:root{--bg:#f6f7fb;--bg-panel:#ffffff;--bg-elev:#eceef5;--fg:#14141c;--fg-muted:#565973;--border:#dcdfea;--accent:#4c6ef5;--accent-2:#7048e8;--hot:#e8590c;--grid-line:rgba(80,72,232,0.08);--shadow:0 1px 2px rgba(20,20,28,0.06),0 8px 24px rgba(20,20,28,0.06);color-scheme:light}:root[data-theme=dark]{--bg:#08080f;--bg-panel:#12121e;--bg-elev:#1b1b2b;--fg:#eef0fb;--fg-muted:#9a9cc0;--border:#262640;--accent:#748ffc;--accent-2:#b197fc;--hot:#ffa94d;--grid-line:rgba(116,143,252,0.10);--shadow:0 1px 2px rgba(0,0,0,0.4),0 12px 40px rgba(0,0,0,0.5);color-scheme:dark}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#08080f;--bg-panel:#12121e;--bg-elev:#1b1b2b;--fg:#eef0fb;--fg-muted:#9a9cc0;--border:#262640;--accent:#748ffc;--accent-2:#b197fc;--hot:#ffa94d;--grid-line:rgba(116,143,252,0.10);--shadow:0 1px 2px rgba(0,0,0,0.4),0 12px 40px rgba(0,0,0,0.5);color-scheme:dark}}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}.mono{font-family:ui-monospace,SF Mono,JetBrains Mono,Menlo,monospace;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font-family:inherit;color:inherit}.shell{max-width:1180px;margin:0 auto;padding:0 20px 80px}.hero{padding:48px 0 20px}.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-2);font-weight:600}.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.02;margin:12px 0 10px;letter-spacing:-.03em;font-weight:800}.hero .lede{font-size:clamp(16px,2.2vw,20px);color:var(--fg-muted);max-width:640px;line-height:1.5;margin:0}.stage{display:grid;grid-template-columns:1fr 320px;grid-gap:18px;gap:18px;margin-top:28px}@media (max-width:860px){.stage{grid-template-columns:1fr}}.canvas-card,.panel{background:var(--bg-panel);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow)}.canvas-card{position:relative;overflow:hidden;min-height:460px;aspect-ratio:1/1;background-image:radial-gradient(var(--grid-line) 1px,transparent 1px);background-size:22px 22px}.canvas-card canvas{display:block;width:100%!important;height:100%!important;touch-action:none}.canvas-badge{position:absolute;top:12px;left:14px;font-size:12px;color:var(--fg-muted);background:color-mix(in srgb,var(--bg-panel) 78%,transparent);padding:4px 9px;border-radius:8px;border:1px solid var(--border);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.panel{padding:18px 18px 22px}.panel h2{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--fg-muted);margin:0 0 14px}.field{margin-bottom:18px}.field>label{display:flex;justify-content:space-between;align-items:baseline;font-size:13px;font-weight:600;margin-bottom:8px}.field .value{color:var(--accent);font-weight:700}.segment{display:flex;gap:4px;background:var(--bg-elev);border-radius:10px;padding:4px}.segment button{flex:1 1;border:0;background:transparent;border-radius:7px;padding:7px 4px;font-size:13px;font-weight:600;cursor:pointer;color:var(--fg-muted);transition:background .12s,color .12s}.segment button[aria-pressed=true]{background:var(--accent);color:#fff}.segment.small button{font-size:12px;padding:6px 3px}input[type=range]{width:100%;accent-color:var(--accent)}select{width:100%;padding:8px 10px;border-radius:9px;border:1px solid var(--border);background:var(--bg-elev)}.toggle-row{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:600;margin-bottom:14px}.switch{width:42px;height:24px;border-radius:12px;border:1px solid var(--border);background:var(--bg-elev);position:relative;cursor:pointer;transition:background .15s}.switch[aria-pressed=true]{background:var(--accent)}.switch:after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .15s}.switch[aria-pressed=true]:after{transform:translateX(18px)}.metrics{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:10px;gap:10px;margin-top:6px}.metric{background:var(--bg-elev);border-radius:10px;padding:10px 12px}.metric .k{font-size:11px;color:var(--fg-muted);text-transform:uppercase;letter-spacing:.08em}.metric .v{font-size:20px;font-weight:700}.topbar{justify-content:space-between;padding:18px 0 0}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px;font-weight:800;letter-spacing:-.02em}.dot{width:12px;height:12px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--accent-2),var(--accent));box-shadow:0 0 12px var(--accent)}.topbar nav{display:flex;gap:18px;align-items:center;font-size:14px;font-weight:600}.icon-btn{border:1px solid var(--border);border-radius:9px;width:36px;height:36px;cursor:pointer;font-size:16px}.icon-btn,.note{background:var(--bg-panel)}.note{margin-top:30px;padding:16px 18px;border-left:3px solid var(--accent);border-radius:0 12px 12px 0;color:var(--fg-muted);font-size:14px;line-height:1.55}.note strong{color:var(--fg)}.dual{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}@media (max-width:640px){.dual{grid-template-columns:1fr}}footer{margin-top:46px;padding-top:22px;border-top:1px solid var(--border);color:var(--fg-muted);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}@media (max-width:860px){.canvas-card{min-height:300px;max-height:78vh}}@media (max-width:520px){.shell{padding:0 14px 56px}.hero{padding:30px 0 8px}.topbar nav{gap:12px;font-size:13px}.metrics{grid-template-columns:repeat(2,1fr)}.canvas-badge{font-size:11px}}@media (hover:none) and (pointer:coarse){.segment button{padding:10px 4px}.switch{width:48px;height:28px}.switch:after{width:22px;height:22px}.switch[aria-pressed=true]:after{transform:translateX(20px)}.icon-btn{width:40px;height:40px}}