:root {
  color-scheme: light dark;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --text: #111827;
  --muted: #5b6472;
  --border: #d8dee6;
  --accent: #0b6bcb;
  --accent-soft: #e8f2fc;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d10;
    --surface: #15181d;
    --text: #f3f4f6;
    --muted: #a8b0bd;
    --border: #2a313b;
    --accent: #5eb0ff;
    --accent-soft: #13283d;
    --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  background:
    radial-gradient(circle at top, color-mix(in srgb, var(--accent) 12%, transparent), transparent 42%),
    var(--bg);
  color: var(--text);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.hero {
  margin-bottom: 32px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.1;
}

.lead {
  margin: 0;
  max-width: 42rem;
  font-size: 1.05rem;
  color: var(--muted);
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.link-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 132px;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
  color: inherit;
  text-decoration: none;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background 140ms ease;
}

.link-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  background: color-mix(in srgb, var(--accent-soft) 55%, var(--surface));
}

.link-card:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 3px;
}

.link-card__title {
  font-size: 1.1rem;
  font-weight: 700;
}

.link-card__desc {
  font-size: 0.92rem;
  color: var(--muted);
}

.link-card__cta {
  margin-top: auto;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.footer-note {
  margin-top: 28px;
  font-size: 0.9rem;
  color: var(--muted);
}

.footer-note a {
  color: var(--accent);
}