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16px;border-radius:10px;font-size:.9rem;font-weight:600}.st-modal-status.completed{background:#00ff8826;color:var(--accent)}.st-modal-status.locked{background:#ffffff0d;color:var(--text-secondary)}.st-modal-xp{display:flex;align-items:center;justify-content:center;gap:6px;color:var(--accent);font-weight:600;margin-bottom:16px;font-size:1rem}.st-modal-btn{width:100%;padding:14px;border:none;border-radius:12px;color:#fff;font-size:1.1rem;font-weight:700;cursor:pointer;letter-spacing:.5px}.st-celebration{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2000;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}.st-celebration-icon{font-size:4rem}.st-celebration-xp{font-size:1.8rem;font-weight:800;color:var(--accent);text-shadow:0 0 20px rgba(0,255,136,.6)}.st-loading{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:500;color:var(--text-secondary)}@media(max-width:600px){.skill-tree-page{padding:12px}.st-header-title h1{font-size:1.5rem}.st-subjects-grid{grid-template-columns:1fr}.st-grades-grid{grid-template-columns:1fr 1fr}.step-node{width:54px;height:54px}.step-node .step-icon{font-size:1.3rem}.st-unit-banner{width:92%}.st-modal{max-width:100%;border-radius:16px 16px 0 0}}@media(max-width:400px){.st-grades-grid{grid-template-columns:1fr}.step-node{width:48px;height:48px}}.dt-page{padding:20px;max-width:600px;margin:0 auto;min-height:100vh}.dt-header,.dt-result-header{display:flex;flex-direction:column;gap:16px;margin-bottom:24px}.dt-header-title{text-align:center}.dt-header-title h1{font-family:Oswald,sans-serif;font-size:2rem;color:#fff;margin:8px 0 4px}.dt-header-title p,.dt-result-header p{color:var(--text-secondary);font-size:.9rem}.dt-result-header h1{color:#fff;font-family:Oswald,sans-serif;font-size:1.5rem;text-align:center}.dt-admin-btn{display:block;margin:0 auto 20px;padding:12px 28px;background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:700;cursor:pointer}.dt-empty-state,.dt-empty{text-align:center;padding:50px 20px;color:var(--text-secondary)}.dt-empty-state h2{color:#fff;margin:16px 0 8px}.dt-countdown-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:20px;padding:30px 24px;text-align:center;margin-bottom:20px;position:relative;overflow:hidden}.dt-countdown-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#f59e0b,#ef4444,#8b5cf6)}.dt-countdown-card h2{color:#fff;font-size:1.3rem;margin:0 0 6px}.dt-tournament-title{color:var(--text-secondary);font-size:.9rem;margin-bottom:20px}.dt-countdown{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:20px}.dt-cd-unit{display:flex;flex-direction:column;align-items:center}.dt-cd-num{font-family:Oswald,sans-serif;font-size:2.5rem;font-weight:700;color:#fff;background:#ffffff0f;border-radius:12px;padding:8px 16px;min-width:60px}.dt-cd-label{font-size:.7rem;color:var(--text-secondary);margin-top:4px;text-transform:uppercase}.dt-cd-sep{font-size:2rem;color:var(--text-secondary);font-weight:700}.dt-info-row{display:flex;justify-content:center;gap:20px;color:var(--text-secondary);font-size:.85rem}.dt-info-row span{display:flex;align-items:center;gap:5px}.dt-active-card{background:var(--glass);border:1px solid rgba(239,68,68,.3);border-radius:20px;padding:30px 24px;text-align:center;margin-bottom:20px;position:relative;overflow:hidden}.dt-active-pulse{position:absolute;top:12px;right:12px;width:12px;height:12px;background:#ef4444;border-radius:50%;animation:dt-pulse 1.5s ease-in-out infinite}@keyframes dt-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.4)}}.dt-active-card h2{color:#ef4444;font-size:1.2rem;margin:0 0 6px}.dt-rewards{display:flex;justify-content:center;gap:16px;margin:16px 