/* ═══════════════════════════════════════════════════════════════
   DETAIL-ARTICLE.CSS — World-class news / blog / solution hero shell
   Works with detail-shared.css (layout, TOC, body, tables, images)
   ═══════════════════════════════════════════════════════════════ */

/* ── Cinematic hero (dark) ───────────────────────────────────── */
.ds-detail-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(5.5rem, 14vw, 9rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
  background:
    radial-gradient(ellipse 80% 60% at 10% -10%, rgba(59, 130, 246, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 50% at 90% 20%, rgba(34, 211, 238, 0.14), transparent 50%),
    linear-gradient(180deg, #030712 0%, #0a0f1e 48%, #0f172a 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.ds-detail-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 20%, transparent 75%);
  pointer-events: none;
}
.ds-detail-hero__inner {
  position: relative;
  z-index: 2;
}
.ds-detail-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(40px);
}
.ds-detail-orb--1 {
  width: min(420px, 70vw);
  height: min(420px, 70vw);
  top: -120px;
  left: -80px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.35) 0%, transparent 70%);
}
.ds-detail-orb--2 {
  width: min(320px, 55vw);
  height: min(320px, 55vw);
  bottom: -60px;
  right: -40px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.28) 0%, transparent 70%);
}

.ds-detail-hero .breadcrumb-nav {
  color: rgba(148, 163, 184, 0.9);
  margin-bottom: 1.5rem;
}
.ds-detail-hero .breadcrumb-nav a:hover {
  color: #f8fafc;
}
.ds-detail-hero .breadcrumb-nav .current {
  color: #22d3ee;
}

.ds-detail-cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.25rem;
  padding: 0.4rem 0.9rem;
  font-family: var(--ff-head, 'Sora', sans-serif);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #67e8f9;
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.22);
  border-radius: 100px;
  backdrop-filter: blur(8px);
}

.ds-detail-title {
  font-family: var(--ff-head, 'Sora', sans-serif);
  font-size: clamp(2rem, 5.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: #f8fafc;
  text-wrap: balance;
  margin: 0 0 1.5rem;
  max-width: 18ch;
}
@media (min-width: 768px) {
  .ds-detail-title { max-width: 22ch; }
}

.ds-detail-desc {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  line-height: 1.65;
  color: #94a3b8;
  max-width: 42rem;
  margin: 0 0 1.5rem;
}

.ds-detail-hero .hero-meta-axis {
  margin-bottom: 1.25rem;
}
.ds-detail-hero .meta-label {
  color: rgba(148, 163, 184, 0.75);
}
.ds-detail-hero .meta-value {
  color: #f1f5f9;
}
.ds-detail-hero .meta-divider {
  background: rgba(255, 255, 255, 0.12);
}

.ds-detail-hero .tag-cloud { margin-top: 0.5rem; }
.ds-detail-hero .tag-item {
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}
.ds-detail-hero .tag-item:hover {
  color: #fff;
  border-color: rgba(34, 211, 238, 0.45);
  background: rgba(34, 211, 238, 0.1);
}

/* ── Light reading canvas (contrast after dark hero) ───────────── */
.ds-detail-main {
  background:
    linear-gradient(180deg, #f8fafc 0%, #ffffff 120px),
    #ffffff;
}
[data-theme="dark"] .ds-detail-main {
  background:
    linear-gradient(180deg, var(--clr-bg-alt, #0f172a) 0%, var(--clr-bg, #020617) 120px);
}

.ds-detail-main .scroll-progress,
.scroll-progress {
  background: linear-gradient(90deg, #3b82f6, #22d3ee);
  height: 3px;
  z-index: 9999;
}

/* Premium sidebar cards */
.ds-detail-main .index-nexus {
  padding: 1.35rem 1.25rem 1.5rem;
  background: var(--clr-surface, #fff);
  border: 1px solid var(--clr-border);
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}
.ds-detail-main .sidebar-utilities {
  border-top: none;
  padding-top: 0;
}
.ds-detail-main .utility-card.author-mini,
.ds-detail-main .utility-card:not(.author-mini) {
  padding: 1.15rem 1.2rem;
  background: var(--clr-surface, #fff);
  border: 1px solid var(--clr-border);
  border-radius: 14px;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}
.ds-detail-main .utility-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 36px;
  padding: 0 0.75rem;
  border-radius: 8px;
  background: var(--clr-bg-alt, #f1f5f9);
  border: 1px solid var(--clr-border);
}
.ds-detail-main .utility-actions a:hover {
  background: rgba(var(--ds-accent-rgb), 0.08);
  border-color: var(--ds-accent);
}

.ds-detail-main .author-name-sm,
.ds-detail-main .author-name {
  font-size: 14px;
  font-weight: 800;
  color: var(--clr-heading);
}
.ds-detail-main .author-role-sm,
.ds-detail-main .author-role {
  font-size: 10px;
  color: var(--ds-accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* AI summary — elevated card on light canvas */
.ds-detail-main .za-pb-ai-summary {
  border-radius: 18px;
  padding: clamp(1.25rem, 4vw, 2rem) clamp(1.25rem, 4vw, 2.25rem);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.14);
  background:
    linear-gradient(135deg, rgba(59, 130, 246, 0.06) 0%, rgba(34, 211, 238, 0.04) 100%),
    var(--clr-surface, #fff);
}

/* Related + footer nav */
.ds-detail-back {
  padding-block: clamp(1.5rem, 4vw, 2.5rem);
}
.ds-detail-back .btn-outline {
  border-radius: 100px;
  padding: 0.65rem 1.25rem;
  font-weight: 700;
  font-size: 0.85rem;
}

.ds-related-section {
  background: var(--clr-bg-alt, #f8fafc);
  border-top: 1px solid var(--clr-border);
  padding-block: clamp(2.5rem, 6vw, 4rem);
}
.ds-related-heading {
  font-family: var(--ff-head, 'Sora', sans-serif);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
  color: var(--clr-heading);
}
.ds-related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 640px) {
  .ds-related-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}
@media (min-width: 1025px) {
  .ds-related-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}
.ds-related-card {
  display: block;
  padding: 1.35rem 1.4rem;
  background: var(--clr-surface, #fff);
  border: 1px solid var(--clr-border);
  border-radius: 16px;
  transition: transform 0.35s var(--ds-easing), box-shadow 0.35s, border-color 0.25s;
}
@media (hover: hover) {
  .ds-related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.1);
    border-color: var(--ds-accent);
  }
}
.ds-related-card-cat {
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ds-accent);
  margin-bottom: 0.5rem;
}
.ds-related-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--clr-heading);
  margin-bottom: 0.5rem;
}
.ds-related-card-meta {
  font-size: 0.75rem;
  color: var(--clr-text-faint);
}