/* ==========================================================================
   linkavista-experience.fr
   Feuille de style unique, ecrite a la main.
   Concept : carnet de bord editorial, papier legerement teinte, timeline verticale.
   Mode clair uniquement.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Variables
   -------------------------------------------------------------------------- */
:root {
  /* Fonds */
  --paper: #FFFFFF;
  --paper-alt: #FFFBF2;
  --surface: #FFFDF8;
  --surface-deep: #FDF6E9;

  /* Textes */
  --ink: #25211A;
  --ink-soft: #6B6154;
  --ink-faint: #8C8171;

  /* Accents */
  --amber: #B45309;
  --amber-dark: #8F4207;
  --amber-light: #FDF1E0;
  --amber-glow: #F5D8AF;
  --blue: #1E3A8A;
  --blue-dark: #16306E;
  --blue-light: #EAEFFA;

  /* Bordures */
  --line: #EDE3D2;
  --line-strong: #DFD1B8;

  /* Rayons */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-pill: 999px;

  /* Ombres */
  --shadow-soft: 0 2px 10px rgba(37, 33, 26, 0.05);
  --shadow-card: 0 6px 22px rgba(37, 33, 26, 0.07);
  --shadow-lift: 0 14px 40px rgba(37, 33, 26, 0.12);
  --shadow-polaroid: 0 10px 30px rgba(37, 33, 26, 0.16);

  /* Espacements */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 88px;
  --sp-10: 120px;

  /* Transitions */
  --t-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-base: 280ms cubic-bezier(0.33, 0.06, 0.16, 1);
  --t-slow: 460ms cubic-bezier(0.22, 0.61, 0.36, 1);

  /* Typographie */
  --font-title: "Lora", Georgia, "Times New Roman", serif;
  --font-body: "Source Sans 3", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Mesures */
  --wrap: 1180px;
  --wrap-narrow: 780px;
  --header-h: 74px;
}

/* --------------------------------------------------------------------------
   2. Reset moderne
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 24px); }
body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.72;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-title);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
  letter-spacing: -0.008em;
}
p { margin: 0 0 var(--sp-4); }
ul, ol { margin: 0 0 var(--sp-4); padding-left: 1.35em; }
li { margin-bottom: var(--sp-2); }
a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--t-fast);
}
a:hover { color: var(--amber); }
img { max-width: 100%; height: auto; display: block; }
figure { margin: 0; }
table { border-collapse: collapse; width: 100%; }
button { font-family: inherit; font-size: inherit; cursor: pointer; }
strong, b { font-weight: 600; color: var(--ink); }
abbr[title] { text-decoration: underline dotted; cursor: help; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: var(--r-xs); }
::selection { background: var(--amber-glow); color: var(--ink); }

/* --------------------------------------------------------------------------
   3. Utilitaires de mise en page
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}
.wrap-narrow {
  width: 100%;
  max-width: var(--wrap-narrow);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  top: -60px;
  left: var(--sp-4);
  z-index: 200;
  background: var(--amber);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  font-weight: 600;
  transition: top var(--t-fast);
}
.skip-link:focus { top: 12px; color: #fff; }
section { padding-block: clamp(48px, 6vw, 88px); }
.band-alt { background: var(--paper-alt); border-block: 1px solid var(--line); }
.band-deep { background: var(--surface-deep); border-block: 1px solid var(--line-strong); }

/* --------------------------------------------------------------------------
   4. Elements typographiques du carnet
   -------------------------------------------------------------------------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.735rem;
  font-weight: 600;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: var(--sp-3);
}
.kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--amber);
  border-radius: 2px;
}
.kicker-blue { color: var(--blue); }
.kicker-blue::before { background: var(--blue); }
.section-title { font-size: clamp(1.6rem, 1.15rem + 1.85vw, 2.45rem); max-width: 22ch; }
.section-title.wide { max-width: 30ch; }
.lede { font-size: clamp(1.06rem, 1rem + 0.35vw, 1.2rem); color: var(--ink-soft); max-width: 68ch; }
.section-head { margin-bottom: var(--sp-7); }
.section-head.centered { text-align: center; }
.section-head.centered .section-title,
.section-head.centered .lede { margin-inline: auto; }
.section-head.centered .kicker { justify-content: center; }