0;font-size:.9rem;color:#fbbf24}.dt-start-btn{width:100%;padding:16px;background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none;border-radius:14px;font-size:1.2rem;font-weight:800;cursor:pointer;letter-spacing:1px;margin-top:8px}.dt-already,.dt-ended{text-align:center;padding:30px;background:var(--glass);border:1px solid var(--glass-border);border-radius:16px;color:var(--text-secondary);margin-bottom:16px}.dt-result-btn,.dt-history-btn{display:block;width:100%;padding:12px;background:var(--glass);border:1px solid var(--glass-border);border-radius:12px;color:#fff;font-size:.95rem;font-weight:600;cursor:pointer;margin-top:12px;text-align:center}.dt-quiz-header{margin-bottom:20px}.dt-quiz-progress-bar{width:100%;height:8px;background:#ffffff14;border-radius:4px;overflow:hidden;margin-bottom:8px}.dt-quiz-progress-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#8b5cf6);border-radius:4px}.dt-quiz-meta{display:flex;justify-content:space-between;color:var(--text-secondary);font-size:.85rem}.dt-quiz-timer{display:flex;align-items:center;gap:4px;color:#f59e0b;font-weight:600}.dt-quiz-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:16px;padding:24px;margin-bottom:16px}.dt-quiz-question{color:#fff;font-size:1.05rem;line-height:1.6;margin-bottom:20px}.dt-quiz-options{display:flex;flex-direction:column;gap:10px}.dt-quiz-opt{display:flex;align-items:center;gap:12px;padding:14px 16px;background:#ffffff0a;border:2px solid rgba(255,255,255,.08);border-radius:12px;color:#fff;font-size:.95rem;cursor:pointer;transition:all .2s;text-align:left}.dt-quiz-opt:hover{border-color:#3b82f666}.dt-quiz-opt.selected{border-color:#3b82f6;background:#3b82f626}.dt-opt-letter{width:30px;height:30px;border-radius:50%;background:#ffffff14;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex-shrink:0}.dt-quiz-opt.selected .dt-opt-letter{background:#3b82f6}.dt-next-btn{width:100%;padding:14px;background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border:none;border-radius:12px;font-size:1.05rem;font-weight:700;cursor:pointer}.dt-next-btn:disabled{opacity:.4;cursor:default}.dt-result-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:20px;padding:30px;text-align:center;margin-bottom:24px}.dt-result-score{margin-bottom:8px}.dt-result-big{font-family:Oswald,sans-serif;font-size:4rem;font-weight:700;color:var(--accent)}.dt-result-total{font-size:1.5rem;color:var(--text-secondary)}.dt-result-pct{font-size:1.2rem;font-weight:600;color:#fff;margin-bottom:16px}.dt-result-stats{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}.dt-stat{display:flex;align-items:center;gap:5px;color:var(--text-secondary);font-size:.9rem}.dt-stat.bonus{color:#fbbf24;font-weight:700}.dt-podium-section{margin-bottom:20px}.dt-podium-section h3{color:#fff;display:flex;align-items:center;gap:8px;margin-bottom:12px}.dt-podium{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}.dt-podium-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--glass);border:1px solid var(--glass-border);border-radius:12px}.dt-podium-item.rank-1{border-color:#ffd7004d;background:#ffd7000d}.dt-podium-item.rank-2{border-color:#c0c0c04d}.dt-podium-item.rank-3{border-color:#cd7f324d}.dt-podium-item.me{border-color:#3b82f666;background:#3b82f614}.dt-podium-medal{font-size:1.3rem}.dt-podium-name{flex:1;color:#fff;font-weight:600}.dt-podium-score{color:var(--text-secondary);font-size:.85rem}.dt-full-list{display:flex;flex-direction:column;gap:4px}.dt-list-row{display:flex;align-items:center;gap:10px;padding:8px 14px;border-radius:8px}.dt-list-row.me{background:#3b82f614}.dt-list-rank{color:var(--text-secondary);width:30px;font-size:.85rem}.dt-list-name{flex:1;color:#fff;font-size:.9rem}.dt-list-score{color:var(--text-secondary);font-size:.8rem}.dt-history-list{display:flex;flex-direction:column;gap:10px}.dt-history-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:12px;padding:14px 