/* ============================================================
   GUIDE-TRADING.FR — Design System v3
   Direction: Encyclopédie financière premium, dark mode
   Référence: Investopedia / Wikipedia Finance en dark
   ============================================================ */

/* ------------------------------------------------------------
   1. GOOGLE FONTS
   Heading : Plus Jakarta Sans — géométrique, droite, professionnelle
   Body    : Source Sans 3 — ultra-lisible longue lecture
   Mono    : JetBrains Mono — données & code
   INTERDIT : italic sur titres, font display condensée, letter-spacing négatif excessif
   ------------------------------------------------------------ */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Source+Sans+3:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ------------------------------------------------------------
   2. VARIABLES CSS
   ------------------------------------------------------------ */
:root {
  /* Couleurs */
  --color-bg: #0A0E17;
  --color-bg-card: #111827;
  --color-bg-elevated: #1F2937;
  --color-bg-footer: #070B12;
  --color-primary: #3B82F6;
  --color-primary-glow: #60A5FA;
  --color-primary-dark: #2563EB;
  --color-primary-muted: rgba(59, 130, 246, 0.08);
  --color-secondary: #10B981;
  --color-secondary-muted: rgba(16, 185, 129, 0.08);
  --color-danger: #EF4444;
  --color-danger-muted: rgba(239, 68, 68, 0.06);
  --color-text: #F9FAFB;
  --color-text-muted: #9CA3AF;
  --color-text-dim: #6B7280;
  --color-border: #374151;
  --color-border-subtle: #1F2937;
  --color-accent-gold: #F59E0B;

  /* Typographie */
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Espacements */
  --container-max: 1140px;
  --container-narrow: 740px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;
  --spacing-3xl: 3rem;
  --spacing-4xl: 4rem;
  --spacing-5xl: 5rem;

  /* Bordures & Ombres */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);

  /* Transitions */
  --transition: 0.2s ease;
  --transition-slow: 0.5s ease;

  /* Navbar */
  --navbar-h: 60px;
}

/* ------------------------------------------------------------
   3. RESET CSS MODERNE
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--navbar-h) + 1rem);
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: var(--color-primary-glow);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

::selection {
  background: rgba(59, 130, 246, 0.25);
  color: var(--color-text);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: #374151; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #4B5563; }

/* ------------------------------------------------------------
   4. BASE STYLES — Typographie éditoriale
   ------------------------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-style: normal;
  line-height: 1.25;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border-subtle);
}

h3 {
  font-size: 1.1875rem;
  font-weight: 600;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
}

h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-xs);
}

h5 {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

h6 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Article content — texte principal plus lisible */
.article-content p,
.article-content li {
  color: rgba(249, 250, 251, 0.9);
}

.article-content ul,
.article-content ol {
  margin-bottom: var(--spacing-md);
  padding-left: 1.5rem;
}

.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }

.article-content li {
  margin-bottom: 0.35rem;
}

.article-content li::marker {
  color: var(--color-primary);
}

/* Liens dans articles — soulignés, style encyclopédie */
.article-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: rgba(96, 165, 250, 0.4);
}

.article-content a:hover {
  color: var(--color-text);
  text-decoration-color: var(--color-primary);
}

strong, b {
  font-weight: 600;
  color: var(--color-text);
}

small {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Code */
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-bg-elevated);
  color: var(--color-primary-glow);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

pre {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  overflow-x: auto;
  margin-bottom: var(--spacing-xl);
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  line-height: 1.6;
}

blockquote {
  border-left: 3px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

hr {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin: var(--spacing-3xl) 0;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-xl);
  font-size: 0.9375rem;
}

th, td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-subtle);
}

th {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  background: var(--color-bg-card);
}

td {
  color: var(--color-text-muted);
}

/* ------------------------------------------------------------
   5. LAYOUT UTILITIES
   ------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
}

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

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section + .section {
  border-top: 1px solid var(--color-border-subtle);
}

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ------------------------------------------------------------
   6. BARRE DE PROGRESSION DE LECTURE
   ------------------------------------------------------------ */
.reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--color-primary);
  z-index: 1001;
  transition: width 80ms linear;
}

/* ------------------------------------------------------------
   7. NAVBAR
   ------------------------------------------------------------ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: background var(--transition);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  height: var(--navbar-h);
}

.navbar--scrolled {
  background: rgba(10, 14, 23, 0.96);
  border-bottom-color: var(--color-border);
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.navbar__logo:hover {
  color: var(--color-text);
  text-decoration: none;
}

.navbar__logo-mark {
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: 0.65rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.navbar__logo-text span {
  color: var(--color-text-muted);
  font-weight: 400;
}

/* Nav links */
.navbar__nav {
  display: none;
  align-items: center;
  gap: 0;
}