/* Etiquette de semaine, petites majuscules espacees */
.week-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faint);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  padding: 5px 14px;
  border-radius: var(--r-pill);
  margin-bottom: var(--sp-3);
}

/* --------------------------------------------------------------------------
   5. Header et navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--t-base), padding var(--t-base), background var(--t-base);
}
.site-header.is-compact { box-shadow: var(--shadow-soft); background: rgba(255, 253, 248, 0.97); }
.header-inner {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: var(--header-h);
  transition: min-height var(--t-base);
}
.site-header.is-compact .header-inner { min-height: 60px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
  white-space: nowrap;
}
.brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: var(--r-sm);
}
.brand span { white-space: nowrap; }
.brand span em { font-style: italic; color: var(--amber); font-weight: 600; }
.nav { display: flex; flex-wrap: nowrap; align-items: center; gap: var(--sp-1); }
.nav-extra { display: none; }
.nav a {
  display: inline-block;
  padding: 8px 12px;
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  border-radius: var(--r-sm);
  white-space: nowrap;
  transition: color var(--t-fast), background var(--t-fast);
}
.nav a:hover,
.nav a.is-active { color: var(--amber); background: var(--amber-light); }
.header-actions { display: flex; flex-wrap: nowrap; align-items: center; gap: var(--sp-3); }
.header-actions .btn { white-space: nowrap; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  padding: 0;
}
.nav-toggle span {
  display: block;
  position: relative;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: background var(--t-fast);
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform var(--t-base), top var(--t-base);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* Barre de progression de lecture */
.read-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--amber-glow), var(--amber));
  transition: width 90ms linear;
}

/* --------------------------------------------------------------------------
   6. Boutons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.985rem;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--t-fast), box-shadow var(--t-base), background var(--t-fast), color var(--t-fast);
}
.btn-primary { background: var(--amber); color: #FFFFFF; box-shadow: 0 6px 18px rgba(180, 83, 9, 0.24); }
.btn-primary:hover {
  background: var(--amber-dark);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(180, 83, 9, 0.3);
}
.btn-ghost { background: transparent; color: var(--blue); border-color: var(--line-strong); }
.btn-ghost:hover {
  background: var(--blue-light);
  color: var(--blue-dark);
  border-color: var(--blue);
  transform: translateY(-2px);
}
.btn-small { padding: 9px 18px; font-size: 0.88rem; }
.btn-arrow {
  font-size: 1.1em;
  line-height: 1;
  transition: transform var(--t-fast);
}
.btn:hover .btn-arrow { transform: translateX(3px); }
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
}

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(40px, 5vw, 72px) clamp(48px, 6vw, 84px);
  background:
    radial-gradient(1000px 460px at 82% -8%, var(--amber-light), transparent 62%),
    linear-gradient(180deg, var(--paper-alt), var(--paper) 78%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(180, 83, 9, 0.045) 0 1px, transparent 1px 34px);
  pointer-events: none;
  opacity: 0.7;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(1.95rem, 1.15rem + 3.3vw, 3.3rem);
  line-height: 1.13;
  margin-bottom: var(--sp-5);
  letter-spacing: -0.018em;
}
.hero h1 em { font-style: italic; color: var(--amber); }
.hero-lede {
  font-size: clamp(1.06rem, 1rem + 0.42vw, 1.24rem);
  color: var(--ink-soft);
  max-width: 56ch;
}

/* Signature courte sous le h1 */
.byline {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px 12px 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-soft);
  margin-bottom: var(--sp-5);
  max-width: 460px;
}
.byline img {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--amber-glow);
  flex-shrink: 0;
}
.byline-text {
  font-size: 0.875rem;
  line-height: 1.45;
  color: var(--ink-soft);
}
.byline-text strong {
  display: block;
  font-family: var(--font-title);
  font-size: 0.985rem;
  color: var(--ink);
}

/* Note globale */
.score-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  padding: 8px 20px 8px 10px;
  box-shadow: var(--shadow-soft);
  margin-bottom: var(--sp-4);
}
.score-value {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  background: var(--amber);
  color: #fff;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.12rem;
  padding: 5px 14px;
  border-radius: var(--r-pill);
}
.score-value small {
  font-size: 0.72rem;
  font-weight: 500;
  opacity: 0.85;
}
.score-label {
  font-size: 0.83rem;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

