:root{--bg: #0d1117;--bg-2: #0b1016;--panel: #161b22;--panel-2: #1c232c;--border: #30363d;--fg: #e6edf3;--muted: #8b949e;--accent: #34d399;--accent-2: #2dd4bf;--accent-deep: #059669;--link: #58a6ff;--warn: #d29922;--danger: #f85149;--ok: #3fb950}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(900px 480px at 78% -8%,rgba(52,211,153,.1),transparent 60%),radial-gradient(700px 420px at 6% 4%,rgba(45,212,191,.07),transparent 55%),var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--link);text-decoration:none}code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.wrap{max-width:1040px;margin:0 auto;padding:0 22px}.section{padding:68px 0}.section+.section{border-top:1px solid var(--border)}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;font-weight:700;color:var(--accent);margin:0 0 10px}h1,h2,h3{line-height:1.2;letter-spacing:-.01em}.section h2{font-size:1.9rem;margin:0 0 6px}.lede{color:var(--muted);font-size:1.08rem;max-width:62ch}.nav{position:sticky;top:0;z-index:20;backdrop-filter:blur(10px);background:#0d1117b8;border-bottom:1px solid var(--border)}.nav-inner{display:flex;align-items:center;gap:20px;height:58px}.brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--fg);font-size:1.02rem;font-family:ui-monospace,monospace}.brand .caret{color:var(--accent)}.nav-links{margin-left:auto;display:flex;gap:22px;align-items:center}.nav-links a{color:var(--muted);font-size:.92rem}.nav-links a:hover{color:var(--fg)}.nav-cta{background:var(--accent);color:#04211a!important;font-weight:700;padding:7px 14px;border-radius:7px}@media(max-width:720px){.nav-links .hide-sm{display:none}}.hero{text-align:center;padding-top:72px}.hero h1{font-size:clamp(2.1rem,5.2vw,3.2rem);margin:6px 0 14px}.hero h1 .grad{background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.hero .lede{margin:0 auto 26px;font-size:1.18rem}.pill{display:inline-flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--border);color:var(--muted);padding:5px 13px;border-radius:999px;font-size:.82rem;margin-bottom:20px}.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:8px;font-weight:600;font-size:.98rem;border:1px solid transparent;transition:transform .12s ease,background .12s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--accent);color:#04211a}.btn-primary:hover{background:#4ade9f}.btn-ghost{background:var(--panel);border-color:var(--border);color:var(--fg)}.btn-ghost:hover{border-color:var(--accent)}.window{text-align:left;background:#0b0f14;border:1px solid var(--border);border-radius:11px;overflow:hidden;box-shadow:0 24px 70px -30px #000000e6,0 0 0 1px #34d3990d}.hero .window{max-width:640px;margin:0 auto}.window-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:#0d1117;border-bottom:1px solid var(--border)}.window-bar .tl{width:11px;height:11px;border-radius:50%}.tl.r{background:#ff5f56}.tl.y{background:#ffbd2e}.tl.g{background:#27c93f}.window-bar .tt{margin-left:8px;color:var(--muted);font-size:.78rem;font-family:ui-monospace,monospace}.window-body{padding:16px}.window-body>sp-tree{border:1px solid var(--border);border-radius:8px;padding:8px;--sp-tree-bg: #0d1117;--sp-tree-bg-hover: #1c232c;--sp-tree-accent: var(--accent);--sp-tree-accent-fg: #04211a;--sp-tree-border: #30363d;--sp-tree-focus-ring: 0 0 0 2px var(--accent)}sp-tree,sp-tree-select{display:block}.out{margin-top:12px;padding:10px 12px;background:#0d1117;border:1px solid var(--border);border-radius:8px;font:12px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--muted);white-space:pre-wrap;word-break:break-word;min-height:1.6em}.out .k{color:var(--accent)}.hint{margin:10px 0 0;color:var(--muted);font-size:.82rem}.hint kbd{font-family:ui-monospace,monospace;font-size:.78rem;color:var(--fg);background:var(--panel-2);border:1px solid var(--border);border-bottom-width:2px;border-radius:5px;padding:1px 6px}.grid{display:grid;gap:16px}.grid.cols-4{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.card{background:linear-gradient(180deg,var(--panel),var(--bg-2));border:1px solid var(--border);border-radius:12px;padding:20px;transition:border-color .15s