/* ===========================
   VersBinarii — Static Design
   Dark terminal-inspired blog
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;600&family=Newsreader:ital,wght@0,300;0,400;1,300&display=swap');

:root {
  /* ── Dark theme (default) ── */
  --bg:          #1a1a1a;
  --bg-secondary:#222222;
  --surface:     #2a2a2a;
  --border:      #333333;
  --text:        #d4d0c8;
  --text-muted:  #7a7a7a;
  --accent:      #e8b86d;
  --accent-dim:  #a07840;
  --link:        #8ab4d4;
  --link-hover:  #b8d4ec;
  --danger:      #c47070;
  --header-bg:   rgba(26, 26, 26, 0.92);
  --mono:        'JetBrains Mono', 'Courier New', monospace;
  --serif:       'Newsreader', Georgia, serif;
  --max-w:       680px;
  --radius:      3px;
}

/* ── Light theme ── */
[data-theme="light"] {
  --bg:          #f5f2ed;
  --bg-secondary:#ede9e2;
  --surface:     #e8e3db;
  --border:      #d0c9be;
  --text:        #2a2520;
  --text-muted:  #8a7f72;
  --accent:      #b07030;
  --accent-dim:  #c8904a;
  --link:        #3a6a8a;
  --link-hover:  #2a5070;
  --danger:      #a04040;
  --header-bg:   rgba(245, 242, 237, 0.92);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-weight: 300;
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* ── NOISE OVERLAY ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

/* ── LAYOUT ── */
.site-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

main {
  flex: 1;
  padding: 4rem 0 6rem;
}

/* ── HEADER ── */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1.4rem 0;
  position: sticky;
  top: 0;
  background-color: var(--header-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-title {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

.site-title:hover { opacity: 0.75; }

/* ── NAV ── */
.site-nav {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.site-nav a {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.25s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
}

.site-nav a:hover::after,
.site-nav a.active::after {
  width: 100%;
}

/* ── HAMBURGER (mobile) ── */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem 0.5rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  transition: border-color 0.2s, color 0.2s;
}
.nav-toggle:hover { border-color: var(--accent); color: var(--accent); }

/* ── HERO (home) ── */
.hero {
  padding: 7rem 0 6rem;
  position: relative;
}

.hero-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--accent-dim);
}

.hero h1 {
  font-family: var(--mono);
  font-size: clamp(2rem, 6vw, 3.25rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero h1 span {
  color: var(--accent);
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-style: italic;
  max-width: 480px;
  line-height: 1.6;
}

.hero-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── PAGE HEADER ── */
.page-header {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.page-header h1 {
  font-family: var(--mono);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ── POSTS LIST ── */
.year-group {
  margin-bottom: 3rem;
}

.year-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.year-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

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

.post-list li {
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(6px);
  animation: fadeUp 0.4s ease forwards;
}

.post-list li:nth-child(1)  { animation-delay: 0.05s; }
.post-list li:nth-child(2)  { animation-delay: 0.10s; }
.post-list li:nth-child(3)  { animation-delay: 0.15s; }
.post-list li:nth-child(4)  { animation-delay: 0.20s; }
.post-list li:nth-child(5)  { animation-delay: 0.25s; }
.post-list li:nth-child(6)  { animation-delay: 0.30s; }

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.post-link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.85rem 0;
  text-decoration: none;
  color: var(--text);
  transition: color 0.2s;
}

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

.post-link:hover .post-title::before {
  opacity: 1;
  transform: translateX(0);
}

.post-title {
  font-size: 0.95rem;
  font-family: var(--serif);
  font-weight: 300;
  line-height: 1.4;
  position: relative;
  padding-left: 0;
  transition: padding-left 0.2s;
}

.post-link:hover .post-title {
  padding-left: 0.85rem;
}

.post-title::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s, transform 0.2s;
  font-style: normal;
}

.post-date {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── ARTICLE ── */
.article-header {
  padding: 3.5rem 0 2rem;
}

.article-meta {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.article-meta .dot { color: var(--border); }

