:root {
  color-scheme: dark;
  --bg: #111117;
  --panel: #191923;
  --panel-2: #222330;
  --text: #f4f2ed;
  --muted: #aaa8b4;
  --line: rgba(255,255,255,.10);
  --accent: #61e7cf;
  --accent-2: #e3b45d;
  --danger: #ff7043;
  --radius: 22px;
  --shadow: 0 22px 55px rgba(0,0,0,.28);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body { margin:0; background: radial-gradient(circle at 15% 0%, #2b2132 0, transparent 30rem), var(--bg); color:var(--text); min-height:100vh; }
button, select { font:inherit; }
button { cursor:pointer; }
button:disabled { opacity:.45; cursor:not-allowed; }
.topbar { min-height:72px; padding:13px clamp(16px,4vw,48px); display:flex; align-items:center; justify-content:space-between; gap:16px; border-bottom:1px solid var(--line); position:sticky; top:0; z-index:20; background:rgba(17,17,23,.86); backdrop-filter:blur(18px); }
.brand { display:flex; align-items:center; gap:12px; }
.brand strong,.brand span { display:block; }
.brand span { color:var(--muted); font-size:12px; margin-top:2px; }
.system-status { font-size:13px; color:var(--muted); padding:8px 12px; border:1px solid var(--line); border-radius:999px; max-width:45vw; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.system-status[data-tone="good"] { color:var(--accent); border-color:rgba(97,231,207,.3); }
.system-status[data-tone="bad"] { color:#ff9d82; border-color:rgba(255,112,67,.35); }
.app-shell { width:min(1480px,100%); margin:auto; padding:22px clamp(14px,3vw,38px) 48px; }
.notice { display:flex; justify-content:space-between; align-items:flex-start; gap:16px; padding:14px 16px; border:1px solid rgba(227,180,93,.22); background:rgba(227,180,93,.07); border-radius:16px; margin-bottom:16px; }
.notice strong { color:#f3d18c; }
.notice p { margin:4px 0 0; color:var(--muted); font-size:13px; line-height:1.45; }
.icon-btn { border:0; background:transparent; color:var(--muted); font-size:24px; line-height:1; }
.mode-switch { display:inline-flex; padding:4px; background:var(--panel); border:1px solid var(--line); border-radius:14px; margin-bottom:18px; }
.mode-switch button { border:0; color:var(--muted); background:transparent; padding:10px 14px; border-radius:10px; }
.mode-switch button.active { background:#2b2b39; color:var(--text); box-shadow:inset 0 0 0 1px rgba(255,255,255,.06); }
.workspace { display:grid; grid-template-columns:minmax(0,1.65fr) minmax(300px,.75fr); gap:20px; align-items:start; }
.camera-column,.side-column { display:grid; gap:20px; }
.camera-card,.panel,.result-card { background:linear-gradient(180deg, rgba(31,31,43,.98), rgba(24,24,33,.98)); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow); overflow:hidden; }
.camera-toolbar { display:flex; justify-content:space-between; align-items:center; gap:12px; padding:15px 17px; }
.eyebrow { display:block; font-size:10px; letter-spacing:.16em; color:var(--accent-2); font-weight:800; margin-bottom:3px; }
.camera-toolbar strong { font-size:13px; }
#handState[data-active="true"] { color:var(--accent); }
.ghost-btn,.secondary-btn { border:1px solid var(--line); background:rgba(255,255,255,.03); color:var(--text); border-radius:12px; padding:10px 13px; }
.camera-stage { position:relative; aspect-ratio:16/10; min-height:340px; background:#08090d; overflow:hidden; }
.camera-stage video,.camera-stage canvas { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
html[data-mirror="true"] .camera-stage video, html[data-mirror="true"] .camera-stage #overlay { transform:scaleX(-1); }
.frame-guide { position:absolute; inset:12%; pointer-events:none; }
.frame-guide span { position:absolute; width:34px; height:34px; border-color:rgba(255,255,255,.45); border-style:solid; }
.frame-guide span:nth-child(1) { left:0; top:0; border-width:2px 0 0 2px; border-radius:12px 0 0 0; }
.frame-guide span:nth-child(2) { right:0; top:0; border-width:2px 2px 0 0; border-radius:0 12px 0 0; }
.frame-guide span:nth-child(3) { left:0; bottom:0; border-width:0 0 2px 2px; border-radius:0 0 0 12px; }
.frame-guide span:nth-child(4) { right:0; bottom:0; border-width:0 2px 2px 0; border-radius:0 0 12px 0; }
.auto-capture-overlay { position:absolute; inset:0; z-index:6; display:flex; flex-direction:column; align-items:center; justify-content:center; pointer-events:none; background:radial-gradient(circle at center,rgba(8,9,13,.10),rgba(8,9,13,.36)); text-align:center; text-shadow:0 3px 18px rgba(0,0,0,.72); }
.auto-capture-overlay[hidden] { display:none; }
.auto-capture-countdown { width:118px; height:118px; border-radius:50%; display:grid; place-items:center; font-size:68px; line-height:1; font-weight:800; color:#fff; border:4px solid rgba(255,255,255,.92); background:rgba(8,9,13,.40); box-shadow:0 12px 42px rgba(0,0,0,.38), inset 0 0 0 7px rgba(255,255,255,.08); animation:countdownPulse .85s ease-in-out infinite alternate; }
.auto-capture-overlay strong { margin-top:14px; font-size:18px; letter-spacing:.01em; }
.auto-capture-overlay small { margin-top:5px; color:rgba(255,255,255,.72); text-transform:uppercase; letter-spacing:.16em; font-size:10px; }
.auto-capture-overlay[data-state="captured"] .auto-capture-countdown { color:var(--accent); border-color:var(--accent); animation:none; }
.auto-capture-note { margin:-4px 17px 17px; padding:10px 12px; border:1px solid rgba(97,231,207,.18); border-radius:10px; color:var(--muted); background:rgba(97,231,207,.05); font-size:12px; line-height:1.45; }
@keyframes countdownPulse { from { transform:scale(.96); opacity:.88; } to { transform:scale(1.035); opacity:1; } }
.score-ring { --score:0; position:absolute; right:18px; bottom:18px; width:94px; height:94px; border-radius:50%; display:grid; place-content:center; text-align:center; background:radial-gradient(circle at center,#151620 58%,transparent 60%), conic-gradient(var(--accent) calc(var(--score)*1%), rgba(255,255,255,.12) 0); box-shadow:0 12px 40px rgba(0,0,0,.35); }
