:root {
  color-scheme: light;
  --ink: #1b1b1f;
  --muted: #666671;
  --line: #e7e7eb;
  --surface: #ffffff;
  --soft: #f7f7f9;
  --accent: #2563eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--soft);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }

.site-header, main, .site-footer {
  width: min(100% - 40px, 760px);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
}

.brand { color: var(--ink); font-size: 1.1rem; font-weight: 750; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 16px; }
nav a { color: var(--muted); font-size: .94rem; text-decoration: none; }
nav a:hover { color: var(--ink); text-decoration: underline; }

main {
  margin-bottom: 30px;
  padding: clamp(28px, 6vw, 56px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgb(20 20 30 / 4%);
}

.eyebrow { color: var(--accent); font-size: .84rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
h1, h2 { letter-spacing: -.025em; line-height: 1.2; }
h1 { margin: 8px 0 14px; font-size: clamp(2rem, 6vw, 3.3rem); }
h2 { margin-top: 2.3em; font-size: 1.3rem; }
h2:first-of-type { margin-top: 1.7em; }
p, li { max-width: 68ch; }
ul { padding-left: 1.25em; }
.lede { color: var(--muted); font-size: 1.15rem; }
.meta { color: var(--muted); font-size: .92rem; }
.callout { margin-top: 28px; padding: 18px 20px; background: #eff6ff; border-radius: 12px; }
.link-list { display: grid; gap: 12px; margin-top: 28px; }
.link-card { display: block; padding: 18px; color: var(--ink); background: var(--soft); border: 1px solid var(--line); border-radius: 12px; text-decoration: none; }
.link-card strong, .link-card span { display: block; }
.link-card span { color: var(--muted); font-size: .94rem; }
.site-footer { padding: 0 0 36px; color: var(--muted); font-size: .88rem; }
.site-footer p { margin: 0; }

@media (max-width: 560px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: 8px; }
  main { padding: 28px 22px; border-radius: 14px; }
}