@charset "UTF-8";
/* ==========================================================================
   YStudio — Feuille de style principale
   --------------------------------------------------------------------------
   01. Variables
   02. Base & reset
   03. Typographie & utilitaires
   04. Boutons & liens
   05. En-tête & navigation
   06. Hero
   07. Le constat
   08. Études & chiffres (graphiques SVG)
   09. Portfolio vidéo
   10. Avant / Après
   11. Services & méthode
   12. À propos
   13. Contact & formulaire
   14. Pied de page
   15. Lecteur vidéo
   16. Pages légales & pages simples
   17. Animations
   18. Responsive
   ========================================================================== */

/* ---------------------------------------------------------------- 01. Variables */
:root {
  /* Charte */
  --c-black: #000000;
  --c-white: #FFFFFF;
  --c-gold: #C9A86A;
  --c-gold-light: #DFC79A;
  --c-gold-deep: #8A6A33;      /* doré foncé : lisible sur fond blanc */
  --c-anthracite: #1A1A1A;
  --c-error: #F09A8A;

  /* Encres (fonds sombres par défaut) */
  --t-1: #FFFFFF;
  --t-2: rgba(255, 255, 255, .72);
  --t-3: rgba(255, 255, 255, .52);
  --line: rgba(255, 255, 255, .12);
  --line-strong: rgba(255, 255, 255, .24);
  --surface: var(--c-black);

  /* Graphiques */
  --chart-base: #5E5E5E;
  --chart-video: var(--c-gold);

  /* Typographie */
  --f-title: "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  /* Mise en page */
  --container: 1240px;
  --gutter: clamp(16px, 5vw, 56px);
  --section-y: clamp(88px, 11vw, 160px);
  --header-h: 84px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
}

/* ---------------------------------------------------------------- 02. Base & reset */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 68px;
}

body {
  margin: 0;
  background: var(--c-black);
  color: var(--t-1);
  font-family: var(--f-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p, figure, dl, dd { margin: 0; }
[hidden] { display: none !important; }

:focus-visible { outline: 1px solid var(--c-gold); outline-offset: 4px; }
::selection { background: var(--c-gold); color: var(--c-black); }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 200;
  padding: 12px 18px; background: var(--c-gold); color: var(--c-black);
  font-weight: 500; transform: translateY(-200%); transition: transform .3s var(--ease);
}
.skip-link:focus { transform: none; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------------------------------------------------------------- 03. Typographie & utilitaires */
.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { position: relative; padding-block: var(--section-y); }
.section--black { background: var(--c-black); --surface: var(--c-black); }
.section--anthracite { background: var(--c-anthracite); --surface: var(--c-anthracite); }
.section--light {
  background: var(--c-white);
  color: #0A0A0A;
  --surface: var(--c-white);
  --t-1: #0A0A0A;
  --t-2: rgba(10, 10, 10, .72);
  --t-3: rgba(10, 10, 10, .56);
  --line: rgba(0, 0, 0, .1);
  --line-strong: rgba(0, 0, 0, .22);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 26px;
  font-family: var(--f-title);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--c-gold);
}
.eyebrow__num { display: inline-flex; align-items: center; gap: 14px; color: var(--t-3); letter-spacing: .12em; }
.eyebrow__num::after { content: ""; width: 40px; height: 1px; background: var(--c-gold); opacity: .7; }
.section--light .eyebrow { color: var(--c-gold-deep); }
.section--light .eyebrow__num::after { background: var(--c-gold-deep); }

.section-title {
  font-family: var(--f-title);
  font-weight: 300;
  font-size: clamp(2rem, 4.2vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -.015em;
  max-width: 20ch;
  text-wrap: balance;
}
.section-title em { font-style: italic; color: var(--c-gold); }
.section--light .section-title em { color: var(--c-gold-deep); }

.section-lead {
  margin-top: 24px;
  max-width: 56ch;
  color: var(--t-2);
  font-size: clamp(1rem, 1.15vw, 1.125rem);
  font-weight: 300;
  text-wrap: pretty;
}

.section-head { margin-bottom: clamp(48px, 6vw, 80px); }
.section-head--split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 32px 64px;
  align-items: end;
}
.section-head--split .section-lead { margin-top: 0; }