.score-ring strong { font-size:27px; line-height:1; }
.score-ring small { color:var(--muted); font-size:10px; }
.live-feedback { padding:14px 17px 0; }
.live-feedback strong { font-size:17px; }
.live-feedback p { color:var(--muted); margin:5px 0 0; line-height:1.4; font-size:13px; }
.camera-actions { display:flex; flex-wrap:wrap; gap:10px; padding:16px 17px 18px; }
.primary-btn,.accent-btn,.secondary-btn { border:0; border-radius:12px; padding:12px 16px; font-weight:800; }
.primary-btn { background:var(--text); color:#15151b; }
.accent-btn { background:var(--accent-2); color:#17161f; flex:1; min-width:180px; }
.secondary-btn { border:1px solid var(--line); background:transparent; color:var(--text); }
.panel { padding:19px; }
.panel h1,.panel h2 { margin:5px 0 8px; line-height:1.15; }
.panel h1 { font-size:27px; }
.panel h2 { font-size:19px; }
.panel p { color:var(--muted); line-height:1.55; font-size:14px; }
.field-label { display:block; color:var(--muted); font-size:12px; margin:12px 0 6px; }
select { width:100%; background:#101116; border:1px solid var(--line); color:var(--text); border-radius:12px; padding:12px 13px; }
.lesson-copy { padding:16px 0 5px; }
.lesson-copy h1 { font-family:Georgia,serif; font-size:34px; color:#f5e7ca; }
.reference-placeholder { display:flex; align-items:center; gap:13px; border:1px dashed rgba(255,255,255,.17); border-radius:16px; padding:14px; margin-top:10px; background:rgba(255,255,255,.025); }
.reference-symbol { width:58px; height:58px; display:grid; place-items:center; background:#11121a; border-radius:16px; font-size:30px; flex:0 0 auto; }
.reference-placeholder strong { font-size:13px; }
.reference-placeholder p { font-size:12px; margin:3px 0 0; }
.mudra-chips { display:flex; flex-wrap:wrap; gap:8px; margin:12px 0 18px; }
.mudra-chips span { background:#101116; border:1px solid var(--line); border-radius:999px; padding:8px 10px; color:#e9e5dc; font-size:12px; }
.privacy-box { border-left:3px solid var(--accent); padding:5px 0 5px 12px; }
.privacy-box p { margin:4px 0 0; font-size:12px; }
.result-card { padding:20px; }
.result-head { display:flex; justify-content:space-between; gap:18px; align-items:flex-start; padding-bottom:16px; border-bottom:1px solid var(--line); }
.result-head h2 { margin:4px 0; font-size:30px; }
.result-head p { color:var(--muted); margin:0; font-size:13px; }
.result-score-wrap { text-align:right; }
.result-score-wrap strong { display:block; font-size:36px; }
.result-score-wrap span { display:inline-block; margin-top:3px; border-radius:999px; padding:5px 8px; font-size:11px; background:rgba(255,255,255,.06); }
.result-score-wrap span[data-state="good"] { color:var(--accent); }
.result-score-wrap span[data-state="warn"] { color:#f3d18c; }
.result-score-wrap span[data-state="bad"] { color:#ff9d82; }
.result-grid { display:grid; grid-template-columns:minmax(220px,.85fr) 1.15fr; gap:18px; padding:18px 0; }
#snapshot { width:100%; border-radius:16px; max-height:300px; object-fit:cover; background:#090a0e; }
.corrections h3,.result-card h3 { margin:0 0 10px; font-size:14px; }
.corrections ol { margin:0; padding-left:20px; }
.corrections li { color:#ddd9d1; margin:0 0 9px; line-height:1.45; font-size:14px; }
.check-list { display:grid; gap:8px; }
.check-row { display:grid; grid-template-columns:minmax(105px,1fr) 1.5fr 34px; align-items:center; gap:10px; font-size:12px; }
.check-row span { color:var(--muted); }
.check-row strong { font-size:11px; text-align:right; }
.mini-bar { height:7px; background:#0f1015; border-radius:999px; overflow:hidden; }
.mini-bar i { display:block; height:100%; background:linear-gradient(90deg,var(--accent-2),var(--accent)); border-radius:999px; }
.history-list { display:grid; gap:8px; margin-top:10px; }
.history-row { display:flex; justify-content:space-between; align-items:center; padding:10px 0; border-top:1px solid var(--line); }
.history-row:first-child { border-top:0; }
.history-row strong,.history-row small { display:block; }
.history-row small { color:var(--muted); font-size:10px; margin-top:3px; }
.history-row > span { font-weight:800; color:var(--accent); }
.empty { color:var(--muted); font-size:12px; padding:10px 0; }
footer { text-align:center; color:#777582; font-size:11px; padding:0 18px 28px; }
[hidden] { display:none !important; }
@media (max-width: 960px) {
  .workspace { grid-template-columns:1fr; }
  .side-column { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .side-column .panel:first-child { grid-column:1/-1; }
}
@media (max-width: 640px) {
  .topbar { align-items:flex-start; padding:11px 13px; }
  .brand span { display:none; }
  .system-status { font-size:11px; max-width:42vw; }
  .app-shell { padding:13px 10px 35px; }
  .notice { margin-bottom:12px; }
  .mode-switch { display:flex; width:100%; }
  .mode-switch button { flex:1; font-size:12px; }
  .camera-card,.panel,.result-card { border-radius:18px; }
  .camera-stage { aspect-ratio:3/4; min-height:460px; }
  .camera-actions { display:grid; grid-template-columns:1fr 1fr; }
  .camera-actions .accent-btn { grid-column:1/-1; grid-row:1; }
  .score-ring { width:82px; height:82px; }
  .side-column { grid-template-columns:1fr; }
  .side-column .panel:first-child { grid-column:auto; }
  .result-grid { grid-template-columns:1fr; }
  .result-head { align-items:center; }
  .result-score-wrap strong { font-size:30px; }
}

/* Prototype A.1 additions */
.mode-switch-wide { flex-wrap:wrap; }
.mode-switch-wide button { min-width:112px; }
.text-input { width:100%; background:#101116; border:1px solid var(--line); color:var(--text); border-radius:12px; padding:12px 13px; resize:vertical; }
