/* ============================================================
   KOGENTO — feuille de style partagée (landing + pages)
   Design tokens + base de lisibilité (WCAG AA)
   ============================================================ */

/* ---------- Polices auto-hébergées (aucune requête vers un tiers) ---------- */
@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(fonts/geist-mono.woff2) format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(fonts/inter.woff2) format("woff2");
}
@font-face {
  font-family: "Playfair Display";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(fonts/playfair-display.woff2) format("woff2");
}

:root {
  --bg-base: #0a0a0a;
  --bg-elevated: #141414;
  --bg-elevated-2: #1c1c1c;
  --bg-elevated-3: #242424;

  --border-subtle: #2a2a2a;
  --border-default: #3a3a3a;
  --border-strong: #525252;

  --text-primary: #f5f0e6;     /* ~17:1  */
  --text-secondary: #b4aea5;   /* ~8.5:1 */
  --text-tertiary: #938d85;    /* ~5.2:1 — AA pour texte normal */
  --text-disabled: #5c574f;

  --gold-primary: #c6a35d;
  --gold-bright: #d8bd76;
  --gold-muted: #8a7340;
  --gold-shadow: #5c4d2a;

  --status-success: #7da06a;
  --status-warning: #c8a06e;
  --status-danger: #b9695a;

  --font-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", "JetBrains Mono", "SF Mono", ui-monospace, monospace;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-full: 9999px;

  --motion-fast: 130ms;
  --motion-base: 220ms;
  --motion-slow: 700ms;
  --easing: cubic-bezier(0.4, 0, 0.2, 1);

  --max-width: 1180px;
  --measure-md: 780px;   /* largeur de lecture — sous-section */
  --measure-lg: 820px;   /* largeur de lecture — carte de prose */
  --pad: 40px;
}

* { box-sizing: border-box; }

html, body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
::selection { background: var(--gold-shadow); color: var(--text-primary); }

/* Indicateur de focus clavier — cohérent sur toute surface interactive */
:focus-visible {
  outline: 2px solid var(--gold-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------- Typographie ---------- */
h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.625rem, 5.6vw, 4.25rem); line-height: 1.07;
  letter-spacing: -0.022em; margin: 0;
}
h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.875rem, 3.8vw, 2.75rem); line-height: 1.16;
  letter-spacing: -0.018em; margin: 0;
}
h3 {
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.4375rem; line-height: 1.3; letter-spacing: -0.012em; margin: 0;
}
h4 { font-family: var(--font-sans); font-weight: 600; font-size: 1.125rem; line-height: 1.45; margin: 0; }
p { margin: 0; }
strong { font-weight: 700; }

.lede { font-size: clamp(1.0625rem, 1.4vw, 1.25rem); line-height: 1.6; color: var(--text-secondary); font-weight: 400; }
.body-sm { font-size: 0.875rem; line-height: 1.6; color: var(--text-secondary); }
.mono { font-family: var(--font-mono); font-feature-settings: "tnum"; }
em { font-style: italic; color: var(--text-secondary); }

.caption {
  font-family: var(--font-mono); font-weight: 400; font-size: 0.75rem; line-height: 1.4;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-tertiary);
}
.section-number {
  font-family: var(--font-mono); font-size: 0.75rem; line-height: 1.4;
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--gold-primary); margin-bottom: 14px;
}
.editorial-rule { display: block; width: 64px; height: 2px; background: var(--gold-shadow); border: 0; margin: 18px 0 26px; }
.editorial-rule--center { margin-left: auto; margin-right: auto; }

