:root {
  --primary: #1b3a5c;
  --primary-dark: #0f2438;
  --primary-light: #2e5a87;
  --accent: #16a34a;
  --accent-dark: #15803d;
  --bg: #f5f3ef;
  --surface: #ffffff;
  --text: #1a2332;
  --text-secondary: #5c6b7a;
  --divider: #e4e0d8;
  --shadow: 0 4px 12px rgba(27, 58, 92, 0.08);
  --radius: 16px;
  --max-width: 760px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--primary-light);
  text-decoration: none;
}

a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.site-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 2.5rem 1.25rem 3rem;
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-header__logo {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  padding: 8px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__title {
  margin: 0;
  font-size: clamp(1.35rem, 4vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-header__subtitle {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.88);
  max-width: 36rem;
}

.site-main {
  max-width: var(--max-width);
  margin: -1.5rem auto 2.5rem;
  padding: 0 1.25rem;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem 1.35rem;
  margin-bottom: 1rem;
}

.card h1,
.card h2 {
  color: var(--primary);
  letter-spacing: -0.02em;
}

.card h1 {
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
}

.card h2 {
  margin: 1.75rem 0 0.65rem;
  font-size: 1.1rem;
}

.card p,
.card ul {
  margin: 0 0 1rem;
}

.card ul {
  padding-left: 1.25rem;
}

.card li + li {
  margin-top: 0.35rem;
}

.meta {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--divider);
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 1.25rem;
}

.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  border-radius: 12px;
  border: 1px solid var(--divider);
  background: var(--bg);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.link-card:hover {
  border-color: var(--primary-light);
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  text-decoration: none;
  color: var(--text);
}

.link-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(27, 58, 92, 0.08);
  display: grid;
  place-items: center;
  color: var(--primary);
  font-size: 1.15rem;
  flex-shrink: 0;
}

.link-card__text strong {
  display: block;
  color: var(--primary);
  font-weight: 600;
}

.link-card__text span {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

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

.btn--primary:hover {
  background: var(--accent-dark);
  color: #fff;
  text-decoration: none;
}

.btn--ghost {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid var(--divider);
}

.btn--ghost:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  text-decoration: none;
}

.site-footer {
  max-width: var(--max-width);
  margin: 0 auto 2rem;
  padding: 0 1.25rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

@media (max-width: 520px) {
  .site-header {
    padding: 2rem 1rem 2.5rem;
  }

  .site-header__inner {
    flex-direction: column;
    text-align: center;
  }

  .card {
    padding: 1.25rem 1rem;
  }
}