.text-input:focus, select:focus { outline:2px solid rgba(97,231,207,.25); border-color:rgba(97,231,207,.45); }
.capture-grid { display:grid; grid-template-columns:1fr 1fr; gap:22px; padding:18px 0; }
.consent-row { display:flex; gap:9px; align-items:flex-start; color:var(--muted); font-size:12px; line-height:1.4; margin-top:13px; }
.consent-row input { margin-top:2px; accent-color:var(--accent); }
.tag-grid { display:flex; flex-wrap:wrap; gap:8px; }
.tag-check { cursor:pointer; }
.tag-check input { position:absolute; opacity:0; pointer-events:none; }
.tag-check span { display:inline-block; padding:8px 10px; border:1px solid var(--line); border-radius:999px; background:#101116; color:var(--muted); font-size:11px; transition:.15s ease; }
.tag-check input:checked + span { color:#f6e6ca; background:rgba(227,180,93,.16); border-color:rgba(227,180,93,.45); box-shadow:inset 0 0 0 1px rgba(227,180,93,.1); }
.microcopy { color:var(--muted); font-size:11px !important; line-height:1.45; }
.teacher-actions { display:flex; flex-wrap:wrap; gap:10px; padding-top:2px; }
.success-btn,.danger-btn,.danger-outline-btn { border:0; border-radius:12px; padding:12px 15px; font-weight:800; }
.success-btn { background:var(--accent); color:#10211f; flex:1; }
.danger-btn { background:#ff8b72; color:#25100c; flex:1; }
.danger-outline-btn { background:transparent; color:#ff9d82; border:1px solid rgba(255,112,67,.35); }
.inline-message { min-height:20px; color:var(--muted); font-size:12px; padding-top:10px; }
.dataset-badge { min-width:86px; text-align:center; padding:8px 12px; border:1px solid rgba(97,231,207,.24); border-radius:14px; background:rgba(97,231,207,.06); }
.dataset-badge strong,.dataset-badge span { display:block; }
.dataset-badge strong { color:var(--accent); font-size:26px; line-height:1; }
.dataset-badge span { color:var(--muted); font-size:10px; margin-top:4px; }
.source-pill { display:inline-block; border-radius:999px; padding:6px 9px; background:rgba(255,255,255,.05); color:var(--muted); font-size:11px; margin-bottom:10px; border:1px solid var(--line); }
.source-pill[data-source="teacher"] { color:var(--accent); border-color:rgba(97,231,207,.3); background:rgba(97,231,207,.07); }
.progress-stat { display:flex; justify-content:space-between; gap:12px; align-items:end; margin-top:14px; }
.progress-stat strong { font-size:27px; }
.progress-stat span { color:var(--muted); font-size:10px; max-width:120px; text-align:right; }
.progress-track { height:8px; background:#101116; border-radius:999px; overflow:hidden; margin:8px 0 12px; }
.progress-track i { display:block; height:100%; border-radius:999px; background:linear-gradient(90deg,var(--accent-2),var(--accent)); }
.readiness { border-radius:10px; padding:9px 10px; font-size:11px; background:rgba(255,255,255,.04); color:var(--muted); }
.readiness[data-state="good"] { color:var(--accent); background:rgba(97,231,207,.07); }
.readiness[data-state="warn"] { color:#f3d18c; background:rgba(227,180,93,.07); }
.readiness[data-state="partial"] { color:#d6ccba; }
.mini-stats,.dataset-summary { display:grid; gap:8px; margin:12px 0; }
.mini-stats { grid-template-columns:1fr 1fr; }
.dataset-summary { grid-template-columns:repeat(3,1fr); }
.mini-stats > div,.dataset-summary > div { padding:10px; background:#101116; border:1px solid var(--line); border-radius:12px; text-align:center; }
.mini-stats strong,.mini-stats span,.dataset-summary strong,.dataset-summary span { display:block; }
.mini-stats strong,.dataset-summary strong { font-size:20px; }
.mini-stats span,.dataset-summary span { color:var(--muted); font-size:9px; margin-top:2px; text-transform:uppercase; letter-spacing:.07em; }
.full-btn { width:100%; margin-top:2px; }
.stack-actions { display:grid; gap:8px; margin-top:14px; }
.stack-actions .primary-btn,.stack-actions .secondary-btn,.stack-actions .danger-outline-btn { width:100%; text-align:center; }
.file-btn { display:block; cursor:pointer; }
.cal-stats-list { display:grid; gap:0; margin-top:14px; border-top:1px solid var(--line); }
.cal-stat-row { display:grid; grid-template-columns:minmax(90px,1fr) 55px 70px; gap:7px; align-items:center; padding:8px 0; border-bottom:1px solid var(--line); font-size:10px; }
.cal-stat-row span { color:var(--muted); }
.cal-stat-row strong { text-align:right; font-size:10px; }
.cal-stat-row small { text-align:right; color:#888793; }
@media (max-width: 640px) {
  .mode-switch-wide { display:grid; grid-template-columns:1fr 1fr; }
  .mode-switch-wide button { min-width:0; }
  .capture-grid { grid-template-columns:1fr; }
  .teacher-actions { display:grid; grid-template-columns:1fr; }
}
.dataset-sample-list { margin-top:14px; border-top:1px solid var(--line); }
.dataset-sample-row { display:grid; grid-template-columns:1fr auto; align-items:center; gap:8px; padding:9px 0; border-bottom:1px solid var(--line); }
.dataset-sample-row strong,.dataset-sample-row small { display:block; }
.dataset-sample-row strong { font-size:11px; }
.dataset-sample-row small { color:var(--muted); font-size:9px; margin-top:2px; }
.delete-mini { border:1px solid rgba(255,112,67,.28); color:#ff9d82; background:transparent; border-radius:9px; padding:6px 8px; font-size:10px; }

/* Prototype A.2 learned-model surfaces */
.model-rankings{display:grid;gap:10px;margin-top:16px}
.model-rank-row{display:grid;grid-template-columns:minmax(90px,1fr) 1.8fr 44px;gap:10px;align-items:center;font-size:.9rem}
.model-rank-row .mini-bar{height:7px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.model-rank-row .mini-bar i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#61e7cf,#d9a75b)}
.model-rank-row strong{text-align:right;font-variant-numeric:tabular-nums}