/* ---------- Utilitaires ---------- */
.text-accent { color: var(--gold-primary); font-style: normal; }
.measure-md { max-width: var(--measure-md); }
.measure-lg { max-width: var(--measure-lg); }
.subsection { margin-top: 36px; max-width: var(--measure-md); }
.subsection > p { color: var(--text-secondary); margin-top: 10px; }
.card-note {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border-subtle);
  color: var(--gold-primary); font-style: italic;
}
.card-note--muted { color: var(--text-tertiary); font-style: normal; font-size: 0.875rem; }
.card-note--muted a { color: var(--gold-primary); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Live dot ---------- */
.live-dot {
  display: inline-block; width: 7px; height: 7px; border-radius: var(--radius-full);
  background: var(--gold-primary); animation: pulse 2.4s ease-in-out infinite; flex: none;
}
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:0.35;} }
@media (prefers-reduced-motion: reduce) {
  .live-dot { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Layout ---------- */
.shell { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--pad); }
section { padding: 100px 0; position: relative; }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-alt { background: var(--bg-elevated); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(10,10,10,0.86);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand__mark {
  width: 32px; height: 32px; border-radius: var(--radius-sm);
  background: var(--bg-elevated-2); border: 1px solid var(--gold-shadow);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.125rem; color: var(--gold-primary);
}
.brand__name { font-family: var(--font-display); font-weight: 600; font-size: 1.3125rem; letter-spacing: -0.01em; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__link { font-size: 0.9375rem; color: var(--text-secondary); transition: color var(--motion-fast) var(--easing); }
.nav__link:hover { color: var(--text-primary); }
.nav__toggle { display: none; background: none; border: 0; color: var(--text-primary); cursor: pointer; padding: 8px; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: 44px; padding: 0 24px; border-radius: var(--radius-sm);
  font-family: var(--font-sans); font-weight: 600; font-size: 0.9375rem; line-height: 1;
  cursor: pointer; border: 1px solid transparent; background: transparent;
  color: var(--text-primary); transition: background var(--motion-fast) var(--easing),
    border-color var(--motion-fast) var(--easing), color var(--motion-fast) var(--easing);
  white-space: nowrap;
}
.btn--lg { height: 52px; padding: 0 30px; font-size: 1rem; }
.btn--sm { height: 40px; padding: 0 16px; font-size: 0.875rem; }
.btn--primary { background: var(--gold-primary); color: var(--bg-base); }
.btn--primary:hover { background: var(--gold-bright); }
.btn--secondary { border-color: var(--border-default); color: var(--text-primary); }
.btn--secondary:hover { background: var(--bg-elevated-2); border-color: var(--border-strong); }
.btn--ghost { color: var(--text-secondary); }
.btn--ghost:hover { color: var(--text-primary); }
.btn__arrow { transition: transform var(--motion-fast) var(--easing); }
.btn:hover .btn__arrow { transform: translateX(3px); }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* ---------- Hero (landing) ---------- */
.hero { padding: 84px 0 116px; position: relative; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; top: -38%; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 940px; height: 620px;
  background: radial-gradient(ellipse at center, rgba(198,163,93,0.09) 0%, transparent 62%);
  pointer-events: none; z-index: 0;
}
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 56px; align-items: center; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px; padding: 7px 15px;
  background: var(--bg-elevated); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--text-secondary); margin-bottom: 30px;
}
.hero h1 strong { color: var(--gold-primary); }
.hero__lede { margin-top: 28px; font-size: clamp(1.0625rem, 1.5vw, 1.25rem); line-height: 1.6; color: var(--text-secondary); max-width: 540px; }
.hero__ctas { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero__trust { margin-top: 34px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; font-size: 0.8125rem; color: var(--text-tertiary); }
.hero__trust span { display: inline-flex; align-items: center; gap: 7px; }

.hero__visual { position: relative; min-height: 440px; display: flex; align-items: center; justify-content: center; }
.mock {
  width: 100%; max-width: 460px; background: var(--bg-elevated);
  border: 1px solid var(--border-default); border-radius: var(--radius-lg);
  box-shadow: 0 30px 70px rgba(0,0,0,0.55); padding: 22px; position: relative;
}
.mock__bar { display: flex; gap: 6px; margin-bottom: 20px; }
.mock__bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); display: block; }
.mock__head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 18px; }
.mock__title { font-family: var(--font-display); font-size: 1.125rem; font-weight: 600; }
.mock__live { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-tertiary); }
.mock__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.mock__kpi { background: var(--bg-elevated-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 14px; }
.mock__kpi-label { font-size: 0.75rem; color: var(--text-tertiary); }
.mock__kpi-val { font-family: var(--font-mono); font-size: 1.375rem; color: var(--gold-primary); margin-top: 6px; }
.mock__kpi-val.alt { color: var(--text-primary); }
.mock__kpi-delta { font-size: 0.75rem; color: var(--status-success); margin-top: 4px; }
.mock__team { background: var(--bg-elevated-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 13px 14px; }
.mock__team-label { font-size: 0.75rem; color: var(--text-tertiary); margin-bottom: 10px; }
.mock__avatars { display: flex; gap: 6px; flex-wrap: wrap; }
.mono-avatar {
  width: 34px; height: 34px; border-radius: var(--radius-full);
  background: var(--bg-elevated-3); border: 1px solid var(--gold-shadow);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 600; font-size: 0.875rem; color: var(--gold-primary); flex: none;
}
.mock__float {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: var(--bg-elevated-2); border: 1px solid var(--border-default);
  border-radius: var(--radius-md); padding: 10px 13px;
  box-shadow: 0 14px 34px rgba(0,0,0,0.5); font-size: 0.8125rem;
}
.mock__float--a { top: 8px; right: -18px; }
.mock__float--b { bottom: 18px; left: -26px; }
.mock__float strong { color: var(--text-primary); }
.mock__float span { color: var(--text-tertiary); }

