:root{--bg-primary: #0f1117;--bg-secondary: #161922;--bg-surface: #1c1f2e;--bg-surface-hover: #242838;--accent-primary: #6c8cff;--accent-secondary: #4ecdc4;--accent-warm: #ff6b6b;--accent-amber: #fbbf24;--text-primary: #e8eaf0;--text-secondary: #9ca3b8;--text-muted: #5f6580;--border-subtle: #2a2e3f;--border-active: #6c8cff33}*{box-sizing:border-box}body{font-family:DM Sans,sans-serif;background:var(--bg-primary);color:var(--text-primary);margin:0}.font-serif{font-family:"Source Serif 4",serif}.font-mono{font-family:JetBrains Mono,monospace}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-sidebar{width:260px;min-width:260px;background:var(--bg-secondary);border-right:1px solid var(--border-subtle);padding:20px 12px;height:100vh;overflow-y:auto;position:sticky;top:0;flex-shrink:0;transition:transform .25s ease,width .25s ease,min-width .25s ease,padding .25s ease,border-color .25s ease}@media(min-width:1025px){.app-sidebar:not(.open){transform:translate(-100%);width:0;min-width:0;padding:0;overflow:hidden;border-right-color:transparent}}@media(max-width:1024px){.app-sidebar{position:fixed;top:0;left:0;z-index:200;transform:translate(-100%)}.app-sidebar.open{transform:translate(0)}}.sidebar-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:199;display:none}@media(max-width:1024px){.sidebar-backdrop{display:block}}.sidebar-header{display:flex;align-items:center;gap:8px;margin-bottom:20px;padding:0 4px}.sidebar-toggle{background:none;border:1px solid var(--border-subtle);color:var(--text-muted);border-radius:4px;cursor:pointer;padding:2px 8px;font-size:16px;transition:color .2s;flex-shrink:0}.sidebar-toggle:hover{color:var(--text-primary)}.sidebar-reopen{position:fixed;top:16px;left:16px;z-index:100;background:var(--bg-secondary);border:1px solid var(--border-subtle);color:var(--text-muted);border-radius:6px;cursor:pointer;padding:4px 10px;font-size:18px;line-height:1;transition:color .2s}.sidebar-reopen:hover{color:var(--text-primary)}@media(max-width:1024px){.sidebar-reopen{display:none}}.mobile-hamburger{position:fixed;top:12px;left:12px;z-index:150;background:var(--bg-secondary);border:1px solid var(--border-subtle);color:var(--text-primary);border-radius:6px;padding:6px 10px;cursor:pointer;font-size:18px;line-height:1}@media(min-width:1025px){.mobile-hamburger{display:none}}.sidebar-link{display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;color:var(--text-secondary);transition:all .2s;border:1px solid transparent}.sidebar-link:hover{background:var(--bg-surface);color:var(--text-primary)}.sidebar-link.active{background:var(--bg-surface);color:var(--accent-primary);border-color:var(--border-active)}.sidebar-subnav{margin:2px 0 6px 8px;padding-left:10px;border-left:2px solid var(--border-active)}.sidebar-sublink{display:flex;align-items:center;gap:8px;padding:5px 10px;border-radius:6px;font-size:12px;cursor:pointer;color:var(--text-muted);transition:all .15s}.sidebar-sublink:hover{color:var(--text-primary);background:var(--bg-surface)}.sidebar-sublink.active{color:var(--accent-secondary);font-weight:600}.content-card{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:12px;padding:24px}.code-block{background:#0d0f16;border:1px solid var(--border-subtle);border-radius:8px;padding:16px;overflow-x:auto;font-family:JetBrains Mono,monospace;font-size:13px;line-height:1.6;color:#c9d1d9}.code-block .kw{color:#ff7b72}.code-block .fn{color:#d2a8ff}.code-block .str{color:#a5d6ff}.code-block .cmt{color:#5f6580;font-style:italic}.code-block .num{color:#79c0ff}.code-block .dec{color:#ffa657}.tag-green{background:#10b98120;color:#34d399;border:1px solid #10b98130}.tag-red{background:#ef444420;color:#f87171;border:1px solid #ef444430}.tag-blue{background:#3b82f620;color:#60a5fa;border:1px solid #3b82f630}.tag-amber{background:#f59e0b20;color:#fbbf24;border:1px solid #f59e0b30}.tag-purple{background:#8b5cf620;color:#a78bfa;border:1px solid #8b5cf630}.cap-node{width:120px;height:120px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:700;font-size:28px;cursor:pointer;transition:all .3s;border:3px solid transparent}.glow-line{height:3px;border-radius:2px;transition:all .5s}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.anim-in{animation:fadeIn .3s ease-out}