/* ---------------------------------------------------------------- 04. Boutons & liens */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 54px;
  padding: 0 30px;
  overflow: hidden;
  border: 1px solid transparent;
  font-family: var(--f-title);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: background-color .4s var(--ease), color .4s var(--ease), border-color .4s var(--ease);
}
.btn__icon { width: 16px; height: 16px; flex-shrink: 0; }

.btn--gold { background: var(--c-gold); color: var(--c-black); }
.btn--gold::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, .5) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform .9s var(--ease);
}
.btn--gold:hover { background: var(--c-gold-light); }
.btn--gold:hover::after { transform: translateX(120%); }

.btn--ghost { border-color: rgba(255, 255, 255, .4); color: var(--t-1); }
.btn--ghost:hover { border-color: var(--c-gold); color: var(--c-gold); }

.btn--block { width: 100%; }
.btn--small { min-height: 46px; padding: 0 22px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-title);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-gold);
}
.link-arrow svg { width: 18px; height: 18px; transition: transform .4s var(--ease); }
.link-arrow:hover svg { transform: translateX(6px); }
.section--light .link-arrow { color: var(--c-gold-deep); }

/* ---------------------------------------------------------------- 05. En-tête & navigation */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: height .5s var(--ease), background-color .5s, border-color .5s;
}
.header.is-scrolled {
  --header-h: 68px;
  background: rgba(0, 0, 0, .8);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--line);
}
/* Menu mobile ouvert : on retire le flou (sinon la superposition plein écran serait rognée) */
.header.is-open { background: transparent; -webkit-backdrop-filter: none; backdrop-filter: none; border-bottom-color: transparent; }

.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 32px; }

.logo { position: relative; z-index: 2; display: inline-flex; color: var(--c-white); }
.logo__svg { width: 150px; height: 24px; overflow: visible; }

.nav__list { display: flex; align-items: center; gap: clamp(16px, 2vw, 32px); }
.nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 0;
  font-family: var(--f-title);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--t-2);
  transition: color .3s;
}
.nav__link::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 2px;
  height: 1px;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .5s var(--ease);
}
.nav__link:hover, .nav__link.is-active { color: var(--c-white); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); transform-origin: left; }

.nav__link--compte { display: inline-flex; align-items: center; gap: 8px; }
.nav__link--compte svg { width: 16px; height: 16px; flex: none; color: var(--c-gold); }
.nav__link--compte::after { left: 24px; }
/* Écrans moyens : l'icône seule, pour garder l'en-tête aéré */
@media (min-width: 1181px) and (max-width: 1360px) {
  .nav__link--compte span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .nav__link--compte::after { left: 0; }
}

.nav__link--cta { padding: 11px 20px; border: 1px solid rgba(201, 168, 106, .6); color: var(--c-gold); transition: background-color .4s, color .4s; }
.nav__link--cta::after { display: none; }
.nav__link--cta:hover, .nav__link--cta.is-active { background: var(--c-gold); color: var(--c-black); }

.burger { position: relative; z-index: 2; display: none; width: 44px; height: 44px; }
.burger span {
  position: absolute; left: 10px; right: 10px; height: 1px;
  background: var(--c-white);
  transition: transform .5s var(--ease), top .5s var(--ease);
}
.burger span:first-child { top: 18px; }
.burger span:last-child { top: 26px; }
.burger[aria-expanded="true"] span:first-child { top: 22px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { top: 22px; transform: rotate(-45deg); }

/* ---------------------------------------------------------------- 06. Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  isolation: isolate;
}

.hero__media { position: absolute; inset: 0; z-index: -1; overflow: hidden; contain: paint; background: #0B0907; }

/* Scène de repli : intérieur flouté animé en « Ken Burns » */
.hero__scene {
  position: absolute;
  inset: -6%;
  background: url("assets/images/poster-video3.jpg") center / cover no-repeat;
  filter: blur(6px) brightness(.5) saturate(.9);
  will-change: transform;
  animation: kenburns 30s var(--ease-in-out) infinite alternate;
}

.hero__video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  filter: blur(3px) brightness(.5) saturate(.9);
  transform: scale(1.06); /* masque les bords adoucis par le flou */
  transition: opacity 1.8s var(--ease);
}
.hero__video.is-ready { opacity: 1; }