.navbar__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.5rem 0.75rem;
  transition: color var(--transition);
  text-decoration: none;
}

.navbar__link:hover {
  color: var(--color-text);
  text-decoration: none;
}

.navbar__link--active {
  color: var(--color-text);
}

/* Search */
.navbar__search {
  display: none;
  position: relative;
}

.navbar__search-input {
  width: 180px;
  padding: 0.35rem 0.6rem 0.35rem 2rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.8125rem;
  transition: all var(--transition);
}

.navbar__search-input::placeholder {
  color: var(--color-text-dim);
}

.navbar__search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  width: 220px;
}

.navbar__search-icon {
  position: absolute;
  left: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-dim);
  font-size: 0.8rem;
  pointer-events: none;
}

/* Hamburger */
.navbar__hamburger {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0.5rem;
}

.navbar__hamburger span {
  width: 18px;
  height: 1.5px;
  background: var(--color-text-muted);
  border-radius: 1px;
  transition: all 0.25s ease;
  transform-origin: center;
}

.nav-open .navbar__hamburger span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.nav-open .navbar__hamburger span:nth-child(2) {
  opacity: 0;
}

.nav-open .navbar__hamburger span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

/* Mobile panel */
.navbar__mobile-panel {
  display: none;
  position: fixed;
  top: var(--navbar-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 14, 23, 0.98);
  padding: var(--spacing-xl) var(--spacing-md);
  z-index: 999;
  overflow-y: auto;
}

.nav-open .navbar__mobile-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.navbar__mobile-panel .navbar__link {
  font-size: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border-subtle);
  display: block;
}

.navbar__mobile-search {
  margin-top: var(--spacing-md);
}

.navbar__mobile-search .navbar__search-input {
  width: 100%;
}

/* ------------------------------------------------------------
   8. HERO — sobre, éditorial, texte aligné à gauche
   ------------------------------------------------------------ */
.hero {
  padding: var(--spacing-4xl) 0 var(--spacing-3xl);
  border-bottom: 1px solid var(--color-border-subtle);
}

.hero__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero__eyebrow {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  font-style: normal;
  color: var(--color-primary-glow);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-md);
}

.hero__title {
  max-width: 600px;
  margin-bottom: var(--spacing-md);
  font-style: normal;
}

/* Accent color in hero title via inline span */

.hero__desc {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: var(--spacing-xl);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-3xl);
}

.hero__stats {
  display: flex;
  gap: var(--spacing-3xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border-subtle);
}

.hero__stat-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  font-style: normal;
  color: var(--color-text);
  display: block;
  line-height: 1.1;
}

.hero__stat-label {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  margin-top: 0.2rem;
}

/* ------------------------------------------------------------
   9. BOUTONS
   ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  color: var(--color-text);
  border-color: var(--color-text-dim);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-dim);
  border-color: var(--color-border);
  font-size: 0.8125rem;
  padding: 0.35rem 0.75rem;
}

.btn-ghost:hover {
  color: var(--color-text-muted);
  border-color: var(--color-text-dim);
}

.btn-sm { font-size: 0.8125rem; padding: 0.35rem 0.75rem; }
.btn-lg { font-size: 0.9375rem; padding: 0.65rem 1.5rem; }

/* ------------------------------------------------------------
   10. CARDS
   ------------------------------------------------------------ */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg) var(--spacing-xl);
  transition: all var(--transition);
}

.card:hover {
  border-color: var(--color-border);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

/* Card article */
.card-article {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  text-decoration: none;
}

.card-article__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  font-style: normal;
  color: var(--color-text);
  line-height: 1.3;
  transition: color var(--transition);
}

.card:hover .card-article__title {
  color: var(--color-primary-glow);
}

.card-article__excerpt {
  font-size: 0.875rem;
  color: var(--color-text-dim);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-article__meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-dim);
  margin-top: auto;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border-subtle);
  letter-spacing: 0.02em;
}

/* Card tool */
.card-tool {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.card-tool__icon {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary-glow);
  background: var(--color-primary-muted);
  border: 1px solid var(--color-border-subtle);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  transition: all var(--transition);
}

.card:hover .card-tool__icon {
  border-color: var(--color-primary);
}

.card-tool__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.card-tool__desc {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  line-height: 1.5;
}

/* Card start — parcours numérotés */
.card-start {
  display: flex;
  gap: var(--spacing-md);
  text-decoration: none;
  align-items: flex-start;
}

.card-start__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-dim);
  background: var(--color-bg-elevated);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border: 1px solid var(--color-border-subtle);
  transition: all var(--transition);
}

.card:hover .card-start__num {
  color: var(--color-primary-glow);
  border-color: var(--color-primary);
  background: var(--color-primary-muted);
}

