:root {
  --bg:                #fcf9f8;
  --surface:           rgba(255, 255, 255, 1);
  --surface-2:         #f9f3f2;
  --border:            #efe5e1;
  --border-soft:       #f9f3f2;
  --text:              #523930;
  --text-muted:        #886b60;
  --text-dim:          #b69b91;
  --accent:            #c45232;
  --accent-glow:       rgba(196, 82, 50, 0.08);
  --code-bg:           #f9f3f2;
  --code-border:       #efe5e1;
  --sidebar-w:   240px;
  --header-h:    56px;
  --font-sans:   'IBM Plex Sans', sans-serif;
  --font-mono:   'IBM Plex Mono', monospace;
  --font-serif:  'IBM Plex Serif', serif;

  /* Couleurs dérivées */
  --header-bg:         rgba(252, 249, 248, 0.92);
  --heading-color:     #261206;
  --strong-color:      #382319;
  --em-color:          #664d44;
  --code-text:         #664d44;
  --inline-code-color: #935640;
  --install-color:     #9c443b;
  --logo-name-color:   #261206;

  --clr-danger: #f87171;
  --clr-succes: #059669;

  /* Syntax highlight */
  --syn-kw:  #2563eb;
  --syn-str: #16a34a;
  --syn-cmt: #94a3b8;
  --syn-fn:  #b45309;
  --syn-tp:  #0891b2;
  --syn-nm:  #be185d;
}

[data-theme="dark"] {
  --bg:                #14110f;
  --surface:           #1f1a18;
  --surface-2:         #301f15;
  --border:            #342b26;
  --border-soft:       #2c231e;
  --text:              #dfd1cc;
  --text-muted:        #886b60;
  --text-dim:          #674537;
  --accent:            #e06e3d;
  --accent-glow:       rgba(224, 110, 61, 0.12);
  --code-bg:           #1e1612;
  --code-border:       #372923;

  /* Couleurs dérivées (overridées par le thème clair) */
  --header-bg:         rgba(22, 16, 12, 0.92);
  --heading-color:     #efe5e1;
  --strong-color:      #eee0db;
  --em-color:          #c5aea3;
  --code-text:         #b69b91;
  --inline-code-color: #f7ab95;
  --install-color:     #ffabb1;
  --logo-name-color:   #efe5e1;

  --clr-danger: #f87171;
  --clr-succes: #34d399;

  /* Syntax highlight */
  --syn-kw:  #7c9cf8;
  --syn-str: #86efac;
  --syn-cmt: #4b5d7a;
  --syn-fn:  #fbbf24;
  --syn-tp:  #67e8f9;
  --syn-nm:  #f9a8d4;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

/* ── HEADER ── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  z-index: 100;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 28px; height: 28px;
  background: white;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0px 0px 1px rgba(0,0,0,.4);
}

.logo-icon img { width: 26px; height: 26px; }

.logo-name {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--logo-name-color);
  letter-spacing: -.01em;
}

.logo-version {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(79,142,247,.25);
  padding: 1px 6px;
  border-radius: 4px;
  letter-spacing: .02em;
}

.header-spacer { flex: 1; }

.header-links {
  display: flex; align-items: center; gap: 4px;
}

.header-link {
  display: flex; align-items: center; gap: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 6px;
  transition: color .15s, background .15s;
}

.header-link:hover {
  color: var(--text);
  background: var(--surface);
}

.header-link svg { width: 15px; height: 15px; fill:currentColor }

/* Hamburger */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  margin-left: 8px;
}

/* ── LAYOUT ── */
.layout {
  display: flex;
  padding-top: var(--header-h);
  min-height: 100vh;
}

/* ── SIDEBAR ── */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: fixed;
  top: var(--header-h);
  left: 0;
  bottom: 0;
  overflow-y: auto;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 0 40px;
  transition: transform .25s ease;
}

.sidebar-section {
  padding: 0 14px;
}

.sidebar-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: 0 6px;
  margin-bottom: 6px;
  margin-top: 20px;
}

.sidebar-label:first-child { margin-top: 0; }

.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 400;
  padding: 6px 10px;
  border-radius: 6px;
  transition: color .15s, background .15s;
  margin-bottom: 1px;
}

.sidebar nav a:hover {
  color: var(--text);
  background: var(--surface-2);
}

.sidebar nav a.active {
  color: var(--accent);
  background: var(--accent-glow);
  font-weight: 500;
}

.sidebar nav a .nav-icon {
  width: 16px; height: 16px;
  fill: currentColor;
  opacity: .5;
  flex-shrink: 0;
}

.sidebar-divider {
  border: none;
  border-top: 1px solid var(--border-soft);
  margin: 16px 20px;
}

/* ── MAIN CONTENT ── */
.content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
}

.content-inner {
  padding: 48px 56px 96px;
  margin: auto;
}

/* ── HERO ── */
.hero {
  text-align: center;
  padding: 32px 0 48px;
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 48px;
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: 38px;
  font-weight: 600;
  color: var(--heading-color);
  letter-spacing: -.02em;
  margin-bottom: 16px;
  line-height: 1.2;
}

