:root{--bg: #0b0b0d;--bg-elevated: #141416;--bg-card: #18181b;--text: #eeece6;--text-dim: #9a9992;--accent: #d4a017;--accent-soft: rgba(212, 160, 23, .14);--border: #2a2a2e;--success: #4ade80;--danger: #f87171;--mono: "JetBrains Mono", ui-monospace, monospace;--display: "Space Grotesk", system-ui, sans-serif;--body: "Inter", system-ui, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--body);min-height:100vh}body{background-image:radial-gradient(circle,rgba(238,236,230,.08) 1px,transparent 1px);background-size:24px 24px}a{color:inherit}#app{max-width:1180px;margin:0 auto;padding:0 24px 64px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:22px 0;border-bottom:1px solid var(--border);margin-bottom:40px;flex-wrap:wrap;gap:12px}.topbar .brand{font-family:var(--display);font-weight:800;font-size:1.15rem;letter-spacing:-.02em}.topbar .links{display:flex;gap:20px;font-size:.9rem;color:var(--text-dim)}.topbar .links a{text-decoration:none;transition:color .15s ease}.topbar .links a:hover{color:var(--accent)}.hero{margin-bottom:36px}.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(2rem,5vw,3.2rem);letter-spacing:-.03em;line-height:1.05;margin:0 0 14px}.hero p{color:var(--text-dim);font-size:1.05rem;max-width:640px;line-height:1.5;margin:0}.hero .modules{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}.pill{font-family:var(--mono);font-size:.72rem;color:var(--text-dim);border:1px solid var(--border);border-radius:100px;padding:4px 10px;background:var(--bg-card)}.demo-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:20px;align-items:start}@media (max-width: 780px){.demo-grid{grid-template-columns:1fr}}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:18px}.card h2{font-family:var(--display);font-size:1rem;font-weight:700;margin:0 0 12px;letter-spacing:-.01em}.field-label{font-family:var(--mono);font-size:.72rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.06em;margin:14px 0 6px}.field-label:first-child{margin-top:0}textarea{width:100%;background:var(--bg-elevated);color:var(--text);border:1px solid var(--border);border-radius:8px;font-family:var(--mono);font-size:.82rem;line-height:1.5;padding:10px 12px;resize:vertical;min-height:110px}textarea:focus{outline:none;border-color:var(--accent)}button.run-btn{margin-top:16px;width:100%;background:var(--accent);color:#17140a;border:none;border-radius:8px;font-family:var(--body);font-weight:600;font-size:.95rem;padding:11px 16px;cursor:pointer;transition:box-shadow .15s ease,transform .1s ease}button.run-btn:hover{box-shadow:0 0 0 6px var(--accent-soft)}button.run-btn:active{transform:translateY(1px)}.presets{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}.preset-btn{background:transparent;border:1px solid var(--border);color:var(--text-dim);border-radius:100px;font-size:.75rem;font-family:var(--body);padding:5px 12px;cursor:pointer;transition:border-color .15s ease,color .15s ease}.preset-btn:hover{border-color:var(--accent);color:var(--accent)}.tabs{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:14px;border-bottom:1px solid var(--border);padding-bottom:0}.tab-btn{background:transparent;border:none;color:var(--text-dim);font-family:var(--body);font-weight:600;font-size:.82rem;padding:8px 12px;cursor:pointer;border-bottom:2px solid transparent;transition:color .15s ease,border-color .15s ease}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}.tab-btn:hover:not(.active){color:var(--text)}.output-panel{background:var(--bg-elevated);border:1px solid var(--border);border-radius:8px;padding:14px;font-family:var(--mono);font-size:.78rem;line-height:1.6;max-height:480px;overflow:auto}.output-panel::-webkit-scrollbar{width:8px;height:8px}.output-panel::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.tok-tag{color:var(--accent)}.tok-attr{color:#7ec3e0}.tok-str{color:var(--success)}.tok-text{color:var(--text-dim)}.tok-comment{color:#6b7280;font-style:italic}.tok-punc{color:var(--text-dim)}.tree-line{white-space:pre}.tree-tag{color:var(--accent)}.tree-text{color:var(--text-dim)}.tree-comment{color:#6b7280;font-style:italic}.rule-block{margin-bottom:12px}.rule-sel{color:var(--accent)}.rule-decl-prop{color:#7ec3e0}.rule-decl-val{color:var(--success)}.rule-important{color:var(--danger)}.style-node{margin-bottom:10px}.style-node-tag{color:var(--accent)}.style-prop{color:#7ec3e0}.style-val{color:var(--success)}.layout-canvas-wrap{overflow:auto;background:var(--bg-elevated);border:1px solid var(--border);border-radius:8px;padding:12px}.error-box{border:1px solid var(--danger);background:#f8717114;color:var(--danger);border-radius:8px;padding:10px 12px;font-family:var(--mono);font-size:.78rem;margin-bottom:12px}.empty-state{color:var(--text-dim);font-family:var(--body);font-size:.85rem;padding:20px;text-align:center}footer{margin-top:56px;padding-top:20px;border-top:1px solid var(--border);color:var(--text-dim);font-size:.8rem;text-align:center}footer a{color:var(--accent);text-decoration:none}