/* ---------- Cartes génériques ---------- */
.card { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 28px; }
.card--gold-top { border-top: 2px solid var(--gold-shadow); }
.card--prose { max-width: var(--measure-lg); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--text-secondary); }

/* ---------- 01 Problème ---------- */
.problem-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.problem-card { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 28px; }
.problem-card__num { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--gold-primary); margin-bottom: 14px; }
.problem-card h3 { margin-bottom: 10px; }
.problem-card p { color: var(--text-secondary); }

/* ---------- 02 Versus ---------- */
.versus { border: 1px solid var(--border-subtle); border-radius: var(--radius-md); overflow: hidden; }
.versus__row { display: grid; grid-template-columns: 1.1fr 1fr 1fr 1.25fr; }
.versus__row + .versus__row { border-top: 1px solid var(--border-subtle); }
.versus__cell { padding: 18px 20px; font-size: 0.875rem; color: var(--text-secondary); }
.versus__row--head .versus__cell { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-tertiary); background: var(--bg-elevated); }
.versus__cell--label { color: var(--text-primary); font-weight: 600; font-family: var(--font-sans); }
.versus__cell--k { background: var(--bg-elevated-2); color: var(--text-primary); }
.versus__row--head .versus__cell--k { color: var(--gold-primary); background: var(--bg-elevated-2); box-shadow: inset 0 2px 0 var(--gold-shadow); }

/* ---------- 03 Équipe ---------- */
.otto {
  display: flex; gap: 20px; align-items: flex-start; background: var(--bg-elevated);
  border: 1px solid var(--border-default); border-top: 2px solid var(--gold-shadow);
  border-radius: var(--radius-md); padding: 26px; margin-bottom: 16px;
}
.otto__avatar {
  width: 56px; height: 56px; border-radius: var(--radius-full);
  background: var(--bg-elevated-3); border: 1px solid var(--gold-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.375rem; color: var(--gold-primary); flex: none;
}
.otto__role { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); }
.otto__name { font-family: var(--font-display); font-size: 1.375rem; font-weight: 600; margin: 2px 0 6px; }
.otto__desc { color: var(--text-secondary); }
.agents { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; margin-top: 16px; }
.agent { display: flex; gap: 15px; align-items: flex-start; background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 20px; }
.agent__name { font-family: var(--font-sans); font-weight: 700; font-size: 1rem; line-height: 1.3; letter-spacing: 0; }
.agent__poste { font-size: 0.8125rem; color: var(--gold-primary); margin: 1px 0 7px; }
.agent__desc { font-size: 0.875rem; color: var(--text-secondary); }
.coord { margin-top: 40px; }
.coord__title { font-family: var(--font-mono); font-size: 0.8125rem; font-weight: 400; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); margin-bottom: 18px; }
.coord__list { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.coord__item { background: var(--bg-elevated-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 20px; }
.coord__item h4 { margin-bottom: 8px; }
.coord__item h4 em { color: var(--gold-primary); font-style: normal; font-family: var(--font-mono); font-size: 0.75rem; }
.coord__item p { font-size: 0.875rem; color: var(--text-secondary); }