.hero__light {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform;
}
.hero__light--1 {
  width: 60vmax; height: 60vmax; top: -22vmax; right: -14vmax;
  background: radial-gradient(circle, rgba(201, 168, 106, .42) 0%, rgba(201, 168, 106, 0) 62%);
  animation: drift-1 20s ease-in-out infinite alternate;
}
.hero__light--2 {
  width: 44vmax; height: 44vmax; bottom: -20vmax; left: -12vmax;
  background: radial-gradient(circle, rgba(255, 236, 200, .16) 0%, rgba(255, 236, 200, 0) 60%);
  animation: drift-2 26s ease-in-out infinite alternate;
}

.hero__grain {
  position: absolute; inset: -50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: .07;
  animation: grain 1.2s steps(5) infinite;
  pointer-events: none;
}

.hero__veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, .6) 0%, rgba(0, 0, 0, .15) 38%, rgba(0, 0, 0, .9) 100%),
    radial-gradient(ellipse at 25% 55%, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, .55) 85%);
}

.hero__content { padding-top: calc(var(--header-h) + clamp(48px, 10vh, 120px)); padding-bottom: 48px; }

.hero__eyebrow { margin-bottom: 30px; }
.hero__eyebrow::before { content: ""; width: 40px; height: 1px; background: var(--c-gold); }

.hero__title {
  font-family: var(--f-title);
  font-weight: 300;
  font-size: clamp(2.5rem, 6.6vw, 6.25rem);
  line-height: 1.04;
  letter-spacing: -.025em;
}
.hero__line { display: block; }
.hero__title em { font-style: italic; color: var(--c-gold); }

.hero__subtitle {
  margin-top: 30px;
  max-width: 42ch;
  color: var(--t-2);
  font-size: clamp(1.05rem, 1.45vw, 1.3rem);
  font-weight: 300;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 44px; }

.hero__bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 40px;
}
.hero__proofs { display: flex; flex-wrap: wrap; border-top: 1px solid var(--line-strong); }
.hero__proofs li { padding: 20px 32px 0 0; }
.hero__proofs li + li { padding-left: 32px; border-left: 1px solid var(--line); }
.hero__proof-key {
  display: block;
  font-family: var(--f-title);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.hero__proof-val { display: block; margin-top: 4px; font-size: .85rem; color: var(--t-3); }

.hero__scroll {
  position: relative;
  flex-shrink: 0;
  width: 26px; height: 44px;
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 13px;
}
.hero__scroll span {
  position: absolute; top: 8px; left: 50%;
  width: 3px; height: 8px; margin-left: -1.5px;
  border-radius: 2px;
  background: var(--c-gold);
  animation: scroll-dot 2.2s var(--ease) infinite;
}

/* ---------------------------------------------------------------- 07. Le constat */
.problems__grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(48px, 7vw, 120px);
  align-items: start;
}
.problems__intro { position: sticky; top: 120px; }
.problems__intro .link-arrow { margin-top: 36px; }

.problems__list { border-top: 1px solid var(--line); }
.problem {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 20px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
.problem::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .9s var(--ease);
}
.problem:hover::after { transform: scaleX(1); }

.problem__num { padding-top: 5px; font-family: var(--f-title); font-size: .78rem; letter-spacing: .1em; color: var(--c-gold); }
.problem__body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 6px 32px; }
.problem__title { font-family: var(--f-title); font-weight: 400; font-size: 1.2rem; line-height: 1.35; }
.problem__effect { display: flex; gap: 12px; padding-top: 3px; color: var(--c-gold-light); font-size: .95rem; }
.problem__effect::before { content: "\2192"; color: var(--c-gold); }
.problem__text { grid-column: 1 / -1; max-width: 60ch; color: var(--t-3); font-size: .95rem; }

.problem--answer { border-bottom: 0; }
.problem--answer::after { display: none; }
.problem--answer .problem__num { font-size: 1.1rem; padding-top: 0; }
.problem--answer .problem__title {
  grid-column: 1 / -1;
  font-weight: 300;
  font-style: italic;
  font-size: clamp(1.35rem, 2vw, 1.7rem);
  color: var(--c-gold);
}
.problem--answer .problem__text { color: var(--t-2); }

/* ---------------------------------------------------------------- 08. Études & chiffres */
.stats__legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 28px;
  padding-bottom: 24px;
  color: var(--t-2);
  font-size: .85rem;
}
.legend-item { display: inline-flex; align-items: center; gap: 10px; }
.legend-swatch { width: 18px; height: 8px; border-radius: 0 4px 4px 0; }
.legend-swatch--base { background: var(--chart-base); }
.legend-swatch--video { background: var(--chart-video); }
.legend-note { margin-left: auto; color: var(--t-3); font-size: .8rem; }

