/* ═══════════════════════════════════════════════════════════════════════════
   Tag FYI Design System — Ghost-Inspired Prose
   ═══════════════════════════════════════════════════════════════════════════
   Standalone typography system. Does NOT depend on @tailwindcss/typography.
   Tailwind Preflight resets all element styles — these rules restore them.
   Uses --tag-accent-* CSS custom properties for per-site theming.
   ═══════════════════════════════════════════════════════════════════════════ */


/* ─── Scroll-spy ───────────────────────────────────────────── */
[data-toc-link][data-active] { font-weight: 600; color: var(--tag-accent-600); }
.dark [data-toc-link][data-active] { color: var(--tag-accent-400); }

/* ─── Heading anchors ──────────────────────────────────────── */
.heading-anchor { opacity: 0; margin-left: 0.35em; transition: opacity 150ms; cursor: pointer; color: var(--tag-accent-500); text-decoration: none; }
*:hover > .heading-anchor { opacity: 0.4; }
.heading-anchor:hover { opacity: 1 !important; }

/* ─── Table wrapper (responsive) ───────────────────────────── */
.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 1.5em 0; border-radius: 0.75rem; border: 1px solid var(--color-gray-200); }
.dark .table-wrapper { border-color: var(--color-gray-700); }
.table-wrapper table { margin: 0; border-radius: 0.75rem; }

/* ─── Glossary term link — gradient highlighter ──────────────── */
.glossary-term-link {
  text-decoration: none;
  color: inherit;
  background-image: linear-gradient(to top, color-mix(in srgb, var(--tag-accent-300) 35%, transparent) 40%, transparent 40%);
  transition: background-image 200ms;
  cursor: pointer;
}
.glossary-term-link:hover {
  background-image: linear-gradient(to top, color-mix(in srgb, var(--tag-accent-300) 55%, transparent) 40%, transparent 40%);
}
.dark .glossary-term-link {
  background-image: linear-gradient(to top, color-mix(in srgb, var(--tag-accent-500) 25%, transparent) 40%, transparent 40%);
}
.dark .glossary-term-link:hover {
  background-image: linear-gradient(to top, color-mix(in srgb, var(--tag-accent-500) 40%, transparent) 40%, transparent 40%);
}

/* ─── Glossary tooltip card (JS-rendered singleton) ──────────── */
.glossary-tooltip {
  position: fixed;
  z-index: 50;
  width: 20rem;
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: 0.75rem;
  box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms;
  overflow: hidden;
}
.glossary-tooltip.visible {
  opacity: 1;
  pointer-events: auto;
}
.dark .glossary-tooltip {
  background: var(--color-gray-800);
  border-color: var(--color-gray-700);
}
.glossary-tooltip-bar {
  height: 3px;
  background: var(--tag-accent-500);
}

/* ═══════════════════════════════════════════════════════════════════════════
   Ghost-inspired Prose — Standalone Base Typography
   ═══════════════════════════════════════════════════════════════════════════
   NO :where() wrappers — needs full specificity to override Tailwind Preflight.
   Selectors use .ghost-prose ELEMENT (specificity 0,1,1) to beat Preflight.
   ═══════════════════════════════════════════════════════════════════════════ */

/* Container */
.ghost-prose {
  color: var(--color-gray-700);
  line-height: 1.75;
  max-width: none;
}
.dark .ghost-prose { color: var(--color-gray-300); }

/* Links — accent-colored with underline */
.ghost-prose a {
  color: var(--tag-accent-600);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.ghost-prose a:hover { color: var(--tag-accent-500); }
.dark .ghost-prose a { color: var(--tag-accent-400); }
.dark .ghost-prose a:hover { color: var(--tag-accent-300); }

/* Headings — clear hierarchy with section dividers */
.ghost-prose h2 {
  font-size: 1.5em;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-gray-900);
  margin-top: 2.5em;
  margin-bottom: 1em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--color-gray-200);
  line-height: 1.33;
  letter-spacing: -0.01em;
}
.dark .ghost-prose h2 { border-bottom-color: var(--color-gray-700); color: var(--color-gray-100); }

.ghost-prose h3 {
  font-size: 1.25em;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-gray-900);
  margin-top: 2em;
  margin-bottom: 0.75em;
  line-height: 1.4;
  letter-spacing: -0.005em;
}
.dark .ghost-prose h3 { color: var(--color-gray-100); }

.ghost-prose h4 {
  margin-top: 1.75em;
  margin-bottom: 0.5em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.85em;
  font-weight: 600;
  color: var(--color-gray-500);
}
.dark .ghost-prose h4 { color: var(--color-gray-400); }

/* Body text — generous rhythm */
.ghost-prose p { line-height: 1.8; margin-top: 1.25em; margin-bottom: 1.25em; }
.ghost-prose li { line-height: 1.75; margin-top: 0.5em; margin-bottom: 0.5em; }

