:root{--bg: #0b1020;--bg-glow: #1a2342;--panel: #121a30;--panel-2: #0e1528;--line: #243049;--text: #e6ebf5;--muted: #9aa7c2;--accent: #8b5cf6;--accent-2: #22d3ee;--good: #34d399;--bad: #fb7185;--wait: #fbbf24;--radius: 14px;--code-bg: #060a16;--input-bg: #060a16;--image-bg: #0a0f1f;--code-inline-bg: rgba(255, 255, 255, .08);--code-inline-bg-soft: rgba(255, 255, 255, .06);color-scheme:dark}:root[data-theme=light]{--bg: #f3f5fb;--bg-glow: #e2e8ff;--panel: #ffffff;--panel-2: #eef1f9;--line: #dde2ef;--text: #171b2c;--muted: #5c6478;--accent: #7c3aed;--accent-2: #0e7490;--good: #059669;--bad: #e11d48;--wait: #b45309;--input-bg: #ffffff;--image-bg: #e7eaf4;--code-inline-bg: rgba(15, 23, 42, .06);--code-inline-bg-soft: rgba(15, 23, 42, .06);color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(1200px 600px at 80% -10%,var(--bg-glow) 0%,var(--bg) 60%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.55;transition:background .2s ease,color .2s ease}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.theme-toggle{position:fixed;top:18px;right:20px;z-index:100;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--panel);border-radius:999px;font-size:18px;line-height:1;cursor:pointer;transition:transform .1s ease,border-color .2s}.theme-toggle:hover{border-color:var(--accent);transform:translateY(-1px)}.hero{border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(139,92,246,.12),transparent)}.hero-inner{max-width:880px;margin:0 auto;padding:64px 24px 48px;text-align:center}.logo{font-size:44px}.hero h1{font-size:clamp(32px,5vw,52px);margin:8px 0 4px;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.02em}.sub{color:var(--muted);max-width:640px;margin:0 auto 16px}.lead{max-width:680px;margin:0 auto 24px;font-size:15px}.hero code,.lead code{background:var(--code-inline-bg);padding:1px 6px;border-radius:6px;font-size:.9em}.hero-actions{display:flex;gap:12px;justify-content:center}.btn{border:1px solid var(--line);background:var(--panel);color:var(--text);padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;transition:transform .1s ease,border-color .2s}.btn:hover{border-color:var(--accent);transform:translateY(-1px)}.btn.primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));border:none;color:#0b1020}.layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:32px;max-width:1180px;margin:0 auto;padding:32px 24px 80px}.nav{position:sticky;top:24px;align-self:start;height:fit-content}.nav-title{text-transform:uppercase;font-size:11px;letter-spacing:.12em;color:var(--muted);margin:0 0 10px 12px}.nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.nav a{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:9px;color:var(--muted);text-decoration:none;font-size:14px;border-left:2px solid transparent}.nav a:hover{background:var(--panel);color:var(--text)}.nav a.on{background:var(--panel);color:var(--text);border-left-color:var(--accent)}.nav-num{font-size:11px;color:var(--accent);font-family:ui-monospace,monospace}.main{display:flex;flex-direction:column;gap:28px;min-width:0}.feature{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;scroll-margin-top:20px}.feature-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}.feature h2{margin:0 0 6px;font-size:22px;letter-spacing:-.01em}.num{color:var(--accent);font-family:ui-monospace,monospace;font-size:18px}.tagline{color:var(--muted);margin:0 0 12px;font-size:14px;max-width:70ch}.prop-row{display:flex;flex-wrap:wrap;gap:6px}.pill{font-size:12px;background:#8b5cf626;color:#c4b5fd;border:1px solid rgba(139,92,246,.3);padding:2px 9px;border-radius:999px}.replay{flex:none;border:1px solid var(--line);background:var(--panel-2);color:var(--text);padding:8px 14px;border-radius:9px;font-size:13px;font-weight:600;cursor:pointer}.replay:hover{border-color:var(--accent)}.