Claude
59c7859bd4
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01GYeokZtSmqg42ZGWsLXX2C
60 lines
2.7 KiB
HTML
60 lines
2.7 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<title>loading</title>
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<!-- GSAP core from CDN — no build step. Add plugins the same way if needed:
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https://cdnjs.cloudflare.com/ajax/libs/gsap/3.13.0/ScrollTrigger.min.js -->
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<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.13.0/gsap.min.js"></script>
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<style>
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:root { color-scheme: dark; }
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* { margin: 0; box-sizing: border-box; }
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body {
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min-height: 100svh; display: grid; place-items: center;
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background: radial-gradient(120% 120% at 50% 0%, #1b1f3b 0%, #0a0a12 60%);
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font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
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color: #f4f5ff; overflow: hidden;
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}
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.stage { text-align: center; padding: 6vmin; }
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.title { font-size: clamp(2.5rem, 9vw, 6rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
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.sub { font-size: clamp(1rem, 3.2vw, 1.6rem); margin-top: 1.2rem; color: #aab; }
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.cta { display: inline-block; margin-top: 2.4rem; padding: 0.9rem 1.8rem;
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border-radius: 999px; background: #5b6cff; color: #fff; font-weight: 600; }
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</style>
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</head>
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<body>
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<main class="stage">
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<h1 class="title">Ship it.</h1>
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<p class="sub">A standalone, screenshot-verifiable GSAP scene.</p>
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<a class="cta" href="#">Get started</a>
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</main>
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<script>
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const reduce = matchMedia("(prefers-reduced-motion: reduce)").matches;
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// ── One master timeline: a single playhead the harness can seek ──────────
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const tl = gsap.timeline({ defaults: { ease: "power3.out", duration: 0.7 } });
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if (reduce) {
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// Reduced motion: no spatial movement — just make the final state visible.
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gsap.set([".title", ".sub", ".cta"], { opacity: 1, y: 0 });
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} else {
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tl.from(".title", { yPercent: 110, opacity: 0, ease: "power4.out", duration: 0.9 })
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.from(".sub", { y: 24, opacity: 0 }, "-=0.45")
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.from(".cta", { scale: 0.9, opacity: 0, ease: "back.out(1.7)" }, "-=0.3");
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}
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// ── Seek harness: ?t=N freezes the timeline at N seconds for a clean shot ─
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const t = new URLSearchParams(location.search).get("t");
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if (t !== null) { tl.pause(); tl.seek(parseFloat(t)); } // deterministic frozen frame
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// no ?t → plays normally on load
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// ── Ready signals for headless verification ──────────────────────────────
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window.__ready = true;
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document.title = "ready";
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console.log("duration", tl.duration()); // end time for the ?t=<dur> shot
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</script>
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</body>
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</html>
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