/* ── Tokens ──────────────────────────────────────── */
:root {
  --bg:           #0b1520;
  --surface:      #111e2b;
  --text:         #f0f6ff;
  --text-muted:   #7aaec8;
  --link:         #e84020;
  --link-hover:   #ff5535;
  --border:       #192a38;
  --max-width:    680px;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Quicksand', system-ui, sans-serif;
  --font-ui:      'Epilogue', system-ui, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg:           #ffffff;
    --surface:      #f0f0f0;
    --text:         #000000;
    --text-muted:   #3d3d3d;
    --link:         #b5290e;
    --link-hover:   #8a1f0a;
    --border:       #ddd;
  }
}

html[data-theme="light"] {
  --bg:           #ffffff;
  --surface:      #f0f0f0;
  --text:         #0a0a0a;
  --text-muted:   #5a5a5a;
  --link:         #b5290e;
  --link-hover:   #8a1f0a;
  --border:       #ddd;
}

html[data-theme="dark"] {
  --bg:           #0b1520;
  --surface:      #111e2b;
  --text:         #f0f6ff;
  --text-muted:   #7aaec8;
  --link:         #e84020;
  --link-hover:   #ff5535;
  --border:       #192a38;
}

/* ── Theme toggle button ─────────────────────────── */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0;
  display: flex;
  align-items: center;
  line-height: 1;
}

.theme-toggle:hover { color: var(--link); }

.theme-toggle svg { display: block; }

.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun  { display: block; }

.theme-toggle[data-current="light"] .icon-moon { display: block; }
.theme-toggle[data-current="light"] .icon-sun  { display: none; }

/* ── Reduced motion ──────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Skip link ───────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.5rem 1rem;
  background: var(--text);
  color: var(--bg);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
}

.skip-link:focus {
  top: 0;
}

/* ── Focus styles ────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ── Reset ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 18px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.75;
  padding: 0 1.25rem;
}

/* ── Layout ──────────────────────────────────────── */
.site-wrapper {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 160px 1fr;
  grid-template-areas:
    "header  header"
    "sidebar main"
    "footer  footer";
  column-gap: 3rem;
}

.site-header  { grid-area: header; }
.sidebar      { grid-area: sidebar; }
main          { grid-area: main; max-width: var(--max-width); }
.site-footer  { grid-area: footer; }

/* Tablet: shrink sidebar */
@media (max-width: 860px) {
  .site-wrapper {
    grid-template-columns: 140px 1fr;
    column-gap: 2rem;
  }
}

/* Mobile: single column */
@media (max-width: 640px) {
  body { padding: 0 1rem; }

  .site-wrapper {
    grid-template-columns: 1fr;
    grid-template-areas: "header" "main" "footer";
  }

  .sidebar { display: none; }

  .site-header {
    padding: 1.5rem 0 1rem;
    margin-bottom: 2rem;
  }

  .site-nav { gap: 1.25rem; }
}

/* ── Sidebar ─────────────────────────────────────── */
.sidebar {
  position: sticky;
  top: 2rem;
  align-self: start;
  padding-top: 0.25rem;
}

.sidebar-label {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.post-history ul {
  list-style: none;
}

.post-history li {
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.post-history li a {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
}

.post-history li a:hover {
  color: var(--link);
}

/* ── Sidebar categories ──────────────────────────── */
.category-list {
  margin-top: 2rem;
}

.category-list ul {
  list-style: none;
}

.category-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
}

.category-list li a {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
}

.category-list li a:hover {
  color: var(--link);
}

.cat-count {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  color: var(--text-muted);
  opacity: 0.6;
}

.sidebar-all {
  display: inline-block;
  margin-top: 0.75rem;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--link);
}

.sidebar-all:hover { color: var(--link-hover); }

.all-posts-link {
  display: inline-block;
  margin-top: 2rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--link);
}

.all-posts-link:hover { color: var(--link-hover); }

/* ── Header ──────────────────────────────────────── */
.site-header {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1.5px solid var(--text);
  margin-bottom: 3.5rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-title {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  font-optical-sizing: auto;
  letter-spacing: -0.04em;
  line-height: 1;
}