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}
.stat { padding: 44px 36px 40px; background: var(--surface); }
.stat__value {
  font-family: var(--f-title);
  font-weight: 300;
  font-size: clamp(3rem, 5vw, 4.4rem);
  line-height: 1;
  letter-spacing: -.03em;
  white-space: nowrap;
}
.stat__label { min-height: 3.2em; margin-top: 14px; color: var(--t-2); font-family: var(--f-body); font-size: 1rem; font-weight: 400; line-height: 1.6; }

.stat__chart { width: 100%; height: auto; margin-top: 26px; overflow: visible; }
.chart-axis { stroke: var(--line-strong); stroke-width: 1; }
.chart-label { font-family: var(--f-body); font-size: 10px; letter-spacing: .04em; fill: var(--t-3); }
.chart-value { font-family: var(--f-title); font-size: 11px; font-weight: 500; fill: var(--t-2); }
.chart-value--strong { fill: var(--t-1); }
.bar--base { fill: var(--chart-base); }
.bar--video { fill: var(--chart-video); transition: fill .3s; }
.stat:hover .bar--video { fill: var(--c-gold-light); }

.stats__table { margin-top: 28px; color: var(--t-2); font-size: .9rem; }
.stats__table summary {
  display: inline-flex; align-items: center; gap: 10px;
  cursor: pointer;
  font-family: var(--f-title); font-size: .7rem; font-weight: 500; letter-spacing: .18em; text-transform: uppercase;
  color: var(--t-2);
  list-style: none;
}
.stats__table summary::-webkit-details-marker { display: none; }
.stats__table summary::before { content: "+"; color: var(--c-gold); font-size: 1rem; line-height: 1; }
.stats__table[open] summary::before { content: "\2212"; }
.stats__table table { width: 100%; margin-top: 20px; border-collapse: collapse; }
.stats__table caption { padding-bottom: 12px; text-align: left; color: var(--t-3); font-size: .8rem; }
.stats__table th, .stats__table td { padding: 12px 8px; border-bottom: 1px solid var(--line); text-align: left; font-weight: 400; }
.stats__table thead th { color: var(--t-3); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.stats__table td { font-variant-numeric: tabular-nums; }
.stats__table td:last-child { color: var(--c-gold); }

.stats__source { margin-top: 24px; color: var(--t-3); font-size: .8rem; }

/* ---------------------------------------------------------------- 09. Portfolio vidéo */
.films {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 20px;
}
.film {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
  isolation: isolate;
}
.film--featured { grid-row: 1 / span 2; aspect-ratio: auto; min-height: 100%; }

.film__poster, .film__preview {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.4s var(--ease), opacity .8s var(--ease);
}
.film__preview { opacity: 0; }
.film.is-previewing .film__preview { opacity: 1; }
.film:hover .film__poster, .film:hover .film__preview { transform: scale(1.05); }

.film::before {
  content: "";
  position: absolute; inset: 14px;
  z-index: 2;
  border: 1px solid rgba(201, 168, 106, 0);
  pointer-events: none;
  transition: border-color .6s, inset .6s var(--ease);
}
.film:hover::before, .film:focus-visible::before { inset: 18px; border-color: rgba(201, 168, 106, .55); }
.film::after {
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 40%, rgba(0, 0, 0, .82) 100%);
}

.film__play {
  position: absolute; top: 50%; left: 50%;
  z-index: 2;
  display: grid; place-items: center;
  width: 76px; height: 76px;
  border: 1px solid rgba(255, 255, 255, .6);
  border-radius: 50%;
  background: rgba(0, 0, 0, .25);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transform: translate(-50%, -50%);
  transition: transform .5s var(--ease), background-color .4s, border-color .4s, color .4s;
}
.film__play svg { width: 22px; height: 22px; margin-left: 3px; }
.film:hover .film__play, .film:focus-visible .film__play {
  background: var(--c-gold); border-color: var(--c-gold); color: var(--c-black);
  transform: translate(-50%, -50%) scale(1.08);
}
.film--featured .film__play { width: 96px; height: 96px; }

