/* ============================================================
   .content — Enhanced Typography System
   A professional blog/docs layer, Tailwind-compatible
   ============================================================ */

/* ── CSS Custom Properties (light mode defaults) ─────────── */
.content {
  --c-text: #1a1a1a;
  --c-text-muted: #5a6472;
  --c-heading: #0f1117;
  --c-link: #0066cc;
  --c-link-hover: #004fa3;
  --c-border: #e0e4ea;
  --c-border-strong: #c8cdd6;
  --c-bg-subtle: #f6f8fa;
  --c-bg-code: #f0f2f5;
  --c-inline-code: #c0392b;
  --c-accent: #0066cc;
  --c-quote-border: #0066cc;
  --c-hr: #e0e4ea;
  --c-selection-bg: #b6d0f7;

  /* Code block (block-level) */
  --c-pre-bg: #f6f8fa;
  --c-pre-border: #d0d7de;
  --c-pre-text: #24292f;
  --c-pre-accent: #0066cc;
  --c-pre-scroll-thumb: #c0c4cc;
  --c-pre-scroll-track: #eaecef;
  --c-pre-label-bg: #eaecef;
  --c-pre-label-fg: #57606a;
}

/* ── Dark mode overrides via .dark class ─────────────────── */
.dark .content,
.content.dark {
  --c-text: #cdd6e0;
  --c-text-muted: #8b949e;
  --c-heading: #e6edf3;
  --c-link: #58a6ff;
  --c-link-hover: #79b8ff;
  --c-border: #30363d;
  --c-border-strong: #484f58;
  --c-bg-subtle: #161b22;
  --c-bg-code: #1e2329;
  --c-inline-code: #f97583;
  --c-accent: #58a6ff;
  --c-quote-border: #58a6ff;
  --c-hr: #30363d;
  --c-selection-bg: #264f78;

  --c-pre-bg: #161b22;
  --c-pre-border: #30363d;
  --c-pre-text: #c9d1d9;
  --c-pre-accent: #58a6ff;
  --c-pre-scroll-thumb: #484f58;
  --c-pre-scroll-track: #21262d;
  --c-pre-label-bg: #21262d;
  --c-pre-label-fg: #8b949e;
}

/* Also honour OS dark mode when no explicit class */
@media (prefers-color-scheme: dark) {
  .content:not(.light) {
    --c-text: #cdd6e0;
    --c-text-muted: #8b949e;
    --c-heading: #e6edf3;
    --c-link: #58a6ff;
    --c-link-hover: #79b8ff;
    --c-border: #30363d;
    --c-border-strong: #484f58;
    --c-bg-subtle: #161b22;
    --c-bg-code: #1e2329;
    --c-inline-code: #f97583;
    --c-accent: #58a6ff;
    --c-quote-border: #58a6ff;
    --c-hr: #30363d;
    --c-selection-bg: #264f78;

    --c-pre-bg: #161b22;
    --c-pre-border: #30363d;
    --c-pre-text: #c9d1d9;
    --c-pre-accent: #58a6ff;
    --c-pre-scroll-thumb: #484f58;
    --c-pre-scroll-track: #21262d;
    --c-pre-label-bg: #21262d;
    --c-pre-label-fg: #8b949e;
  }
}

/* ── Base container ──────────────────────────────────────── */
.content {
  max-width: 650px;
  margin: 2rem auto;
  padding: 0 1rem;
  font-family: 'Georgia', serif;
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--c-text);
}

/* Text selection */
.content ::selection {
  background-color: var(--c-selection-bg);
  color: inherit;
}

/* ============================================================
   HEADINGS
   ============================================================ */
.content h1,
.content h2,
.content h3,
.content h4 {
  font-family: 'Georgia', serif;
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-heading);
  letter-spacing: -0.015em;
  margin-top: 2.25rem;
  margin-bottom: 0.625rem;
}

.content>h1:first-child,
.content>h2:first-child,
.content>h3:first-child,
.content>h4:first-child {
  margin-top: 0;
}

.content h1 {
  font-size: 2.25rem;
  margin-top: 0;
}

.content h2 {
  font-size: 1.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--c-border);
}