/* ---------- 04 Modules ---------- */
.modules { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; align-items: start; }
.module { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-top: 2px solid var(--gold-shadow); border-radius: var(--radius-md); padding: 26px; }
.module__head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.module__name { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; line-height: 1.25; letter-spacing: -0.012em; }
.module__agent { font-size: 0.8125rem; color: var(--text-tertiary); }
.module__out { color: var(--gold-primary); font-weight: 600; margin: 12px 0 16px; }
.module__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.module__list li { position: relative; padding-left: 20px; font-size: 0.875rem; color: var(--text-secondary); }
.module__list li::before { content: '·'; position: absolute; left: 6px; color: var(--gold-primary); font-weight: 700; }
.module__meta { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border-subtle); font-size: 0.8125rem; color: var(--text-tertiary); }
.module__meta b { color: var(--text-secondary); font-weight: 600; }
.module__meta span { display: block; margin-top: 6px; }
.module__details { margin-top: 6px; }
.module__more {
  list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--gold-primary); padding: 6px 0;
}
.module__more::-webkit-details-marker { display: none; }
.module__more::after {
  content: '+'; font-family: var(--font-sans); font-size: 1.05rem; line-height: 1;
  transition: transform var(--motion-base) var(--easing);
}
.module__details[open] .module__more { margin-bottom: 6px; }
.module__details[open] .module__more::after { transform: rotate(45deg); }

/* ---------- 05 Simulateur ---------- */
.sim { background: var(--bg-elevated); border: 1px solid var(--border-default); border-radius: var(--radius-lg); overflow: visible; display: grid; grid-template-columns: 1.15fr 0.85fr; }
.sim__inputs { padding: 34px; border-right: 1px solid var(--border-subtle); border-radius: var(--radius-lg) 0 0 var(--radius-lg); }
.sim__step { margin-bottom: 26px; }
.sim__step:last-child { margin-bottom: 0; }
.sim__label { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); margin-bottom: 12px; }
.sim__choices { display: flex; gap: 8px; flex-wrap: wrap; }
.sim__choice {
  padding: 9px 15px; border: 1px solid var(--border-default); border-radius: var(--radius-sm);
  background: transparent; color: var(--text-secondary); font-family: var(--font-sans);
  font-size: 0.875rem; font-weight: 500; cursor: pointer; transition: background var(--motion-fast) var(--easing),
    border-color var(--motion-fast) var(--easing), color var(--motion-fast) var(--easing);
}
.sim__choice:hover { border-color: var(--border-strong); color: var(--text-primary); }
.sim__choice.active { background: var(--gold-primary); border-color: var(--gold-primary); color: var(--bg-base); font-weight: 600; }
.sim__module { border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); margin-bottom: 8px; overflow: hidden; }
.sim__module-head {
  display: flex; align-items: center; gap: 12px; width: 100%; padding: 12px 14px;
  background: none; border: 0; margin: 0; cursor: pointer; text-align: left;
  font-family: var(--font-sans); color: inherit;
}
.sim__module-head:hover { background: var(--bg-elevated-2); }
.sim__check {
  width: 20px; height: 20px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong);
  flex: none; display: flex; align-items: center; justify-content: center; transition: background var(--motion-fast) var(--easing), border-color var(--motion-fast) var(--easing);
}
.sim__module.on .sim__check { background: var(--gold-primary); border-color: var(--gold-primary); }
.sim__check svg { opacity: 0; }
.sim__module.on .sim__check svg { opacity: 1; }
.sim__module-name { font-size: 0.875rem; font-weight: 500; color: var(--text-secondary); flex: 1; }
.sim__module.on .sim__module-name { color: var(--text-primary); }
.sim__module-body { display: none; padding: 4px 14px 16px; }
.sim__module.on .sim__module-body { display: block; }
.sim__slider-row { display: flex; align-items: center; gap: 14px; }
.sim__range { -webkit-appearance: none; appearance: none; flex: 1; height: 4px; border-radius: 2px; background: var(--border-default); outline: none; }
.sim__range::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--gold-primary); cursor: pointer; border: 2px solid var(--bg-elevated); }
.sim__range::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--gold-primary); cursor: pointer; border: 2px solid var(--bg-elevated); }
.sim__slider-val { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--text-secondary); white-space: nowrap; }
.sim__slider-val b { color: var(--gold-primary); font-size: 0.9375rem; }
.sim__results { padding: 34px; background: var(--bg-elevated-2); display: flex; flex-direction: column; border-radius: 0 var(--radius-lg) var(--radius-lg) 0; position: sticky; top: 86px; align-self: start; }
.sim__result { margin-bottom: 22px; }
.sim__result-val { font-family: var(--font-mono); font-size: 2.375rem; line-height: 1; color: var(--gold-primary); }
.sim__result-val.sm { font-size: 1.625rem; color: var(--text-primary); }
.sim__result-label { font-size: 0.8125rem; color: var(--text-tertiary); margin-top: 7px; }
.sim__cruise { font-size: 0.8125rem; color: var(--text-tertiary); margin-top: 4px; }
.sim__badge {
  display: none; align-items: center; gap: 8px; align-self: flex-start;
  background: var(--gold-shadow); border: 1px solid var(--gold-muted); color: var(--gold-bright);
  padding: 7px 13px; border-radius: var(--radius-sm); font-size: 0.8125rem; font-weight: 600; margin-bottom: 22px;
}
.sim__badge.show { display: inline-flex; }
.sim__cta { margin-top: auto; }
.sim__cta .btn { width: 100%; }
.sim__cta-note { font-size: 0.75rem; color: var(--text-tertiary); margin-top: 10px; text-align: center; }
.sim__sources { margin-top: 18px; }
.sim__sources summary { font-size: 0.8125rem; color: var(--text-tertiary); cursor: pointer; list-style: none; }
.sim__sources summary::-webkit-details-marker { display: none; }
.sim__sources summary::before { content: '▸ '; color: var(--gold-primary); }
.sim__sources[open] summary::before { content: '▾ '; }
.sim__sources p { font-size: 0.8125rem; color: var(--text-tertiary); margin-top: 10px; line-height: 1.6; }

