:root {
  --paper: #f6f7f5; --sheet: #ffffff; --ink: #16201c; --muted: #5a6762; --rule: #d9dfdb;
  --accent: #0e6b4f; --accent-ink: #ffffff; --accent-soft: #e2f0ea;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #0f1513; --sheet: #151d1a; --ink: #e4ebe7; --muted: #9aa8a2; --rule: #2a3531;
          --accent: #4cc29a; --accent-ink: #08130f; --accent-soft: #163128; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
.wrap { max-width: 960px; margin: 0 auto; padding-inline: max(16px, env(safe-area-inset-left)) max(16px, env(safe-area-inset-right)); }
header { background: var(--sheet); border-bottom: 1px solid var(--rule); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; }
.logo { font: 700 1.3rem/1 "Bricolage Grotesque", system-ui, sans-serif; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; }
.logo span { color: var(--accent); }
.tag { font-size: 0.8rem; color: var(--muted); }
main { padding-block: 48px 64px; display: flex; flex-direction: column; gap: 48px; }
h1, h2 { font-family: "Bricolage Grotesque", system-ui, sans-serif; letter-spacing: -0.02em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.1; max-width: 22ch; }
h2 { font-size: 1.5rem; }
.lead { color: var(--muted); max-width: 62ch; margin: 16px 0 0; font-size: 1.08rem; }
.badge { display: inline-block; margin-top: 20px; padding: 6px 12px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 0.85rem; font-weight: 600; }
.grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); margin-top: 16px; }
.card { background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px; padding: 16px; }
.card b { display: block; margin-bottom: 4px; }
.card p, .card li { margin: 0; color: var(--muted); font-size: 0.95rem; }
.num { font: 500 0.75rem "IBM Plex Mono", ui-monospace, monospace; color: var(--accent); }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 20px; margin: 16px 0 0; }
dt { color: var(--muted); font-size: 0.9rem; }
dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
@media (max-width: 520px) { dl { grid-template-columns: 1fr; } dd { margin-bottom: 8px; } }
footer { border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.85rem; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding-block: 20px; }
.prose { max-width: 70ch; }
.prose h2 { margin-top: 28px; font-size: 1.2rem; }
.prose p, .prose li { color: var(--ink); }