.content h3 {
  font-size: 1.375rem;
}

.content h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.content h1+h2,
.content h2+h3,
.content h3+h4 {
  margin-top: 1rem;
}

/* ============================================================
   PARAGRAPHS
   ============================================================ */
.content p {
  margin: 1.125rem 0;
  line-height: 1.8;
}

.content h1+p,
.content h2+p,
.content h3+p,
.content h4+p {
  margin-top: 0.5rem;
}

/* ============================================================
   LINKS
   ============================================================ */
.content a {
  color: var(--c-link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.content a:hover {
  color: var(--c-link-hover);
  border-bottom-color: var(--c-link-hover);
}

/* ============================================================
   LISTS
   ============================================================ */
.content ul,
.content ol {
  margin: 1.25rem 0;
  line-height: 1.75;
}

/* Unordered — square accent bullets */
.content ul {
  list-style: none;
  padding-left: 1.5rem;
}

.content ul>li {
  position: relative;
  padding-left: 1.25rem;
}

.content ul>li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 5px;
  height: 5px;
  background-color: var(--c-accent);
  border-radius: 0;
}

/* Ordered — styled counter */
.content ol {
  list-style: none;
  counter-reset: ol-counter;
  padding-left: 1.75rem;
}

.content ol>li {
  position: relative;
  padding-left: 1.25rem;
  counter-increment: ol-counter;
}

.content ol>li::before {
  content: counter(ol-counter) ".";
  position: absolute;
  left: -1.5rem;
  top: 0;
  width: 1.5rem;
  text-align: right;
  font-size: 0.875em;
  font-weight: 600;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  color: var(--c-accent);
  line-height: 1.75;
  user-select: none;
}

/* Item spacing */
.content li {
  margin-top: 0.45rem;
  margin-bottom: 0.45rem;
}

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

.content li:last-child {
  margin-bottom: 0;
}

/* Nested lists */
.content ul ul,
.content ul ol,
.content ol ul,
.content ol ol {
  margin: 0.375rem 0 0.375rem 0.5rem;
  padding-left: 1.25rem;
  border-left: 2px solid var(--c-border);
}

/* Nested ul — hollow bullet */
.content ul ul>li::before {
  background-color: transparent;
  border: 1.5px solid var(--c-accent);
}

/* Third-level — dash */
.content ul ul ul>li::before {
  content: '–';
  background: none;
  border: none;
  width: auto;
  height: auto;
  top: 0;
  font-size: 0.85em;
  color: var(--c-text-muted);
  line-height: 1.75;
}

.content p+ul,
.content p+ol {
  margin-top: 0.5rem;
}

.content ul+p,
.content ol+p {
  margin-top: 1.25rem;
}

/* ============================================================
   BLOCKQUOTES
   ============================================================ */
.content blockquote {
  margin: 1.75rem 0;
  padding: 0.875rem 1.375rem;
  border-left: 3px solid var(--c-quote-border);
  background-color: var(--c-bg-subtle);
  font-style: italic;
  color: var(--c-text-muted);
  border-radius: 0;
}

.content blockquote p {
  margin: 0.375rem 0;
}

.content blockquote p:first-child {
  margin-top: 0;
}

.content blockquote p:last-child {
  margin-bottom: 0;
}

/* ============================================================
   HORIZONTAL RULES
   ============================================================ */
.content hr {
  border: none;
  border-top: 1px solid var(--c-hr);
  margin: 2.5rem 0;
}

/* ============================================================
   IMAGES
   ============================================================ */
.content img {
  max-width: 100%;
  height: auto;
  margin: 2rem 0;
  display: block;
  border: 1px solid var(--c-border);
}

.content figure {
  margin: 2rem 0;
}

.content figcaption {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--c-text-muted);
  font-style: italic;
  text-align: center;
}

/* ============================================================
   CODE & PRE
   ============================================================ */
.content pre,
.content code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New', monospace;
  font-variant-ligatures: contextual;
}

/* Inline code */
.content code {
  font-size: 0.875em;
  line-height: 1.5;
  padding: 0.15em 0.45em;
  background-color: var(--c-bg-code);
  color: var(--c-inline-code);
  border: 1px solid var(--c-border);
  border-radius: 2px;
  font-style: normal;
}

