:root {
  --primary: #6366f1;
  --primary-light: #818cf8;
  --violet: #8b5cf6;
  --bg: #0f172a;
  --card: #1e293b;
  --raised: #273449;
  --text: #f8fafc;
  --muted: #94a3b8;
  --line: #334155;
  --link: #a5b4fc;
  --f-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff; --card: #f8fafc; --raised: #f1f5f9;
    --text: #1e293b; --muted: #64748b; --line: #e2e8f0; --link: #4f46e5;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--f-sans); font-size: 18px; line-height: 1.62;
}
main, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
main { padding-top: 48px; }
a { color: var(--link); }
a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 3px; border-radius: 4px; }
.hero { display: flex; align-items: center; gap: 20px; margin-bottom: 28px; }
.mark { flex: none; }
h1 {
  margin: 0; font-size: clamp(2.4rem, 7vw, 3.4rem); line-height: 1.1; letter-spacing: -0.01em;
  color: var(--primary-light);
  background: linear-gradient(135deg, var(--primary), var(--violet));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.tagline { margin: 6px 0 0; font-size: 1.25rem; font-weight: 600; }
.standfirst { font-size: 1.15rem; color: var(--muted); margin: 0 0 40px; max-width: 58ch; }
.standfirst strong { color: var(--text); font-weight: 600; }
section { margin-bottom: 40px; }
h2 { font-size: 1.3rem; margin: 0 0 12px; }
p { margin: 0 0 14px; max-width: 64ch; }
ul { margin: 0; padding-left: 1.2em; }
li { margin-bottom: 6px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card {
  display: flex; flex-direction: column; gap: 6px; padding: 20px;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  color: var(--text); text-decoration: none;
}
.card:hover { border-color: var(--primary-light); background: var(--raised); }
.card .label {
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
}
.card .title { font-size: 1.2rem; font-weight: 700; }
.card .text { color: var(--muted); font-size: 1rem; }
.card .go { margin-top: auto; padding-top: 8px; color: var(--link); font-weight: 600; }
.note { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--primary);
  border-radius: 8px; padding: 18px 20px; }
.note p:last-child { margin-bottom: 0; }
footer { border-top: 1px solid var(--line); padding-top: 20px; padding-bottom: 40px;
  color: var(--muted); font-size: 0.9rem; text-align: center; }
footer p { margin: 0 auto 6px; }
@media (max-width: 480px) {
  .hero { gap: 14px; }
  .mark { width: 64px; height: 64px; }
}