:root {
  --bg: #0b0f1a;
  --panel: rgba(14, 18, 28, 0.55);
  --line: rgba(255, 255, 255, 0.14);
  --text: #f3f5f8;
  --muted: rgba(243, 245, 248, 0.62);
  --accent: #ffffff;
  --ok: #8fe3b0;
  --err: #ffb1a8;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.55 var(--font); }
a { color: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid rgba(255,255,255,.75); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.muted { color: var(--muted); }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100svh; display: grid; grid-template-rows: auto 1fr auto; overflow: hidden; }
#demo { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.scrim { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,9,16,.72) 0%, rgba(6,9,16,.35) 45%, rgba(6,9,16,0) 75%), linear-gradient(0deg, rgba(6,9,16,.55) 0%, rgba(6,9,16,0) 35%); pointer-events: none; }

.top { position: relative; display: flex; justify-content: space-between; align-items: center; padding: max(18px, env(safe-area-inset-top)) clamp(16px, 5vw, 56px) 0; }
.brand { display: inline-flex; gap: 10px; align-items: center; font-weight: 600; letter-spacing: .01em; text-decoration: none; }
.top-cta { text-decoration: none; font-size: 14px; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }

.hero-copy { position: relative; align-self: center; padding: 48px clamp(16px, 5vw, 56px); max-width: 640px; }
.eyebrow { margin: 0 0 14px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
h1 { margin: 0; font-size: clamp(38px, 6vw, 68px); line-height: 1.04; letter-spacing: -0.02em; font-weight: 700; text-wrap: balance; }
.lede { margin: 20px 0 28px; font-size: clamp(17px, 1.6vw, 19px); color: rgba(243,245,248,.84); max-width: 52ch; }

.signup { display: flex; flex-wrap: wrap; gap: 10px; max-width: 520px; }
.signup input[type=email] {
  flex: 1 1 240px; min-width: 0; font: inherit; color: var(--text); padding: 13px 16px; border-radius: var(--radius);
  border: 1px solid var(--line); background: rgba(10, 13, 22, .6); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
}
.signup input::placeholder { color: rgba(243,245,248,.45); }
.signup button {
  flex: 0 0 auto; font: inherit; font-weight: 600; color: #0b0f1a; background: var(--accent); border: 0;
  padding: 13px 20px; border-radius: var(--radius); cursor: pointer;
}
.signup button[disabled] { opacity: .6; cursor: default; }
.form-msg { flex-basis: 100%; margin: 2px 0 0; min-height: 1.4em; font-size: 14px; }
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: var(--err); }
.fine { margin: 10px 0 0; font-size: 13px; color: var(--muted); }

.controls { position: relative; display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; padding: 0 clamp(16px, 5vw, 56px) max(22px, env(safe-area-inset-bottom)); }
.chips { display: inline-flex; flex-wrap: wrap; gap: 2px; padding: 3px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.chips button { font: inherit; font-size: 13px; color: var(--text); background: transparent; border: 0; padding: 6px 12px; border-radius: 999px; cursor: pointer; }
.chips button[aria-pressed="true"] { background: rgba(255,255,255,.2); }
.clock { margin: 0; font-size: 13px; font-variant-numeric: tabular-nums; }

/* ---------- Content ---------- */
main { padding: 0 clamp(16px, 5vw, 56px); }
.features { max-width: 1080px; margin: 96px auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 40px 48px; }
.features h2 { margin: 0 0 10px; font-size: 20px; letter-spacing: -0.01em; }
.features p { margin: 0; color: var(--muted); }

.faq { max-width: 720px; margin: 0 auto 96px; }
.faq h2, .join h2 { font-size: clamp(26px, 3vw, 34px); letter-spacing: -0.015em; margin: 0 0 20px; }
details { border-top: 1px solid var(--line); padding: 16px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; color: var(--muted); }
details[open] summary::after { content: "–"; }
details p { margin: 10px 0 0; color: var(--muted); }

.join { max-width: 720px; margin: 0 auto 110px; }

footer { display: flex; flex-wrap: wrap; gap: 8px 22px; padding: 28px clamp(16px, 5vw, 56px) max(28px, env(safe-area-inset-bottom)); border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
footer a { text-decoration: none; }

/* ---------- Privacy page ---------- */
.doc { max-width: 680px; margin: 0 auto; padding: 48px 16px 96px; }
.doc h1 { font-size: 36px; margin-bottom: 8px; }
.doc h2 { font-size: 19px; margin: 32px 0 8px; }
.doc p, .doc li { color: rgba(243,245,248,.8); }

@media (max-width: 640px) {
  .scrim { background: linear-gradient(0deg, rgba(6,9,16,.8) 0%, rgba(6,9,16,.35) 60%, rgba(6,9,16,.2) 100%); }
  .hero-copy { padding-top: 24px; }
  .clock .muted { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto; } }