:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --surface: rgba(255, 255, 255, 0.82);
  --text: #111a2d;
  --muted: #5e687b;
  --line: rgba(17, 26, 45, 0.10);
  --blue: #2f83f7;
  --cyan: #46cadc;
  --max: 920px;
}

* { box-sizing: border-box; }
html { min-height: 100%; scroll-behavior: smooth; }
body {
  min-height: 100%;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 2%, rgba(47, 131, 247, .18), transparent 30rem),
    radial-gradient(circle at 12% 34%, rgba(70, 202, 220, .14), transparent 28rem),
    var(--bg);
  font: 16px/1.68 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 247, 251, .78);
  backdrop-filter: blur(18px) saturate(135%);
}
.nav { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 750; text-decoration: none; }
.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(47, 131, 247, .18);
  border-radius: 10px;
  color: var(--blue);
  background: #fff;
  box-shadow: 0 8px 22px rgba(47, 131, 247, .13);
  font: 800 22px/1 Georgia, serif;
}
.nav-links { display: flex; gap: 20px; color: var(--muted); font-size: 14px; }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--text); }
.hero { min-height: 590px; display: grid; align-items: center; padding: 84px 0 92px; }
.eyebrow { margin: 0 0 14px; color: var(--blue); font-size: 13px; font-weight: 760; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 760px; margin-bottom: 22px; font-size: clamp(44px, 8vw, 78px); line-height: 1.02; letter-spacing: -.055em; }
.gradient-text { color: transparent; background: linear-gradient(105deg, #111a2d 10%, #2f83f7 56%, #38b8c9 96%); -webkit-background-clip: text; background-clip: text; }
.lede { max-width: 700px; margin-bottom: 22px; color: var(--muted); font-size: clamp(18px, 2.5vw, 22px); line-height: 1.55; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 20px; border: 1px solid var(--line); border-radius: 15px; background: rgba(255,255,255,.72); font-weight: 670; text-decoration: none; }
.button.primary { border-color: transparent; color: #fff; background: linear-gradient(120deg, var(--blue), var(--cyan)); }
.button.disabled { cursor: default; }
.feature-grid, .support-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding-bottom: 70px; }
.support-grid { grid-template-columns: 1fr; }
.card, .privacy-callout, .language-block { border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: 0 16px 45px rgba(45, 70, 110, .08); }
.card { padding: 28px; }
.card h2 { margin-bottom: 10px; font-size: 19px; letter-spacing: -.02em; }
.card p { margin-bottom: 0; color: var(--muted); }
.privacy-callout { margin-bottom: 96px; padding: 42px; background: linear-gradient(125deg, rgba(47,131,247,.10), rgba(70,202,220,.09)), var(--surface); }
.privacy-callout h2 { margin-bottom: 12px; font-size: clamp(28px, 5vw, 42px); letter-spacing: -.04em; }
.privacy-callout p:not(.eyebrow) { max-width: 740px; color: var(--muted); }
.privacy-callout a, .prose a, .contact-link { color: #166fda; text-underline-offset: 4px; }
.page-main { padding: 72px 0 96px; }
.page-title { margin-bottom: 48px; }
.page-title h1 { font-size: clamp(42px, 7vw, 66px); }
.updated, .language-label { color: var(--muted); font-size: 14px; }
.language-block { margin-bottom: 28px; padding: 34px; }
.language-label { margin-bottom: 26px; font-weight: 750; letter-spacing: .05em; text-transform: uppercase; }
.prose section + section { margin-top: 34px; }
.prose h2 { margin-bottom: 8px; font-size: 21px; letter-spacing: -.025em; }
.prose p { margin-bottom: 12px; color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer-row { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { text-decoration: none; }
@media (max-width: 720px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .nav { min-height: 58px; }
  .brand span:last-child { display: none; }
  .nav-links { gap: 14px; }
  .hero { min-height: auto; padding: 72px 0 64px; }
  .feature-grid { grid-template-columns: 1fr; }
  .privacy-callout, .language-block { padding: 26px; }
  .footer-row { align-items: flex-start; flex-direction: column; justify-content: center; padding: 20px 0; }
}