:root{--bg: #fff8eb;--surface: #ffffff;--surface2: #fff1d6;--border: #f0d7a8;--text: #2c2416;--muted: #7a6b52;--accent: #f2a10a;--accent-dim: #d48900;--success: #2a9d5c;--warning: #e89a00;--danger: #d64535;--radius: 12px;--shadow: 0 8px 24px rgba(242, 161, 10, .16)}*{box-sizing:border-box;margin:0;padding:0}html{font-family:Inter,system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%}body,#root{min-height:100vh;background:var(--bg)}a{color:var(--accent);text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:16px;padding:14px 24px;border-bottom:1px solid var(--border);background:var(--surface)}.topbar-start{min-width:0}.topbar-brand{font-weight:700;font-size:1rem;line-height:1.2}.topbar-school{color:var(--muted);font-size:.82rem;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar-nav{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}.nav-link{display:inline-flex;align-items:center;padding:8px 14px;border-radius:999px;color:var(--muted);border:1px solid transparent;font-size:.9rem;font-weight:500;white-space:nowrap;transition:background .15s,color .15s,border-color .15s}.nav-link:hover{color:var(--text);background:var(--surface2)}.nav-link.active{color:#fff;background:var(--accent);border-color:var(--accent)}.topbar-user{display:flex;align-items:center;justify-content:flex-end;gap:12px;min-width:0}.topbar-profile{display:flex;flex-direction:column;align-items:flex-end;min-width:0}.topbar-name{font-size:.9rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px}.topbar-role{font-size:.75rem;color:var(--muted)}.main-content{flex:1;width:100%;max-width:960px;margin:0 auto;padding:28px 24px 40px}.page-header{margin-bottom:20px}.page-title{font-size:1.6rem;font-weight:700;line-height:1.2;margin-bottom:6px}.page-subtitle{color:var(--muted);font-size:.95rem}.back-link{display:inline-block;margin-bottom:10px;font-size:.9rem;color:var(--muted)}.back-link:hover{color:var(--text)}.text-muted{color:var(--muted)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.card+.card{margin-top:16px}.card-title{font-size:1rem;font-weight:600;margin-bottom:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:8px;border:none;cursor:pointer;font-weight:500;white-space:nowrap;transition:background .15s,opacity .15s}.btn-sm{padding:7px 12px;font-size:.85rem}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dim)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.btn-ghost:hover{background:var(--surface2);color:var(--text)}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:.85rem;color:var(--muted);margin-bottom:6px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--surface2);color:var(--text)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:2px solid var(--accent);border-color:transparent}.error-banner{background:#fde8e6;border:1px solid #f5c2bc;color:#d64535;padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:.9rem}.info-banner{background:#fff1d6;border:1px solid #f0d7a8;color:#7a6b52;padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:.9rem}.progress-ring-wrap{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.progress-ring{width:88px;height:88px;flex-shrink:0;border-radius:50%;background:conic-gradient(var(--accent) calc(var(--pct) * 1%),var(--surface2) 0);display:grid;place-items:center}.progress-ring-inner{width:68px;height:68px;border-radius:50%;background:var(--surface);display:grid;place-items:center;font-weight:700;font-size:1.1rem}.lesson-list{list-style:none;display:flex;flex-direction:column;gap:8px}.lesson-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;background:var(--surface2);border-radius:8px;border:1px solid var(--border)}.lesson-item.locked{opacity:.55}.lesson-item-title{flex:1;min-width:0;line-height:1.35}.lesson-item-main{flex:1;min-width:0}.lesson-item-meta{font-size:.85rem;color:var(--muted);margin-top:4px}.lesson-item-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-shrink:0;flex-wrap:wrap}.status-pill{font-size:.75rem;padding:4px 10px;border-radius:999px;font-weight:500;white-space:nowrap}.status-available{background:#ffe7b3;color:#9a6200}.status-watching{background:#fff1d0;color:#9a6200}.status-passed{background:#d9f5e5;color:#1d7a45}.status-locked{background:#f0e6d4;color:var(--muted)}.status-homework{background:#fff1d0;color:#9a6200}.video-shell{background:#000;border-radius:var(--radius);overflow:hidden;margin-bottom:16px}.video-shell video{width:100%;display:block;max-height:420px;object-fit:contain}.video-controls{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.watch-bar{height:6px;background:var(--surface2);border-radius:3px;overflow:hidden;margin:12px 0}.watch-bar-fill{height:100%;background:var(--accent);transition:width .3s}.question-block{padding:16px;background:var(--surface2);border-radius:8px;margin-bottom:12px}.option-label{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;border:1px solid transparent;margin-top:8px}.option-label:hover{background:var(--surface)}.option-label.selected{border-color:var(--accent);background:#fff1d6}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top,rgba(242,161,10,.22),transparent 40%),var(--bg)}.login-card{width:100%;max-width:420px}.login-card h1{font-size:1.75rem;margin-bottom:8px}.login-card p{color:var(--muted);margin-bottom:24px;font-size:.9rem}.nav-tabs{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}.nav-tab{padding:8px 16px;border-radius:8px;background:var(--surface2);color:var(--muted);border:1px solid var(--border);cursor:pointer}.nav-tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:16px}.stat-box{background:var(--surface2);padding:14px;border-radius:8px;text-align:center}.stat-box .value{font-size:1.4rem;font-weight:700}.stat-box .label{font-size:.75rem;color:var(--muted);margin-top:4px}.tabbar{display:none}.