:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #1c1b19;
  --ink-2: #4a4844;
  --muted: #78756e;
  --line: #e4e0d8;
  --accent: #2f6b4f;
  --accent-soft: #e8f1eb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181a;
    --surface: #1f2124;
    --ink: #ecebe8;
    --ink-2: #bfbdb7;
    --muted: #8d8b85;
    --line: #303338;
    --accent: #7fc4a1;
    --accent-soft: #1d2c25;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 940px; margin: 0 auto; padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 650; font-size: 18px; color: var(--ink); letter-spacing: -0.01em; }
.nav nav { display: flex; gap: 22px; align-items: center; font-size: 15px; }
.nav nav a { color: var(--ink-2); }
.nav nav a.ghost {
  border: 1px solid var(--line); border-radius: 6px; padding: 5px 12px; color: var(--ink);
}

main { max-width: 940px; margin: 0 auto; padding: 0 24px 72px; }

.hero { padding: 64px 0 52px; }
.kicker {
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 16px;
}
h1 {
  font-size: clamp(30px, 5vw, 44px); line-height: 1.15; letter-spacing: -0.025em;
  font-weight: 640; margin: 0 0 20px; text-wrap: balance;
}
.lede { font-size: 18px; color: var(--ink-2); max-width: 60ch; margin: 0 0 28px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 7px;
  background: var(--accent); color: var(--bg); font-weight: 550; font-size: 15px;
}
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn:hover { text-decoration: none; opacity: 0.92; }

.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px;
  overflow: hidden;
}
.grid article { background: var(--surface); padding: 24px; }
.grid h2 { font-size: 16px; margin: 0 0 10px; letter-spacing: -0.01em; }
.grid p { margin: 0; color: var(--ink-2); font-size: 15px; }

.note {
  margin-top: 44px; padding: 22px 24px;
  background: var(--accent-soft); border-radius: 8px;
}
.note h2 { font-size: 15px; margin: 0 0 8px; }
.note p { margin: 0; color: var(--ink-2); font-size: 15px; }

.prose { padding: 44px 0; max-width: 68ch; }
.prose h1 { font-size: 32px; }
.prose h2 { font-size: 19px; margin: 36px 0 10px; letter-spacing: -0.01em; }
.prose code {
  font: 13px/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 4px; padding: 1px 5px;
}
.prose pre {
  background: var(--surface); border: 1px solid var(--line); border-radius: 7px;
  padding: 14px 16px; overflow-x: auto;
}
.prose pre code { border: 0; background: none; padding: 0; }
.prose ul { color: var(--ink-2); padding-left: 20px; }
.prose p { color: var(--ink-2); }

.log { border-left: 2px solid var(--line); padding-left: 20px; margin-top: 32px; }
.log h3 { font-size: 15px; margin: 0 0 4px; }
.log time { font-size: 13px; color: var(--muted); }
.log section { margin-bottom: 30px; }
.log ul { margin: 8px 0 0; }

footer {
  border-top: 1px solid var(--line); padding: 24px;
  text-align: center; color: var(--muted); font-size: 14px;
}
footer p { margin: 0; }