/* Genefold docs/research/products — shared prose styles
   Relies on tokens from style.css (dark spectral theme). */

.docs-root .site-shell { padding-bottom: 2rem; }

/* ── Primary navigation ─────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 16, 32, 0.82);
  backdrop-filter: blur(16px);
}

.site-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
}

.site-nav__brand svg { color: var(--primary); }

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
}

.site-nav__links a {
  display: inline-flex;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.15s, background 0.15s;
}

.site-nav__links a:hover,
.site-nav__links a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

/* ── Breadcrumb ─────────────────────────────────────────────── */
.breadcrumb { padding: 1.1rem 0 0; }

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  max-width: 780px;
  margin: 0 auto;
  padding: 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.76rem;
  color: var(--muted);
}

.breadcrumb li { display: inline-flex; align-items: center; gap: 0.35rem; }
.breadcrumb li + li::before { content: '/'; opacity: 0.45; margin-right: 0.35rem; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover, .breadcrumb a:focus-visible { color: var(--primary); }
.breadcrumb [aria-current="page"] { color: var(--text); }

/* ── Document page ──────────────────────────────────────────── */
.doc-page {
  max-width: 780px;
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.doc-hero {
  max-width: 780px;
  margin: 0 auto;
  padding: 2rem 0 1.5rem;
}

.doc-hero h1 {
  max-width: 24ch;
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin: 0 0 1rem;
}

.doc-hero__lede {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 62ch;
  margin: 0;
}

.doc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.74rem;
  color: var(--muted);
}

.doc-hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* ── Definition callout ─────────────────────────────────────── */
.definition {
  margin: 1.5rem 0 2rem;
  padding: 1.1rem 1.4rem;
  border: 1px solid rgba(104, 240, 211, 0.25);
  border-radius: 12px;
  background: rgba(104, 240, 211, 0.05);
  font-size: 1rem;
  line-height: 1.7;
}

.definition strong { color: var(--primary); }

/* ── Prose ──────────────────────────────────────────────────── */
.doc-page h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  margin: 2.6rem 0 0.9rem;
  scroll-margin-top: 5rem;
}

.doc-page h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  margin: 2rem 0 0.7rem;
  scroll-margin-top: 5rem;
}

.doc-page p, .doc-page li {
  font-size: 0.97rem;
  line-height: 1.75;
  color: #c7d2ee;
}

.doc-page p { margin: 0 0 1.1rem; max-width: 70ch; }
.doc-page ul, .doc-page ol { padding-left: 1.4rem; }
.doc-page li { margin-bottom: 0.5rem; }

.doc-page a:not(.button) {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: rgba(104, 240, 211, 0.35);
  text-underline-offset: 2px;
}

.doc-page a:not(.button):hover, .doc-page a:not(.button):focus-visible {
  text-decoration-color: currentColor;
}

.doc-page code {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.85em;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 5px;
  padding: 0.12em 0.4em;
}

.doc-page pre {
  overflow-x: auto;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(4, 9, 20, 0.7);
  font-size: 0.85rem;
  line-height: 1.6;
}

.doc-page pre code {
  background: transparent;
  border: 0;
  padding: 0;
  font-size: inherit;
}

.doc-page blockquote {
  margin: 1.5rem 0;
  padding: 0.2rem 1.2rem;
  border-left: 3px solid var(--line-strong);
  color: var(--muted);
}

/* ── Data tables ────────────────────────────────────────────── */
.doc-table-wrap { overflow-x: auto; margin: 1.5rem 0; }

.doc-page table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  line-height: 1.5;
  min-width: 560px;
}

.doc-page th, .doc-page td {
  text-align: left;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  vertical-align: top;
}

.doc-page th {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(104, 240, 211, 0.06);
}

.doc-page tbody tr:nth-child(even) { background: rgba(255, 255, 255, 0.025); }

/* ── Formula block ──────────────────────────────────────────── */
.formula {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.9rem;
  padding: 1rem 1.25rem;
  margin: 1.2rem 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(4, 9, 20, 0.55);
  overflow-x: auto;
}

/* ── Callouts ───────────────────────────────────────────────── */
.callout {
  margin: 1.8rem 0;
  padding: 1rem 1.3rem;
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  border-radius: 12px;
  background: rgba(var(--accent-rgb), 0.06);
  font-size: 0.92rem;
  line-height: 1.65;
}

.callout h3 {
  margin: 0 0 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ── FAQ ────────────────────────────────────────────────────── */
.doc-page details {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.9rem 1.2rem;
  margin-bottom: 0.8rem;
  background: rgba(255, 255, 255, 0.03);
}

.doc-page summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
}

/* ── Related / card grids ───────────────────────────────────── */
.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: 1.1rem;
  margin: 1.6rem 0;
}

.doc-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.2rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  transition: border-color 0.2s ease, translate 0.2s ease;
}

.doc-card:focus-visible {
  border-color: var(--line-strong);
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
  .doc-card:hover {
    border-color: var(--line-strong);
    translate: 0 -2px;
  }
}

.doc-card__kicker {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--primary);
}

.doc-card h2, .doc-card h3 {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.08rem;
  line-height: 1.3;
}

.doc-card p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--muted);
}

.related-links {
  margin: 2.6rem 0 0;
  padding: 1.3rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.related-links h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}

.related-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.9rem;
}

/* ── Glossary entries ───────────────────────────────────────── */
.glossary-term {
  border-top: 1px solid var(--line);
  padding: 1.6rem 0;
  scroll-margin-top: 5rem;
}

.glossary-term h2 { margin: 0 0 0.6rem; font-size: 1.25rem; }

.glossary-term .glossary-see {
  font-size: 0.82rem;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* ── Hero-list pages (index) ────────────────────────────────── */
.doc-hero--section { padding-bottom: 1rem; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 760px) {
  .breadcrumb,
  .doc-hero,
  .doc-page {
    padding-inline: 0.75rem;
  }
}

@media (max-width: 640px) {
  .site-nav { flex-wrap: wrap; }
  .site-nav__links { width: 100%; }
  .doc-page { padding: 1.5rem 0 3rem; }
  .doc-hero h1 { font-size: clamp(1.7rem, 7vw, 2.4rem); }
}

@media (prefers-reduced-motion: reduce) {
  .doc-card, .site-nav__links a { transition: none; }
}