.article-header h1 {
  font-family: var(--mono);
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 600;
  color: var(--text);
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.article-body {
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.article-body p {
  margin-bottom: 1.4rem;
  font-size: 1rem;
  color: var(--text);
}

.article-body h2 {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin: 2.5rem 0 1rem;
  letter-spacing: 0.04em;
}

.article-body a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover { color: var(--link-hover); }

.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.word-count {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  margin-top: 3rem;
}

/* ── FOOTER ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.footer-inner a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-inner a:hover { color: var(--accent); }

.footer-right {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.footer-sep { color: var(--border); }

/* ── ESSAYS LIST ── */
.essay-list {
  list-style: none;
}

.essay-item {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
  opacity: 0;
  transform: translateY(6px);
  animation: fadeUp 0.4s ease forwards;
}

.essay-item:nth-child(1) { animation-delay: 0.05s; }
.essay-item:nth-child(2) { animation-delay: 0.10s; }
.essay-item:nth-child(3) { animation-delay: 0.15s; }
.essay-item:nth-child(4) { animation-delay: 0.20s; }

.essay-item:first-child { padding-top: 0; }

.essay-link {
  text-decoration: none;
  display: block;
  transition: color 0.2s;
  color: inherit;
}

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

.essay-link:hover .essay-arrow {
  transform: translateX(4px);
  color: var(--accent);
}

.essay-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.4rem;
}

.essay-title {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--text);
  line-height: 1.35;
  transition: color 0.2s;
}

.essay-arrow {
  font-family: var(--mono);
  color: var(--text-muted);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: transform 0.2s, color 0.2s;
}

.essay-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-bottom: 0.55rem;
}

.essay-tag {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius);
  color: var(--accent-dim);
  letter-spacing: 0.06em;
}

.essay-excerpt {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
  font-style: italic;
}

/* ── CONTACT FORM ── */
.contact-intro {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 2.5rem;
  line-height: 1.65;
}

.contact-intro strong {
  color: var(--accent);
  font-style: normal;
  font-weight: 400;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.form-label .required {
  color: var(--accent);
}

.form-input,
.form-textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--serif);
  font-size: 0.95rem;
  font-weight: 300;
  padding: 0.7rem 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  width: 100%;
  -webkit-appearance: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
  font-style: italic;
  opacity: 0.6;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px rgba(232, 184, 109, 0.08);
}

.form-input:focus + .input-line,
.form-textarea:focus + .input-line {
  width: 100%;
}

.form-textarea {
  resize: vertical;
  min-height: 160px;
  line-height: 1.65;
}

.form-hint {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-submit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.form-target {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-target::before {
  content: '→';
  color: var(--accent-dim);
}

.btn-submit {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  padding: 0.65rem 1.6rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  position: relative;
  overflow: hidden;
}

.btn-submit:hover {
  background: var(--link-hover);
  transform: translateY(-1px);
}

.btn-submit:active {
  transform: translateY(0);
}

/* success / error states */
.form-status {
  display: none;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border-left: 3px solid;
  margin-top: 0.5rem;
}

.form-status.success {
  display: block;
  background: rgba(100, 180, 100, 0.07);
  border-color: #6aab6a;
  color: #6aab6a;
}

.form-status.error {
  display: block;
  background: rgba(196, 112, 112, 0.07);
  border-color: var(--danger);
  color: var(--danger);
}

/* ── THEME TOGGLE ── */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: border-color 0.2s, color 0.2s, transform 0.3s ease;
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: rotate(20deg);
}

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

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

/* ── 404 PAGE ── */
.page-404 {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 6rem 0;
}

.page-404 .error-code {
  font-family: var(--mono);
  font-size: clamp(5rem, 18vw, 10rem);
  font-weight: 600;
  color: var(--border);
  line-height: 1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.04em;
  position: relative;
}

.page-404 .error-code::after {
  content: 'NOT FOUND';
  position: absolute;
  bottom: 0.6rem;
  left: 0.1em;
  font-size: 0.12em;
  letter-spacing: 0.3em;
  color: var(--accent);
  font-weight: 600;
}