/* ---------- 06 Différenciateurs ---------- */
.diff-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.diff-card { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 28px; }
.diff-card__num { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--gold-primary); margin-bottom: 12px; }
.diff-card h3 { margin-bottom: 10px; }
.diff-card p { color: var(--text-secondary); }
.diff-card__quote { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border-subtle); font-style: italic; color: var(--gold-primary); font-size: 0.875rem; }

/* ---------- 07 Sous le capot ---------- */
.layers-group + .layers-group { margin-top: 36px; }
.layers-group__title { font-family: var(--font-display); font-size: 1.375rem; font-weight: 600; margin-bottom: 18px; }
.layers { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.layer { display: flex; gap: 13px; background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 18px 20px; }
.layer__mark { color: var(--gold-primary); flex: none; }
.layer b { display: block; margin-bottom: 3px; }
.layer span { font-size: 0.875rem; color: var(--text-secondary); }
.layers-closer { margin-top: 28px; font-size: 1rem; color: var(--text-secondary); max-width: 760px; }
.layers-closer strong { color: var(--text-primary); }

/* ---------- 08 Étapes ---------- */
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.step { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 28px; }
.step__num {
  width: 38px; height: 38px; border-radius: var(--radius-full);
  border: 1px solid var(--gold-primary); color: var(--gold-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.125rem; margin-bottom: 16px;
}
.step h3 { margin-bottom: 10px; }
.step p { color: var(--text-secondary); }
.step__role { margin-top: 14px; font-size: 0.875rem; color: var(--text-secondary); }
.step__role b { color: var(--gold-primary); font-weight: 600; }
.step__time { margin-top: 14px; font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.06em; }
.steps-closer { margin-top: 28px; text-align: center; color: var(--text-secondary); max-width: 680px; margin-left: auto; margin-right: auto; }
.steps-closer strong { color: var(--text-primary); }

/* ---------- 09 À qui ça s'adresse ---------- */
.fit { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.fit-card { background: var(--bg-elevated); border: 1px solid var(--border-default); border-top: 2px solid var(--gold-shadow); border-radius: var(--radius-md); padding: 28px; }
.fit-card h3 { margin-bottom: 12px; }
.fit-card p { color: var(--text-secondary); }
.fit-card__benefit { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border-subtle); color: var(--gold-primary); font-style: italic; }
.fit-not { margin-top: 22px; background: var(--bg-elevated-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 26px 28px; }
.fit-not__title { font-family: var(--font-mono); font-size: 0.8125rem; font-weight: 400; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); margin-bottom: 16px; }
.fit-not ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; }
.fit-not li { font-size: 0.875rem; color: var(--text-secondary); padding-left: 22px; position: relative; }
.fit-not li::before { content: '✕'; position: absolute; left: 0; color: var(--status-danger); font-size: 0.8125rem; }
.fit-not li b { color: var(--text-primary); font-weight: 600; }
.fit-closer { margin-top: 22px; text-align: center; color: var(--text-secondary); }

