:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --text: #1f2937;
  --muted: #5b6472;
  --card: #ffffff;
  --line: #d9dee8;
  --accent: #1f4f8f;
  --accent-dark: #173b6b;
}

* {
  box-sizing: border-box;
}

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

a {
  color: inherit;
}

.container {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  padding: 80px 0 64px;
  background: linear-gradient(135deg, #ffffff, #e8eef8);
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 1.1;
}

h2 {
  margin: 0 0 20px;
  font-size: 2rem;
}

h3 {
  margin: 0 0 12px;
  font-size: 1.5rem;
}

.lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.actions,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
}

.button:hover {
  background: var(--accent-dark);
}

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

.section {
  padding: 56px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.tags li {
  padding: 8px 12px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid var(--line);
  color: var(--muted);
}

.card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--card);
  box-shadow: 0 18px 40px rgba(31, 41, 55, 0.08);
}

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

.site-footer {
  padding: 32px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 720px) {
  .site-header {
    padding: 56px 0 44px;
  }

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