/* Feature deep-dive pages — extends the site stylesheet (load style.css first).
   Long-form documentation layout: readable measure, sticky mini-TOC on wide
   screens, evidence tables, trail cards. Same ink-and-teal language. */

.doc {
  max-width: 880px;
  margin: 0 auto;
  padding: 118px 24px 80px;
}
.doc-kicker {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
}
.doc h1 {
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 10px 0 14px;
}
.doc .lede {
  color: var(--text-2);
  font-size: 18px;
  max-width: 60ch;
}
.doc h2 {
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 54px 0 10px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline);
}
.doc h3 { font-size: 19px; margin: 30px 0 8px; }
.doc p { color: var(--text-2); margin: 10px 0; max-width: 72ch; }
.doc p strong, .doc li strong { color: var(--text); font-weight: 600; }
.doc ul, .doc ol { color: var(--text-2); padding-left: 22px; margin: 10px 0; }
.doc li { margin: 6px 0; max-width: 70ch; }
.doc code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--panel-strong);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 1px 6px;
}
.doc a { color: var(--accent); text-decoration: none; }
.doc a:hover { text-decoration: underline; }

/* trail / evidence cards */
.trail-card {
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: var(--panel);
  padding: 18px 20px;
  margin: 16px 0;
}
.trail-card h3 { margin: 0 0 6px; display: flex; gap: 10px; align-items: baseline; }
.trail-card h3 .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 6px;
  padding: 2px 8px;
  white-space: nowrap;
}
.trail-card .why {
  border-left: 2px solid var(--accent);
  padding: 2px 0 2px 12px;
  margin: 10px 0;
  color: var(--text-2);
}
.trail-card .why b { color: var(--text); }

/* fact tables */
.doc table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  margin: 14px 0;
}
.doc th {
  text-align: left;
  color: var(--text-3);
  font-weight: 600;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 10px;
  border-bottom: 1px solid var(--hairline-strong);
}
.doc td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--hairline);
  color: var(--text-2);
  vertical-align: top;
}
.doc td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }

/* honest-limits callout */
.honest {
  border: 1px solid var(--hairline-strong);
  border-radius: 14px;
  padding: 16px 20px;
  margin: 22px 0;
  background: var(--panel);
}
.honest h3 { margin: 0 0 6px; color: var(--text); }
.honest p { margin: 6px 0; }

/* prev/next + hub links */
.doc-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 56px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline);
}
.doc-nav a {
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 8px 16px;
  color: var(--text-2);
  text-decoration: none;
  font-size: 14px;
}
.doc-nav a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* features hub grid */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
  margin-top: 26px;
}
.hub-card {
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: var(--panel);
  padding: 18px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.hub-card:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.hub-card b { color: var(--text); font-size: 17px; }
.hub-card span { color: var(--text-2); font-size: 14px; line-height: 1.5; }