:root {
  --navy: #0f2540;
  --teal: #0ea5a4;
  --teal-dark: #0b7d7c;
  --ink: #1a2330;
  --muted: #5a6b7b;
  --line: #e4e9ef;
  --bg-soft: #f5f8fa;
  --white: #ffffff;
  --maxw: 860px;
}

* { 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(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  color: var(--navy);
}
.brand .logo {
  height: 34px;
  width: auto;
  display: block;
}
.nav-links a { color: var(--muted); margin-left: 22px; font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--navy); text-decoration: none; }

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--navy) 0%, #16385e 100%);
  color: #fff;
  padding: 84px 24px;
  text-align: center;
}
.hero h1 { font-size: 42px; margin: 0 0 14px; font-weight: 800; letter-spacing: -0.5px; }
.hero p { font-size: 19px; color: #c9d6e4; max-width: 620px; margin: 0 auto 28px; }
.hero .tag { display:inline-block; font-size:13px; letter-spacing:1.5px; text-transform:uppercase; color:var(--teal); font-weight:700; margin-bottom:18px; }
.btn {
  display: inline-block;
  background: var(--teal);
  color: #fff;
  padding: 13px 26px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
}
.btn:hover { background: var(--teal-dark); text-decoration: none; }

/* Sections */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 56px 0; border-bottom: 1px solid var(--line); }
.section:last-child { border-bottom: none; }
.section h2 { font-size: 28px; color: var(--navy); margin: 0 0 18px; font-weight: 700; }
.section h3 { font-size: 18px; color: var(--navy); margin: 26px 0 6px; }
.section p, .section li { color: var(--ink); font-size: 16px; }
.lead { color: var(--muted); font-size: 17px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 26px; }
.step { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 12px; padding: 22px; }
.step .num { width: 30px; height: 30px; border-radius: 50%; background: var(--teal); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.step h4 { margin: 0 0 6px; color: var(--navy); font-size: 16px; }
.step p { margin: 0; font-size: 14px; color: var(--muted); }

.card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 24px;
  margin: 16px 0;
}
.card .label { font-weight: 700; color: var(--navy); }

/* Footer */
.site-footer {
  background: var(--navy);
  color: #aebdcc;
  padding: 40px 24px;
  font-size: 14px;
}
.footer-inner { max-width: var(--maxw); margin: 0 auto; display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; align-items: flex-start; }
.footer-inner a { color: #cfe0ef; }
.footer-brand { font-weight: 700; color: #fff; font-size: 16px; }
.footer-links a { margin-left: 18px; }

/* Legal / content pages */
.doc { padding: 48px 0 64px; }
.doc .back { font-size: 14px; }
.doc h1 { font-size: 34px; color: var(--navy); margin: 18px 0 4px; }
.doc .updated { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.doc h2 { font-size: 21px; color: var(--navy); margin: 32px 0 10px; }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 8px; }
.doc .faq-q { font-weight: 600; color: var(--navy); margin: 22px 0 4px; }
.doc hr { border: none; border-top: 1px solid var(--line); margin: 36px 0 18px; }
.doc .seealso { color: var(--muted); font-size: 14px; }

@media (max-width: 640px) {
  .hero h1 { font-size: 32px; }
  .steps { grid-template-columns: 1fr; }
  .nav-links a { margin-left: 14px; font-size: 14px; }
  .footer-links a { margin-left: 0; margin-right: 16px; }
}