/* Encadre de contexte du hero */
.context-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  margin-top: var(--sp-5);
  box-shadow: var(--shadow-soft);
}
.context-box h2 {
  font-size: 1.02rem;
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: var(--sp-3);
}
.context-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}
.context-cols h3 {
  font-family: var(--font-body);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}
.context-cols .yes h3 { color: var(--amber); }
.context-cols .no h3 { color: var(--blue); }
.context-cols ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.context-cols li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 6px;
  line-height: 1.5;
}
.context-cols .yes li::before {
  content: "\002B";
  position: absolute;
  left: 0;
  color: var(--amber);
  font-weight: 700;
}
.context-cols .no li::before {
  content: "\00D7";
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 700;
}

/* Polaroid : cadre legerement incline */
.polaroid {
  position: relative;
  background: var(--paper);
  padding: 12px 12px 46px;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow-polaroid);
  transform: rotate(1deg);
  transition: transform var(--t-slow), box-shadow var(--t-slow);
}
.polaroid:hover { transform: rotate(0deg) translateY(-4px); box-shadow: var(--shadow-lift); }
.polaroid img { width: 100%; border-radius: 3px; }
.polaroid figcaption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  font-family: var(--font-title);
  font-style: italic;
  font-size: 0.86rem;
  color: var(--ink-soft);
  line-height: 1.35;
}
.polaroid.tilt-left { transform: rotate(-1deg); }
.polaroid.tilt-left:hover { transform: rotate(0deg) translateY(-4px); }
.polaroid::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
  width: 92px;
  height: 24px;
  background: rgba(245, 216, 175, 0.6);
  border: 1px solid rgba(180, 83, 9, 0.14);
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   8. Bandeau de chiffres cles
   -------------------------------------------------------------------------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp-4);
}
.stat {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.stat:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); }
.stat-num {
  display: block;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.7rem, 1.2rem + 1.7vw, 2.35rem);
  color: var(--amber);
  line-height: 1.05;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 0.855rem;
  color: var(--ink-soft);
  line-height: 1.4;
}
.stat-source {
  display: block;
  margin-top: 8px;
  font-size: 0.72rem;
  color: var(--ink-faint);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   9. Timeline verticale
   -------------------------------------------------------------------------- */
.timeline { position: relative; padding-block: clamp(40px, 5vw, 72px); }
.timeline-track {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  margin-left: -1.5px;
  background: var(--line-strong);
  border-radius: 3px;
  z-index: 0;
}
.timeline-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: linear-gradient(180deg, var(--amber-glow), var(--amber));
  border-radius: 3px;
  transition: height 120ms linear;
}
.step {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 96px minmax(0, 1fr);
  align-items: start;
  margin-bottom: clamp(36px, 4vw, 64px);
  padding-block: 0;
}
.step:last-child { margin-bottom: 0; }
.step-dot {
  grid-column: 2;
  justify-self: center;
  position: sticky;
  top: calc(var(--header-h) + 24px);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--line-strong);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.06rem;
  color: var(--ink-faint);
  box-shadow: 0 0 0 6px var(--paper);
  transition: background var(--t-base), border-color var(--t-base), color var(--t-base), transform var(--t-base);
}
.step.is-active .step-dot {
  background: var(--amber);
  border-color: var(--amber-glow);
  color: #fff;
  transform: scale(1.07);
  box-shadow: 0 0 0 6px var(--paper), 0 8px 22px rgba(180, 83, 9, 0.3);
}
.step-body {
  position: relative;
  min-width: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(20px, 2.4vw, 34px);
  box-shadow: var(--shadow-card);
  opacity: 0;
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.step:nth-child(odd) .step-body { grid-column: 1; transform: translateX(-26px); }
.step:nth-child(even) .step-body { grid-column: 3; transform: translateX(26px); }
.step.is-revealed .step-body { opacity: 1; transform: translateX(0); }
.step-body h2 { font-size: clamp(1.28rem, 1.08rem + 0.75vw, 1.7rem); }
.step-body h3 {
  font-size: 1.07rem;
  margin-top: var(--sp-5);
  color: var(--blue);
}
.step-body > p:last-child,
.step-body > ul:last-child { margin-bottom: 0; }

