/* Obsidian Infrastructure — article-body component classes.
   Retextures the site's article template with this design system's tokens
   (see js/tailwind-config.js for the canonical color/spacing values shared
   with the Tailwind-driven home/contact/gallery pages). Loaded alongside
   Tailwind on every article page; only content-area classes live here —
   header/footer/nav reuse the shared Tailwind markup directly. */

:root {
  --ob-bg: #111319;
  --ob-surface: #191b22;
  --ob-surface-high: #282a30;
  --ob-surface-lowest: #0c0e14;
  --ob-ink: #e2e2eb;
  --ob-muted: #cec2d6;
  --ob-outline: #988d9f;
  --ob-divider: rgba(76, 67, 84, 0.4);
  --ob-primary: #dbb8ff;
  --ob-primary-strong: #7928ca;
  --ob-accent: #6ff6ff;
  --ob-accent-strong: #00f1fd;
  --ob-radius-sm: 4px;
  --ob-radius-md: 8px;
  --ob-radius-lg: 12px;
  --font-heading: "Hanken Grotesk", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

.skip-link {
  background: var(--ob-surface);
  color: var(--ob-ink);
  left: 16px;
  padding: 10px 14px;
  position: absolute;
  top: -48px;
  z-index: 100;
  border-radius: var(--ob-radius-sm);
}
.skip-link:focus { top: 16px; }

/* — article hero — */
.article-hero {
  padding: 136px 24px 64px;
  background:
    radial-gradient(1100px 480px at 82% -180px, rgba(121, 40, 202, 0.15), transparent 62%),
    radial-gradient(420px 320px at -5% 20%, rgba(0, 241, 253, 0.08), transparent 60%),
    var(--ob-bg);
}
.article-hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(280px, 4fr);
  gap: 40px;
  align-items: end;
}
.article-diagram-hero-grid {
  align-items: center;
  grid-template-columns: minmax(320px, 0.85fr) minmax(0, 1.3fr);
}
.article-kicker {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ob-accent);
  border: 1px solid var(--ob-divider);
  border-radius: var(--ob-radius-md);
  padding: 8px 14px;
  margin-bottom: 16px;
}
.article-hero h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  max-width: 720px;
  color: var(--ob-ink);
}
.article-deck {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.65;
  color: var(--ob-muted);
  max-width: 640px;
  margin: 0;
}
.article-meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.article-pill {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--ob-surface);
  border: 1px solid var(--ob-divider);
  color: var(--ob-muted);
}
.article-hero-card {
  background: var(--ob-surface);
  border: 1px solid var(--ob-divider);
  border-radius: var(--ob-radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 32px -8px rgba(121, 40, 202, 0.18);
}
.article-hero-card img { width: 100%; aspect-ratio: 16/11; object-fit: cover; display: block; }
.article-hero-diagram-card img {
  aspect-ratio: 16/9;
  object-fit: contain;
  background: var(--ob-surface-lowest);
  padding: 16px;
  box-sizing: border-box;
}
.article-hero-card div { padding: 16px 20px; border-top: 1px solid var(--ob-divider); }
.article-hero-card strong { display: block; font-family: var(--font-heading); font-size: 16px; margin-bottom: 4px; color: var(--ob-ink); }
.article-hero-card span { font-family: var(--font-body); font-size: 14px; color: var(--ob-muted); }

/* — shell / sidebar — */
.article-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px 96px;
  display: grid;
  grid-template-columns: minmax(190px, 240px) minmax(0, 1fr);
  gap: 24px;
}
.article-sidebar { position: sticky; top: 96px; align-self: start; }
.article-author, .article-toc {
  background: var(--ob-surface);
  border: 1px solid var(--ob-divider);
  border-radius: var(--ob-radius-lg);
  padding: 16px;
}
.article-author { margin-bottom: 16px; }
.article-author img { width: 56px; height: 56px; border-radius: 999px; object-fit: cover; margin-bottom: 12px; display: block; }
.article-author strong, .article-toc strong { display: block; font-family: var(--font-heading); font-size: 14px; margin-bottom: 8px; color: var(--ob-ink); }
.article-author p { font-family: var(--font-body); font-size: 13px; color: var(--ob-muted); margin: 0; }
.article-toc a { display: block; font-family: var(--font-body); font-size: 13px; color: var(--ob-muted); padding: 6px 0; text-decoration: none; }
.article-toc a:hover { color: var(--ob-accent); }