.model-meta{margin:.55rem 0 1rem;color:var(--muted,#a9a7b5);line-height:1.55}

/* Prototype A.3 student-learning layer */
.student-create-row{display:grid;grid-template-columns:1.4fr .8fr;gap:8px;margin:.45rem 0}.student-actions{display:flex;gap:8px;margin:.55rem 0 1rem}.student-actions>*{flex:1}.session-control-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:.6rem 0}.session-control-grid label{font-size:.78rem;color:var(--muted,#9ba3b0);display:grid;gap:5px}.session-control-grid select,.student-create-row select{width:100%;background:#0f1118;color:#f6f5fb;border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:.7rem}.session-summary-card{border-color:rgba(97,231,207,.24)}.session-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:1rem}.session-metrics>div{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);border-radius:14px;padding:12px}.session-metrics strong{display:block;font-size:1.35rem}.session-metrics span{font-size:.72rem;color:#9ba3b0;text-transform:uppercase;letter-spacing:.06em}.mudra-progress-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:10px 0 18px}.mudra-progress-card{appearance:none;text-align:left;background:rgba(255,255,255,.035);color:inherit;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:14px;cursor:pointer;display:grid;grid-template-columns:1fr auto;gap:6px}.mudra-progress-card:hover{border-color:rgba(97,231,207,.35)}.mudra-progress-card div{display:grid;gap:2px}.mudra-progress-card div span,.mudra-progress-card small{color:#9ba3b0;font-size:.74rem}.mudra-progress-card b{font-size:1.25rem}.mudra-progress-card small{grid-column:1/-1}.mudra-progress-card[data-state="mastered"]{border-color:rgba(97,231,207,.35);background:rgba(97,231,207,.06)}.mudra-progress-card[data-state="progressing"]{border-color:rgba(255,196,82,.26)}.progress-two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.trend-list{display:grid;gap:8px}.trend-row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.07)}.trend-row div{display:grid;gap:2px}.trend-row small{color:#9ba3b0;line-height:1.35}.trend-row>span{font-weight:700;color:#61e7cf}.curriculum-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:1rem}.curriculum-item{display:grid;grid-template-columns:32px 1fr auto;align-items:center;gap:10px;text-align:left;width:100%;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03);color:inherit;border-radius:13px;padding:11px}.curriculum-item>span{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.06);font-size:.75rem}.curriculum-item div{display:grid;gap:2px}.curriculum-item small{color:#8f97a6}.curriculum-item>b{font-size:.72rem;padding:.3rem .5rem;border-radius:99px;background:rgba(255,255,255,.06)}button.curriculum-item{cursor:pointer}.curriculum-item[data-status="active"]{border-color:rgba(97,231,207,.3);background:rgba(97,231,207,.05)}.curriculum-item[data-status="active"]>b{color:#61e7cf;background:rgba(97,231,207,.09)}.curriculum-item[data-status="planned"]{opacity:.72}.full-btn+ .full-btn{margin-top:8px}
@media(max-width:760px){.session-metrics{grid-template-columns:repeat(2,1fr)}.progress-two-col,.curriculum-grid,.mudra-progress-grid,.student-create-row{grid-template-columns:1fr}.session-control-grid{grid-template-columns:1fr 1fr}}

/* Prototype A.4 — teacher validation */
.dashboard-metrics{display:grid;grid-template-columns:repeat(6,minmax(110px,1fr));gap:10px;margin:18px 0}.dashboard-metrics>div{background:var(--surface-2,#211f2b);border:1px solid var(--border,#3b3848);border-radius:14px;padding:14px}.dashboard-metrics strong{display:block;font-size:1.35rem}.dashboard-metrics span{display:block;margin-top:4px;color:var(--muted,#aaa6b8);font-size:.78rem}.validation-grid{display:grid;grid-template-columns:repeat(5,minmax(130px,1fr));gap:10px;margin-bottom:20px}.validation-card{background:var(--surface-2,#211f2b);border:1px solid var(--border,#3b3848);border-radius:14px;padding:14px}.validation-card strong,.validation-card span{display:block}.validation-card span{color:var(--muted,#aaa6b8);font-size:.8rem;margin-top:5px}.table-wrap{overflow:auto;border:1px solid var(--border,#3b3848);border-radius:14px}.data-table{width:100%;border-collapse:collapse;min-width:640px}.data-table th,.data-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border,#3b3848);font-size:.86rem}.data-table th{color:var(--muted,#aaa6b8);font-weight:600;background:rgba(255,255,255,.025)}.data-table tr:last-child td{border-bottom:0}.review-filters{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0}.review-filters label{display:grid;gap:5px;color:var(--muted,#aaa6b8);font-size:.8rem}.review-layout{display:grid;grid-template-columns:minmax(240px,.8fr) minmax(380px,1.4fr);gap:18px}.review-attempt-list{display:grid;gap:8px;max-height:610px;overflow:auto;padding-right:3px}.review-attempt-btn{width:100%;border:1px solid var(--border,#3b3848);background:var(--surface-2,#211f2b);color:inherit;text-align:left;border-radius:12px;padding:11px;cursor:pointer}.review-attempt-btn[data-active="true"]{outline:2px solid var(--accent,#61e7cf)}.review-attempt-btn strong,.review-attempt-btn small{display:block}.review-attempt-btn small{color:var(--muted,#aaa6b8);margin-top:4px}.review-detail{border:1px solid var(--border,#3b3848);border-radius:14px;padding:16px;min-height:300px}
.review-evidence-grid{display:grid;grid-template-columns:minmax(240px,.9fr) minmax(300px,1.1fr);gap:16px;align-items:start}.teacher-review-photo{margin:0;border:1px solid var(--border,#3b3848);border-radius:14px;overflow:hidden;background:#111;min-height:260px;display:flex;flex-direction:column;justify-content:center}.teacher-review-photo img{display:block;width:100%;height:auto;max-height:520px;object-fit:contain;background:#08080b}.teacher-review-photo figcaption{padding:9px 11px;color:var(--muted,#aaa6b8);font-size:.76rem;background:var(--surface-2,#211f2b)}.review-evidence-details{min-width:0}.review-evidence-details h3{margin-top:4px}
.review-summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0}.review-summary-grid div{background:rgba(255,255,255,.035);padding:10px;border-radius:10px}.review-summary-grid strong,.review-summary-grid span{display:block}.review-summary-grid span{font-size:.76rem;color:var(--muted,#aaa6b8);margin-top:3px}.review-form{display:grid;gap:12px;margin-top:14px}.review-form label{display:grid;gap:5px;font-size:.82rem;color:var(--muted,#aaa6b8)}.review-form textarea{min-height:74px}.review-corrections{padding-left:20px}.review-corrections li{margin:6px 0}.quality-two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.quality-list{display:grid;gap:8px;margin-bottom:18px}.quality-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;border:1px solid var(--border,#3b3848);border-radius:11px;padding:10px 12px}.quality-row small{display:block;color:var(--muted,#aaa6b8);margin-top:3px}.attempt-feedback-box{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;margin-top:18px;border-top:1px solid var(--border,#3b3848);padding-top:16px}.attempt-feedback-box p{margin:4px 0 0;color:var(--muted,#aaa6b8);font-size:.82rem}.attempt-feedback-box>small{grid-column:1/-1;color:var(--muted,#aaa6b8)}.feedback-buttons{display:flex;gap:7px;flex-wrap:wrap}.feedback-buttons button{border:1px solid var(--border,#3b3848);background:var(--surface-2,#211f2b);color:inherit;border-radius:999px;padding:8px 11px;cursor:pointer}.feedback-buttons button[data-selected="true"]{border-color:var(--accent,#61e7cf);box-shadow:0 0 0 1px var(--accent,#61e7cf) inset}.metric-warn{color:#ffcf70}.metric-good{color:#61e7cf}.metric-bad{color:#ff7a70}
@media(max-width:1000px){.dashboard-metrics{grid-template-columns:repeat(3,1fr)}.validation-grid{grid-template-columns:repeat(2,1fr)}.review-layout,.quality-two-col,.review-evidence-grid{grid-template-columns:1fr}.review-attempt-list{max-height:260px}.teacher-review-photo{min-height:200px}}@media(max-width:620px){.dashboard-metrics{grid-template-columns:repeat(2,1fr)}.validation-grid,.review-filters{grid-template-columns:1fr}.attempt-feedback-box{grid-template-columns:1fr}.feedback-buttons{justify-content:flex-start}}

/* A.4.1 Reliability & Safety */
.capture-quality-pill{position:absolute;top:14px;left:14px;z-index:6;padding:.45rem .7rem;border-radius:999px;font-size:.78rem;font-weight:700;backdrop-filter:blur(8px);background:rgba(12,18,28,.72);border:1px solid rgba(255,255,255,.14);max-width:min(80%,360px)}
.capture-quality-pill[data-state="good"]{color:#55e6b9;border-color:rgba(85,230,185,.55)}
.capture-quality-pill[data-state="warn"]{color:#ffbd59;border-color:rgba(255,189,89,.55)}
.capture-quality-pill[data-state="bad"]{color:#ff7d89;border-color:rgba(255,93,108,.55)}
.capture-quality-pill[data-state="waiting"]{color:#d7dbe6}
.auto-capture-overlay[data-state="waiting"] .auto-capture-countdown{opacity:.55}
.correction-legend{display:flex;gap:1rem;flex-wrap:wrap;margin:.6rem 0 1rem;font-size:.8rem;color:var(--muted,#aab1bf)}
.correction-legend span{display:inline-flex;align-items:center;gap:.35rem}
.correction-legend i{display:inline-block;width:.7rem;height:.7rem;border-radius:50%;background:#55e6b9}
.correction-legend i[data-tone="warn"]{background:#ffbd59}.correction-legend i[data-tone="bad"]{background:#ff5d6c}
.modal-backdrop{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:1rem;background:rgba(6,8,13,.78);backdrop-filter:blur(8px)}
.modal-backdrop[hidden]{display:none}
.modal-card{width:min(430px,100%);background:#1b1b25;border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:1.2rem;box-shadow:0 24px 80px rgba(0,0,0,.45)}
.modal-card h2{margin:.3rem 0}.modal-card p{color:var(--muted,#aab1bf)}
.modal-card .field-label{display:block;margin-top:.85rem}.modal-card .text-input{margin-top:.35rem;width:100%}
#teacherLockStatus[data-state="unlocked"]{border-color:rgba(85,230,185,.35)}
#teacherLockStatus[data-state="locked"]{border-color:rgba(255,189,89,.35)}

/* A.4.2 Intelligent Coaching & Diagnostics */
.retry-comparison{margin-top:18px;border:1px solid rgba(97,231,207,.22);border-radius:16px;padding:14px;background:rgba(97,231,207,.035)}
.retry-head{display:flex;justify-content:space-between;gap:12px;align-items:start}.retry-head h3{margin:.2rem 0}.retry-head>strong{font-size:1.25rem;padding:.45rem .65rem;border-radius:10px;background:rgba(255,255,255,.05)}
.retry-head>strong[data-state="good"]{color:#55e6b9}.retry-head>strong[data-state="bad"]{color:#ff7d89}.retry-head>strong[data-state="warn"]{color:#ffbd59}
.before-after-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}.before-after-grid figure{margin:0;border:1px solid var(--border,#3b3848);border-radius:13px;overflow:hidden;background:#0c0d12}.before-after-grid img{display:block;width:100%;height:260px;object-fit:contain;background:#08090d}.before-after-grid figcaption{padding:8px 10px;color:var(--muted,#aaa6b8);font-size:.78rem;background:var(--surface-2,#211f2b)}
.retry-insight{display:grid;gap:4px;margin-top:12px;padding:11px 12px;border-radius:12px;background:rgba(255,255,255,.035);border-left:4px solid #ffbd59}.retry-insight[data-state="good"]{border-left-color:#55e6b9}.retry-insight[data-state="bad"]{border-left-color:#ff5d6c}.retry-insight span{color:var(--muted,#aaa6b8);font-size:.82rem}
.review-evidence-grid-a42{grid-template-columns:minmax(210px,.75fr) minmax(210px,.75fr) minmax(320px,1.2fr)}.reference-figure canvas{display:block;width:100%;height:auto;aspect-ratio:1/1;background:#10121a}.primary-review-correction{display:grid;gap:4px;border:1px solid rgba(255,189,89,.28);background:rgba(255,189,89,.055);border-radius:11px;padding:10px 12px}.primary-review-correction span{color:var(--muted,#aaa6b8);font-size:.84rem}