/* Pointe de la bulle vers la timeline */
.step-body::after {
  content: "";
  position: absolute;
  top: 32px;
  width: 14px;
  height: 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  transform: rotate(45deg);
}
.step:nth-child(odd) .step-body::after {
  right: -8px;
  border-left: none;
  border-bottom: none;
}
.step:nth-child(even) .step-body::after {
  left: -8px;
  border-right: none;
  border-top: none;
}

/* --------------------------------------------------------------------------
   10. Encadre "Ce que nous en retenons"
   -------------------------------------------------------------------------- */
.takeaway {
  position: relative;
  margin-top: var(--sp-5);
  padding: 18px 20px 18px 54px;
  background: var(--amber-light);
  border: 1px solid var(--amber-glow);
  border-radius: var(--r-md);
  font-size: 0.955rem;
  line-height: 1.6;
  color: #4A3A20;
}
.takeaway::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 16px;
  width: 18px;
  height: 26px;
  background: var(--amber);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 76%, 0 100%);
  border-radius: 2px 2px 0 0;
}
.takeaway strong {
  display: block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-dark);
  margin-bottom: 5px;
}
.takeaway p:last-child { margin-bottom: 0; }

/* Encadre methodologie */
.method-box {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-top: 4px solid var(--blue);
  border-radius: var(--r-md);
  padding: clamp(20px, 2.4vw, 32px);
  box-shadow: var(--shadow-card);
}
.method-box h3 { color: var(--blue); font-size: 1.18rem; }
.method-box ol {
  counter-reset: mstep;
  list-style: none;
  padding: 0;
  margin: var(--sp-4) 0 0;
}
.method-box ol li {
  counter-increment: mstep;
  position: relative;
  padding-left: 40px;
  margin-bottom: var(--sp-4);
  font-size: 0.955rem;
  color: var(--ink-soft);
}
.method-box ol li::before {
  content: counter(mstep);
  position: absolute;
  left: 0;
  top: 1px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 50%;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.83rem;
}
.method-box ol li strong { color: var(--ink); }

/* Citation Lora italique avec guillemet decoratif */
.pullquote {
  position: relative;
  margin: var(--sp-6) 0;
  padding: var(--sp-6) var(--sp-6) var(--sp-6) clamp(52px, 6vw, 84px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.pullquote::before {
  content: "\201C";
  position: absolute;
  left: 8px;
  top: -34px;
  font-family: var(--font-title);
  font-size: 12rem;
  line-height: 1;
  color: var(--amber-glow);
  opacity: 0.55;
  pointer-events: none;
}
.pullquote blockquote {
  margin: 0;
  font-family: var(--font-title);
  font-style: italic;
  font-size: clamp(1.08rem, 1rem + 0.55vw, 1.34rem);
  line-height: 1.52;
  color: var(--ink);
}
.pullquote cite {
  display: block;
  margin-top: var(--sp-3);
  font-family: var(--font-body);
  font-style: normal;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--amber-dark);
  letter-spacing: 0.02em;
}
.pullquote cite span {
  display: block;
  font-weight: 400;
  color: var(--ink-faint);
  letter-spacing: 0;
}

/* --------------------------------------------------------------------------
   11. Cartes et grilles
   -------------------------------------------------------------------------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-5);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-5);
}
.grid-split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}
#routine .grid-split { grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr); }
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  box-shadow: var(--shadow-soft);
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: var(--amber-glow);
}
.card h3 { font-size: 1.1rem; margin-bottom: var(--sp-2); }
.card p:last-child { margin-bottom: 0; }
.card-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--amber-light);
  color: var(--amber-dark);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: var(--sp-3);
}
.card-blue .card-num { background: var(--blue-light); color: var(--blue); }

/* Liste de reperes numerotes */
.lesson-list {
  counter-reset: lesson;
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--sp-4);
}
.lesson-list > li {
  counter-increment: lesson;
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--amber);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-5) var(--sp-5) 68px;
  box-shadow: var(--shadow-soft);
  margin-bottom: 0;
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.lesson-list > li:hover { transform: translateX(4px); box-shadow: var(--shadow-card); }
.lesson-list > li::before {
  content: counter(lesson, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 24px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.28rem;
  color: var(--amber-glow);
}
.lesson-list h3 { font-size: 1.09rem; margin-bottom: 6px; }
.lesson-list p:last-child { margin-bottom: 0; color: var(--ink-soft); }