.card-start__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.card-start__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-style: normal;
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: color var(--transition);
}

.card:hover .card-start__title {
  color: var(--color-primary-glow);
}

.card-start__desc {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  line-height: 1.5;
}

/* ------------------------------------------------------------
   11. TAGS DE CATÉGORIE
   ------------------------------------------------------------ */
.tag {
  display: inline-flex;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.tag-at { background: rgba(59,130,246,0.15); color: #60A5FA; }
.tag-orderflow { background: rgba(139,92,246,0.15); color: #A78BFA; }
.tag-risk { background: rgba(16,185,129,0.15); color: #34D399; }
.tag-psycho { background: rgba(245,158,11,0.15); color: #FBBF24; }
.tag-propfirm { background: rgba(239,68,68,0.15); color: #F87171; }
.tag-debutant { background: rgba(34,211,238,0.15); color: #22D3EE; }
.tag-fiscal { background: rgba(168,162,158,0.15); color: #A8A29E; }
.tag-priceaction { background: rgba(244,114,182,0.15); color: #F472B6; }
.tag-crypto { background: rgba(245,158,11,0.15); color: #F59E0B; }
.tag-forex { background: rgba(99,102,241,0.15); color: #818CF8; }

/* ------------------------------------------------------------
   12. ENCADRÉS ÉDITORIAUX
   ------------------------------------------------------------ */
.callout {
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  border-left: 3px solid;
  margin: var(--spacing-xl) 0;
}

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

.callout__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.3rem;
}

.tip-box { border-color: var(--color-secondary); background: var(--color-secondary-muted); }
.tip-box .callout__title { color: var(--color-secondary); }

.warning-box { border-color: var(--color-danger); background: var(--color-danger-muted); }
.warning-box .callout__title { color: var(--color-danger); }

.definition-box { border-color: var(--color-primary); background: var(--color-primary-muted); }
.definition-box .callout__title { color: var(--color-primary-glow); }

.key-takeaway { border-color: var(--color-accent-gold); background: rgba(245,158,11,0.06); }
.key-takeaway .callout__title { color: var(--color-accent-gold); }

/* ------------------------------------------------------------
   13. ARTICLE LAYOUT (2 colonnes)
   ------------------------------------------------------------ */
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.article-content {
  min-width: 0;
}

.article-content img {
  border-radius: var(--radius-md);
  margin: var(--spacing-xl) 0;
}

.article-sidebar {
  display: none;
}

.article-header {
  padding-bottom: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-subtle);
}

.article-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: var(--spacing-sm);
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

/* ------------------------------------------------------------
   14. TABLE DES MATIÈRES (sidebar)
   ------------------------------------------------------------ */
.toc {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  position: sticky;
  top: calc(var(--navbar-h) + 1rem);
}

.toc__title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-dim);
  padding: 0.25rem 0.5rem;
  margin-bottom: 0.25rem;
}

.toc__list {
  list-style: none;
}

.toc__link {
  display: block;
  padding: 0.25rem 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  border-left: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
}

.toc__link:hover {
  color: var(--color-text-muted);
  text-decoration: none;
}

.toc__link.active {
  color: var(--color-primary-glow);
  border-left-color: var(--color-primary);
  background: var(--color-primary-muted);
}

.toc__link--h3 {
  padding-left: 1.25rem;
  font-size: 0.75rem;
}

/* ------------------------------------------------------------
   15. BREADCRUMB
   ------------------------------------------------------------ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
  padding: var(--spacing-md) 0;
  font-size: 0.8125rem;
}

.breadcrumb__link {
  color: var(--color-text-dim);
  text-decoration: none;
}

.breadcrumb__link:hover {
  color: var(--color-primary-glow);
  text-decoration: none;
}

.breadcrumb__separator {
  color: var(--color-text-dim);
  font-size: 0.625rem;
}

.breadcrumb__current {
  color: var(--color-text-muted);
}

/* ------------------------------------------------------------
   16. SECTION HEADERS
   ------------------------------------------------------------ */
.section-header {
  margin-bottom: var(--spacing-xl);
}

.section-header__overline {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary-glow);
  margin-bottom: var(--spacing-sm);
}

.section-header__title {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
  border-bottom: none;
  padding-bottom: 0;
}

.section-header__subtitle {
  color: var(--color-text-dim);
  max-width: 520px;
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ------------------------------------------------------------
   17. LEXIQUE
   ------------------------------------------------------------ */
.alpha-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  padding: var(--spacing-sm) 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.alpha-nav__btn {
  min-width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--color-text-dim);
  background: transparent;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}

.alpha-nav__btn:hover,
.alpha-nav__btn.active {
  color: var(--color-primary-glow);
  border-color: var(--color-primary);
  background: var(--color-primary-muted);
}

