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var(--border);background:#fff}.assistant-quick-btn{padding:4px 10px;border:1px solid var(--border);border-radius:999px;background:#f1f5f9;font-size:12px;cursor:pointer;font-family:inherit;color:var(--text)}.assistant-quick-btn:hover:not(:disabled){background:#e2e8f0}.assistant-input-row{display:flex;gap:8px;padding:12px;border-top:1px solid var(--border);background:#fff}.assistant-input-row input{flex:1;padding:8px 12px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:14px}.assistant-mic-btn{width:40px;height:40px;border:1px solid var(--border);border-radius:50%;background:#f8fafc;font-size:18px;cursor:pointer;flex-shrink:0}.assistant-mic-btn.listening{background:#fef2f2;border-color:#f87171;animation:assistant-pulse 1s infinite}@keyframes assistant-pulse{0%,to{box-shadow:0 0 #f8717166}50%{box-shadow:0 0 0 8px #f8717100}}.podium-page .assistant-panel{background:#0f3d38;border-color:#2dd4bf33}.podium-page .assistant-messages{background:#0c2e2a}.podium-page .assistant-msg-assistant .assistant-bubble{background:#134e4a;border-color:#2dd4bf26;color:#ecfdf5}.podium-page .assistant-msg-user .assistant-bubble{background:var(--primary)}.podium-page .assistant-quick-actions,.podium-page .assistant-input-row{background:#0f3d38;border-color:#2dd4bf1f}.podium-page .assistant-quick-btn{background:#ffffff14;border-color:#ffffff26;color:#e2e8f0}.podium-page .assistant-input-row input{background:#0c2e2a;border-color:#2dd4bf33;color:#fff}.empty-state{text-align:center;padding:56px 24px;color:var(--text-secondary)}.empty-state:before{content:"";display:block;width:52px;height:52px;margin:0 auto 14px;border-radius:14px;background:linear-gradient(135deg,var(--bg-subtle) 0%,var(--primary-light) 100%);opacity:.75}.ranking-list{list-style:none}.ranking-item{display:flex;align-items:center;padding:10px 0;border-bottom:1px solid var(--border)}.ranking-item:last-child{border-bottom:none}.rank-num{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;margin-right:12px;background:var(--bg);color:var(--text-secondary)}.rank-num.top{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff}.rank-name{flex:1;font-size:14px}.rank-score{font-weight:600;color:var(--primary-dark)}.login-hint{margin-top:24px;padding-top:20px;border-top:1px solid var(--border);font-size:12px;color:var(--text-secondary);line-height:1.8}.login-hint strong{color:var(--text)}.position-tags{display:flex;flex-wrap:wrap;gap:4px}.position-checkboxes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.position-check{display:flex;align-items:center;gap:10px;font-size:14px;cursor:pointer;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);transition:background var(--transition),border-color var(--transition),box-shadow var(--transition),transform var(--transition);-webkit-user-select:none;user-select:none;min-height:44px;background:#fff}.position-check:hover{background:var(--bg);border-color:var(--primary-muted)}.position-check:has(input:checked){background:var(--primary-light);border-color:var(--primary);box-shadow:0 0 0 1px #0d948814}.position-check:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.position-check input[type=checkbox]{pointer-events:auto}.homework-list{display:flex;flex-direction:column;gap:16px}.homework-item{padding:16px 20px;border:1px solid var(--card-border);border-radius:var(--radius);background:var(--card)}.homework-item.overdue{border-color:#fca5a5;background:#fef2f2}.homework-item h3{font-size:16px;margin:8px 0}.homework-item p{color:var(--text-secondary);font-size:14px;line-height:1.7}.homework-item-header{display:flex;justify-content:space-between;align-items:center}.homework-due{font-size:13px;color:var(--text-secondary)}.homework-meta{font-size:12px;color:var(--text-secondary);margin-top:10px}.podium-screen-label{text-align:center;padding:10px;margin-bottom:16px;background:var(--bg);border-radius:8px;font-weight:600;color:var(--text-secondary)}.podium-screen-label.dark{background:#ffffff1a;color:#ffffffb3;margin:0 0 20px}.seat-grid-editor,.seat-grid-podium{display:grid;gap:8px;max-width:900px;margin:0 auto}.seat-cell{padding:8px;border:1px solid var(--border);border-radius:8px;background:#fff}.seat-cell.aisle{background:var(--bg);opacity:.5}.seat-cell select{width:100%;font-size:12px;margin-bottom:4px}.aisle-toggle{font-size:11px;color:var(--text-secondary);display:flex;align-items:center;gap:4px}.podium-login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#0c2e2a,#134e4a,#0f766e)}.podium-page{min-height:100vh;background:linear-gradient(180deg,#0c2e2a,#0f3d38,#134e4a);color:#fff;padding:24px 32px}.podium-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.1)}.podium-header h1{font-size:22px}.podium-header p{opacity:.7;font-size:14px;margin-top:4px}.podium-clock{text-align:center}.podium-time{font-size:32px;font-weight:700;font-variant-numeric:tabular-nums}.seat-podium{aspect-ratio:1.2;border:2px solid rgba(255,255,255,.15);border-radius:10px;background:#ffffff0d;color:#fff;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:8px;transition:all .15s;font-family:inherit}.seat-podium.occupied.clickable:hover{background:#2dd4bf59;border-color:var(--sidebar-accent);transform:scale(1.03)}.seat-podium.occupied:not(.clickable){cursor:default}.seat-podium.empty,.seat-podium.aisle{opacity:.3;cursor:default}.seat-podium.aisle{background:transparent;border-style:dashed}.seat-name{font-size:14px;font-weight:600}.seat-no{font-size:11px;opacity:.7;margin-top:2px}.seat-empty-label{font-size:12px;opacity:.5}.podium-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000}.podium-modal{background:#0f3d38;border-radius:16px;padding:28px;width:100%;max-width:480px;border:1px solid rgba(45,212,191,.2)}.podium-modal h3{font-size:20px;margin-bottom:8px}.podium-modal-student{font-size:16px;color:var(--sidebar-accent);margin-bottom:20px}.violation-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}.violation-btn{padding:12px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:#ffffff0d;color:#fff;cursor:pointer;display:flex;justify-content:space-between;font-family:inherit;font-size:14px}.violation-btn.active{background:#dc2626;border-color:#dc2626}.violation-score{color:#fca5a5;font-weight:600}.podium-note-input{width:100%;padding:10px 12px;border:1px solid rgba(255,255,255,.2);border-radius:8px;background:#0003;color:#fff;margin-bottom:16px;font-family:inherit}@media (max-width: 768px){.sidebar{display:none}.main-content{margin-left:0;padding:16px}.form-row{grid-template-columns:1fr}}