.diagnostic-grid{margin-top:18px}.diagnostic-card{border:1px solid var(--border,#3b3848);border-radius:14px;padding:14px;background:var(--surface-2,#211f2b);min-height:180px}.diagnostic-kv{display:grid;grid-template-columns:minmax(120px,.7fr) minmax(150px,1fr);gap:8px 12px;align-items:center}.diagnostic-kv span{color:var(--muted,#aaa6b8);font-size:.8rem}.diagnostic-kv strong{font-size:.9rem;overflow-wrap:anywhere}
@media(max-width:1100px){.review-evidence-grid-a42{grid-template-columns:1fr 1fr}.review-evidence-grid-a42 .review-evidence-details{grid-column:1/-1}}
@media(max-width:700px){.before-after-grid,.review-evidence-grid-a42{grid-template-columns:1fr}.review-evidence-grid-a42 .review-evidence-details{grid-column:auto}.before-after-grid img{height:220px}}

/* Prototype A.4.3 guided practice & engagement */
.live-guidance{margin:0 16px 14px;padding:12px 14px;border:1px solid rgba(255,255,255,.08);border-radius:14px;background:rgba(255,255,255,.028);display:grid;gap:10px}.live-guidance>div:first-child{display:flex;justify-content:space-between;gap:12px;align-items:baseline}.live-guidance small{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.65rem}.live-guidance[data-state="ready"]{border-color:rgba(97,231,207,.32);background:rgba(97,231,207,.055)}.live-guidance[data-state="adjust"]{border-color:rgba(255,189,89,.24)}.guidance-items{display:flex;gap:7px;flex-wrap:wrap}.guidance-items span{font-size:.73rem;color:#aab1bf;border:1px solid rgba(255,255,255,.08);border-radius:999px;padding:6px 9px;background:rgba(255,255,255,.025)}.guidance-items span[data-ok="true"]{color:#61e7cf;border-color:rgba(97,231,207,.22);background:rgba(97,231,207,.055)}.guidance-items i{font-style:normal;margin-right:5px}
.practice-level-row{display:grid;gap:6px;margin:.6rem 0}.practice-level-row p{font-size:.75rem;color:var(--muted);margin:0;line-height:1.45}.practice-reference-card{display:grid;grid-template-columns:118px 1fr;gap:13px;align-items:center;padding:12px;border:1px solid rgba(233,185,95,.2);border-radius:15px;background:rgba(233,185,95,.035);margin:.8rem 0}.practice-reference-card canvas{width:118px;height:118px;border-radius:12px;background:#10121a}.practice-reference-card p{font-size:.72rem;color:var(--muted);margin:4px 0 6px;line-height:1.35}.practice-reference-card ul{margin:0;padding-left:17px;color:#d7dbe3;font-size:.73rem;line-height:1.5}
.cue-toggle{display:flex;align-items:center;gap:10px;margin:.2rem 0 .7rem;padding:10px 11px;border:1px solid rgba(255,255,255,.08);border-radius:12px;background:rgba(255,255,255,.025);cursor:pointer}.cue-toggle input{width:18px;height:18px;accent-color:#61e7cf}.cue-toggle span{display:grid;gap:2px}.cue-toggle small{color:var(--muted);font-size:.7rem}.session-insights{display:grid;grid-template-columns:2fr 1fr 1fr;gap:10px;margin-top:10px}.session-insights>div{border:1px solid rgba(255,255,255,.07);border-radius:13px;background:rgba(255,255,255,.025);padding:11px;display:grid;gap:5px}.session-insights span{font-size:.67rem;color:var(--muted);text-transform:uppercase;letter-spacing:.055em}.session-insights strong{font-size:.92rem;line-height:1.25}.session-next{margin-top:10px;padding:11px 13px;border-left:3px solid #61e7cf;background:rgba(97,231,207,.045);border-radius:0 11px 11px 0}.session-next strong{font-size:.78rem}.session-next p{margin:4px 0 0;color:#c4cad3;font-size:.79rem;line-height:1.4}
@media(max-width:760px){.practice-reference-card{grid-template-columns:92px 1fr}.practice-reference-card canvas{width:92px;height:92px}.session-insights{grid-template-columns:1fr}.live-guidance>div:first-child{display:grid;gap:2px}}

/* Prototype A.4.4 — visual guidance + teacher intelligence */
.weakness-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.weakness-card{border:1px solid var(--border,#3b3848);border-radius:13px;padding:12px;background:var(--surface-2,#211f2b);display:grid;grid-template-columns:1fr auto;gap:4px 12px}.weakness-card div{display:grid;gap:2px}.weakness-card span,.weakness-card small{color:var(--muted,#aaa6b8);font-size:.74rem}.weakness-card b{font-size:1.2rem}.weakness-card small{grid-column:1/-1}.weakness-card[data-state="needs-focus"]{border-color:rgba(255,95,104,.42);background:rgba(255,95,104,.06)}.weakness-card[data-state="developing"]{border-color:rgba(255,196,82,.34)}.weakness-card[data-state="strong"]{border-color:rgba(97,231,207,.3);background:rgba(97,231,207,.04)}
.heatmap-wrap{overflow:auto;border:1px solid var(--border,#3b3848);border-radius:14px;margin-bottom:20px}.heat-table th small{display:block;color:var(--muted,#aaa6b8);font-weight:400;margin-top:3px}.heat-cell{text-align:center!important;background:rgba(255,104,105,var(--heat,.06));min-width:92px}.heat-cell strong{font-variant-numeric:tabular-nums}
.review-priority-head{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.review-priority-head b{min-width:30px;text-align:center;padding:3px 6px;border-radius:999px;background:rgba(255,255,255,.08);font-size:.73rem}.review-attempt-btn em{display:block;margin-top:5px;font-style:normal;font-size:.69rem;color:var(--muted,#aaa6b8)}.review-attempt-btn[data-priority="high"]{border-color:rgba(255,95,104,.5);background:rgba(255,95,104,.055)}.review-attempt-btn[data-priority="high"] .review-priority-head b{background:rgba(255,95,104,.16);color:#ff9aa0}.review-attempt-btn[data-priority="medium"]{border-color:rgba(255,196,82,.32)}.review-attempt-btn[data-priority="medium"] .review-priority-head b{background:rgba(255,196,82,.12);color:#ffd27a}