.film__meta {
  position: absolute; left: 0; right: 0; bottom: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 4px 16px;
  padding: 24px 28px;
}
.film__tag { grid-column: 1; font-family: var(--f-title); font-size: .62rem; font-weight: 500; letter-spacing: .24em; text-transform: uppercase; color: var(--c-gold); }
.film__title { grid-column: 1; font-family: var(--f-title); font-weight: 300; font-size: clamp(1.1rem, 1.6vw, 1.45rem); line-height: 1.25; }
.film--featured .film__title { font-size: clamp(1.4rem, 2.4vw, 2.2rem); }
.film__index { grid-column: 2; grid-row: 1 / span 2; color: var(--t-3); font-size: .68rem; letter-spacing: .2em; text-transform: uppercase; }

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}
.cta-band__text { font-family: var(--f-title); font-weight: 300; font-size: clamp(1.3rem, 2vw, 1.75rem); }

/* ---------------------------------------------------------------- 10. Avant / Après */
/* Balayage en 3 étapes : --a et --b = positions des deux curseurs (pilotées par script.js) */
.tri { --a: 33.333%; --b: 66.667%; --o1: 1; --o2: 1; --o3: 1; }

.tri__stage {
  position: relative;
  aspect-ratio: 1264 / 843;
  overflow: hidden;
  isolation: isolate;
  background: #0E0D0B;
  cursor: ew-resize;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.tri__stage::after { /* voile discret pour la lisibilité des légendes */
  content: "";
  position: absolute; inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(0, 0, 0, .38) 0%, rgba(0, 0, 0, 0) 22%, rgba(0, 0, 0, 0) 78%, rgba(0, 0, 0, .22) 100%);
  pointer-events: none;
}
.tri__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.tri__layer { position: absolute; inset: 0; will-change: clip-path; }
.tri__layer--2 { clip-path: inset(0 calc(100% - var(--b)) 0 0); }
.tri__layer--1 { clip-path: inset(0 calc(100% - var(--a)) 0 0); }

.tri__label {
  position: absolute; top: 18px; z-index: 2;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 13px 7px 11px;
  border: 1px solid rgba(255, 255, 255, .16);
  background: rgba(10, 10, 10, .48);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: #fff;
  font-family: var(--f-title); font-size: .6rem; font-weight: 500; letter-spacing: .2em; text-transform: uppercase; white-space: nowrap;
  pointer-events: none;
  transition: opacity .35s var(--ease);
}
.tri__label b { color: var(--c-gold); font-weight: 500; letter-spacing: .08em; }
.tri__label--1 { left: 16px; opacity: var(--o1); }
.tri__label--2 { left: calc(var(--a) + 16px); opacity: var(--o2); }
.tri__label--3 { left: calc(var(--b) + 16px); opacity: var(--o3); }

.tri__handle {
  position: absolute; top: 0; bottom: 0; z-index: 3;
  width: 44px; margin-left: -22px;
  cursor: ew-resize;
  touch-action: none;
  outline: none;
}
.tri__handle--a { left: var(--a); }
.tri__handle--b { left: var(--b); }
.tri__handle::before {
  content: "";
  position: absolute; top: 0; bottom: 0; left: 50%;
  width: 1px; margin-left: -.5px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 0 18px rgba(0, 0, 0, .5);
}
.tri__knob {
  position: absolute; left: 50%;
  display: flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  border: 1px solid rgba(201, 168, 106, .9);
  border-radius: 50%;
  background: rgba(12, 12, 12, .55);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .35);
  color: #fff;
  transform: translate(-50%, -50%);
  transition: transform .35s var(--ease), background-color .3s, color .3s;
}
.tri__handle--a .tri__knob { top: 44%; }  /* poignées décalées : jamais superposées */
.tri__handle--b .tri__knob { top: 56%; }
.tri__knob svg { width: 14px; height: 14px; }
.tri__knob svg:first-child { transform: rotate(180deg); }
.tri__handle:hover .tri__knob,
.tri__handle.is-dragging .tri__knob { background: var(--c-gold); color: var(--c-black); transform: translate(-50%, -50%) scale(1.08); }
.tri__handle:focus-visible .tri__knob { outline: 1px solid var(--c-gold); outline-offset: 5px; }
.tri.is-hint .tri__knob::after { /* invitation à manipuler, jusqu'au premier geste */
  content: "";
  position: absolute; inset: -1px;
  border: 1px solid var(--c-gold);
  border-radius: 50%;
  animation: tri-pulse 2.4s var(--ease) infinite;
}