/* Lists — restore list styles stripped by Tailwind Preflight */
.ghost-prose ul { list-style-type: disc; padding-left: 1.625em; margin-top: 1.25em; margin-bottom: 1.25em; }
.ghost-prose ol { list-style-type: decimal; padding-left: 1.625em; margin-top: 1.25em; margin-bottom: 1.25em; }
.ghost-prose ul ul, .ghost-prose ol ul { list-style-type: circle; }
.ghost-prose ul ol, .ghost-prose ol ol { list-style-type: lower-alpha; }

/* Tables — clean Ghost-style presentation */
.ghost-prose table {
  font-size: 0.875rem;
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}
.ghost-prose th {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 0.75rem 1rem;
  text-align: left;
  background-color: var(--color-gray-50);
  color: var(--color-gray-500);
}
.dark .ghost-prose th {
  background-color: var(--color-gray-800);
  color: var(--color-gray-400);
}
.ghost-prose td { padding: 0.65rem 1rem; vertical-align: top; }
.ghost-prose thead { border-bottom: 2px solid var(--color-gray-200); }
.dark .ghost-prose thead { border-bottom-color: var(--color-gray-700); }
.ghost-prose tbody tr { border-bottom: 1px solid var(--color-gray-100); transition: background-color 150ms; }
.dark .ghost-prose tbody tr { border-bottom-color: var(--color-gray-800); }
.ghost-prose tbody tr:nth-child(even) { background-color: var(--color-gray-50); }
.dark .ghost-prose tbody tr:nth-child(even) { background-color: color-mix(in srgb, var(--color-gray-900) 50%, transparent); }
.ghost-prose tbody tr:hover { background-color: var(--tag-accent-50); }
.dark .ghost-prose tbody tr:hover { background-color: color-mix(in srgb, var(--tag-accent-900) 15%, transparent); }

/* Inline code — pill badges */
.ghost-prose code:not(pre code) {
  font-size: 0.85em;
  padding: 0.15em 0.4em;
  border-radius: 0.375rem;
  background-color: var(--color-gray-100);
  border: 1px solid var(--color-gray-200);
  font-weight: 500;
}
.dark .ghost-prose code:not(pre code) {
  background-color: var(--color-gray-800);
  border-color: var(--color-gray-700);
}

/* Code blocks — clean rounded with dark background */
.ghost-prose pre {
  background-color: var(--color-gray-900);
  color: var(--color-gray-100);
  border-radius: 0.75rem;
  padding: 1.25em;
  font-size: 0.85em;
  line-height: 1.7;
  border: 1px solid var(--color-gray-700);
  position: relative;
  overflow-x: auto;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}
.dark .ghost-prose pre {
  background-color: var(--color-gray-800);
  border-color: var(--color-gray-600);
}

/* Lists — accent-colored markers */
.ghost-prose ul > li::marker { color: var(--tag-accent-500); }
.ghost-prose ol > li::marker {
  color: var(--tag-accent-600);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  font-size: 0.9em;
}
.dark .ghost-prose ol > li::marker { color: var(--tag-accent-400); }

/* Blockquotes — accent left border with tinted background */
.ghost-prose blockquote {
  border-left-width: 3px;
  border-left-color: var(--tag-accent-500);
  background-color: var(--color-gray-50);
  padding: 1em 1.25em;
  border-radius: 0 0.5rem 0.5rem 0;
  font-style: normal;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}
.dark .ghost-prose blockquote {
  background-color: color-mix(in srgb, var(--color-gray-800) 60%, transparent);
}

/* HR — gradient divider */
.ghost-prose hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-gray-300), transparent);
  margin: 3em 0;
}
.dark .ghost-prose hr {
  background: linear-gradient(to right, transparent, var(--color-gray-600), transparent);
}

/* Images — rounded with subtle shadow */
.ghost-prose img {
  border-radius: 0.75rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  max-width: 100%;
  height: auto;
  margin-top: 2em;
  margin-bottom: 2em;
}

/* Strong — ensure good contrast */
.ghost-prose strong { color: var(--color-gray-900); }
.dark .ghost-prose strong { color: var(--color-white); }

/* Code copy button */
.code-copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
  border-radius: 0.375rem;
  background: var(--color-gray-700);
  color: var(--color-gray-300);
  border: 1px solid var(--color-gray-600);
  cursor: pointer;
  opacity: 0;
  transition: opacity 150ms;
}
.ghost-prose pre:hover .code-copy-btn { opacity: 1; }
.code-copy-btn:hover { background: var(--color-gray-600); color: var(--color-white); }

/* ─── Term highlight in Related Content snippets ──────────── */
.term-highlight {
  background-color: color-mix(in srgb, var(--tag-accent-200) 50%, transparent);
  color: var(--tag-accent-900);
  font-weight: 600;
  padding: 0.05em 0.25em;
  border-radius: 0.2rem;
}
.dark .term-highlight {
  background-color: color-mix(in srgb, var(--tag-accent-800) 40%, transparent);
  color: var(--tag-accent-200);
}