padding:36px;box-shadow:0 18px 50px #1f473514}.teacher-denied-card .brand-mark{margin:0 auto 35px}.teacher-denied-card h1{letter-spacing:-.06em;margin:0;font-size:30px}.teacher-denied-card p:not(.eyebrow){color:var(--muted);font-size:13px;line-height:1.7}.teacher-denied-card .secondary-button{margin-top:12px;display:inline-block}.status-table-wrap{border:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow-md);border-radius:20px;overflow:auto}.status-table{border-collapse:collapse;text-align:left;width:100%;min-width:680px}.status-table th{color:#8a948d;letter-spacing:.08em;text-transform:uppercase;background:#f4f6f0;padding:14px 18px;font-size:10px}.status-table td{vertical-align:middle;border-top:1px solid #edf0eb;padding:14px 18px;font-size:12px}.status-table td:first-child{width:70px}.status-table td:nth-child(2){width:34%}.status-table td strong,.status-table td small{display:block}.status-table td small{color:var(--muted);margin-top:4px;font-size:10px}.muted-cell{color:#9ba49e;font-variant-numeric:tabular-nums}.file-cell span,.file-cell small{text-overflow:ellipsis;white-space:nowrap;max-width:245px;overflow:hidden}.empty-file{color:#bac1bb}.status-pill{white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:6px 9px;font-size:10px;font-weight:750;display:inline-flex}.status-pill i{border-radius:50%;width:6px;height:6px}.status-pill.sent{color:var(--green-dark);background:var(--mint)}.status-pill.sent i{background:#48a875}.status-pill.pending{color:#887964;background:#f5eee0}.status-pill.pending i{background:#cfaa67}.download-link{color:var(--green);margin-top:6px;font-size:10px;text-decoration:none;display:block}.download-link:hover{text-decoration:underline}.teacher-login-shell{background:radial-gradient(circle at 80% 10%, #e9f5e8 0, transparent 28rem), var(--cream);place-items:center;min-height:100vh;padding:24px;display:grid}.teacher-login-card{border:1px solid var(--line);background:var(--paper);border-radius:24px;width:min(100%,430px);padding:40px;box-shadow:0 24px 70px #1f47351a}.teacher-login-brand{color:var(--green-dark);align-items:center;gap:10px;font-size:18px;font-weight:800;text-decoration:none;display:inline-flex}.teacher-login-brand:first-letter{color:var(--paper);background:var(--green)}.teacher-login-brand span{color:var(--ink);font-size:13px}.teacher-login-card .eyebrow{margin:42px 0 8px}.teacher-login-card h1{color:var(--ink);letter-spacing:-.07em;margin:0;font-size:38px}.teacher-login-card>p:not(.eyebrow){color:var(--muted);margin:16px 0 28px;font-size:13px;line-height:1.7}.teacher-login-card form{gap:9px;display:grid}.teacher-login-card label{color:var(--green-dark);font-size:12px;font-weight:700}.teacher-login-card input[type=password]{border:1px solid var(--line);width:100%;color:var(--ink);font:inherit;box-sizing:border-box;background:#fff;border-radius:10px;padding:13px 14px}.teacher-login-card input[type=password]:focus{border-color:var(--green);outline:3px solid #4f98722e}.teacher-login-card button{color:#fff;background:var(--green);font:inherit;cursor:pointer;border:0;border-radius:10px;margin-top:10px;padding:13px 16px;font-weight:800}.teacher-login-card button:hover{background:var(--green-dark)}.teacher-login-error{color:#b34b35;font-size:12px}.teacher-login-back{color:var(--muted);text-align:center;margin-top:26px;font-size:12px;text-decoration:none;display:block}.teacher-login-back:hover{color:var(--green-dark)}.file-record{border-bottom:1px solid #edf0eb;gap:2px;margin-bottom:9px;padding-bottom:9px;display:grid}.file-record:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}.file-record strong{color:var(--green-dark);font-size:10px}.file-record span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.file-record .drive-status{border-radius:999px;width:fit-content;max-width:100%;padding:3px 7px;font-size:9px;font-weight:700}.drive-status.available{color:var(--green-dark);background:var(--mint)}.drive-status.unknown{color:#887964;background:#f5eee0}.drive-status.missing,.drive-status.trashed,.drive-status.moved,.drive-status.error{color:#9e4536;background:#fbe7e0}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}