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

.hero-sub {
  font-size: 16px;
  font-weight: 300;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.65;
  font-family: var(--font-serif);
  font-style: italic;
}

.badges {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 4px;
}

/* ── MARKDOWN CONTENT ── */
.md-body h1 {
  font-family: var(--font-sans);
  margin: 24px 0 16px;
  font-size: 30px;
  font-weight: 600;
  color: var(--heading-color);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.md-body h2 {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 600;
  color: var(--heading-color);
  margin: 48px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-soft);
  letter-spacing: -.01em;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.md-body h3 {
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
  margin: 28px 0 10px;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.md-body p {
  margin-bottom: 16px;
  color: var(--text);
}

.md-body p:last-child { margin-bottom: 0; }

.md-body strong {
  color: var(--strong-color);
  font-weight: 600;
}

.md-body em {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--em-color);
}

.md-body a {
  color: var(--accent);
  text-decoration: none;
  /* border-bottom: 1px solid rgba(79,142,247,.3); */
  transition: border-color .15s;
}

/* .md-body a:hover { border-color: var(--accent); } */

/* Inline code */
.md-body code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--inline-code-color);
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 1px 5px;
  border-radius: 4px;
}

/* Code blocks */
.md-body pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 8px;
  padding: 20px 24px;
  overflow-x: auto;
  margin: 20px 0;
  position: relative;
}

.md-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--code-text);
  font-size: 13px;
  line-height: 1.7;
}

/* Language tag on code blocks */
.md-body pre[data-lang]::before {
  content: attr(data-lang);
  position: absolute;
  top: 10px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .08em;
}

/* Tables */
.md-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 13.5px;
}

.md-body th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  text-align: left;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.md-body th:first-child { border-radius: 6px 0 0 0; }
.md-body th:last-child  { border-radius: 0 6px 0 0; }

.md-body td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text);
  vertical-align: top;
}

.md-body td code { font-size: 12px; }

.md-body tr:last-child td { border-bottom: none; }

.md-body table {
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

/* Horizontal rule */
.md-body hr {
  border: none;
  border-top: 1px solid var(--border-soft);
  margin: 40px 0;
}

/* Block quote */
.md-body blockquote {
  border-left: 3px solid var(--accent);
  padding: 12px 20px;
  margin: 20px 0;
  background: var(--accent-glow);
  border-radius: 0 6px 6px 0;
  font-style: italic;
  color: var(--text-muted);
}

/* Lists */
.md-body ul, .md-body ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.md-body li { margin-bottom: 4px; }

/* Install box */
.install-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 14px 20px;
  margin: 16px 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--install-color);
}

.install-box .prompt {
  color: var(--text-dim);
  user-select: none;
}

/* Callout cards */
.callout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 20px 0;
}

.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 18px;
  font-size: 13.5px;
}

.callout-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 6px;
}

.callout.good .callout-label { color: var(--clr-succes); }
.callout.bad  .callout-label { color: var(--clr-danger); }
.callout p { color: var(--text-muted); margin: 0; font-size: 13px; }

/* Performance section */
.bench-wrap {
  overflow-x: auto;
  margin: 20px 0;
}

/* ── FOOTER ── */
.content-footer {
  margin-top: 64px;
  padding: 24px 0;
  border-top: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-dim);
  font-size: 12px;
  font-family: var(--font-mono);
}

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

.content-footer a:hover { color: var(--accent); }

/* ── OVERLAY (mobile) ── */
.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 49;
  backdrop-filter: blur(2px);
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .content-inner { padding: 40px 40px 80px; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 260px; }

  .menu-toggle { display: flex; align-items: center; justify-content: center; }

  .sidebar {
    transform: translateX(-100%);
    z-index: 50;
    box-shadow: 4px 0 24px rgba(0,0,0,.4);
  }

  .sidebar.open { transform: translateX(0); }

  .overlay.open { display: block; }

  .content { margin-left: 0; }

  .content-inner { padding: 28px 20px 80px; }

  .hero h1 { font-size: 26px; }
  .hero-sub { font-size: 14.5px; }

  .callout-grid { grid-template-columns: 1fr; }

  .header-links { display: none; }
}

@media (max-width: 480px) {
  .content-inner { padding: 20px 16px 80px; }
}
@media (min-width: 960px) {
  .content-inner { width: 80%; }
}

/* ── SYNTAX HIGHLIGHT (minimal) ── */
.kw  { color: var(--syn-kw); }
.str { color: var(--syn-str); }
.cmt { color: var(--syn-cmt); font-style: italic; }
.fn  { color: var(--syn-fn); }
.tp  { color: var(--syn-tp); }
.nm  { color: var(--syn-nm); }
.atr  { color: var(--syn-nm); }
.bld  { color: var(--syn-tp); font-weight: bold; }
.cst  { color: var(--syn-nm); font-weight: bold; }

/* ── THEME TOGGLE ── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  cursor: pointer;
  transition: color .15s, background .15s, border-color .15s;
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--text);
  background: var(--surface);
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.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; }