/* Erreurs et corrections */
.mistake {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.mistake > div { padding: var(--sp-5); }
.mistake .m-bad { background: var(--surface-deep); border-right: 1px solid var(--line); }
.mistake h3 { font-size: 1.02rem; margin-bottom: var(--sp-2); }
.mistake .m-bad h3 { color: var(--amber-dark); }
.mistake .m-good h3 { color: var(--blue); }
.mistake p {
  font-size: 0.94rem;
  color: var(--ink-soft);
  margin-bottom: 0;
}
.mistake-tag {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--ink-faint);
  margin-bottom: 8px;
}

/* --------------------------------------------------------------------------
   12. Tableaux
   -------------------------------------------------------------------------- */
.grid-split > *,
.grid-2 > *,
.grid-3 > *,
.footer-grid > * { min-width: 0; }
.table-wrap {
  overflow-x: auto;
  max-width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  -webkit-overflow-scrolling: touch;
}
table.data { min-width: 640px; font-size: 0.93rem; }
table.data caption {
  caption-side: top;
  text-align: left;
  padding: var(--sp-4) var(--sp-5);
  font-family: var(--font-title);
  font-style: italic;
  font-size: 0.94rem;
  color: var(--ink-soft);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
table.data th,
table.data td {
  padding: 13px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}
table.data thead th {
  background: var(--surface-deep);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 2px solid var(--line-strong);
  white-space: nowrap;
}
table.data tbody th[scope="row"] {
  font-weight: 600;
  color: var(--ink);
  background: var(--surface);
  white-space: nowrap;
}
table.data tbody tr:last-child th,
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr { transition: background var(--t-fast); }
table.data tbody tr:hover { background: var(--amber-light); }
table.data .num { font-variant-numeric: tabular-nums; white-space: nowrap; }
table.data .sortable {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 30px;
}
table.data .sortable::after {
  content: "\2195";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.4;
  font-size: 0.9rem;
}
table.data .sortable[aria-sort="ascending"]::after {
  content: "\2191";
  opacity: 1;
  color: var(--amber);
}
table.data .sortable[aria-sort="descending"]::after {
  content: "\2193";
  opacity: 1;
  color: var(--amber);
}
.table-note {
  font-size: 0.83rem;
  color: var(--ink-faint);
  font-style: italic;
  margin-top: var(--sp-3);
}

/* --------------------------------------------------------------------------
   13. Onglets (parcours editeur)
   -------------------------------------------------------------------------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  border-bottom: 2px solid var(--line);
  margin-bottom: var(--sp-5);
  padding-bottom: 0;
}
.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 11px 18px;
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--ink-soft);
  border-radius: var(--r-sm) var(--r-sm) 0 0;
  margin-bottom: -2px;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}
.tab-btn:hover { color: var(--amber); background: var(--amber-light); }
.tab-btn[aria-selected="true"] { color: var(--amber-dark); border-bottom-color: var(--amber); }
.tab-panel[hidden] { display: none; }

/* --------------------------------------------------------------------------
   14. Checklist persistante
   -------------------------------------------------------------------------- */
.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.checklist li { margin-bottom: 0; }
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 18px;
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast), box-shadow var(--t-fast);
}
.check-item:hover { border-color: var(--amber-glow); box-shadow: var(--shadow-soft); }
.check-item input {
  appearance: none;
  -webkit-appearance: none;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin: 2px 0 0;
  border: 2px solid var(--line-strong);
  border-radius: var(--r-xs);
  background: var(--paper);
  cursor: pointer;
  position: relative;
  transition: background var(--t-fast), border-color var(--t-fast);
}
.check-item input:checked { background: var(--amber); border-color: var(--amber); }
.check-item input:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.check-item input:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
.check-item span { font-size: 0.955rem; line-height: 1.5; }
.check-item input:checked + span {
  color: var(--ink-faint);
  text-decoration: line-through;
  text-decoration-color: var(--amber-glow);
}
.checklist-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-5);
  padding: 14px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  flex-wrap: wrap;
}
.checklist-progress {
  flex: 1 1 200px;
  height: 9px;
  background: var(--line);
  border-radius: var(--r-pill);
  overflow: hidden;
}
.checklist-progress i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--amber-glow), var(--amber));
  border-radius: var(--r-pill);
  transition: width var(--t-base);
}
.checklist-count {
  font-weight: 700;
  font-family: var(--font-title);
  color: var(--amber-dark);
  font-size: 0.95rem;
  white-space: nowrap;
}
.checklist-reset {
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  padding: 6px 16px;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--ink-soft);
  transition: background var(--t-fast), color var(--t-fast);
}
.checklist-reset:hover { background: var(--amber-light); color: var(--amber-dark); }