.markup-stage{position:relative;display:grid;place-items:center;background:#08080b;min-height:260px}.markup-stage img{grid-area:1/1}.markup-stage canvas{grid-area:1/1;width:100%;height:auto;max-height:520px;object-fit:contain;touch-action:none;cursor:crosshair;z-index:2}.markup-toolbar{display:flex;gap:6px;padding:8px 10px;background:var(--surface-2,#211f2b);border-top:1px solid var(--border,#3b3848);flex-wrap:wrap}.markup-toolbar button{border:1px solid var(--border,#3b3848);background:rgba(255,255,255,.035);color:inherit;border-radius:999px;padding:6px 10px;font-size:.72rem;cursor:pointer}.markup-toolbar button[data-active="true"]{border-color:#ff6b73;background:rgba(255,95,104,.12);color:#ff9aa0}
.cue-toggle input#referenceOverlayToggle:checked+span strong{color:#6ee7ff}
@media(max-width:760px){.weakness-grid{grid-template-columns:1fr 1fr}}@media(max-width:520px){.weakness-grid{grid-template-columns:1fr}}
.engagement-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:.65rem;margin:1rem 0}.engagement-strip>div,.achievement-card,.assignment-row{border:1px solid var(--line,#34323f);border-radius:12px;padding:.8rem;background:rgba(255,255,255,.025)}.engagement-strip strong{display:block;font-size:1.35rem}.engagement-strip span,.assignment-row small,.achievement-card small{opacity:.72}.achievement-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.65rem}.achievement-card[data-earned="false"]{opacity:.45}.achievement-card b{display:block;margin-bottom:.25rem}.assignment-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:.65rem;align-items:end;margin:1rem 0}.assignment-form label{display:grid;gap:.35rem}.assignment-note{grid-column:span 2}.assignment-list{display:grid;gap:.55rem}.assignment-row{display:flex;justify-content:space-between;gap:1rem;align-items:center}.assignment-row[data-complete="true"]{border-color:#427c5b}.ab-toolbar{display:flex;gap:.6rem;flex-wrap:wrap;margin:.75rem 0}.metric-card{border:1px solid var(--line,#34323f);border-radius:12px;padding:.8rem}.metric-card strong{display:block;font-size:1.2rem}
@media(max-width:680px){.engagement-strip{grid-template-columns:1fr 1fr}.assignment-note{grid-column:auto}.assignment-row{align-items:flex-start;flex-direction:column}}

/* A.4.6 adaptive coaching & correction templates */
.template-section{margin-top:1.35rem;padding-top:1.1rem;border-top:1px solid rgba(255,255,255,.08)}
.section-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}
.template-form{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.75rem;margin:.85rem 0 1rem}
.template-form label{display:flex;flex-direction:column;gap:.35rem;font-size:.78rem;color:var(--muted,#aab1bf)}
.template-form select,.template-form input,.template-form textarea{width:100%}
.template-form .template-text{grid-column:1/-1}
.template-form .student-actions{grid-column:1/-1;margin-top:0}
.template-list{display:grid;gap:.65rem}
.correction-template-row{display:flex;justify-content:space-between;gap:1rem;padding:.8rem;border:1px solid rgba(255,255,255,.08);border-radius:14px;background:rgba(255,255,255,.025)}
.correction-template-row>div:first-child{min-width:0}
.correction-template-row strong{display:block}.correction-template-row small{display:block;color:var(--muted,#aab1bf);margin:.18rem 0}.correction-template-row p{margin:.3rem 0 0;line-height:1.45}
.correction-template-row>div:last-child{display:flex;align-items:flex-start;gap:.4rem;flex-wrap:wrap}
.small-btn{padding:.45rem .65rem;font-size:.78rem}
.review-template-picker{display:grid;grid-template-columns:1fr auto;gap:.55rem;align-items:end;grid-column:1/-1}
.review-template-picker label{min-width:0}
.adaptive-language-note{margin-top:.45rem}
@media(max-width:900px){.template-form{grid-template-columns:1fr 1fr}.template-form .template-text,.template-form .student-actions{grid-column:1/-1}}
@media(max-width:560px){.template-form{grid-template-columns:1fr}.template-form .template-text,.template-form .student-actions{grid-column:1}.correction-template-row{flex-direction:column}.review-template-picker{grid-template-columns:1fr}}
.badge-pair{display:flex;gap:.6rem;flex-wrap:wrap}.collection-badge{border-color:rgba(233,185,95,.35);background:rgba(233,185,95,.06)}.collection-badge strong{color:#e9b95f}.curriculum-item[data-status="collecting"]{border-color:rgba(233,185,95,.34);background:rgba(233,185,95,.055)}.curriculum-item[data-status="collecting"]>b{color:#e9b95f;background:rgba(233,185,95,.1)}.expansion-readiness-section{margin-top:1.35rem;padding-top:1rem;border-top:1px solid rgba(255,255,255,.08)}.expansion-readiness-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:.65rem;margin-top:.8rem}.expansion-ready-card{border:1px solid rgba(255,255,255,.08);border-radius:13px;padding:.8rem;background:rgba(255,255,255,.025);display:grid;gap:.45rem}.expansion-ready-card[data-ready="true"]{border-color:rgba(97,231,207,.32);background:rgba(97,231,207,.05)}.expansion-ready-card header{display:flex;justify-content:space-between;gap:.6rem;align-items:center}.expansion-ready-card header b{font-size:.72rem;border-radius:99px;padding:.25rem .45rem;background:rgba(255,255,255,.06)}.expansion-ready-card ul{list-style:none;padding:0;margin:0;display:grid;gap:.25rem;font-size:.78rem;color:#aab1bf}.expansion-ready-card li[data-ok="true"]{color:#61e7cf}.expansion-stage-pill{margin-top:.55rem;display:inline-flex}.expansion-stage-pill[hidden]{display:none}

/* Prototype A.5.1 — local role-based login */
.topbar-right{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap;justify-content:flex-end}.auth-session-bar{display:flex;align-items:center;gap:.55rem;border:1px solid rgba(255,255,255,.1);border-radius:999px;padding:.35rem .45rem .35rem .7rem;background:rgba(255,255,255,.035)}.auth-session-bar[hidden]{display:none}.auth-session-bar span{font-weight:700;font-size:.78rem}.auth-session-bar small{color:var(--muted,#aab1bf);font-size:.69rem}.auth-session-bar .ghost-btn{padding:.42rem .7rem;font-size:.72rem}