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:18px}.pane{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px}.pane-before{border-color:#fb718559}.pane-after{border-color:#34d39959}.pane-head{display:flex;align-items:center;gap:8px}.pane-tag{font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px}.pane-before .pane-tag{background:#fb71852e;color:var(--bad)}.pane-after .pane-tag{background:#34d3992e;color:var(--good)}.pane-title{font-size:13px;color:var(--muted)}.pane-body{position:relative}.pane img,.pane-body img,.pane span[role=img],.pane-body>span{border-radius:8px;background:var(--image-bg);max-width:100%}.pane img{display:block;object-fit:cover}.pane-note{font-size:12px;color:var(--muted)}.pane-note strong{color:var(--text)}.status-row{min-height:24px}.badge{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;border:1px solid var(--line)}.badge-neutral{color:var(--muted)}.badge-good{color:var(--good);border-color:#34d39966;background:#34d3991a}.badge-bad{color:var(--bad);border-color:#fb718566;background:#fb71851a}.badge-wait{color:var(--wait);border-color:#fbbf2466;background:#fbbf241a}.scrollbox{height:200px;overflow:auto;border:1px dashed var(--line);border-radius:8px;padding:10px;position:relative}.scroll-hint{position:sticky;top:0;font-size:11px;color:var(--wait);text-align:center;padding-bottom:6px}.scroll-spacer{height:360px}.code{background:var(--code-bg);border:1px solid var(--line);border-radius:10px;padding:14px 16px;overflow-x:auto;font-size:13px;margin:0;color:#c5d1ee}.code-sm{font-size:11px;margin-top:8px;white-space:pre-wrap;word-break:break-all;color:var(--accent-2)}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.metrics div{background:var(--code-bg);border:1px solid var(--line);border-radius:8px;padding:8px 10px;text-align:center}.metrics span{display:block;font-size:11px;color:var(--muted)}.metrics strong{font-size:14px;color:var(--accent-2)}.progress-wrap{display:flex;flex-direction:column;gap:4px}.progress-track{height:8px;border-radius:999px;background:var(--code-bg);border:1px solid var(--line);overflow:hidden}.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width 90ms linear}.progress-fill.indeterminate{width:30%;animation:progress-indeterminate 1.1s ease-in-out infinite}@keyframes progress-indeterminate{0%{transform:translate(-100%)}to{transform:translate(330%)}}.progress-label{font-size:11px;color:var(--muted)}.check{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px;cursor:pointer}.btn-row{display:flex;flex-wrap:wrap;gap:6px}.btn-row button{font-size:12px;border:1px solid var(--line);background:var(--panel);color:var(--text);padding:6px 10px;border-radius:8px;cursor:pointer}.btn-row button:hover{border-color:var(--accent)}.cache-msg{font-size:12px;color:var(--accent-2);margin:2px 0 0;min-height:18px}.foot{text-align:center;color:var(--muted);font-size:13px;padding-top:12px}.foot code{background:var(--code-inline-bg-soft);padding:1px 6px;border-radius:5px}.nav-playground{font-weight:700;color:var(--text)!important;background:linear-gradient(90deg,#8b5cf62e,#22d3ee1a);margin-bottom:10px}.nav-playground.on{border-left-color:var(--accent-2)}.mini-controls{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--muted)}.mini-controls input[type=range]{vertical-align:middle;width:90px}.event-line{margin-top:2px}.radio-row{display:flex;flex-wrap:wrap;gap:6px}.radio-pill{position:relative;display:inline-flex;align-items:center;gap:4px;font-size:12px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);background:var(--panel-2);color:var(--muted);cursor:pointer}.radio-pill input{position:absolute;opacity:0;pointer-events:none}.radio-pill.on{border-color:var(--accent);color:var(--text);background:#8b5cf62e}.provider-demo{display:flex;flex-direction:column;gap:14px}.provider-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px}.provider-card{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:10px;display:flex;flex-direction:column;gap:8px}.provider-card img,.provider-card span[role=img]{border-radius:6px;max-width:100%}.playground{background:linear-gradient(160deg,rgba(139,92,246,.1),var(--panel) 40%);border:1px solid rgba(139,92,246,.35);border-radius:var(--radius);padding:24px;scroll-margin-top:20px}.playground-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}.playground-head h2{margin:0 0 