/* Documentation page */

.documentation-hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0 72px;
  color: #fff;
  background-size: cover;
  background-position: center;
}

.documentation-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(130deg, rgba(7, 46, 94, 0.92) 0%, rgba(15, 99, 173, 0.82) 55%, rgba(0, 167, 214, 0.58) 100%),
    radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.16), transparent 30%),
    radial-gradient(circle at 82% 25%, rgba(255, 255, 255, 0.12), transparent 26%);
}

.documentation-hero .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 28, 56, 0.16), rgba(5, 28, 56, 0.42));
}

.documentation-hero .container,
.documentation-hero .hero-content {
  position: relative;
  z-index: 1;
}

.documentation-hero .hero-content {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}

.hero-breadcrumb,
.overview-label,
.section-kicker,
.aside-label,
.feature-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.documentation-hero h1 {
  margin: 20px 0 14px;
  font-size: clamp(2.7rem, 4.8vw, 4.4rem);
  line-height: 1.02;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: #fff;
}

.documentation-hero .lead {
  max-width: 770px;
  margin: 0 auto;
  font-size: 18px;
  line-height: 1.78;
  color: rgba(255, 255, 255, 0.92);
}

.documentation-intro.section,
.documentation-grid.section {
  background:
    radial-gradient(circle at top left, rgba(15, 99, 173, 0.08), transparent 32%),
    linear-gradient(180deg, #f4f8fc 0%, #f9f4ec 100%);
}

.documentation-intro.section {
  padding: 0 0 30px;
}

.documentation-grid.section {
  padding: 0 0 72px;
}

.documentation-intro .container {
  margin-top: -34px;
}

.documentation-overview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 26px;
}

.overview-card,
.doc-lead-panel,
.featured-doc-card,
.doc-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(17, 82, 147, 0.08);
  border-radius: 24px;
  box-shadow: 0 24px 60px rgba(18, 44, 79, 0.08);
}

.overview-card {
  position: relative;
  overflow: hidden;
  padding: 24px;
}

.overview-card::after {
  content: '';
  position: absolute;
  right: -22px;
  bottom: -22px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 167, 214, 0.18), rgba(0, 167, 214, 0));
}

.overview-card strong {
  display: block;
  margin-bottom: 10px;
  color: #12304f;
  font-size: 1.5rem;
  line-height: 1.08;
}

.overview-card p,
.lead-copy p,
.lead-points li,
.featured-body p,
.doc-excerpt,
.section-heading p {
  margin: 0;
  color: #566577;
  line-height: 1.78;
}

.doc-lead-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.85fr);
  gap: 22px;
  padding: 28px;
  margin-bottom: 26px;
}

.lead-copy h2,
.section-heading h3 {
  margin: 0 0 12px;
  color: #12304f;
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.lead-aside {
  padding: 22px;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(241, 247, 255, 0.95), rgba(255, 255, 255, 0.98));
  border: 1px solid rgba(17, 82, 147, 0.08);
}

.lead-points {
  list-style: none;
  margin: 0;
  padding: 0;
}

.lead-points li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
}

.lead-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00a7d6;
}

.featured-docs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.featured-doc-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.featured-thumb {
  height: 220px;
  background-size: cover;
  background-position: center;
}

.featured-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.feature-meta {
  width: fit-content;
  background: rgba(15, 99, 173, 0.08);
  border-color: rgba(15, 99, 173, 0.12);
  color: #0f63ad;
}

.featured-body h3,
.doc-title {
  margin: 0;
  color: #12304f;
  font-size: 1.15rem;
  line-height: 1.35;
}

.featured-body h3 a,
.doc-title a {
  color: inherit;
  text-decoration: none;
}

.featured-actions,
.doc-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.section-heading {
  margin-bottom: 20px;
}

.doc-library-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.doc-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.doc-thumb-link {
  display: block;
}

.doc-thumb {
  height: 210px;
  background-size: cover;
  background-position: center;
}

.doc-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.doc-meta {
  color: #0f63ad;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.doc-excerpt {
  font-size: 14px;
}

.featured-actions .btn,
.doc-actions .btn {
  flex: 1;
  border: none;
  border-radius: 999px;
  padding: 13px 16px;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
}

.featured-actions .btn-primary,
.doc-actions .btn-primary {
  background: linear-gradient(135deg, #0f63ad, #00a7d6);
  color: #fff;
  box-shadow: 0 16px 30px rgba(15, 99, 173, 0.2);
}

.featured-actions .btn-outline-primary,
.doc-actions .btn-outline-primary {
  background: rgba(15, 99, 173, 0.08);
  color: #0f63ad;
  border: 1px solid rgba(15, 99, 173, 0.12);
}

@media (max-width: 1199px) {
  .documentation-overview,
  .featured-docs,
  .doc-library-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 767px) {
  .documentation-hero {
    padding: 64px 0 50px;
  }

  .documentation-hero h1 {
    font-size: 2.4rem;
  }

  .documentation-hero .lead {
    font-size: 16px;
  }

  .documentation-intro .container {
    margin-top: -16px;
  }

  .documentation-overview,
  .featured-docs,
  .doc-library-grid {
    grid-template-columns: 1fr;
  }

  .doc-lead-panel,
  .featured-body,
  .doc-body {
    padding: 20px;
  }
}

@media (max-width: 575px) {
  .documentation-hero {
    padding: 52px 0 40px;
  }

  .hero-breadcrumb,
  .overview-label,
  .section-kicker,
  .aside-label,
  .feature-meta {
    font-size: 11px;
    letter-spacing: 0.1em;
    padding: 7px 11px;
  }

  .overview-card,
  .doc-lead-panel,
  .featured-doc-card,
  .doc-card {
    border-radius: 18px;
  }

  .overview-card,
  .doc-lead-panel,
  .featured-body,
  .doc-body {
    padding: 16px;
  }

  .featured-thumb,
  .doc-thumb {
    height: 200px;
  }

  .featured-actions,
  .doc-actions {
    flex-direction: column;
  }
}