@import "https://fonts.googleapis.com/css2?family=Geist:wght@300;400;450;500;550;600;650;700;800&family=Geist+Mono:wght@400;500;600;700&display=swap";pre code.hljs{padding:1em;display:block;overflow-x:auto}code.hljs{padding:3px 5px}.hljs{color:#adbac7;background:#22272e}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#f47067}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#dcbdfb}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#6cb6ff}.hljs-regexp,.hljs-string,.hljs-meta 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.12s;display:flex}.tier-tab:hover{color:#000;background:var(--bg-hover)}.tier-tab.active{color:#fff;background:#09090b;border-color:#09090b}.project-grid{grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:18px;display:grid}.project-card{border:1px solid var(--border-default);border-radius:var(--radius-lg);cursor:pointer;box-shadow:var(--shadow-card);background:#fff;flex-direction:column;justify-content:space-between;padding:24px;transition:all .2s;display:flex}.project-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.project-tier-badge{text-transform:uppercase;letter-spacing:.05em;border-radius:4px;margin-bottom:10px;padding:3px 9px;font-family:Geist Mono,monospace;font-size:.72rem;font-weight:750;display:inline-flex}.project-tier-badge.beginner{background:var(--tier-beginner-bg);color:var(--tier-beginner);border:1px solid #16a34a40}.project-tier-badge.mid{background:var(--tier-mid-bg);color:var(--tier-mid);border:1px solid #2563eb40}.project-tier-badge.advanced{background:var(--tier-advanced-bg);color:var(--tier-advanced);border:1px solid #7c3aed40}.project-tier-badge.expert{background:var(--tier-expert-bg);color:var(--tier-expert);border:1px solid #ea580c40}.project-card-title{color:var(--text-primary);margin-bottom:8px;font-size:1.15rem;font-weight:750;line-height:1.38}.project-card-proves{color:var(--text-secondary);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin-bottom:16px;font-size:.88rem;line-height:1.6;display:-webkit-box;overflow:hidden}.project-card-stack{flex-wrap:wrap;gap:5px;margin-bottom:14px;display:flex}.stack-tag{color:#09090b;background:var(--bg-subtle);border:1px solid var(--border-default);border-radius:4px;padding:3px 9px;font-family:Geist Mono,monospace;font-size:.75rem;font-weight:600}.project-card-tasks-count{color:var(--text-tertiary);border-top:1px solid var(--border-subtle);padding-top:12px;font-family:Geist Mono,monospace;font-size:.78rem;font-weight:550}.project-detail{max-width:900px;margin:0 auto;padding:40px 28px}.project-back-btn{border:1px solid var(--border-default);color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;background:#fff;align-items:center;gap:6px;margin-bottom:22px;padding:7px 16px;font-family:inherit;font-size:.88rem;font-weight:600;transition:all .12s;display:inline-flex}.project-back-btn:hover{background:var(--bg-hover);color:#000}.project-field{margin-bottom:26px}.project-field-label{text-transform:uppercase;letter-spacing:.06em;color:var(--text-tertiary);margin-bottom:8px;font-family:Geist Mono,monospace;font-size:.8rem;font-weight:700}.project-field-value{color:var(--text-primary);background:var(--bg-subtle);border:1px solid var(--border-default);border-radius:var(--radius-md);padding:16px 18px;font-size:.98rem;line-height:1.7}.task-list{border:1px solid var(--border-default);border-radius:var(--radius-lg);background:#fff;list-style:none;overflow:hidden}.task-item{border-bottom:1px solid var(--border-subtle);color:var(--text-primary);cursor:pointer;align-items:flex-start;gap:14px;padding:14px 20px;font-size:.95rem;line-height:1.55;transition:background .12s;display:flex}.task-item:last-child{border-bottom:none}.task-item:hover{background:var(--bg-hover)}.task-item.completed{color:var(--text-muted);background:#fafafa;text-decoration:line-through}.task-checkbox{border:1.5px solid var(--border-strong);background:#fff;border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;margin-top:1px;font-size:.8rem;transition:all .12s;display:flex}.task-checkbox.checked{background:var(--accent-emerald);border-color:var(--accent-emerald);color:#fff}.file-tree{background:var(--bg-code);color:#f1f5f9;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid #1e293b;padding:20px 24px;font-family:Geist Mono,monospace;font-size:.88rem;line-height:1.75}.file-tree-item{cursor:pointer;color:#cbd5e1;align-items:center;gap:8px;padding:4px 0;transition:color .12s;display:flex}.file-tree-item:hover{color:#fff}.file-tree-icon{text-align:center;width:18px;font-size:.85rem}.file-tree-icon.folder{color:#fbbf24}.file-tree-icon.file{color:#94a3b8}.file-tree-children{border-left:1px solid #ffffff24;margin-left:9px;padding-left:22px}.file-tree-marker{border-radius:4px;margin-left:10px;padding:2px 8px;font-size:.72rem;font-weight:750}.file-tree-marker.start{color:#4ade80;background:#16a34a59;border:1px solid #4ade8080}.file-tree-marker.done{color:#a5b4fc;background:#4f46e559;border:1px solid #a5b4fc80}.search-results-group{border:1px solid var(--border-default);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);background:#fff;margin-bottom:34px;overflow:hidden}.search-results-doc-title{text-transform:uppercase;letter-spacing:.05em;color:var(--accent-primary);background:var(--bg-subtle);border-bottom:1px solid var(--border-default);padding:14px 20px;font-family:Geist Mono,monospace;font-size:.82rem;font-weight:700}.search-result-item{border-bottom:1px solid var(--border-subtle);cursor:pointer;padding:16px 20px;transition:background .12s}.search-result-item:last-child{border-bottom:none}.search-result-item:hover{background:var(--bg-hover)}.search-result-chapter{color:var(--text-primary);align-items:center;gap:8px;font-size:.98rem;font-weight:700;display:flex}.search-result-snippet{color:var(--text-secondary);margin-top:5px;font-size:.88rem;line-height:1.55}.search-result-type{color:var(--text-tertiary);background:var(--bg-subtle);border:1px solid var(--border-default);border-radius:3px;padding:1px 7px;font-family:Geist Mono,monospace;font-size:.72rem;font-weight:600}.loading-spinner{color:var(--text-tertiary);justify-content:center;align-items:center;padding:60px;font-size:.94rem;display:flex}.spinner{border:2px solid var(--border-default);border-top-color:#09090b;border-radius:50%;width:24px;height:24px;margin-right:12px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;background:var(--bg-subtle);border:1px dashed var(--border-strong);border-radius:var(--radius-xl);color:var(--text-tertiary);padding:64px 24px}.empty-state-icon{margin-bottom:12px;font-size:3rem}.empty-state-text{color:var(--text-secondary);font-size:.98rem}@media (width<=1024px){.right-sidebar{display:none}.reader-content{padding:32px 28px}}@media (width<=768px){.sidebar{display:none}.doc-grid,.tool-grid,.project-grid{grid-template-columns:1fr}.search-container{width:180px}.header-nav{display:none}.reader-content{padding:22px 18px}}