/* page.css — Sub-page layout for content pages
   Loaded after shared.css so tokens are available.
   Wider max-width than landing, left-aligned, with nav header. */

body {
  margin: 0;
  padding: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Nav header ── */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-primary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav .nav-brand {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-green);
  text-decoration: none;
}

.site-nav .nav-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-nav .nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-nav .nav-links a:hover,
.site-nav .nav-links a[aria-current="page"] {
  color: var(--accent-green);
}

/* ── Page content ── */
.page {
  flex: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

.page h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem 0;
  color: var(--text-primary);
  text-wrap: balance;
}

.page .page-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin: 0 0 2.5rem 0;
  line-height: 1.6;
  max-width: 600px;
}

.page h2 {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem 0;
  letter-spacing: -0.01em;
}

.page h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2rem 0 0.75rem 0;
}

.page p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 1.25rem 0;
}

.page p strong {
  color: var(--text-primary);
  font-weight: 600;
}

.page ul,
.page ol {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 1.5rem 0;
  padding-left: 1.5rem;
}

.page li {
  margin-bottom: 0.5rem;
}

.page li strong {
  color: var(--text-primary);
}

.page a {
  color: var(--accent-green);
  text-decoration: none;
  font-weight: 500;
}

.page a:hover {
  color: var(--accent-green-hover);
  text-decoration: underline;
}

/* ── Code ── */
.page code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--bg-elevated);
  padding: 0.125rem 0.375rem;
  border-radius: 3px;
  color: var(--text-primary);
}

.page pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 0 0 1.5rem 0;
}

.page pre code {
  background: none;
  padding: 0;
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* ── Tables ── */
.page table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 0 0 1.5rem 0;
}

.page th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.page td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
  line-height: 1.5;
  color: var(--text-secondary);
}

.page td:first-child {
  color: var(--text-primary);
  font-weight: 500;
}

.page td strong {
  color: var(--text-primary);
}

.page tr:last-child td {
  border-bottom: none;
}

/* ── Cards grid (for primitive catalog) ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  margin: 0 0 2rem 0;
}

.card {
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.card .card-title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-green);
  margin-bottom: 0.375rem;
}

.card .card-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.card .card-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Callout ── */
.callout {
  padding: 1rem 1.25rem;
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent-green);
  border-radius: 0 6px 6px 0;
  margin: 0 0 1.5rem 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

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

/* ── CTA at bottom of page ── */
.page-cta {
  margin-top: 3rem;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  text-align: center;
}

.page-cta p {
  margin: 0 0 1rem 0;
  color: var(--text-primary);
  font-weight: 500;
}

.page-cta .cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  min-height: 44px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s ease;
  border: 1px solid var(--border-subtle);
}

.page-cta .cta-primary {
  background: var(--accent-green);
  color: #ffffff;
  border-color: var(--accent-green);
}

.page-cta .cta-primary:hover {
  background: var(--accent-green-hover);
  border-color: var(--accent-green-hover);
}

/* ── Footer (shared with landing) ── */
.footer {
  padding: 2rem 1.5rem;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  border-top: 1px solid var(--border-subtle);
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

.footer a:hover {
  color: var(--accent-green);
}

/* ── Mobile ── */
@media (max-width: 600px) {
  .site-nav {
    padding: 0.75rem 1rem;
  }

  .site-nav .nav-links {
    gap: 0.75rem;
  }

  .site-nav .nav-links a {
    font-size: 0.75rem;
  }

  .page {
    padding: 2rem 1rem 3rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }
}