.sticky-bar{z-index:20;background:var(--bg);border-bottom:1px solid var(--border);align-items:center;gap:16px;padding:10px 48px;display:flex;position:sticky;top:0}.sticky-bar-label{color:var(--text-muted);white-space:nowrap;font-size:12px}.sticky-progress-wrap{background:var(--bg-card);border-radius:3px;flex:1;height:6px;overflow:hidden}.sticky-progress-fill{background:linear-gradient(90deg, var(--l1), var(--l2), var(--l3), var(--l4), var(--gold));border-radius:3px;height:100%;transition:width .5s}.sticky-pct{color:var(--gold);white-space:nowrap;text-align:right;min-width:40px;font-size:13px;font-weight:700}.breadcrumb{color:var(--text-muted);border-bottom:1px solid var(--border);padding:14px 48px;font-size:13px}.breadcrumb a{color:var(--text-muted);text-decoration:none}.breadcrumb a:hover{color:var(--gold)}.breadcrumb span{margin:0 8px}.legend{border-bottom:1px solid var(--border);background:var(--bg-secondary);flex-wrap:wrap;gap:16px;padding:12px 48px;display:flex}.legend-item{color:var(--text-muted);align-items:center;gap:6px;font-size:11px;display:flex}.leg-dot{border-radius:2px;flex-shrink:0;width:8px;height:8px}.phase{border-radius:var(--radius);border:1px solid var(--border);margin:0 48px 12px;overflow:hidden}.phase-header{cursor:pointer;transition:var(--transition);user-select:none;background:var(--bg-card);align-items:center;gap:14px;padding:14px 20px;display:flex}.phase-header:hover{background:var(--bg-card-hover)}.phase-icon{flex-shrink:0;font-size:20px}.phase-info{flex:1;min-width:0}.phase-ten{margin-bottom:2px;font-size:15px;font-weight:800}.phase-phu{color:var(--text-muted);font-size:11px;line-height:1.4}.phase-right{flex-shrink:0;align-items:center;gap:12px;display:flex}.phase-time-badge{color:var(--text-muted);background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;padding:2px 10px;font-size:11px}.phase-mini-prog{align-items:center;gap:8px;display:flex}.phase-prog-bar{background:var(--bg-secondary);border-radius:3px;width:80px;height:5px;overflow:hidden}.phase-prog-fill{border-radius:3px;height:100%;transition:width .4s}.phase-prog-pct{text-align:right;min-width:30px;font-size:11px;font-weight:700}.phase-chevron{color:var(--text-muted);font-size:12px;transition:transform .25s}.phase.collapsed .phase-chevron{transform:rotate(-90deg)}.phase-items{border-top:1px solid var(--border)}.phase.collapsed .phase-items{display:none}.item-row{border-bottom:1px solid var(--border);align-items:flex-start;gap:14px;padding:12px 20px;transition:background .15s;display:flex}.item-row:last-child{border-bottom:none}.item-row:hover{background:var(--bg-card-hover)}.item-row.xong{background:#d4af370a}.item-row.chua-co{opacity:.5;pointer-events:none}.item-cb-wrap{flex-shrink:0;padding-top:1px}.item-cb{border:2px solid var(--border);cursor:pointer;width:18px;height:18px;transition:var(--transition);border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.item-cb:hover{border-color:var(--gold)}.item-row.xong .item-cb{background:var(--gold);border-color:var(--gold)}.item-cb:after{content:"";border:2px solid #000;border-top:none;border-left:none;width:5px;height:9px;display:none;transform:rotate(45deg)translate(-1px,-1px)}.item-row.xong .item-cb:after{display:block}.item-body{flex:1;min-width:0}.item-ten{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:3px;font-size:14px;font-weight:700;display:flex}.item-ten a{color:var(--text);text-decoration:none}.item-ten a:hover{color:var(--gold)}.item-mo-ta{color:var(--text-muted);font-size:12px;line-height:1.5}.item-badges{flex-wrap:wrap;gap:6px;margin-top:6px;display:flex}.badge-loai{letter-spacing:.5px;text-transform:uppercase;border-radius:8px;padding:2px 8px;font-size:10px;font-weight:700}.badge-time{color:var(--text-muted);background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:1px 8px;font-size:11px}.badge-chua-co{color:var(--text-muted);border:1px solid var(--border);background:#6464641f;border-radius:8px;padding:2px 8px;font-size:10px;font-weight:700}.item-action{flex-direction:column;flex-shrink:0;align-items:flex-end;gap:6px;padding-top:1px;display:flex}.btn-quiz{border-radius:var(--radius-sm);border:1px solid var(--border);color:var(--text-muted);white-space:nowrap;transition:var(--transition);background:0 0;padding:4px 10px;font-size:11px;text-decoration:none}.btn-quiz:hover{border-color:var(--gold);color:var(--gold)}.btn-quiz.dat{border-color:var(--l2);color:var(--l2)}.btn-quiz.chua-dat{color:#e74c3c;border-color:#e74c3c}.btn-doc{border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border);color:var(--text-muted);cursor:pointer;transition:var(--transition);white-space:nowrap;align-items:center;gap:5px;padding:5px 12px;font-size:12px;text-decoration:none;display:inline-flex}.btn-doc:hover{border-color:var(--gold);color:var(--gold)}.btn-doc-disabled{opacity:.35;cursor:not-allowed;pointer-events:none}.tools-grid{grid-template-columns:1fr 1fr;gap:10px;padding:12px 20px;display:grid}.tool-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px}.tool-card-top{align-items:center;gap:8px;margin-bottom:6px;display:flex}.tool-icon{font-size:18px}.tool-ten{font-size:13px;font-weight:700}.tool-mo-ta{color:var(--text-muted);margin-bottom:10px;font-size:12px;line-height:1.5}.reset-wrap{text-align:center;flex-wrap:wrap;justify-content:center;gap:12px;padding:20px 48px;display:flex}.btn-reset{color:var(--text-muted);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);background:0 0;padding:6px 16px;font-size:12px}.btn-reset:hover{color:#e74c3c;border-color:#e74c3c}.btn-secondary-link{color:var(--text-muted);border:1px solid var(--border);border-radius:var(--radius-sm);transition:var(--transition);padding:6px 16px;font-size:12px;text-decoration:none}.btn-secondary-link:hover{border-color:var(--gold);color:var(--gold)}@media (width<=900px){.sticky-bar,.breadcrumb,.legend,.phase,.reset-wrap{padding-left:16px;padding-right:16px}.phase{margin-left:16px;margin-right:16px}.phase-right{display:none}.tools-grid{grid-template-columns:1fr}}