:root {
  color-scheme: light dark;
  --bg: #f8f9fb;
  --text: #1c1c1e;
  --muted: #5f6368;
  --accent: #0a7cff;
  --card: #ffffff;
  font-size: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #f1f3f4;
    --muted: #b0b3b8;
    --card: #1f1f1f;
  }
}

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

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero {
  background: linear-gradient(135deg, #004e92, #000428);
  color: #fff;
  padding: 4rem 0 3rem;
  text-align: center;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 2.75rem);
}

main {
  padding: 3rem 0 5rem;
}

section {
  background-color: var(--card);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

section h2 {
  margin-top: 0;
  font-size: 1.5rem;
  color: var(--accent);
}

ul {
  padding-left: 1.25rem;
}

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

a:hover,
a:focus {
  text-decoration: underline;
}

.footer {
  text-align: center;
  padding: 2rem 0;
  background: var(--card);
  color: var(--muted);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}