/* ---------- 10 Confiance — liste éditoriale ---------- */
.trust-list { margin-top: 8px; }
.trust-item {
  display: grid; grid-template-columns: auto 1fr; gap: 4px 22px;
  padding: 28px 0; border-top: 1px solid var(--border-subtle); align-items: start;
}
.trust-item:last-child { border-bottom: 1px solid var(--border-subtle); }
.trust-item__mark { grid-row: span 2; color: var(--gold-primary); padding-top: 3px; }
.trust-item h3 { font-family: var(--font-sans); font-size: 1.0625rem; font-weight: 600; letter-spacing: 0; }
.trust-item p { color: var(--text-secondary); max-width: 62ch; }
.trust-closer { margin-top: 26px; font-size: 0.875rem; color: var(--text-tertiary); }
.trust-closer a { color: var(--gold-primary); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 11 FAQ ---------- */
.faq { max-width: 820px; }
.faq-item { border-bottom: 1px solid var(--border-subtle); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 22px 0;
  display: flex; justify-content: space-between; gap: 20px; align-items: center;
  font-family: var(--font-display); font-size: 1.1875rem; font-weight: 600; color: var(--text-primary);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-family: var(--font-sans); color: var(--gold-primary); font-size: 1.5rem; flex: none; transition: transform var(--motion-base) var(--easing); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { color: var(--text-secondary); padding-bottom: 22px; max-width: 680px; }

/* ---------- 12 CTA + formulaire ---------- */
.cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.cta-list { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-direction: column; gap: 14px; }
.cta-list li { display: flex; gap: 11px; align-items: flex-start; color: var(--text-secondary); }
.cta-list svg { color: var(--gold-primary); flex: none; margin-top: 3px; }
.form { background: var(--bg-elevated); border: 1px solid var(--border-default); border-radius: var(--radius-lg); padding: 30px; }
.form__progress { display: flex; justify-content: space-between; align-items: center; gap: 14px; margin-bottom: 22px; }
.form__progress span:first-child { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-tertiary); }
.form__bar { flex: 1; height: 3px; background: var(--border-default); border-radius: 2px; overflow: hidden; max-width: 140px; }
.form__bar i { display: block; height: 100%; width: 100%; background: var(--gold-primary); transform-origin: left; transform: scaleX(0.3333); transition: transform var(--motion-base) var(--easing); }
.form__step { display: none; }
.form__step.active { display: block; }
.form__field { margin-bottom: 16px; }
.form__field label, .form__legend { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 7px; }
.form__field label em, .form__legend em { color: var(--text-tertiary); font-weight: 400; }
.form__fieldset { border: 0; padding: 0; margin: 0 0 16px; }
.form__input, .form__select, .form__textarea {
  width: 100%; background: var(--bg-elevated-2); border: 1px solid var(--border-default);
  border-radius: var(--radius-sm); padding: 11px 13px; color: var(--text-primary);
  font-family: var(--font-sans); font-size: 0.9375rem;
}
.form__input:focus, .form__select:focus, .form__textarea:focus { border-color: var(--gold-primary); }
.form__textarea { resize: vertical; min-height: 70px; }
.form__opts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.form__opt {
  position: relative; display: flex; align-items: center; gap: 9px; padding: 11px 12px;
  border: 1px solid var(--border-default); border-radius: var(--radius-sm);
  cursor: pointer; font-size: 0.875rem; color: var(--text-secondary);
  transition: border-color var(--motion-fast) var(--easing), background var(--motion-fast) var(--easing), color var(--motion-fast) var(--easing);
}
.form__opt:hover { border-color: var(--border-strong); }
.form__opt input {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.form__opt:has(input:checked) { border-color: var(--gold-primary); background: var(--bg-elevated-2); color: var(--text-primary); }
.form__opt:has(input:focus-visible) { outline: 2px solid var(--gold-primary); outline-offset: 2px; }
.form__opt-box { width: 16px; height: 16px; border-radius: 3px; border: 1px solid var(--border-strong); flex: none; transition: background var(--motion-fast) var(--easing), border-color var(--motion-fast) var(--easing); }
.form__opt:has(input[type="radio"]) .form__opt-box { border-radius: var(--radius-full); }
.form__opt:has(input:checked) .form__opt-box { background: var(--gold-primary); border-color: var(--gold-primary); }
.form__actions { display: flex; justify-content: space-between; gap: 12px; margin-top: 22px; }
.form__note { font-size: 0.75rem; color: var(--text-tertiary); margin-top: 16px; line-height: 1.55; }
.form__error { font-size: 0.75rem; color: var(--status-danger); margin-top: 7px; }
.form__field--error .form__input,
.form__field--error .form__select,
.form__field--error .form__textarea { border-color: var(--status-danger); }
.form__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
#formError:not(:empty) {
  margin-top: 16px; padding: 11px 13px;
  border: 1px solid var(--status-danger); border-radius: var(--radius-sm);
  font-size: 0.8125rem; color: var(--status-danger); line-height: 1.5;
}
.form__success { display: none; text-align: center; padding: 30px 10px; }
.form__success.show { display: block; }
.form__success-icon {
  width: 56px; height: 56px; border-radius: var(--radius-full); margin: 0 auto 18px;
  background: var(--gold-shadow); border: 1px solid var(--gold-primary); color: var(--gold-bright);
  display: flex; align-items: center; justify-content: center;
}
.form__success h3 { margin-bottom: 10px; }
.form__success p { color: var(--text-secondary); }
.form__success-next {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border-subtle);
  font-size: 0.875rem; color: var(--text-tertiary); line-height: 1.6; text-align: left;
}