/* — body content — */
.article-content { min-width: 0; }
.article-section {
  background: var(--ob-surface);
  border: 1px solid var(--ob-divider);
  border-radius: var(--ob-radius-lg);
  padding: clamp(24px, 3vw, 40px);
  margin-bottom: 16px;
}
.article-section h2 { font-family: var(--font-heading); font-weight: 700; font-size: clamp(24px, 3vw, 32px); margin: 0 0 16px; color: var(--ob-ink); }
.article-section h3 { font-family: var(--font-heading); font-weight: 600; font-size: 20px; margin-top: 24px; color: var(--ob-ink); }
.article-section p, .article-section li { font-family: var(--font-body); font-size: 16px; line-height: 1.7; color: var(--ob-muted); }
.article-section ul { padding-left: 22px; }
.article-section code {
  background: var(--ob-surface-lowest);
  border: 1px solid var(--ob-divider);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: var(--font-mono);
  color: var(--ob-accent);
}

.article-code {
  background: var(--ob-surface-lowest);
  border: 1px solid var(--ob-divider);
  border-radius: var(--ob-radius-md);
  padding: 16px;
  margin: 16px 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ob-ink);
  white-space: pre;
}

.article-callout {
  background: rgba(121, 40, 202, 0.12);
  border: 1px solid rgba(121, 40, 202, 0.35);
  border-left: 3px solid var(--ob-primary-strong);
  border-radius: var(--ob-radius-md);
  padding: 16px;
  margin: 16px 0;
}
.article-callout p { margin: 0; font-family: var(--font-body); color: var(--ob-ink); }

.article-quote {
  border-left: 3px solid var(--ob-accent-strong);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.3;
  padding-left: 16px;
  margin: 24px 0;
  color: var(--ob-ink);
}

.article-table { overflow-x: auto; margin: 16px 0; }
.article-table table { width: 100%; border-collapse: collapse; min-width: 560px; }
.article-table th, .article-table td { border-bottom: 1px solid var(--ob-divider); padding: 12px; text-align: left; font-family: var(--font-body); font-size: 14px; color: var(--ob-muted); }
.article-table th { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; color: var(--ob-accent); }

.article-inline-image, .article-diagram-image {
  width: 100%;
  border-radius: var(--ob-radius-md);
  border: 1px solid var(--ob-divider);
  margin: 16px 0;
  display: block;
}

.article-logo-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--ob-surface-lowest);
  border: 1px solid var(--ob-divider);
  border-radius: var(--ob-radius-md);
  padding: 12px;
  margin: 16px 0;
}
.article-logo-row img { width: 56px; height: 56px; border-radius: var(--ob-radius-sm); object-fit: cover; flex: 0 0 auto; }
.article-logo-row span { font-family: var(--font-mono); font-size: 13px; color: var(--ob-muted); }

.article-screenshot { margin: 16px 0; }
.article-screenshot img { width: 100%; border-radius: var(--ob-radius-md); border: 1px solid var(--ob-divider); display: block; }
.article-screenshot figcaption { font-family: var(--font-mono); font-size: 12px; color: var(--ob-outline); margin-top: 8px; }
.article-screenshot-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }

@media (max-width: 900px) {
  .article-hero-grid, .article-diagram-hero-grid, .article-shell {
    grid-template-columns: 1fr;
  }
  .article-sidebar { position: static; }
  .article-screenshot-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}