/* --------------------------------------------------------------------------
   15. Glossaire
   -------------------------------------------------------------------------- */
.glossary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-4);
  margin: 0;
}
.gloss-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  box-shadow: var(--shadow-soft);
  transition: border-color var(--t-fast), transform var(--t-base);
}
.gloss-item:hover { border-color: var(--amber-glow); transform: translateY(-2px); }
.gloss-item dt {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.03rem;
  color: var(--amber-dark);
  margin-bottom: 6px;
}
.gloss-item dd {
  margin: 0;
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.58;
}
.gloss-filter {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
  margin-bottom: var(--sp-5);
  flex-wrap: wrap;
}
.gloss-filter label {
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.gloss-filter input {
  flex: 1 1 260px;
  max-width: 380px;
  padding: 11px 18px;
  font-family: inherit;
  font-size: 0.94rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.gloss-filter input:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px var(--amber-light);
}
.gloss-empty {
  font-style: italic;
  color: var(--ink-faint);
  padding: var(--sp-4);
}

/* --------------------------------------------------------------------------
   16. FAQ
   -------------------------------------------------------------------------- */
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color var(--t-fast), box-shadow var(--t-base);
}
.faq-item.is-open { border-color: var(--amber-glow); box-shadow: var(--shadow-card); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
  background: transparent;
  border: none;
  padding: 18px 22px;
  text-align: left;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 1.03rem;
  line-height: 1.4;
  color: var(--ink);
  transition: background var(--t-fast), color var(--t-fast);
}
.faq-q:hover { background: var(--amber-light); color: var(--amber-dark); }
.faq-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  position: relative;
  border-radius: 50%;
  background: var(--amber-light);
  transition: background var(--t-base), transform var(--t-base);
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--amber-dark);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: opacity var(--t-fast), transform var(--t-base);
}
.faq-icon::before { width: 11px; height: 2px; }
.faq-icon::after { width: 2px; height: 11px; }
.faq-q[aria-expanded="true"] .faq-icon { background: var(--amber); transform: rotate(180deg); }
.faq-q[aria-expanded="true"] .faq-icon::before { background: #fff; }
.faq-q[aria-expanded="true"] .faq-icon::after { opacity: 0; transform: translate(-50%, -50%) scaleY(0); }
.faq-a {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--t-slow), padding var(--t-slow);
}
.faq-item.is-open .faq-a { padding: 0 22px 20px; max-height: 900px; }
.faq-a p {
  color: var(--ink-soft);
  font-size: 0.96rem;
  margin-bottom: var(--sp-3);
}
.faq-a p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   17. Sources
   -------------------------------------------------------------------------- */
.sources {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--sp-3);
}
.sources li {
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--r-sm);
  padding: 14px 20px;
  font-size: 0.93rem;
  color: var(--ink-soft);
  margin-bottom: 0;
}
.sources li strong {
  display: block;
  font-family: var(--font-title);
  color: var(--ink);
  font-size: 0.99rem;
  margin-bottom: 3px;
}

