:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #1c1c1e;
  --muted: #6b6b76;
  --accent: #5856d6;
  --border: rgba(28, 28, 30, 0.08);
  --max: 44rem;
}
* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(88, 86, 214, 0.12), transparent 40%),
    radial-gradient(circle at top right, rgba(10, 132, 255, 0.08), transparent 35%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration: none; }
.wrap { width: min(100% - 2rem, var(--max)); margin: 0 auto; padding: 2.5rem 0 4rem; }
.site-header { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: 1.75rem; }
.brand { font-weight: 700; font-size: 1.05rem; letter-spacing: -0.02em; color: var(--text); text-decoration: none; }
.nav { display: flex; gap: 1rem; flex-wrap: wrap; font-size: 0.95rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 1.75rem 1.5rem; box-shadow: 0 10px 30px rgba(28, 28, 30, 0.04); }
h1 { margin: 0 0 0.35rem; font-size: clamp(1.75rem, 4vw, 2.25rem); letter-spacing: -0.03em; line-height: 1.2; }
.meta { color: var(--muted); margin: 0 0 1.5rem; font-size: 0.95rem; }
h2 { margin: 1.75rem 0 0.55rem; font-size: 1.15rem; letter-spacing: -0.02em; }
p, li { color: #2c2c34; }
ul { padding-left: 1.2rem; }
li + li { margin-top: 0.35rem; }
.hero-links { display: grid; gap: 0.85rem; margin-top: 1.5rem; }
.hero-link { display: block; padding: 1rem 1.1rem; border-radius: 14px; border: 1px solid var(--border); background: #fafafe; text-decoration: none; color: inherit; }
.hero-link strong { display: block; color: var(--accent); margin-bottom: 0.2rem; }
.hero-link span { color: var(--muted); font-size: 0.95rem; }
.footer { margin-top: 1.5rem; color: var(--muted); font-size: 0.9rem; }
@media (max-width: 560px) {
  .site-header { flex-direction: column; align-items: flex-start; }
  .card { padding: 1.35rem 1.1rem; }
}