:root {
  --bg: #f5f5f5;
  --card: #ffffff;
  --text: #222222;
  --muted: #666666;
  --border: #dddddd;
  --accent: #023059;
  --soft: #f0f2f4;
  --notice: #eef5fa;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

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

header {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 750;
  font-size: 1.08rem;
  letter-spacing: .01em;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: block;
  flex: 0 0 auto;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: .95rem;
}

.nav-links a {
  text-decoration: none;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 24px;
}

main.narrow {
  max-width: 800px;
}

.hero,
.card {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: 0 6px 24px rgba(0, 0, 0, .06);
}

.hero {
  border-radius: 16px;
  padding: 42px;
}

.card {
  border-radius: 14px;
  padding: 26px;
}

.document-card {
  border-radius: 16px;
  padding: 36px;
}

.hero-brand,
.document-header {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-brand {
  display: inline-flex;
  margin-bottom: 22px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .86rem;
}

.hero-brand img {
  width: 56px;
  height: 56px;
}

.document-header {
  margin-bottom: 18px;
}

.document-header img {
  width: 58px;
  height: 58px;
  flex: 0 0 auto;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
}

.document-header h1 {
  margin: 0;
  font-size: clamp(1.9rem, 5vw, 2.4rem);
  line-height: 1.15;
}

h2 {
  margin-top: 30px;
  font-size: 1.35rem;
}

.card h2 {
  margin-top: 0;
}

h3 {
  margin-top: 22px;
  font-size: 1.05rem;
}

.lead {
  font-size: 1.15rem;
  max-width: 760px;
}

.muted {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 650;
}

.button.secondary {
  background: var(--soft);
  color: var(--accent);
  border: 1px solid var(--border);
}

.notice {
  margin: 24px 0;
  padding: 16px 18px;
  border: 1px solid #c9dce9;
  border-radius: 12px;
  background: var(--notice);
}

.contact-box {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--soft);
}

ul {
  padding-left: 1.3rem;
}

li + li {
  margin-top: .35rem;
}

footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 40px;
  color: var(--muted);
  font-size: .9rem;
}

footer.narrow {
  max-width: 800px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.footer-brand img {
  width: 28px;
  height: 28px;
}

@media (max-width: 720px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .document-card {
    padding: 28px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .document-header {
    align-items: flex-start;
    flex-direction: column;
  }
}