/* ══════════════════════════════════════════
   Documentation Pages
   ══════════════════════════════════════════ */

/* Doc Hero — smaller than home hero */
.doc-hero {
  text-align: center;
  padding: 140px 40px 60px;
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.doc-hero .section-label {
  margin-bottom: 16px;
}

.doc-hero .section-title {
  margin-bottom: 16px;
}

.doc-hero .section-subtitle {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* Doc Layout — sidebar + content */
.doc-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 40px 100px;
  align-items: start;
}

/* Sidebar Navigation */
.doc-sidebar {
  position: sticky;
  top: 100px;
}

.doc-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.doc-sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-light-secondary);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.doc-sidebar-nav a:hover {
  background: var(--bg-dark-secondary);
  color: var(--text-light);
}

.doc-sidebar-nav a.active {
  background: rgba(59, 130, 246, 0.08);
  color: var(--accent-blue);
  font-weight: 600;
}

.doc-sidebar-nav a svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Doc Content Area */
.doc-content {
  min-width: 0;
}

.doc-content h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-light);
  margin-bottom: 16px;
  margin-top: 56px;
  line-height: 1.2;
}

.doc-content h2:first-child {
  margin-top: 0;
}

.doc-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 12px;
  margin-top: 40px;
  line-height: 1.3;
}

.doc-content p {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-light-secondary);
  margin-bottom: 16px;
}

.doc-content ul,
.doc-content ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.doc-content li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-light-secondary);
  margin-bottom: 8px;
}

.doc-content li strong {
  color: var(--text-light);
  font-weight: 600;
}

.doc-content a {
  color: var(--accent-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.doc-content a:hover {
  color: var(--text-light);
}

/* Doc Callout — highlighted info box */
.doc-callout {
  padding: 20px 24px;
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: 12px;
  margin: 24px 0;
}

.doc-callout p {
  margin-bottom: 0;
  color: var(--text-light);
  font-weight: 500;
  font-size: 14px;
}

.doc-callout p + p {
  margin-top: 8px;
}

/* Doc Badge — small label/tag */
.doc-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(59, 130, 246, 0.08);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.15);
  vertical-align: middle;
}

.doc-badge--green {
  background: rgba(16, 185, 129, 0.08);
  color: var(--green);
  border-color: rgba(16, 185, 129, 0.15);
}

.doc-badge--purple {
  background: rgba(139, 92, 246, 0.08);
  color: var(--accent-warm);
  border-color: rgba(139, 92, 246, 0.15);
}

/* Doc Cards — reuse integration-card pattern */
.doc-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 24px 0;
}

.doc-card {
  padding: 24px;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--card-radius);
  transition: border-color 0.3s;
}

.doc-card:hover {
  border-color: var(--border-dark-active);
}

.doc-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(59, 130, 246, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.doc-card-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent-blue);
}

.doc-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-light);
  margin: 0 0 8px;
}

.doc-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-light-secondary);
  margin: 0;
}

/* Doc Feature List — vertical items with icons */
.doc-feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 24px 0;
}

.doc-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px;
  background: var(--bg-dark-secondary);
  border: 1px solid var(--border-dark);
  border-radius: 12px;
}

.doc-feature-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--accent-blue);
  margin-top: 2px;
}

.doc-feature-item .doc-feature-text h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 4px;
}

.doc-feature-item .doc-feature-text p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-light-secondary);
  margin: 0;
}

/* Architecture Diagram */
.doc-diagram {
  padding: 32px;
  background: var(--bg-dark-secondary);
  border: 1px solid var(--border-dark);
  border-radius: var(--card-radius);
  margin: 24px 0;
  overflow-x: auto;
}

.doc-diagram svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

/* Flow Steps — numbered process */
.doc-flow {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 24px 0;
  position: relative;
}

.doc-flow::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--border-dark);
}

.doc-flow-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  position: relative;
}

.doc-flow-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-blue);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.doc-flow-step .doc-feature-text {
  padding-top: 8px;
}

/* Hub page cards */
.doc-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 40px 100px;
}

.doc-hub-card {
  padding: 32px 28px;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--card-radius);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.doc-hub-card:hover {
  border-color: var(--border-dark-active);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.doc-hub-card .doc-card-icon {
  margin-bottom: 20px;
}

.doc-hub-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.doc-hub-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-light-secondary);
  margin: 0;
  flex: 1;
}

.doc-hub-card .doc-hub-arrow {
  margin-top: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  gap: 6px;
}

.doc-hub-card .doc-hub-arrow svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s;
}

.doc-hub-card:hover .doc-hub-arrow svg {
  transform: translateX(3px);
}

/* Section divider in docs */
.doc-divider {
  height: 1px;
  background: var(--border-dark);
  margin: 8px 0;
}

/* Footer links */
.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-links a {
  font-size: 11px;
  color: var(--text-light-muted);
  text-decoration: none;
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.footer-links a:hover {
  color: var(--text-light);
}

.footer-link-sep {
  font-size: 11px;
  color: var(--text-light-muted);
}

/* ══════════════════════════════════════════
   Responsive — Documentation
   ══════════════════════════════════════════ */

@media (max-width: 900px) {
  .doc-hero {
    padding: 120px 30px 48px;
  }

  .doc-layout {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0 30px 80px;
  }

  .doc-sidebar {
    position: relative;
    top: auto;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-dark);
  }

  .doc-sidebar-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .doc-sidebar-nav a {
    padding: 8px 14px;
    font-size: 13px;
  }

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

  .doc-hub-grid {
    grid-template-columns: 1fr;
    padding: 0 30px 80px;
  }
}

@media (max-width: 600px) {
  .doc-hero {
    padding: 100px 20px 36px;
  }

  .doc-layout {
    padding: 0 20px 60px;
  }

  .doc-content h2 {
    font-size: 24px;
    margin-top: 40px;
  }

  .doc-content h3 {
    font-size: 18px;
    margin-top: 32px;
  }

  .doc-diagram {
    padding: 20px;
  }

  .doc-hub-grid {
    padding: 0 20px 60px;
  }

  .doc-hub-card {
    padding: 24px 20px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }
}