ease,transform .15s ease}.card:hover{border-color:#34d39980;transform:translateY(-2px)}.card h3{margin:0 0 6px;font-size:1.05rem}.card p{margin:0;color:var(--muted);font-size:.94rem}.card .ico{font-size:1.4rem;display:block;margin-bottom:8px}.demos{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.demos>*{grid-column:span 12}@media(min-width:800px){.demos .span-6{grid-column:span 6}.demos .span-12{grid-column:span 12}}.panel{background:linear-gradient(180deg,var(--panel),var(--bg-2));border:1px solid var(--border);border-radius:12px;padding:18px 20px}.panel-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}.panel-title h3{margin:0;font-size:.92rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.badge{font-size:.72rem;font-weight:700;padding:3px 9px;border-radius:999px;border:1px solid;white-space:nowrap}.badge.live{color:var(--accent);border-color:#34d39966;background:#34d39914}.panel>p{margin:0 0 14px;color:var(--muted);font-size:.88rem}.panel sp-tree{border:1px solid var(--border);border-radius:8px;padding:8px;--sp-tree-bg: #0d1117;--sp-tree-bg-hover: #1c232c;--sp-tree-accent: var(--accent);--sp-tree-accent-fg: #04211a;--sp-tree-border: #30363d;--sp-tree-focus-ring: 0 0 0 2px var(--accent)}.panel sp-tree-select{--sp-tree-bg: #0d1117;--sp-tree-bg-hover: #1c232c;--sp-tree-accent: var(--accent);--sp-tree-accent-fg: #04211a;--sp-tree-border: #30363d;--sp-tree-panel-bg: #10161d;--sp-tree-chip-bg: #1c232c;--sp-tree-chip-fg: #e6edf3;--sp-tree-focus-ring: 0 0 0 2px var(--accent)}.playground{display:grid;grid-template-columns:1fr;gap:18px}@media(min-width:800px){.playground{grid-template-columns:300px 1fr}}.controls{display:grid;gap:14px;align-content:start}.control{display:grid;gap:5px}.control label{font-size:.82rem;color:var(--muted);display:flex;justify-content:space-between}.control label .val{font-family:ui-monospace,monospace;color:var(--fg)}.control input[type=range]{width:100%;accent-color:var(--accent)}.control input[type=color]{width:100%;height:34px;padding:2px;border:1px solid var(--border);border-radius:7px;background:var(--bg-2);cursor:pointer}.control select{background:var(--bg-2);color:var(--fg);border:1px solid var(--border);border-radius:7px;padding:7px 10px;font-size:.88rem}.seg{display:flex;border:1px solid var(--border);border-radius:8px;overflow:hidden}.seg button{flex:1;padding:8px 10px;background:var(--bg-2);color:var(--muted);border:0;cursor:pointer;font-size:.85rem;font-weight:600}.seg button.active{background:#34d3991f;color:var(--accent)}.pg-stage{border:1px solid var(--border);border-radius:10px;padding:18px;display:grid;gap:14px;align-content:start;transition:background .2s ease}.pg-stage.light{background:#f8fafc}.pg-stage.dark{background:#0d1117}.pg-css{margin:0;padding:12px 14px;background:#0b0f14;border:1px solid var(--border);border-radius:8px;font-size:.78rem;line-height:1.7;overflow-x:auto;color:#c9d1d9}.pg-css .tok{color:var(--accent-2)}.linkgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}.linkgrid a{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--border);border-radius:9px;padding:14px 16px;color:var(--fg);font-size:.94rem;font-weight:500;transition:border-color .15s ease,background .15s ease}.linkgrid a:hover{border-color:var(--accent);background:var(--panel-2)}.linkgrid a .arw{margin-left:auto;color:var(--muted)}.qs-pre{background:#0b0f14;border:1px solid var(--border);border-radius:11px;padding:18px 20px;overflow-x:auto;font-size:.86rem;line-height:1.8;margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.qs-pre .prompt{color:var(--accent)}.qs-pre .muted{color:#6e7681}.qs-pre .tag{color:#7ee787}.qs-pre .attr{color:#79c0ff}.qs-pre .str{color:#a5d6ff}.qs-pre .kw{color:#ff7b72}.stacks{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.stack{text-align:center;padding:22px}.stack .ico{font-size:1.7rem}.stack h3{margin:10px 0 6px}.foot{padding:40px 0 56px;text-align:center;color:var(--muted);border-top:1px solid var(--border)}.foot a{color:var(--link)}.foot .fine{margin-top:12px;font-size:.82rem;opacity:.8;max-width:70ch;margin-left:auto;margin-right:auto}