.lexique-term {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--spacing-sm) var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  transition: border-color var(--transition);
}

.lexique-term:hover {
  border-left-color: var(--color-primary-glow);
}

.lexique-term__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.lexique-term__title a {
  color: inherit;
  text-decoration: none;
}

.lexique-term__title a:hover {
  color: var(--color-primary-glow);
  text-decoration: none;
}

.lexique-term__def {
  font-size: 0.875rem;
  color: var(--color-text-dim);
  line-height: 1.6;
}

/* Search bar */
.search-bar {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.search-bar__input {
  width: 100%;
  padding: 0.65rem 0.85rem 0.65rem 2.5rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 0.9375rem;
  transition: border-color var(--transition);
}

.search-bar__input::placeholder {
  color: var(--color-text-dim);
}

.search-bar__input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.search-bar__icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-dim);
  pointer-events: none;
}

/* ------------------------------------------------------------
   18. OUTILS INTERACTIFS
   ------------------------------------------------------------ */
.tool-form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
}

.tool-form__group {
  margin-bottom: var(--spacing-md);
}

.tool-form__label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}

.tool-form__input,
.tool-form__select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.tool-form__input:focus,
.tool-form__select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.tool-result {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  margin-top: var(--spacing-md);
}

.tool-result__value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
}

.tool-result__label {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  margin-top: 0.2rem;
}

.result-good .tool-result__value { color: var(--color-secondary); }
.result-warning .tool-result__value { color: var(--color-accent-gold); }
.result-danger .tool-result__value { color: var(--color-danger); }

/* Filter bar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding: var(--spacing-sm) 0;
}

.filter-btn {
  padding: 0.3rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-dim);
  background: transparent;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--color-primary-glow);
  border-color: var(--color-primary);
  background: var(--color-primary-muted);
}

/* ------------------------------------------------------------
   19. FAQ
   ------------------------------------------------------------ */
.faq-section details {
  border-bottom: 1px solid var(--color-border-subtle);
}

.faq-section summary {
  padding: var(--spacing-sm) 0;
  cursor: pointer;
  color: var(--color-text);
  font-weight: 500;
  font-size: 1rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-section summary::-webkit-details-marker { display: none; }
.faq-section summary::after { content: '+'; font-family: var(--font-mono); color: var(--color-text-dim); }
.faq-section details[open] summary::after { content: '−'; }
.faq-section details p { padding-bottom: var(--spacing-sm); }

/* ------------------------------------------------------------
   20. FOOTER
   ------------------------------------------------------------ */
.footer {
  background: var(--color-bg-footer);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer__brand-desc {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  line-height: 1.6;
  margin-top: 0.4rem;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.footer__link {
  color: var(--color-text-dim);
  font-size: 0.8125rem;
  transition: color var(--transition);
  text-decoration: none;
}

.footer__link:hover {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer__bottom {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: center;
}

.footer__copy {
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

.footer__legal {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
}

.footer__legal a {
  color: var(--color-text-dim);
  text-decoration: none;
}

.footer__legal a:hover {
  color: var(--color-text-muted);
}

/* ------------------------------------------------------------
   21. ANIMATIONS — subtiles, pas flashy
   ------------------------------------------------------------ */
.fade-in {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in[data-delay="1"] { transition-delay: 0.05s; }
.fade-in[data-delay="2"] { transition-delay: 0.1s; }
.fade-in[data-delay="3"] { transition-delay: 0.15s; }
.fade-in[data-delay="4"] { transition-delay: 0.2s; }

.counter-value {
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------
   22. RESPONSIVE — Tablette (768px)
   ------------------------------------------------------------ */
@media (min-width: 768px) {
  .container,
  .container-narrow {
    padding: 0 var(--spacing-xl);
  }

  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .hero {
    padding: var(--spacing-5xl) 0 var(--spacing-3xl);
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ------------------------------------------------------------
   23. RESPONSIVE — Desktop (1024px)
   ------------------------------------------------------------ */
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }

  .navbar__nav { display: flex; }
  .navbar__search { display: block; }
  .navbar__hamburger { display: none; }
  .navbar__mobile-panel { display: none !important; }

  .article-layout {
    grid-template-columns: 1fr 260px;
    gap: var(--spacing-3xl);
  }

  .article-sidebar { display: block; }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* ------------------------------------------------------------
   24. PRINT
   ------------------------------------------------------------ */
@media print {
  .navbar,
  .reading-progress-bar,
  .article-sidebar,
  .footer,
  .hero__actions {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }

  a { color: #000; text-decoration: underline; }

  .article-layout {
    grid-template-columns: 1fr;
  }
}