.site-title a {
  text-decoration: none;
  color: inherit;
}

.site-title .rage {
  font-style: italic;
}

.site-nav {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--link);
}

/* ── Global links ────────────────────────────────── */
a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--link-hover);
  text-decoration-thickness: 2px;
}

/* ── Post list ───────────────────────────────────── */
.post-list {
  list-style: none;
}

.post-item {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}

.post-item:first-child {
  border-top: 1px solid var(--border);
}

.post-item-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  font-optical-sizing: auto;
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin-bottom: 0.35rem;
}

.post-item-title a {
  color: var(--text);
  text-decoration: none;
}

.post-item-title a:hover {
  color: var(--link);
}

.post-meta {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.post-meta a {
  color: var(--text-muted);
  text-decoration: none;
}

.post-meta a:hover {
  color: var(--link);
}

.post-item-summary {
  margin-top: 0.6rem;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-muted);
}

/* ── Single post ─────────────────────────────────── */
.post-header {
  margin-bottom: 2.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.post-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  font-weight: 700;
  font-optical-sizing: auto;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

/* Drop cap on first paragraph */
.post-content > p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-size: 3.4em;
  font-weight: 700;
  line-height: 0.82;
  float: left;
  margin-right: 0.07em;
  margin-top: 0.06em;
  color: var(--text);
}

/* ── Article body typography ─────────────────────── */
.post-content h2,
.post-content h3,
.post-content h4 {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin: 2.5rem 0 0.8rem;
}

.post-content h2 { font-size: 1.55rem; font-weight: 700; }
.post-content h3 { font-size: 1.22rem; font-weight: 700; }
.post-content h4 {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.post-content p { margin-bottom: 1.4rem; }

.post-content ul,
.post-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.4rem;
}

.post-content li { margin-bottom: 0.4rem; }

.post-content blockquote {
  border-left: 2px solid var(--link);
  padding: 0.2rem 0 0.2rem 1.4rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--text-muted);
}

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

.pullquote {
  margin: 2.5rem 0;
  padding: 1.5rem 2rem;
  border-top: 2px solid var(--link);
  border-bottom: 2px solid var(--link);
  text-align: center;
}

.pullquote blockquote {
  border: none;
  padding: 0;
  margin: 0;
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text);
}

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

@media (prefers-reduced-motion: no-preference) {
  .pullquote { transition: border-color 0.2s ease; }
}

/* Typographic ornament for <hr> */
.post-content hr {
  border: none;
  text-align: center;
  margin: 3rem 0;
  color: var(--text-muted);
  font-family: var(--font-ui);
  letter-spacing: 0.5em;
}
.post-content hr::after { content: '· · ·'; }

.post-content code {
  font-family: 'SF Mono', 'Fira Code', Consolas, monospace;
  font-size: 0.85em;
  background: var(--surface);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

.post-content pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  margin: 2rem 0;
  line-height: 1.55;
}

.post-content pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
}

.post-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 2.5rem auto;
}

.post-content figure {
  margin: 2.5rem 0;
}

.post-content figure img {
  margin: 0 auto;
}

.post-content figcaption,
.post-content figcaption p {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 0.6rem;
  margin-bottom: 0;
  font-style: italic;
  line-height: 1.5;
}

.post-content .table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 2rem 0;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  margin: 0;
}

.post-content th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.post-content td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

/* ── Tags ────────────────────────────────────────── */
.tag-cloud {
  margin-top: 2rem;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.tag {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.25rem 0.65rem;
  border-radius: 2px;
}

.tag:hover {
  color: var(--link);
  border-color: var(--link);
  text-decoration: none;
}

/* ── Sharing ─────────────────────────────────────── */
.sharing {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.sharing-label {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.sharing-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  list-style: none;
}

.sharing-links a {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-decoration: none;
}

.sharing-links a:hover {
  color: var(--link);
}

.copy-link {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.copy-link:hover { color: var(--link); }

/* ── Footer ──────────────────────────────────────── */
.site-footer {
  margin-top: 5rem;
  padding: 1.75rem 0 3rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--link);
}