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border-subtle); padding: 60px 0 36px; background: var(--bg-elevated); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 36px; }
.footer__tagline { color: var(--text-tertiary); font-size: 0.875rem; margin-top: 14px; max-width: 280px; }
.footer__col-title { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); margin-bottom: 14px; }
.footer__link { display: block; font-size: 0.875rem; color: var(--text-secondary); padding: 5px 0; }
.footer__link:hover { color: var(--text-primary); }
.footer__bottom { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--border-subtle); display: flex; justify-content: space-between; gap: 14px; font-size: 0.8125rem; color: var(--text-tertiary); flex-wrap: wrap; }

/* ============================================================
   PAGES SECONDAIRES — composants
   ============================================================ */
.page-header { padding: 64px 0 56px; border-bottom: 1px solid var(--border-subtle); position: relative; overflow: hidden; }
.page-header::before {
  content: ''; position: absolute; top: -55%; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 900px; height: 520px;
  background: radial-gradient(ellipse at center, rgba(198,163,93,0.07) 0%, transparent 62%); pointer-events: none;
}
.page-header .shell { position: relative; }
.page-header h1 { margin-top: 14px; max-width: 780px; }
.page-header .lede { margin-top: 22px; max-width: 700px; }
.page-back { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-tertiary); }
.page-back:hover { color: var(--gold-primary); }

.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }

.prose { max-width: 720px; }
.prose p { color: var(--text-secondary); margin-bottom: 14px; }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--text-primary); }
.prose h2 { font-family: var(--font-display); font-weight: 600; font-size: 1.5rem; line-height: 1.3; letter-spacing: -0.012em; margin: 42px 0 14px; }
.prose h2:first-child { margin-top: 0; }
.prose a { color: var(--gold-primary); text-decoration: underline; text-underline-offset: 3px; }
.prose ul { margin: 0 0 14px; padding-left: 20px; }
.prose li { color: var(--text-secondary); margin-bottom: 6px; }
.prose .legal-meta { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--border-subtle); font-size: 0.875rem; color: var(--text-tertiary); }

/* niveaux de validation */
.levels { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.level { display: flex; gap: 16px; background: var(--bg-elevated-2); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 18px 20px; }
.level__n { font-family: var(--font-mono); font-size: 0.75rem; color: var(--gold-primary); flex: none; padding-top: 3px; white-space: nowrap; }
.level b { display: block; margin-bottom: 3px; }
.level span { font-size: 0.875rem; color: var(--text-secondary); }

/* phases détaillées */
.phase { background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-top: 2px solid var(--gold-shadow); border-radius: var(--radius-md); padding: 26px 28px; }
.phase + .phase { margin-top: 16px; }
.phase__head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.phase__name { font-family: var(--font-display); font-size: 1.3125rem; font-weight: 600; }
.phase__time { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-tertiary); }
.phase p { color: var(--text-secondary); }
.phase__deliver { margin-top: 12px; font-size: 0.875rem; color: var(--gold-primary); font-style: italic; }