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}.role-pick{display:flex;flex-direction:column;gap:12px;width:100%;max-width:440px}.role-pick-card{display:flex;align-items:center;gap:14px;padding:14px;background:var(--surface);border:1px solid var(--border);border-radius:16px;color:var(--text);min-height:88px}.role-pick-card img{width:56px;height:56px;border-radius:14px;object-fit:cover}.role-pick-card strong{display:block;font-size:1.05rem}.role-pick-card span{display:block;color:var(--muted);font-size:.85rem;margin-top:2px}.mobile-home{width:100%;max-width:440px;padding:12px 4px 32px}.mobile-home h1{font-size:1.8rem;margin-bottom:6px}.mobile-home>p{color:var(--muted);margin-bottom:20px}@media(max-width:860px){html,body{min-height:100dvh}.app-shell{min-height:100dvh;padding-bottom:calc(64px + env(safe-area-inset-bottom,0px))}.topbar{position:sticky;top:0;z-index:20;grid-template-columns:1fr auto;gap:8px;padding:10px 14px;padding-top:calc(10px + env(safe-area-inset-top,0px))}.topbar-nav{display:none}.topbar-user{gap:8px}.topbar-profile{align-items:flex-end}.topbar-name{max-width:120px;font-size:.82rem}.tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;justify-content:space-around;gap:4px;padding:8px 8px calc(8px + env(safe-area-inset-bottom,0px));background:var(--surface);border-top:1px solid var(--border)}.tabbar .nav-link{flex:1;justify-content:center;min-height:44px;padding:8px 6px;font-size:.78rem}.main-content{padding:16px 14px 24px;max-width:none}.page-title{font-size:1.35rem}.card{padding:16px}.btn{min-height:44px;padding:12px 16px}.btn-row{flex-direction:column}.btn-row .btn{width:100%}.lesson-item{flex-direction:column;align-items:stretch;gap:10px}.lesson-item-actions{justify-content:stretch}.lesson-item-actions .btn{flex:1}.progress-ring-wrap{flex-direction:column;align-items:center;text-align:center}.video-controls{flex-direction:column}.video-controls .btn{width:100%}.ticket-head{flex-direction:column}.ticket-timer{align-self:stretch;text-align:center}.ticket-nav{grid-template-columns:repeat(5,minmax(0,1fr))}.option-label{width:100%;text-align:left;min-height:48px}.form-group input,.form-group select,.form-group textarea{font-size:16px;min-height:44px}.login-page{padding:48px 16px 16px;align-items:start}.login-card{max-width:none}}.ticket-image{width:100%;max-width:560px;display:block;margin:0 auto}.ticket-image-plate{background:#fff;border-radius:10px;padding:12px;margin:0 0 16px}.ticket-qnum{font-size:.8rem;color:var(--muted);margin-bottom:6px;font-weight:600}.ticket-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.ticket-timer{font-size:1.4rem;font-weight:700;font-variant-numeric:tabular-nums;padding:8px 14px;border-radius:8px;background:var(--surface2);border:1px solid var(--border)}.ticket-timer.danger{color:#d64535;border-color:#f5c2bc}.ticket-nav{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:6px;margin-bottom:16px}.ticket-nav-cell{height:36px;border-radius:8px;border:1px solid var(--border);background:var(--surface2);color:var(--muted);cursor:pointer;font-weight:600}.ticket-nav-cell.current{border-color:var(--accent);color:var(--text);background:#ffe7b3}.ticket-nav-cell.done{background:#ffe7b3;color:#9a6200}.ticket-nav-cell.ok{background:#d9f5e5;color:#1d7a45}.ticket-nav-cell.bad{background:#fde8e6;color:#d64535}.option-label{color:var(--text);background:var(--surface2);-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%}.option-label.correct{border-color:var(--success);background:#34c7591f}.option-label.wrong{border-color:var(--danger);background:#ff453a1f}.print-right{text-align:right;margin-bottom:24px}.print-title{text-align:center;margin:16px 0 20px;font-size:1.15rem}.print-sheet{background:#fff;color:#111;padding:24px;margin:24px 0;border:1px solid var(--border)}.print-table{width:100%;border-collapse:collapse;font-size:.85rem;margin:16px 0}.print-table th,.print-table td{border:1px solid #333;padding:6px 8px;text-align:left;color:#111}@media print{.no-print,.topbar,.tabbar{display:none!important}.app-shell{padding:0;background:#fff}.main-content{max-width:none;padding:0}.print-sheet{border:0;page-break-after:always;margin:0}}.option-letter{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--surface);border:1px solid var(--border);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem}