:root {
  --accent: #0C8599;
  --accent-dark: #0a6f80;
  --coral: #FF7A59;
  --ink: #14171A;
  --ink2: #6B7280;
  --bg: #FFFFFF;
  --surface: #F6F7F9;
  --line: #EAEBEE;
  --maxw: 760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---- header ---- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  max-width: 1080px;
  margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.nav a { color: var(--ink2); font-size: 14px; font-weight: 600; margin-left: 22px; }
.nav a:hover { color: var(--ink); text-decoration: none; }

/* ---- hero ---- */
.hero { text-align: center; padding: 72px 24px 56px; max-width: 720px; margin: 0 auto; }
.hero-mark {
  width: 76px; height: 76px; border-radius: 20px;
  background: var(--accent); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 38px; margin-bottom: 22px;
  box-shadow: 0 12px 30px rgba(12,133,153,0.25);
}
.hero h1 { font-size: 44px; line-height: 1.1; letter-spacing: -1px; margin: 0 0 14px; }
.hero .tagline { font-size: 19px; color: var(--ink2); margin: 0 0 32px; }
.hero .accent { color: var(--accent); }

.badges { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--ink); color: #fff;
  padding: 12px 20px; border-radius: 12px;
  font-weight: 600; font-size: 14px;
}
.badge:hover { text-decoration: none; opacity: 0.9; }
.badge.soon { background: var(--surface); color: var(--ink2); cursor: default; }

/* ---- features ---- */
.features { padding: 40px 24px 72px; max-width: 900px; margin: 0 auto; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.feature {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 16px; padding: 22px;
}
.feature .emoji { font-size: 26px; }
.feature h3 { margin: 12px 0 6px; font-size: 16.5px; }
.feature p { margin: 0; color: var(--ink2); font-size: 14.5px; }

/* ---- legal / content pages ---- */
.doc { padding: 48px 24px 80px; }
.doc h1 { font-size: 32px; letter-spacing: -0.5px; margin: 0 0 6px; }
.doc .updated { color: var(--ink2); font-size: 14px; margin: 0 0 36px; }
.doc h2 { font-size: 20px; margin: 40px 0 10px; letter-spacing: -0.2px; }
.doc h3 { font-size: 16px; margin: 26px 0 6px; }
.doc p, .doc li { font-size: 15.5px; color: #2b2f34; }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 7px; }
.doc strong { color: var(--ink); }
.callout {
  background: var(--surface); border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 10px; padding: 14px 18px; margin: 22px 0;
  font-size: 14.5px; color: var(--ink2);
}
.back { display: inline-block; margin-bottom: 28px; font-weight: 600; font-size: 14px; }

/* ---- footer ---- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 34px 24px;
  text-align: center;
  color: var(--ink2);
  font-size: 13.5px;
}
.site-footer a { color: var(--ink2); margin: 0 10px; font-weight: 600; }
.site-footer a:hover { color: var(--ink); }
.site-footer .copyright { margin-top: 14px; opacity: 0.8; }

@media (max-width: 620px) {
  .hero h1 { font-size: 34px; }
  .feature-grid { grid-template-columns: 1fr; }
  .nav a:first-child { margin-left: 0; }
}