:root{--ink:#0e2a47;--muted:#5a7591;--accent:#2d8cff;--accent-2:#8fcbff;--glass:#ffffff8c;--stroke:#ffffffd9;--line:#2d8cff33;--shadow:0 10px 40px #1f6fd624;--r:20px}*{box-sizing:border-box}body{min-height:100vh;color:var(--ink);background-color:#f7fbff;background-image:radial-gradient(1100px 600px at 5% -10%,#cbe6ff 0,#0000 60%),radial-gradient(900px 500px at 105% 5%,#dcefff 0,#0000 55%),radial-gradient(900px 600px at 50% 115%,#e2f0ff 0,#0000 60%),none;background-position:0 0,0 0,0 0,0 0;background-repeat:repeat,repeat,repeat,repeat;background-size:auto,auto,auto,auto;background-attachment:fixed;background-origin:padding-box,padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box,border-box;margin:0;font:15px/1.5 ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}.glass{background:var(--glass);-webkit-backdrop-filter:blur(18px)saturate(160%);backdrop-filter:blur(18px)saturate(160%);border:1px solid var(--stroke);border-radius:var(--r);box-shadow:var(--shadow), inset 0 1px 0 #ffffffe6}button,.btn{font:inherit;border:1px solid var(--stroke);color:var(--ink);cursor:pointer;background:#ffffffb3;border-radius:999px;align-items:center;gap:6px;padding:8px 14px;text-decoration:none;display:inline-flex}button:hover,.btn:hover{background:#fff}.primary{background:linear-gradient(180deg, #5aa9ff, var(--accent));color:#fff;border-color:#0000;box-shadow:0 6px 18px #2d8cff59}.primary:hover{background:linear-gradient(#6db4ff,#1f7ff0)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.muted{color:var(--muted);font-size:13px}kbd{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:6px;padding:1px 6px;font:12px ui-monospace,monospace}.primary kbd{color:#fff;background:#ffffff40;border-color:#0000}code,pre{font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}.brand{letter-spacing:-.01em;color:var(--ink);align-items:center;gap:8px;font-weight:700;text-decoration:none;display:inline-flex}.app{grid-template-columns:minmax(0,1fr);gap:16px;max-width:1280px;margin:0 auto;padding:16px;display:grid}@media (min-width:960px){.app{grid-template-columns:minmax(0,1fr) 360px}.top{grid-column:1/-1}}.top{flex-wrap:wrap;align-items:center;gap:12px;padding:10px 14px;display:flex}#mode{margin-left:auto}.player{align-content:start;gap:12px;padding:12px;display:grid}.stage{background:var(--ink);border-radius:14px;justify-self:center;line-height:0;position:relative;overflow:hidden}#media{width:auto;max-width:100%;height:auto;max-height:70vh;display:block}#overlay{pointer-events:none;position:absolute;inset:0}.marking{outline:2px dashed var(--accent-2);outline-offset:-2px}.marking #overlay{pointer-events:auto;cursor:crosshair;touch-action:none}.mark{box-shadow:0 0 0 1.5px var(--accent);border:2px solid #fff;position:absolute}.mark.box{background:#2d8cff2e;border-radius:6px}.mark.point{background:var(--accent);border-radius:50%;width:16px;height:16px;margin:-8px 0 0 -8px}.mark.draft{border-style:dashed}.mark[data-n]:after{content:attr(data-n);background:var(--accent);color:#fff;text-align:center;border-radius:999px;min-width:20px;height:20px;padding:0 6px;font:600 12px/20px system-ui;position:absolute;top:4px;left:4px}.mark.point[data-n]:after{top:-4px;left:16px}.bar{flex-wrap:wrap;align-items:center;gap:8px;display:flex}#status{margin-left:auto}.side{align-content:start;gap:12px;display:grid}form{gap:10px;padding:14px;display:none}form.open{display:grid}textarea{font:inherit;border:1px solid var(--line);width:100%;min-height:72px;color:var(--ink);resize:vertical;background:#fffc;border-radius:14px;padding:10px 12px}ol{gap:8px;margin:0;padding:0;list-style:none;display:grid}.item{border-radius:16px;grid-template-columns:auto 1fr auto;align-items:start;gap:10px;padding:10px 12px;display:grid}.item.sel{box-shadow:var(--shadow), 0 0 0 2px #2d8cff59}.t{color:var(--accent);font-variant-numeric:tabular-nums;padding:2px 10px;font-weight:600}.text{white-space:pre-wrap;overflow-wrap:anywhere}.text small{color:var(--muted);font-size:12px;display:block}.x{color:var(--muted);background:0 0;border:none;padding:2px 6px}details{padding:10px 14px}summary{cursor:pointer;font-weight:600}pre{white-space:pre-wrap;max-height:320px;margin:10px 0 0;overflow:auto}.demo-only{display:none}.demo .demo-only{display:inline-flex}.is-image .video-only{display:none}
.page{gap:28px;max-width:1080px;margin:0 auto;padding:16px;display:grid}nav{align-items:center;gap:12px;padding:10px 14px;display:flex}nav .btn{margin-left:auto}.hero{text-align:center;justify-items:center;gap:16px;padding:40px 8px 8px;display:grid}h1{letter-spacing:-.03em;max-width:16ch;margin:0;font-size:clamp(32px,6vw,56px);line-height:1.05}h1 span{background:linear-gradient(90deg,#2d8cff,#7cc4ff);color:#0000;-webkit-background-clip:text;background-clip:text}h2{letter-spacing:-.01em;margin:0 0 8px;font-size:22px}.lead{color:var(--muted);max-width:56ch;margin:0;font-size:18px}.ctas{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.demo{padding:8px;overflow:hidden}.demo iframe{border:0;border-radius:14px;width:100%;height:min(860px,120vh);display:block}.grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.card{padding:20px}.card b{margin-bottom:4px;display:block}.card p{color:var(--muted);margin:0}.step{background:var(--accent);color:#fff;border-radius:50%;place-items:center;width:28px;height:28px;margin-bottom:10px;font-weight:700;display:inline-grid}pre.code{border:1px solid var(--line);white-space:pre;background:#ffffffbf;border-radius:14px;margin:0;padding:16px;overflow-x:auto}footer{text-align:center;padding:8px 0 32px}