.auth-gate{min-height:calc(100vh - 74px);display:grid;place-items:center;padding:2rem 1rem 3rem;background:radial-gradient(circle at 20% 15%,rgba(97,231,207,.08),transparent 34%),radial-gradient(circle at 80% 12%,rgba(233,185,95,.08),transparent 30%)}.auth-gate[hidden]{display:none}.auth-shell{width:min(940px,100%)}.auth-heading{text-align:center;margin-bottom:1.35rem}.auth-heading h1{margin:.3rem 0 .5rem;font-size:clamp(1.8rem,4vw,3rem)}.auth-heading p{max-width:680px;margin:0 auto;color:var(--muted,#aab1bf);line-height:1.55}.auth-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.auth-card{display:grid;gap:.72rem;border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:1.35rem;background:rgba(25,25,35,.92);box-shadow:0 18px 60px rgba(0,0,0,.18)}.auth-card h2{margin:0}.auth-card>p{margin:0;color:var(--muted,#aab1bf);line-height:1.45}.auth-card>small{color:var(--muted,#aab1bf);line-height:1.45}.auth-card label{display:grid;gap:.35rem;font-size:.78rem;color:var(--muted,#aab1bf)}.auth-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:1.4rem;background:rgba(97,231,207,.08);border:1px solid rgba(97,231,207,.15)}.teacher-auth-card .auth-icon{background:rgba(233,185,95,.08);border-color:rgba(233,185,95,.18)}.auth-privacy{margin-top:1rem}.student-code-display{font:700 1.05rem ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.07em;border:1px dashed rgba(97,231,207,.38);background:rgba(97,231,207,.055);border-radius:12px;padding:.75rem;text-align:center;color:#8bf0dd}.credential-pill{display:inline-flex;font:700 .72rem ui-monospace,SFMono-Regular,Menlo,monospace;padding:.24rem .45rem;border-radius:999px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.08)}.credential-status{font-size:.72rem}.credential-status[data-ready="true"]{color:#61e7cf}.credential-status[data-ready="false"]{color:#ffcf70}.student-login-actions{display:flex;gap:.35rem;flex-wrap:wrap}.student-login-actions button{white-space:nowrap}.role-hidden{display:none!important}
@media(max-width:760px){.auth-grid{grid-template-columns:1fr}.topbar-right{width:100%;justify-content:space-between}.auth-session-bar{max-width:100%;flex-wrap:wrap}.auth-session-bar span{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}

/* A.6.1 assignment launch controls */
.assignment-actions{display:flex;align-items:center;gap:.55rem;flex-wrap:wrap;justify-content:flex-end}.assignment-start-btn{padding:.48rem .72rem;font-size:.75rem;white-space:nowrap}.assignment-student-row>div:first-child{min-width:0}.assignment-student-row small{display:block;margin-top:.2rem}@media(max-width:680px){.assignment-actions{width:100%;justify-content:space-between}.assignment-start-btn{flex:1}}

/* Version A.6 landing-page refinement */
body[data-auth-screen="true"] .topbar-right{display:none!important}
.auth-role-choice{display:grid;grid-template-columns:1fr 1fr;gap:1rem;max-width:820px;margin:0 auto}
.auth-role-choice[hidden],.auth-login-page[hidden]{display:none!important}
.role-choice-card{appearance:none;width:100%;border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:1.35rem;background:rgba(25,25,35,.92);color:inherit;text-align:left;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:1rem;cursor:pointer;box-shadow:0 18px 60px rgba(0,0,0,.18);transition:transform .16s ease,border-color .16s ease,background .16s ease}
.role-choice-card:hover,.role-choice-card:focus-visible{transform:translateY(-2px);border-color:rgba(97,231,207,.4);background:rgba(31,31,43,.96);outline:none}
.teacher-role-card:hover,.teacher-role-card:focus-visible{border-color:rgba(233,185,95,.42)}
.role-choice-icon{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;font-size:1.45rem;background:rgba(97,231,207,.08);border:1px solid rgba(97,231,207,.15)}
.teacher-role-card .role-choice-icon{background:rgba(233,185,95,.08);border-color:rgba(233,185,95,.18)}
.role-choice-card span:nth-child(2){display:grid;gap:.25rem}.role-choice-card strong{font-size:1.03rem}.role-choice-card small{color:var(--muted,#aab1bf);line-height:1.4}.role-choice-card b{font-size:1.25rem;color:var(--muted,#aab1bf)}
.auth-login-page{max-width:520px;margin:0 auto}.auth-single-card{width:100%}.auth-back-btn{border:0;background:transparent;color:var(--muted,#aab1bf);padding:.35rem .1rem .8rem;cursor:pointer;font:inherit}.auth-back-btn:hover{color:inherit}
@media(max-width:680px){.auth-role-choice{grid-template-columns:1fr}}

/* Trinalaya login identity */
.trinalaya-wordmark{font-size:clamp(2.35rem,7vw,4.7rem);font-weight:700;line-height:1.05;letter-spacing:.035em;margin:0 0 .25rem;color:var(--text,#f5f3f8);text-shadow:0 8px 30px rgba(0,0,0,.18)}
.trinalaya-arts-line{font-size:clamp(.95rem,2.3vw,1.25rem);letter-spacing:.16em;color:#d9b86c;margin:0 0 1rem;line-height:1.35}
@media(max-width:520px){.trinalaya-wordmark{font-size:clamp(2rem,12vw,3.2rem)}.trinalaya-arts-line{font-size:.92rem;letter-spacing:.1em}}

/* Calibration User role */
.calibration-role-card .role-choice-icon{filter:saturate(.9)}
.calibration-user-admin{margin-top:28px;padding-top:22px;border-top:1px solid var(--line,#2d3140)}
.calibration-review-image-wrap{position:relative;min-height:220px;border-radius:16px;overflow:hidden;background:#0f1118;margin-bottom:16px;display:grid;place-items:center}
.calibration-review-image-wrap img{display:block;width:100%;max-height:520px;object-fit:contain;background:#0f1118}
body[data-role="calibration"] .practice-level-row,
body[data-role="calibration"] .adaptive-language-note{display:none!important}
body[data-role="calibration"] #flipBtn{display:inline-flex}