:root {
  color-scheme: dark;
  --ink: #f2f4f1;
  --muted: #9da6a2;
  --line: rgba(242, 244, 241, 0.13);
  --surface: #111516;
  --surface-strong: #191e1f;
  --accent: #6ce6d0;
  --page: #080a0b;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.site-header {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 650; letter-spacing: .02em; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav { display: flex; align-items: center; gap: 24px; color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--ink); }
.nav .nav-cta { color: var(--page); background: var(--accent); padding: 7px 13px; border-radius: 4px; font-weight: 650; }
.hero { min-height: 670px; display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; padding: 74px 0 94px; }
.hero h1 { max-width: 560px; font-size: clamp(46px, 7vw, 82px); line-height: .98; letter-spacing: -.05em; margin: 0 0 25px; font-weight: 680; }
.hero h1 em { color: var(--accent); font-family: var(--serif); font-weight: 400; font-style: italic; letter-spacing: -.06em; }
.hero p { max-width: 470px; color: var(--muted); font-size: 18px; margin: 0 0 32px; }
.actions { display: flex; gap: 12px; align-items: center; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--line); border-radius: 4px; font-size: 14px; font-weight: 650; }
.button.primary { background: var(--accent); color: #06110f; border-color: var(--accent); }
.button.secondary:hover { border-color: var(--accent); color: var(--accent); }
.hero-note { margin-top: 46px; color: #69726f; font-size: 12px; letter-spacing: .04em; }
.clock-stage { position: relative; padding: 26px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; box-shadow: 0 25px 80px rgba(0,0,0,.38); }
.clock-stage::before { content: ''; position: absolute; inset: 13px; border: 1px solid rgba(108,230,208,.2); border-radius: 6px; pointer-events: none; }
.stage-label { display: flex; justify-content: space-between; color: #6d7773; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; margin: 0 0 20px; }
.clock-display { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.digit-card { position: relative; overflow: hidden; min-height: 254px; display: grid; place-items: center; background: #090b0c; border: 1px solid rgba(242,244,241,.17); border-radius: 7px; }
.digit-card::after { content: ''; position: absolute; top: 50%; left: 0; right: 0; height: 2px; background: rgba(0,0,0,.72); box-shadow: 0 1px rgba(255,255,255,.08); }
.digit { font-variant-numeric: tabular-nums; font-size: clamp(150px, 20vw, 220px); line-height: 1; font-weight: 300; letter-spacing: -.1em; transform: translateX(-.05em); }
.digit.flip { animation: card-flip .42s ease both; }
@keyframes card-flip { 0% { transform: translateX(-.05em) rotateX(0); } 45% { transform: translateX(-.05em) rotateX(-18deg); } 100% { transform: translateX(-.05em) rotateX(0); } }
.section { padding: 92px 0; border-top: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 38px; }
.section h2 { margin: 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.05; letter-spacing: -.04em; }
.section-head p { color: var(--muted); max-width: 380px; margin: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.feature { padding: 25px 26px 4px 0; border-right: 1px solid var(--line); margin-right: 26px; }
.feature:last-child { border-right: 0; margin-right: 0; }
.feature-index { color: var(--accent); font-size: 12px; letter-spacing: .1em; }
.feature h3 { margin: 30px 0 8px; font-size: 20px; }
.feature p { color: var(--muted); margin: 0; font-size: 15px; }
.privacy-band { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: start; }
.privacy-band p { color: var(--muted); margin: 0 0 18px; }
.privacy-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0; padding: 0; list-style: none; }
.privacy-list li { border-top: 1px solid var(--line); padding-top: 11px; color: #c7cfcb; font-size: 14px; }
.footer { padding: 25px 0 38px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; color: #6d7773; font-size: 12px; }
.legal { max-width: 760px; padding: 70px 0 100px; }
.legal h1 { font-size: clamp(40px, 6vw, 64px); line-height: 1; letter-spacing: -.05em; margin: 0 0 18px; }
.legal .updated { color: var(--muted); font-size: 14px; margin-bottom: 56px; }
.legal h2 { font-size: 22px; margin: 38px 0 9px; }
.legal p, .legal li { color: #bcc4c0; font-size: 16px; }
.legal ul { padding-left: 22px; }
@media (max-width: 780px) {
  .wrap { width: min(100% - 32px, 600px); }
  .site-header { height: 68px; }
  .nav { gap: 13px; font-size: 12px; }
  .nav .nav-cta { padding: 6px 9px; }
  .hero { grid-template-columns: 1fr; gap: 42px; min-height: auto; padding: 62px 0 72px; }
  .hero h1 { font-size: clamp(48px, 16vw, 76px); }
  .hero p { font-size: 16px; }
  .clock-stage { padding: 18px; }
  .digit-card { min-height: 170px; }
  .digit { font-size: clamp(110px, 31vw, 180px); }
  .section { padding: 68px 0; }
  .section-head, .privacy-band { display: block; }
  .section-head p { margin-top: 18px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature { border-right: 0; border-bottom: 1px solid var(--line); padding: 22px 0 25px; margin: 0; }
  .feature:last-child { border-bottom: 0; }
  .privacy-list { margin-top: 34px; }
  .footer { display: block; }
  .footer span + span { display: block; margin-top: 8px; }
}