/* liste implication client */
.expect { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 13px; }
.expect li { padding-left: 24px; position: relative; color: var(--text-secondary); }
.expect li::before { content: '—'; position: absolute; left: 0; color: var(--gold-primary); }
.expect li b { color: var(--text-primary); font-weight: 600; }

/* bandeau CTA pages */
.cta-band { background: var(--bg-elevated); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); text-align: center; }
.cta-band h2 { max-width: 660px; margin: 0 auto 12px; }
.cta-band p { color: var(--text-secondary); margin-bottom: 26px; }

/* ---------- Responsive ---------- */
@media (max-width: 1040px) {
  .coord__list, .steps, .grid-3 { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 920px) {
  :root { --pad: 24px; }
  section { padding: 72px 0; }
  .hero { padding: 56px 0 80px; }
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero__visual { min-height: auto; }
  .nav__links { display: none; }
  .nav__toggle { display: block; }
  .nav__links.open { display: flex; position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--bg-base); border-bottom: 1px solid var(--border-subtle); padding: 8px 24px 16px; }
  .nav__links.open .nav__link { padding: 12px 0; border-bottom: 1px solid var(--border-subtle); }
  .sim { grid-template-columns: 1fr; }
  .sim__inputs { border-right: 0; border-bottom: 1px solid var(--border-subtle); border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .sim__results { border-radius: 0 0 var(--radius-lg) var(--radius-lg); position: static; align-self: stretch; }
  .cta-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .versus { overflow-x: auto; }
  .versus__row { grid-template-columns: 130px 130px 130px 170px; min-width: 560px; }
}
@media (max-width: 720px) {
  .problem-grid, .modules, .diff-grid, .agents, .layers, .fit, .grid-2,
  .coord__list, .steps, .grid-3 { grid-template-columns: 1fr; }
  .fit-not ul { grid-template-columns: 1fr; }
}
@media (max-width: 540px) {
  .hero__ctas .btn {
    width: 100%;
    height: auto;
    min-height: 52px;
    padding: 14px 18px;
    white-space: normal;
    line-height: 1.2;
    text-align: center;
  }
  .form__opts, .mock__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .mock__float--a { right: 0; }
  .mock__float--b { left: 0; }
}

/* ============================================================
   ANIMATIONS & INTERACTIONS
   ============================================================ */

/* Révélation au scroll */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(22px);
            transition: opacity var(--motion-slow) var(--easing), transform var(--motion-slow) var(--easing); }
  .reveal--in { opacity: 1; transform: none; }
}

/* Barre de progression de lecture */
.reading-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--gold-muted), var(--gold-bright));
  transform: scaleX(0); transform-origin: 0 50%;
  z-index: 70; will-change: transform; pointer-events: none;
}

/* Navigation — section active */
.nav__link--active { color: var(--gold-primary); }

/* Cartes réactives au survol */
.problem-card:not(.reveal), .module:not(.reveal), .diff-card:not(.reveal),
.agent:not(.reveal), .trust-item:not(.reveal), .coord__item:not(.reveal),
.fit-card:not(.reveal), .layer:not(.reveal), .step:not(.reveal),
.grid-3 .card:not(.reveal) {
  transition: transform var(--motion-base) var(--easing), border-color var(--motion-base) var(--easing), box-shadow var(--motion-base) var(--easing);
}
.problem-card:hover, .module:hover, .diff-card:hover, .agent:hover,
.coord__item:hover, .fit-card:hover, .layer:hover, .step:hover,
.grid-3 .card:hover {
  transform: translateY(-3px);
  border-color: var(--gold-shadow);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.45);
}

/* Micro-mouvement du hero */
@media (prefers-reduced-motion: no-preference) {
  @keyframes kg-float-a { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
  @keyframes kg-float-b { 0%,100% { transform: translateY(0); } 50% { transform: translateY(10px); } }
  @keyframes kg-halo {
    0%,100% { opacity: .65; transform: translateX(-50%) scale(1); }
    50%     { opacity: 1;   transform: translateX(-50%) scale(1.06); }
  }
  .mock__float--a { animation: kg-float-a 7s ease-in-out infinite; }
  .mock__float--b { animation: kg-float-b 8.5s -2s ease-in-out infinite; }
  .hero::before   { animation: kg-halo 9s ease-in-out infinite; }
}