/* --------------------------------------------------------------------------
   18. Bloc auteur
   -------------------------------------------------------------------------- */
.author-card {
  display: grid;
  grid-template-columns: 172px minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  padding: clamp(24px, 3vw, 40px);
  box-shadow: var(--shadow-card);
}
.author-photo { position: relative; }
.author-photo img {
  width: 172px;
  height: 172px;
  object-fit: cover;
  border-radius: var(--r-lg);
  border: 4px solid var(--paper);
  box-shadow: var(--shadow-polaroid);
  transform: rotate(-1deg);
}
.author-card h2 { font-size: 1.5rem; margin-bottom: 3px; }
.author-role {
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--amber);
  margin-bottom: var(--sp-4);
}
.author-bio { color: var(--ink-soft); }
.author-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--sp-4);
}
.author-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 17px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue);
  text-decoration: none;
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}
.author-links a:hover {
  background: var(--blue-light);
  border-color: var(--blue);
  transform: translateY(-2px);
}
.author-updated {
  margin-top: var(--sp-4);
  font-size: 0.83rem;
  color: var(--ink-faint);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   19. CTA final
   -------------------------------------------------------------------------- */
.cta-final {
  position: relative;
  background:
    radial-gradient(760px 340px at 20% 0%, var(--amber-light), transparent 65%),
    var(--surface-deep);
  border-block: 1px solid var(--line-strong);
  text-align: center;
}
.cta-final .section-title { margin-inline: auto; }
.cta-final .lede { margin-inline: auto; margin-bottom: var(--sp-5); }
.cta-final .btn-row { justify-content: center; }
.cta-disclaimer {
  margin-top: var(--sp-5);
  font-size: 0.83rem;
  color: var(--ink-faint);
  max-width: 62ch;
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   20. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--paper-alt);
  border-top: 1px solid var(--line-strong);
  padding-block: var(--sp-8) var(--sp-5);
  font-size: 0.93rem;
  color: var(--ink-soft);
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  margin-bottom: var(--sp-7);
}
.footer-grid h2 {
  font-family: var(--font-body);
  font-size: 0.76rem;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: var(--sp-4);
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--ink);
  text-decoration: none;
  margin-bottom: var(--sp-3);
}
.footer-brand img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}
.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-list li { margin-bottom: 9px; }
.footer-list a {
  color: var(--ink-soft);
  text-decoration: none;
  transition: color var(--t-fast), padding-left var(--t-fast);
  display: inline-block;
}
.footer-list a:hover { color: var(--amber); padding-left: 4px; }
.footer-note {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--sp-4) var(--sp-5);
  font-size: 0.86rem;
  line-height: 1.6;
  margin-bottom: var(--sp-5);
}
.footer-note p:last-child { margin-bottom: 0; }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: var(--sp-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: space-between;
  align-items: center;
  font-size: 0.83rem;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   21. Retour en haut
   -------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--amber);
  color: #fff;
  border: none;
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(180, 83, 9, 0.32);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--t-base), transform var(--t-base), visibility var(--t-base), background var(--t-fast);
}
.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.to-top:hover { background: var(--amber-dark); }
.to-top svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --------------------------------------------------------------------------
   22. Reveal generique
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal-left {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal-left.is-in { opacity: 1; transform: none; }
.reveal-right {
  opacity: 0;
  transform: translateX(24px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.reveal-right.is-in { opacity: 1; transform: none; }
.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}
.stagger.is-in > * { opacity: 1; transform: none; }
.stagger.is-in > *:nth-child(1) { transition-delay: 0ms; }
.stagger.is-in > *:nth-child(2) { transition-delay: 70ms; }
.stagger.is-in > *:nth-child(3) { transition-delay: 140ms; }
.stagger.is-in > *:nth-child(4) { transition-delay: 210ms; }
.stagger.is-in > *:nth-child(5) { transition-delay: 280ms; }
.stagger.is-in > *:nth-child(6) { transition-delay: 350ms; }
.stagger.is-in > *:nth-child(7) { transition-delay: 420ms; }
.stagger.is-in > *:nth-child(8) { transition-delay: 490ms; }