6px;font-size:24px;letter-spacing:-.01em;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.playground-actions{display:flex;gap:8px;flex:none}.playground-grid{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:20px;align-items:start}.playground-controls{display:flex;flex-direction:column;gap:10px;max-height:78vh;overflow-y:auto;padding-right:6px}.playground-preview{display:flex;flex-direction:column;gap:16px;min-width:0;position:sticky;top:20px}.pg-preview-card{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;flex-direction:column;align-items:center;gap:14px}.pg-preview-body{display:flex;justify-content:center;max-width:100%}.pg-preview-body img,.pg-preview-body span[role=img]{max-width:100%}.pg-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;width:100%}.pg-metrics div{background:var(--code-bg);border:1px solid var(--line);border-radius:8px;padding:8px 10px;text-align:center}.pg-metrics span{display:block;font-size:11px;color:var(--muted)}.pg-metrics strong{font-size:13px;color:var(--accent-2)}.pg-progress{width:100%}.pg-code{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:4px}.pg-code-head{display:flex;justify-content:space-between;align-items:center;padding:8px 12px 4px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.btn-copy{border:1px solid var(--line);background:var(--panel);color:var(--text);font-size:12px;font-weight:600;padding:4px 10px;border-radius:7px;cursor:pointer}.btn-copy:hover{border-color:var(--accent)}.pg-code .code{border:none;margin:0}.ctrl-group{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:4px 12px}.ctrl-group+.ctrl-group{margin-top:0}.ctrl-group summary{cursor:pointer;list-style:none;padding:10px 0;display:flex;align-items:baseline;gap:8px;font-weight:700;font-size:13px;color:var(--text)}.ctrl-group summary::-webkit-details-marker{display:none}.ctrl-group summary:before{content:"▸";color:var(--accent);font-size:11px;transition:transform .15s}.ctrl-group[open] summary:before{transform:rotate(90deg)}.ctrl-group-hint{font-size:11px;font-weight:400;color:var(--muted)}.ctrl-group-body{display:flex;flex-direction:column;gap:12px;padding:2px 0 14px}.field{display:flex;flex-direction:column;gap:5px;font-size:13px}.field-label{color:var(--text);font-weight:600;font-size:12px}.field-hint{font-size:11px;color:var(--muted)}.field-note{font-size:11px;color:var(--muted);margin:0;line-height:1.5}.field-note code{background:var(--code-inline-bg-soft);padding:0 4px;border-radius:4px}.ctrl-input{background:var(--input-bg);border:1px solid var(--line);color:var(--text);border-radius:7px;padding:6px 9px;font-size:13px;width:100%}.ctrl-input:focus{outline:none;border-color:var(--accent)}.ctrl-mono{font-family:ui-monospace,monospace}.ctrl-select{background:var(--input-bg);border:1px solid var(--line);color:var(--text);border-radius:7px;padding:6px 9px;font-size:13px;width:100%}.ctrl-number{display:flex;align-items:center;gap:6px}.ctrl-number .ctrl-input{width:72px;flex:none}.ctrl-suffix{font-size:11px;color:var(--muted)}.ctrl-color{display:flex;align-items:center;gap:8px}.ctrl-color input[type=color]{width:30px;height:30px;padding:0;border:1px solid var(--line);border-radius:7px;background:none;flex:none;cursor:pointer}.ctrl-color .ctrl-input{flex:1}.toggle{position:relative;display:inline-flex;align-items:center;gap:8px;cursor:pointer;font-size:12px;color:var(--text)}.toggle input{position:absolute;opacity:0;pointer-events:none}.toggle-track{width:34px;height:19px;border-radius:999px;background:var(--line);position:relative;flex:none;transition:background .15s}.toggle-thumb{position:absolute;top:2px;left:2px;width:15px;height:15px;border-radius:50%;background:#cbd5e1;transition:transform .15s}.toggle input:checked+.toggle-track{background:var(--accent)}.toggle input:checked+.toggle-track .toggle-thumb{transform:translate(15px);background:#fff}.toggle-disabled{opacity:.45;cursor:not-allowed}.toggle-label{color:var(--muted)}input[type=range]{accent-color:var(--accent)}@media (max-width: 860px){.layout{grid-template-columns:1fr}.nav{position:static;overflow-x:auto}.nav ul{flex-direction:row;flex-wrap:wrap}.demo-grid,.playground-grid{grid-template-columns:1fr}.playground-controls{max-height:none}.playground-preview{position:static}}