:root {
  --navy: #0d1f33;
  --navy-mid: #102a43;
  --navy-light: #17496b;
  --green: #4ad2a0;
  --green-soft: #e9fbf4;
  --ink: #102a43;
  --muted: #5f7384;
  --line: #dce6ed;
  --surface: #ffffff;
  --background: #f5f8fa;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--background);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

a {
  color: #087d60;
}

a:hover {
  color: #075e49;
}

.site-header {
  color: #fff;
  background: linear-gradient(135deg, var(--navy-mid), var(--navy-light));
}

.nav-wrap {
  width: min(100% - 40px, 1040px);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.03em;
}

.brand span {
  color: var(--green);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a {
  color: #e8f0f7;
  font-size: 0.94rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--green);
}

.hero {
  padding: 76px 20px 82px;
  text-align: center;
}

.hero-inner {
  width: min(100%, 820px);
  margin: 0 auto;
}

.eyebrow {
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 14px 0 16px;
  color: #fff;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.hero p {
  max-width: 680px;
  margin: 0 auto;
  color: #d9e5ed;
  font-size: 1.08rem;
}

main {
  width: min(100% - 40px, 920px);
  margin: -34px auto 72px;
}

.content-card {
  padding: clamp(28px, 5vw, 58px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 18px 50px rgba(13, 31, 51, 0.08);
}

.content-card h2 {
  margin: 38px 0 10px;
  color: var(--navy);
  font-size: 1.45rem;
  line-height: 1.25;
}

.content-card h2:first-child {
  margin-top: 0;
}

.content-card h3 {
  margin: 24px 0 8px;
  color: var(--navy);
  font-size: 1.08rem;
}

.content-card p,
.content-card li {
  color: var(--muted);
}

.content-card ul {
  padding-left: 22px;
}

.notice {
  margin: 28px 0;
  padding: 18px 20px;
  color: #315a4d;
  background: var(--green-soft);
  border-left: 4px solid var(--green);
  border-radius: 10px;
}

.updated {
  margin-top: 34px;
  padding-top: 20px;
  color: #8293a0;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

.site-footer {
  padding: 32px 20px;
  color: #b7c8d4;
  background: var(--navy);
  text-align: center;
  font-size: 0.9rem;
}

.footer-links {
  margin: 0 0 10px;
}

.footer-links a {
  margin: 0 8px;
  color: var(--green);
  text-decoration: none;
}

.site-footer p {
  margin: 8px 0 0;
}

@media (max-width: 680px) {
  .nav-wrap {
    width: min(100% - 28px, 1040px);
    align-items: flex-start;
    padding: 18px 0;
  }

  .site-nav {
    align-items: flex-end;
    flex-direction: column;
    gap: 4px;
  }

  .hero {
    padding: 56px 20px 66px;
    text-align: left;
  }

  .hero p {
    margin: 0;
  }

  main {
    width: min(100% - 24px, 920px);
    margin-top: -24px;
  }

  .content-card {
    border-radius: 16px;
  }
}