:root {
  --bg: #fafaf7;
  --fg: #1d1d1b;
  --muted: #5d5d58;
  --card: #ffffff;
  --border: #e2e2dc;
  --accent: #b84a00;
  --accent-fg: #ffffff;
  --code-bg: #f0f0ea;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --fg: #ecece6;
    --muted: #a6a6a0;
    --card: #1f1f1c;
    --border: #34342f;
    --accent: #ff9a4d;
    --accent-fg: #161614;
    --code-bg: #2a2a26;
  }
}

@media (prefers-color-scheme: dark) {
  header .logo { filter: invert(1); }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main, header, footer {
  max-width: 62rem;
  margin: 0 auto;
  padding: 0 16px;
}

header { padding-top: 3rem; padding-bottom: 1rem; }
header .logo { display: block; width: 245px; max-width: 70%; height: auto; margin-bottom: 1.25rem; }
header h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.15; margin: 0 0 .5rem; }
.byline { color: var(--muted); margin: 0; }

h2 { font-size: 1.5rem; margin: 3rem 0 .75rem; }
h3 { font-size: 1.15rem; margin: 0 0 .5rem; }

a { color: var(--accent); }
code { background: var(--code-bg); padding: .1em .35em; border-radius: 4px; font-size: .9em; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
}

.card ul { padding-left: 1.2rem; margin: .5rem 0 0; }
.card li { margin-bottom: .3rem; }
.card figure { margin: 1rem 0 0; }
.card img { width: 100%; height: auto; border-radius: 6px; background: #fff; }
.card figcaption { color: var(--muted); font-size: .85rem; margin-top: .35rem; }

table { border-collapse: collapse; width: 100%; margin: .75rem 0; font-size: .95rem; }
th, td { text-align: left; padding: .4rem .6rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }

.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  text-decoration: none;
  font-weight: 600;
  padding: .6rem 1.1rem;
  border-radius: 8px;
  margin: .5rem 0;
}
.button:hover { filter: brightness(1.1); }

.note { color: var(--muted); font-size: .95rem; margin: .25rem 0 0; }

pre {
  background: var(--code-bg);
  padding: .9rem 1rem;
  border-radius: 8px;
  overflow-x: auto;
  font-size: .85rem;
}

footer { color: var(--muted); font-size: .9rem; padding-top: 2rem; padding-bottom: 3rem; }