/* ============================================================
   OBSERVANT — documentation pages
   Same warm editorial system as the landing + app.
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Spectral:ital,wght@0,300;0,400;0,500;0,600;1,400&family=Hanken+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --canvas:        oklch(0.985 0.006 78);
  --surface:       oklch(0.972 0.013 72);
  --panel:         oklch(0.992 0.004 80);
  --text-primary:  oklch(0.265 0.013 56);
  --text-secondary:oklch(0.445 0.012 56);
  --text-muted:    oklch(0.595 0.010 60);
  --border:        oklch(0.895 0.011 72);
  --border-strong: oklch(0.835 0.013 70);
  --accent:        oklch(0.575 0.118 41);
  --accent-hover:  oklch(0.515 0.118 41);
  --accent-soft:   oklch(0.93 0.030 50);
  --accent-tint:   oklch(0.955 0.018 52);
  --night:         oklch(0.255 0.018 58);

  --font-display: 'Spectral', Georgia, serif;
  --font-sans:    'Hanken Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body {
  font-family: var(--font-sans);
  background:
    radial-gradient(55% 38% at 50% 0%, oklch(0.955 0.018 52 / .65), transparent 70%),
    var(--canvas);
  color: var(--text-primary);
  font-size: 15.5px;
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.wordmark { display: inline-flex; align-items: baseline; font-family: var(--font-display); font-weight: 500; letter-spacing: -0.01em; color: var(--text-primary); font-size: 1.35rem; }
.wordmark .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); align-self: center; margin-left: 3px; display: inline-block; }
.eyebrow { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 500; }

.doc-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem clamp(1.25rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--border);
}
.doc-top nav { display: flex; gap: 1.2rem; font-size: 0.88rem; }
.doc-top nav a { color: var(--text-secondary); }
.doc-top nav a:hover { color: var(--text-primary); }

.doc-main {
  width: min(760px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding-block: clamp(2rem, 6vw, 3.5rem) 3rem;
}
.doc-main h1 {
  margin-top: 0.9rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 4.5vw, 2.8rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.doc-lead { margin-top: 1rem; font-size: 1.05rem; color: var(--text-secondary); max-width: 60ch; }
.doc-main h2 {
  margin-top: 2.6rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.45rem;
}
.doc-main h3 { margin-top: 1.6rem; font-size: 1.02rem; }
.doc-main p { margin-top: 0.8rem; color: var(--text-secondary); }
.doc-main p b, .doc-main li b { color: var(--text-primary); }
.doc-main ul { margin-top: 0.8rem; padding-left: 1.2rem; color: var(--text-secondary); }
.doc-main li { margin-top: 0.45rem; }

.doc-table { width: 100%; margin-top: 1rem; border-collapse: collapse; font-size: 0.92rem; }
.doc-table th, .doc-table td { text-align: left; padding: 0.7rem 0.9rem; border: 1px solid var(--border); vertical-align: top; }
.doc-table th { background: var(--surface); font-size: 0.8rem; font-family: var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); font-weight: 500; }
.doc-table td { background: var(--panel); color: var(--text-secondary); }
.doc-table td b { color: var(--text-primary); }

.doc-code {
  margin-top: 1rem;
  background: var(--night);
  color: oklch(0.93 0.01 80);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
}
.doc-code .c { color: oklch(0.68 0.02 80); }

.doc-callout {
  margin-top: 1.2rem;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
  background: var(--panel);
  font-size: 0.92rem;
  color: var(--text-secondary);
}
.doc-callout b { color: var(--text-primary); }

.doc-grid {
  margin-top: 1.6rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 640px) { .doc-grid { grid-template-columns: 1fr; } }
.doc-card {
  display: block;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  color: inherit;
  transition: transform .2s cubic-bezier(.2,.7,.3,1), border-color .18s;
}
a.doc-card:hover { transform: translateY(-2px); border-color: var(--border-strong); color: inherit; }
.doc-card h3 { margin: 0.5rem 0 0; font-family: var(--font-display); font-weight: 500; font-size: 1.15rem; }
.doc-card p { margin-top: 0.4rem; font-size: 0.88rem; color: var(--text-secondary); }
.doc-card .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent);
}
.doc-card.soon { opacity: 0.62; }
.doc-card.soon .tag { background: var(--surface); color: var(--text-muted); border: 1px dashed var(--border-strong); }

.doc-foot {
  border-top: 1px solid var(--border);
  padding: 1.4rem clamp(1.25rem, 4vw, 2.5rem) 2rem;
  font-size: 0.84rem;
  color: var(--text-muted);
  text-align: center;
}