.page-404 h1 {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.page-404 p {
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 2rem;
  max-width: 400px;
}

.btn-home {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius);
  padding: 0.55rem 1.2rem;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.btn-home:hover {
  background: var(--accent);
  color: var(--bg);
}

/* ══════════════════════════════════════
   BLOC 2 — Reading List, Now, Article,
            Tags filtrables
   ══════════════════════════════════════ */

/* ── TAG FILTER BAR ── */
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.tag-btn {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 2px;
  padding: 0.25rem 0.65rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.tag-btn:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

.tag-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(232, 184, 109, 0.06);
}

/* hidden by JS filter */
.essay-item[hidden],
.post-list li[hidden] { display: none; }

/* ── READING LIST ── */
.reading-section {
  margin-bottom: 3.5rem;
}

.reading-section-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.reading-section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.reading-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.book-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: border-color 0.2s, transform 0.2s;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

.book-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 100%;
  background: var(--border);
  transition: background 0.2s;
}

.book-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.book-card:hover::before {
  background: var(--accent);
}

.book-status {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.book-status.reading  { color: var(--accent); }
.book-status.read     { color: var(--text-muted); }
.book-status.wishlist { color: var(--link); }

.book-title {
  font-family: var(--serif);
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.35;
  color: var(--text);
}

.book-author {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.book-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.45;
  margin-top: 0.25rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

/* ── NOW PAGE ── */
.now-updated {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.now-updated::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

.now-section {
  margin-bottom: 3rem;
}

.now-section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-dim);
  margin-bottom: 0.75rem;
}

.now-section p {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 0.75rem;
}

.now-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.now-section ul li {
  font-size: 0.95rem;
  color: var(--text);
  padding-left: 1.2rem;
  position: relative;
  line-height: 1.55;
}

.now-section ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent-dim);
  font-family: var(--mono);
}

.now-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.now-footer-note {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  font-style: normal;
  line-height: 1.6;
}

.now-footer-note a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── ARTICLE TEMPLATE (full post) ── */
.article-header {
  padding: 3.5rem 0 2rem;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.25rem;
}

.article-tag-link {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--accent-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 0.15rem 0.5rem;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}

.article-tag-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Table of contents */
.toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-dim);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.5rem;
}

.toc-title {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.toc ol {
  list-style: none;
  counter-reset: toc;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.toc ol li {
  counter-increment: toc;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.toc ol li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--accent-dim);
  flex-shrink: 0;
}

.toc a {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
  line-height: 1.4;
}

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

/* Article body enrichi */
.article-body h3 {
  font-family: var(--mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 2rem 0 0.75rem;
  letter-spacing: 0.04em;
}

.article-body blockquote {
  border-left: 3px solid var(--accent-dim);
  padding: 0.75rem 0 0.75rem 1.25rem;
  margin: 1.75rem 0;
  color: var(--text-muted);
  font-style: italic;
}

.article-body code {
  font-family: var(--mono);
  font-size: 0.82em;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.1em 0.35em;
  border-radius: 2px;
  color: var(--accent);
}

.article-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.82rem;
  color: var(--text);
  line-height: 1.65;
}

/* Post navigation prev/next */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 2.5rem;
  margin-top: 3rem;
}

.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  text-decoration: none;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.post-nav-link:hover { border-color: var(--accent-dim); }

.post-nav-link.next { text-align: right; }

.post-nav-dir {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.post-nav-title {
  font-family: var(--serif);
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.35;
}

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .form-submit-row { flex-direction: column; align-items: flex-start; }

  .nav-toggle { display: block; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0;
  }

  .site-nav.open { display: flex; }

  .site-nav a {
    padding: 0.65rem 1.5rem;
    width: 100%;
  }

  .site-nav a::after { display: none; }

  .post-link { flex-direction: column; gap: 0.2rem; }
  .post-date { align-self: flex-end; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav-link.next { text-align: left; }
  .reading-grid { grid-template-columns: 1fr 1fr; }
}