/* --------------------------------------------------------------------------
   23. Page 404
   -------------------------------------------------------------------------- */
.error-page {
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: var(--sp-9);
  background:
    radial-gradient(720px 340px at 50% 0%, var(--amber-light), transparent 65%),
    var(--paper);
}
.error-page .error-code {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(4rem, 2rem + 12vw, 8.5rem);
  line-height: 1;
  color: var(--amber-glow);
  margin-bottom: var(--sp-4);
}
.error-page h1 { font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.3rem); }
.error-page p {
  color: var(--ink-soft);
  max-width: 54ch;
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   24. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1200px) {
  :root { --wrap: 1040px; }
  .step { grid-template-columns: minmax(0, 1fr) 78px minmax(0, 1fr); }
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media {
    max-width: 520px;
    margin-inline: auto;
    order: -1;
  }
  .grid-split { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .author-card { grid-template-columns: 1fr; text-align: left; }
  .author-photo img { width: 148px; height: 148px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  /* Timeline decalee a gauche */
  .timeline-track { left: 28px; margin-left: 0; }
  .step { grid-template-columns: 56px minmax(0, 1fr); gap: var(--sp-4); }
  .step-dot {
    grid-column: 1;
    justify-self: start;
    width: 50px;
    height: 50px;
    font-size: 0.97rem;
    top: calc(var(--header-h) + 14px);
  }
  .step:nth-child(odd) .step-body,
  .step:nth-child(even) .step-body { grid-column: 2; transform: translateY(20px); }
  .step.is-revealed .step-body { transform: none; }
  .step:nth-child(odd) .step-body::after,
  .step:nth-child(even) .step-body::after {
    left: -8px;
    right: auto;
    border-right: none;
    border-top: none;
    border-left: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
}
@media (max-width: 1120px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    transition: max-height var(--t-base), padding var(--t-base);
    padding: 0 var(--sp-5);
  }
  .nav.is-open {
    max-height: 74vh;
    overflow-y: auto;
    padding: var(--sp-4) var(--sp-5) var(--sp-5);
  }
  .nav-extra { display: contents; }
  .nav a {
    padding: 12px 10px;
    font-size: 1rem;
    white-space: normal;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .nav-extra a:last-child { border-bottom: none; }
  .header-actions .btn { display: none; }
}
@media (max-width: 760px) {
  :root { --header-h: 64px; }
  .grid-2,
  .grid-3,
  .glossary { grid-template-columns: 1fr; }
  .context-cols { grid-template-columns: 1fr; }
  .mistake { grid-template-columns: 1fr; }
  .mistake .m-bad { border-right: none; border-bottom: 1px solid var(--line); }
  .pullquote { padding: var(--sp-5) var(--sp-5) var(--sp-5) var(--sp-6); }
  .pullquote::before {
    font-size: 8rem;
    top: -20px;
    left: -4px;
  }
  .footer-grid { grid-template-columns: 1fr; }
  .lesson-list > li { padding: var(--sp-5) var(--sp-4) var(--sp-4) 58px; }
  .lesson-list > li::before { left: 16px; top: 22px; }
}
@media (max-width: 520px) {
  .wrap,
  .wrap-narrow { padding-inline: var(--sp-4); }
  .stat-strip { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .btn-row { flex-direction: column; align-items: stretch; }
  .cta-final .btn-row { align-items: stretch; }
  .timeline-track { left: 19px; }
  .step { grid-template-columns: 40px minmax(0, 1fr); gap: 14px; }
  .step-dot {
    width: 40px;
    height: 40px;
    font-size: 0.86rem;
    border-width: 2px;
  }
  .step-body { padding: var(--sp-4); }
  .step-body::after { display: none; }
  .byline { flex-direction: row; padding: 10px 14px 10px 10px; }
  .polaroid { padding: 9px 9px 40px; }
  .to-top {
    right: 14px;
    bottom: 14px;
    width: 44px;
    height: 44px;
  }
  .author-links a { width: 100%; justify-content: center; }
}

/* --------------------------------------------------------------------------
   25. Mouvement reduit
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal,
  .reveal-left,
  .reveal-right,
  .step-body,
  .stagger > * { opacity: 1 !important; transform: none !important; }
  .polaroid,
  .polaroid.tilt-left { transform: none; }
}

/* --------------------------------------------------------------------------
   26. Impression
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .to-top,
  .nav-toggle,
  .cta-final,
  .checklist-bar,
  .gloss-filter,
  .read-progress { display: none !important; }
  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }
  .step-body,
  .card,
  .faq-item,
  .author-card,
  .table-wrap {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }
  .faq-a { max-height: none !important; padding: 0 0 12px !important; }
  .polaroid { transform: none; box-shadow: none; }
  a { color: #000; text-decoration: underline; }
  section { padding-block: 14pt; }
  .timeline-track,
  .timeline-fill { display: none; }
  .step { grid-template-columns: 1fr; }
}
/* La date de mise a jour est recalculee chaque jour : elle ne doit jamais
   se couper en fin de ligne, y compris dans un conteneur flex etroit. */
time[data-maj] { white-space: nowrap; }