/* Reset code inside pre */
.content pre code {
  background: none;
  color: inherit;
  border: none;
  padding: 0;
  font-size: inherit;
  border-radius: 0;
}

/* Block code wrapper */
.content pre {
  position: relative;
  margin: 2rem 0;
  padding: 0;
  overflow: hidden;
  background-color: var(--c-pre-bg);
  border: 1px solid var(--c-pre-border);
  border-left: 3px solid var(--c-pre-accent);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  border-radius: 0;
}

/* Block code inner */
.content pre>code {
  display: block;
  padding: 1.125rem 1.375rem;
  overflow-x: auto;
  color: var(--c-pre-text);
  font-size: 0.875rem;
  line-height: 1.7;
  white-space: pre;
  word-break: normal;
  word-wrap: normal;
  tab-size: 2;
  min-width: 0;
}

/* Scrollbar */
.content pre>code::-webkit-scrollbar {
  height: 6px;
  background: transparent;
}

.content pre>code::-webkit-scrollbar-track {
  background: var(--c-pre-scroll-track);
}

.content pre>code::-webkit-scrollbar-thumb {
  background: var(--c-pre-scroll-thumb);
  border-radius: 0;
}

.content pre>code::-webkit-scrollbar-thumb:hover {
  filter: brightness(0.85);
}

.content pre>code {
  scrollbar-width: thin;
  scrollbar-color: var(--c-pre-scroll-thumb) var(--c-pre-scroll-track);
}

/* Selection */
.content pre>code::selection,
.content pre>code *::selection {
  background-color: var(--c-selection-bg);
  color: inherit;
}

/* Language label: <pre data-lang="js"> */
.content pre[data-lang]::before {
  content: attr(data-lang);
  display: block;
  padding: 0.3rem 1.375rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-pre-label-fg);
  background-color: var(--c-pre-label-bg);
  border-bottom: 1px solid var(--c-pre-border);
  user-select: none;
}

/* Line highlight: wrap line in <span class="line-highlight"> */
.content pre>code .line-highlight {
  display: block;
  background-color: rgba(0, 102, 204, 0.08);
  margin: 0 -1.375rem;
  padding: 0 1.375rem;
  border-left: 2px solid var(--c-pre-accent);
}

.content h1+pre,
.content h2+pre,
.content h3+pre,
.content h4+pre {
  margin-top: 1rem;
}

/* ============================================================
   TABLES
   ============================================================ */
.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.content thead {
  background-color: var(--c-bg-subtle);
  border-bottom: 2px solid var(--c-border-strong);
}

.content th {
  padding: 0.625rem 0.875rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  white-space: nowrap;
}

.content td {
  padding: 0.625rem 0.875rem;
  border-bottom: 1px solid var(--c-border);
  vertical-align: top;
  color: var(--c-text);
}

.content tbody tr:last-child td {
  border-bottom: none;
}

.content tbody tr:hover {
  background-color: var(--c-bg-subtle);
  transition: background-color 0.1s ease;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .content {
    font-size: 1rem;
    padding: 0 0.75rem;
  }

  .content h1 {
    font-size: 1.75rem;
  }

  .content h2 {
    font-size: 1.5rem;
  }

  .content h3 {
    font-size: 1.25rem;
  }

  .content pre>code {
    padding: 0.875rem 1rem;
    font-size: 0.8125rem;
  }

  .content pre[data-lang]::before {
    padding: 0.3rem 1rem;
  }

  .content pre>code .line-highlight {
    margin: 0 -1rem;
    padding: 0 1rem;
  }

  .content blockquote {
    margin: 1.25rem 0;
    padding: 0.75rem 1rem;
  }

  .content ul,
  .content ol {
    padding-left: 1.25rem;
  }
}

/* ============================================================
   UTILITY CLASSES (original, preserved)
   ============================================================ */
.form-inline {
  display: inline;
  margin: 0;
}

.btn-inline-logout {
  display: inline;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0;
  font: inherit;
}

.is-hidden {
  display: none;
}

.is-disabled {
  opacity: 0.5;
  pointer-events: none;
}