:root{--a2-bg: #f4f7fb;--a2-surface: #ffffff;--a2-surface-2: #f1f5fa;--a2-ink: #1e293b;--a2-ink-2: #475569;--a2-ink-3: #64748b;--a2-line: #dbe3ee;--a2-line-strong: #b8c5d6;--a2-primary: #0277bd;--a2-primary-ink: #01579b;--a2-primary-soft: rgba(2, 119, 189, .12);--a2-ring: rgba(14, 165, 233, .24);--a2-success: #15803d;--a2-success-soft: rgba(22, 163, 74, .1);--a2-error: #dc2626;--a2-error-soft: rgba(220, 38, 38, .08);--a2-submit: linear-gradient(135deg, #0284c7 0%, #0277bd 50%, #0369a1 100%);--a2-submit-ink: #ffffff;--a2-submit-glow: rgba(2, 132, 199, .55);--a2-warn: #b45309;--a2-shadow: 0 1px 2px rgba(15, 29, 42, .04), 0 12px 32px -12px rgba(15, 29, 42, .14)}:root[data-theme=dark]{--a2-bg: #0b111e;--a2-surface: #111a2e;--a2-surface-2: #16213a;--a2-ink: #e2e8f0;--a2-ink-2: #94a3b8;--a2-ink-3: #7c8ba1;--a2-line: #22314d;--a2-line-strong: #33466b;--a2-primary: #00d2ff;--a2-primary-ink: #67e8f9;--a2-primary-soft: rgba(0, 210, 255, .12);--a2-ring: rgba(0, 210, 255, .28);--a2-success: #7ddc84;--a2-success-soft: rgba(125, 220, 132, .12);--a2-error: #ff8f87;--a2-error-soft: rgba(255, 110, 100, .12);--a2-submit: linear-gradient(135deg, #00d2ff 0%, #00a6d6 100%);--a2-submit-ink: #04121f;--a2-submit-glow: rgba(0, 210, 255, .45);--a2-warn: #f5b25b;--a2-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 16px 40px -16px rgba(0, 0, 0, .6);color-scheme:dark}.auth2-body{margin:0;min-height:100vh;min-height:100dvh;background:var(--a2-bg);color:var(--a2-ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased}.auth2-shell{min-height:100vh;min-height:100dvh;display:grid;grid-template-columns:minmax(0,1fr)}@media (min-width: 1024px){.auth2-shell{grid-template-columns:minmax(0,.95fr) minmax(0,1fr)}}.auth2-brand{display:none;position:relative;overflow:hidden;color:#e8f4fb;background:radial-gradient(120% 80% at 85% 10%,rgba(56,189,248,.22),transparent 60%),radial-gradient(90% 70% at 10% 100%,rgba(2,132,199,.28),transparent 60%),linear-gradient(160deg,#06324a,#042436 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rgba(125,211,252,.25);color:#bae6fd;font-size:11.5px;font-weight:700;letter-spacing:.12em}.auth2-brand__title{margin:20px 0 24px;font-family:var(--font-headline);font-size:clamp(30px,2.6vw,40px);line-height:1.15;font-weight:800;letter-spacing:-.02em;color:#fff}.auth2-brand__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;font-size:15.5px;color:#e8f4fbdb}.auth2-brand__list li{display:flex;align-items:center;gap:12px}.auth2-check{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:#38bdf82e url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237dd3fc' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 12px no-repeat;border:1px solid rgba(125,211,252,.35)}.auth2-brand__stats{display:flex;gap:36px;margin:0}.auth2-brand__stats div{padding-left:16px;border-left:2px solid rgba(56,189,248,.5)}.auth2-brand__stats 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900px){.auth2-brand__inner{padding:28px 44px 32px}}@media (min-width: 560px){.auth2-panel--wide .auth2-rules{display:flex;flex-wrap:wrap;gap:6px 16px}}@media (min-width: 768px) and (max-height: 900px){.auth2-card--compact .auth2-title{font-size:24px;margin-bottom:4px}.auth2-card--compact .auth2-subtitle{font-size:14px}.auth2-card--compact .auth2-alert{margin-bottom:12px;padding:8px 12px;font-size:13px;line-height:1.45}}@media (min-width: 768px) and (max-height: 800px){.auth2-card--compact{padding-top:18px;padding-bottom:16px}.auth2-card--compact .auth2-head{margin-bottom:10px}.auth2-card--compact .auth2-title{font-size:22px;margin-bottom:2px}.auth2-card--compact .auth2-subtitle{font-size:13px}.auth2-card--compact .auth2-form,.auth2-card--compact .auth2-row{gap:10px}.auth2-card--compact .auth2-field{gap:4px}.auth2-card--compact .auth2-input{height:40px}.auth2-card--compact .auth2-submit{height:44px}.auth2-card--compact .auth2-alert{margin-bottom:10px;padding:7px 11px;font-size:12.5px}.auth2-card--compact .auth2-foot{margin-top:10px;padding-top:10px}.auth2-pw-strength{gap:6px}.auth2-role{gap:4px}.auth2-role legend{margin-bottom:4px}.auth2-role__options{padding:3px}.auth2-role__option span{height:34px;font-size:14px}}@media (min-width: 768px) and (max-height: 680px){.auth2-card--compact{padding-top:14px;padding-bottom:12px}.auth2-card--compact .auth2-subtitle{display:none}.auth2-card--compact .auth2-input{height:38px}.auth2-card--compact .auth2-submit{height:42px}.auth2-card--compact .auth2-foot{margin-top:8px;padding-top:8px}}.auth2-subjects{display:grid;grid-template-columns:1fr 1fr;gap:6px;max-height:248px;overflow-y:auto;padding:6px;border-radius:12px;border:1px solid var(--a2-line-strong);background:var(--a2-surface-2)}.auth2-subject{display:flex;align-items:flex-start;gap:8px;padding:8px 10px;border-radius:9px;font-size:13px;line-height:1.3;cursor:pointer}.auth2-subject:hover{background:#94a3b81f}.auth2-subject input{margin-top:2px;flex:none}.auth2-subject strong{font-weight:700;margin-right:2px}.auth2-subjects__group{grid-column:1 / -1;margin:6px 0 0;font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--color-on-surface-variant, #64748b)}.auth2-subjects__group:first-child{margin-top:0}.auth2-subject__program{display:inline-block;margin-right:4px;padding:0 5px;border-radius:4px;font-size:10px;font-weight:800;letter-spacing:.04em;line-height:16px;color:#fff;background:#0284c7;vertical-align:1px}.auth2-subject__program--ppl{background:#4f46e5}@media (max-width: 480px){.auth2-subjects{grid-template-columns:1fr}}.auth2-role{margin:0;padding:0;border:0;min-width:0;display:flex;flex-direction:column;gap:7px}.auth2-role legend{padding:0;margin-bottom:7px}.auth2-role__options{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:12px;border:1px solid var(--a2-line-strong);background:var(--a2-surface-2)}.auth2-role__option{position:relative;cursor:pointer}.auth2-role__option input{position:absolute;opacity:0;pointer-events:none}.auth2-role__option span{display:flex;align-items:center;justify-content:center;height:40px;border-radius:9px;font-size:14.5px;font-weight:600;color:var(--a2-ink-2);transition:background .15s ease,color .15s ease,box-shadow .15s ease}.auth2-role__option input:checked+span{background:var(--a2-surface);color:var(--a2-primary);box-shadow:0 1px 3px #0f1d2a1f}.auth2-role__option input:focus-visible+span{box-shadow:0 0 0 3px var(--a2-ring)}.auth2-select{appearance:none;-webkit-appearance:none;padding-right:40px;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236b7781' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}.auth2-field-note{margin:0;font-size:12.5px;line-height:1.45;color:var(--a2-ink-3)}[data-teacher-only][hidden],[data-student-only][hidden]{display:none}.auth2-gate-badge{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;padding:5px 12px;border-radius:999px;font-size:11.5px;font-weight:700;letter-spacing:.08em;color:var(--a2-primary-ink);background:var(--a2-primary-soft)}.auth2-gate-badge--warn{color:var(--a2-warn);background:color-mix(in srgb,var(--a2-warn) 12%,transparent)}.auth2-gate-badge__dot{width:7px;height:7px;border-radius:50%;background:var(--a2-primary);animation:auth2-gate-pulse 1.8s ease-in-out infinite}@keyframes auth2-gate-pulse{0%,to{opacity:1}50%{opacity:.35}}.auth2-countdown{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:20px}.auth2-countdown__cell{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 6px 12px;border-radius:12px;border:1px solid var(--a2-line);background:var(--a2-surface-2)}.auth2-countdown__num{font:800 28px/1 var(--font-heading, "Inter", sans-serif);color:var(--a2-ink);font-variant-numeric:tabular-nums}.auth2-countdown__label{font-size:10.5px;font-weight:700;letter-spacing:.08em;color:var(--a2-ink-3)}.auth2-gate-note{margin:0 0 20px;font-size:14px;line-height:1.5;color:var(--a2-ink-2)}.auth2-gate-actions{display:flex;flex-direction:column;gap:10px}.auth2-gate-badge--warn .auth2-gate-badge__dot{background:var(--a2-warn)}.auth2-gate-actions a.auth2-submit{text-decoration:none}.auth2-ghost-btn{width:100%;height:48px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--a2-line-strong);border-radius:12px;background:var(--a2-surface);color:var(--a2-ink);font:600 15px/1 var(--font-body);cursor:pointer;transition:border-color .15s ease,background .15s ease}a.auth2-ghost-btn{text-decoration:none}.auth2-gate-resend{margin:-8px 0 20px}.auth2-ghost-btn:hover{border-color:var(--a2-ink-3);background:var(--a2-surface-2)}.auth2-gate-actions .auth2-submit svg,.auth2-ghost-btn svg{width:17px;height:17px}@media (max-width: 420px){.auth2-countdown{gap:6px}.auth2-countdown__num{font-size:22px}}@media (prefers-reduced-motion: reduce){.auth2-gate-badge__dot{animation:none}}:root:not([data-theme=dark]) .auth2-body{background:var(--sky-page, var(--a2-bg))}:root[data-theme=dark] .auth2-body{background:radial-gradient(1100px 520px at 70% -10%,rgba(0,210,255,.08),transparent 70%),var(--a2-bg)}