:root {
  --bg: #f4f2ee;
  --card: #ffffff;
  --text: #1c1c1e;
  --muted: #636366;
  --steel: #4a6670;
  --steel-deep: #2f4852;
  --steel-light: #d9e4e8;
  --accent: #5c7a86;
  --border: rgba(60, 60, 67, 0.12);
  --radius: 14px;
  --shadow: 0 8px 28px rgba(28, 28, 30, 0.08);
  --max: 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(--text);
  background: linear-gradient(180deg, #eef2f4 0%, var(--bg) 220px, var(--bg) 100%);
  line-height: 1.65;
}

a {
  color: var(--steel-deep);
}

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

.site-header {
  background: linear-gradient(135deg, var(--steel-deep), var(--steel));
  color: #fff;
  padding: 48px 20px 56px;
}

.site-header .inner {
  max-width: var(--max);
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.14);
  display: grid;
  place-items: center;
  font-size: 22px;
}

.brand h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand p {
  margin: 4px 0 0;
  font-size: 0.95rem;
  color: var(--steel-light);
}

main {
  max-width: var(--max);
  margin: -28px auto 48px;
  padding: 0 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 28px 32px;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.card .meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.card h3 {
  margin: 28px 0 10px;
  font-size: 1.05rem;
  color: var(--steel-deep);
}

.card p,
.card li {
  color: #2c2c2e;
}

.card ul {
  padding-left: 1.2rem;
}

.card li + li {
  margin-top: 8px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--steel);
  color: #fff;
}

.btn-secondary {
  background: var(--steel-light);
  color: var(--steel-deep);
}

.contact-box {
  margin-top: 20px;
  padding: 18px 20px;
  border-radius: 12px;
  background: #f7f9fa;
  border: 1px solid var(--border);
}

.contact-box strong {
  display: block;
  margin-bottom: 6px;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto 40px;
  padding: 0 20px;
  color: var(--muted);
  font-size: 0.875rem;
  text-align: center;
}

@media (max-width: 600px) {
  .site-header {
    padding: 36px 16px 44px;
  }

  .card {
    padding: 22px 18px 26px;
  }
}