* {
  box-sizing: border-box;
}

:root {
  color-scheme: light dark;
  --bg: #f3f7fb;
  --surface: #ffffff;
  --surface-muted: #eef4ff;
  --text: #132238;
  --muted: #526273;
  --border: #d8e3ef;
  --primary: #173d7a;
  --primary-soft: #dfeaff;
  --accent: #149b57;
  --shadow: 0 18px 40px rgba(18, 34, 56, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1622;
    --surface: #132031;
    --surface-muted: #1a2b40;
    --text: #eff4fb;
    --muted: #b4c3d4;
    --border: #29405b;
    --primary: #9fc1ff;
    --primary-soft: #1b3152;
    --accent: #57d494;
    --shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
  }
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: linear-gradient(180deg, var(--surface-muted) 0%, var(--bg) 180px);
  color: var(--text);
  line-height: 1.65;
}

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

.page {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 20px 72px;
}

.hero,
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 32px;
  margin-bottom: 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.92rem;
}

.hero h1 {
  margin: 18px 0 10px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
}

.hero p.lead {
  margin: 0;
  max-width: 58rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.meta {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.nav a,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}

.nav a.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.card {
  padding: 22px;
}

.card h2,
.card h3 {
  margin-top: 0;
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

section.card {
  margin-top: 18px;
}

ul {
  padding-left: 20px;
}

.note {
  border-left: 4px solid var(--accent);
  background: rgba(20, 155, 87, 0.08);
  border-radius: 16px;
  padding: 16px 18px;
}

.footer {
  margin-top: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}