:root {
  color-scheme: dark;
  --bg: #090909;
  --surface: #151515;
  --border: #292929;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --accent: #6ee7b7;
  --danger: #fb7185;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 80px;
}

header { margin-bottom: 28px; }

.brand {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1 {
  margin: 8px 0;
  font-size: clamp(30px, 7vw, 48px);
  line-height: 1.1;
  letter-spacing: -.035em;
}

h2 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.35;
}

p, li { color: var(--muted); }

a { color: var(--accent); }

.updated { margin: 0; font-size: 14px; }

.summary {
  color: var(--text);
  font-size: 18px;
  margin: 24px 0 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: clamp(20px, 5vw, 34px);
}

section + section {
  border-top: 1px solid var(--border);
  margin-top: 28px;
  padding-top: 28px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--accent);
  color: #07110e;
  font-weight: 800;
  padding: 10px 22px;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.warning {
  border-left: 3px solid var(--danger);
  color: var(--text);
  padding-left: 16px;
}

footer {
  color: var(--muted);
  font-size: 14px;
  margin-top: 28px;
  text-align: center;
}

@media (max-width: 520px) {
  main { padding-top: 28px; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
}