:root {
  --navy: #1f3a5f;
  --navy-dark: #16304f;
  --accent: #2e7d6b;
  --bg: #f7f9fb;
  --ink: #233040;
  --muted: #5b6b7b;
  --line: #e2e8ef;
  --max: 1080px;
}

* { 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;
}

a { color: var(--accent); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }

/* Header */
header.site {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
header.site .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  max-width: var(--max);
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 10px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--navy); }
.brand .mark {
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--navy); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 18px;
  letter-spacing: 0.5px;
}
.brand .name { font-weight: 700; font-size: 17px; line-height: 1.2; }
.brand .name small { display: block; font-weight: 500; font-size: 12px; color: var(--muted); }
nav.main a {
  color: var(--ink); text-decoration: none; font-weight: 500;
  margin-left: 20px; font-size: 15px;
}
nav.main a:hover { color: var(--accent); }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: #fff;
  padding: 84px 0;
}
.hero h1 { font-size: 40px; margin: 0 0 14px; line-height: 1.15; }
.hero p { font-size: 19px; color: #d4dde8; max-width: 640px; margin: 0 0 28px; }
.btn {
  display: inline-block; background: var(--accent); color: #fff;
  text-decoration: none; padding: 13px 26px; border-radius: 8px;
  font-weight: 600; font-size: 16px;
}
.btn:hover { background: #25655627; background: #256556; }
.btn.ghost { background: transparent; border: 1.5px solid #ffffff66; margin-left: 12px; }

/* Sections */
section.block { padding: 64px 0; }
section.block.alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2 { font-size: 28px; color: var(--navy); margin: 0 0 8px; }
.lead { color: var(--muted); font-size: 17px; max-width: 720px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 36px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 26px;
}
section.block.alt .card { background: var(--bg); }
.card h3 { margin: 0 0 8px; color: var(--navy); font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* Content pages */
.doc { background: #fff; }
.doc .wrap { padding-top: 48px; padding-bottom: 64px; max-width: 820px; }
.doc h1 { color: var(--navy); font-size: 32px; margin: 0 0 6px; }
.doc .updated { color: var(--muted); font-size: 14px; margin: 0 0 28px; }
.doc h2 { font-size: 21px; margin: 34px 0 6px; }
.doc p, .doc li { color: var(--ink); }
.doc ul { padding-left: 22px; }
.callout {
  background: #eef4f2; border-left: 4px solid var(--accent);
  padding: 16px 20px; border-radius: 0 8px 8px 0; margin: 22px 0;
}
.callout strong { color: var(--navy); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 30px; }
.contact-grid .card { padding: 28px; }
.contact-grid .label { font-size: 13px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin: 0 0 4px; }
.contact-grid .val { font-size: 18px; font-weight: 600; color: var(--navy); }

/* Footer */
footer.site {
  background: var(--navy-dark); color: #c7d2de; padding: 40px 0; font-size: 14px;
}
footer.site .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 18px; }
footer.site a { color: #fff; text-decoration: none; margin-left: 18px; }
footer.site a:first-child { margin-left: 0; }
footer.site .legal { color: #8ea0b3; max-width: 520px; }

@media (max-width: 760px) {
  .grid, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding: 60px 0; }
  .hero h1 { font-size: 30px; }
  nav.main a { margin-left: 14px; }
  .btn.ghost { margin-left: 0; margin-top: 10px; }
}