16px}.dt-history-card.played{border-color:#0f83}.dt-hc-top{display:flex;justify-content:space-between;margin-bottom:6px}.dt-hc-title{color:#fff;font-weight:600}.dt-hc-date{color:var(--text-secondary);font-size:.8rem}.dt-hc-bottom{display:flex;gap:14px;color:var(--text-secondary);font-size:.8rem}.dt-hc-bottom span{display:flex;align-items:center;gap:4px}.dt-hc-score{color:var(--accent);font-weight:600}.dt-hc-rank{color:#fbbf24;font-weight:600}.dt-loading{text-align:center;padding:40px;color:var(--text-secondary)}.dt-error{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:10px;color:#ef4444;font-size:.9rem;margin-bottom:16px}@media(max-width:500px){.dt-cd-num{font-size:2rem;min-width:50px;padding:6px 12px}.dt-result-big{font-size:3rem}.dt-quiz-question{font-size:.95rem}}.dt-tournament-list{display:flex;flex-direction:column;gap:14px;margin-bottom:16px}.dt-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:16px;padding:20px;position:relative;overflow:hidden}.dt-card-active{border-color:#ef444459}.dt-card-scheduled{border-color:#f59e0b40}.dt-card-ended{opacity:.6}.dt-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px}.dt-card-title{color:#fff;font-size:1.1rem;font-weight:700;margin:0 0 4px}.dt-card-type{font-size:.75rem;color:var(--text-secondary)}.dt-card-status{font-size:.8rem;font-weight:600;padding:3px 10px;border-radius:20px;white-space:nowrap}.status-active{background:#ef444426;color:#ef4444}.status-scheduled{background:#f59e0b26;color:#f59e0b}.status-ended{background:#64646426;color:#888}.dt-card-info{display:flex;flex-wrap:wrap;gap:12px;color:var(--text-secondary);font-size:.8rem;margin-bottom:12px}.dt-card-info span{display:flex;align-items:center;gap:4px}.dt-card-countdown{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:10px;font-family:Oswald,sans-serif;font-size:1.5rem;color:#f59e0b;letter-spacing:2px}.dt-cd-txt{font-family:inherit;font-size:.8rem;color:var(--text-secondary);letter-spacing:0}.dt-modal-overlay{position:fixed;inset:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.dt-modal{background:var(--surface);border:1px solid var(--glass-border);border-radius:20px;width:100%;max-width:500px;max-height:90vh;overflow-y:auto;padding:24px}.dt-modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.dt-modal-head h2{color:#fff;font-size:1.3rem;margin:0}.dt-modal-close{background:#ffffff0f;border:none;border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-secondary)}.dt-form{display:flex;flex-direction:column;gap:16px}.dt-form label{display:flex;flex-direction:column;gap:6px}.dt-form label>span{font-size:.8rem;color:var(--text-secondary);font-weight:600}.dt-form input,.dt-form select{padding:10px 14px;background:#ffffff0d;border:1px solid var(--glass-border);border-radius:10px;color:#fff;font-size:.95rem}.dt-form input:focus,.dt-form select:focus{border-color:var(--accent);outline:none}.dt-form input[type=range]{padding:0;height:6px;accent-color:var(--accent)}.dt-form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.dt-type-btns{display:flex;gap:8px}.dt-type-btn{flex:1;padding:8px;background:#ffffff0a;border:2px solid rgba(255,255,255,.08);border-radius:10px;color:var(--text-secondary);cursor:pointer;font-size:.8rem;transition:all .2s}.dt-type-btn.active{border-color:var(--accent);color:#fff;background:#3b82f61f}.dt-create-submit{width:100%;padding:14px;background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border:none;border-radius:12px;font-size:1.05rem;font-weight:700;cursor:pointer;margin-top:4px}.dt-create-submit:disabled{opacity:.5;cursor:default}@media(max-width:500px){.dt-form-row{grid-template-columns:1fr}.dt-type-btns{flex-direction:column}.dt-card-countdown{font-size:1.2rem}}