.tri__steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 28px; }
.tri__step {
  display: grid; grid-template-columns: auto minmax(0, 1fr); align-content: start;
  gap: 4px 14px;
  padding: 0 0 6px;
  text-align: left;
  color: var(--t-2);
}
.tri__gauge { grid-column: 1 / -1; position: relative; height: 2px; margin-bottom: 18px; background: var(--line-strong); overflow: hidden; }
.tri__gauge span { position: absolute; inset: 0 auto 0 0; width: var(--w, 0%); background: var(--c-gold); }
.tri__num { grid-row: 2 / span 2; font-family: var(--f-title); font-size: 1.7rem; font-weight: 300; line-height: 1; color: var(--t-3); transition: color .35s; }
.tri__name { font-family: var(--f-title); font-size: .7rem; font-weight: 500; letter-spacing: .18em; text-transform: uppercase; color: var(--t-1); transition: color .3s; }
.tri__desc { color: var(--t-3); font-size: .86rem; line-height: 1.5; }
.tri__step:hover .tri__name { color: var(--c-gold); }
.tri__step.is-active .tri__num { color: var(--c-gold); }
.tri__step:focus-visible { outline: 1px solid var(--c-gold); outline-offset: 6px; }

.compare__hint { margin-top: 22px; color: var(--t-3); font-size: .8rem; text-align: center; }
.tri__replay {
  margin-left: 8px;
  color: var(--c-gold);
  font-size: inherit;
  text-decoration: underline; text-underline-offset: 3px;
}

@keyframes tri-pulse {
  0% { opacity: .9; transform: scale(1); }
  70%, 100% { opacity: 0; transform: scale(1.55); }
}

.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; margin-top: 64px; }
.feature { padding-top: 28px; border-top: 1px solid var(--line); }
.feature__icon { width: 40px; height: 40px; margin-bottom: 20px; color: var(--c-gold); }
.feature__title { font-family: var(--f-title); font-weight: 400; font-size: 1.1rem; }
.feature__text { margin-top: 10px; color: var(--t-2); font-size: .95rem; }

/* ---------------------------------------------------------------- 11. Services & méthode */
.services__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: stretch; }

.service {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 48px 38px 40px;
  border: 1px solid var(--line);
  background: var(--c-white);
  transition: transform .7s var(--ease), box-shadow .7s var(--ease), border-color .7s;
}
.service:hover { transform: translateY(-6px); border-color: rgba(138, 106, 51, .4); box-shadow: 0 34px 60px -34px rgba(0, 0, 0, .3); }

.service--signature {
  --t-1: #FFFFFF;
  --t-2: rgba(255, 255, 255, .72);
  --line: rgba(255, 255, 255, .14);
  background: var(--c-black);
  color: var(--c-white);
  border-color: var(--c-black);
}
.service--signature:hover { border-color: var(--c-gold); }

.service__badge {
  position: absolute; top: 0; right: 32px;
  padding: 7px 14px;
  background: var(--c-gold);
  color: var(--c-black);
  font-family: var(--f-title); font-size: .6rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase;
  transform: translateY(-50%);
}
.service__icon { width: 48px; height: 48px; color: var(--c-gold-deep); }
.service--signature .service__icon { color: var(--c-gold); }
.service__title { margin-top: 28px; font-family: var(--f-title); font-weight: 400; font-size: 1.32rem; line-height: 1.3; }
.service__text { margin-top: 14px; color: var(--t-2); font-size: .95rem; }
.service__list { display: grid; gap: 12px; margin: 28px 0 36px; padding-top: 24px; border-top: 1px solid var(--line); }
.service__list li { display: flex; align-items: flex-start; gap: 12px; font-size: .95rem; }
.service__list svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 3px; color: var(--c-gold-deep); }
.service--signature .service__list svg, .service--signature .link-arrow { color: var(--c-gold); }
.service .link-arrow { margin-top: auto; }

.process { margin-top: clamp(80px, 10vw, 130px); }
.process__title {
  display: flex; align-items: center; gap: 24px;
  margin-bottom: 56px;
  font-family: var(--f-title); font-size: .72rem; font-weight: 500; letter-spacing: .28em; text-transform: uppercase;
  color: var(--c-gold-deep);
}
.process__title::before, .process__title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.process__steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 48px; }
.step { text-align: center; }
.step__num { display: block; margin-bottom: 14px; font-family: var(--f-title); font-size: .75rem; letter-spacing: .14em; color: var(--c-gold-deep); }
.step__icon { width: 44px; height: 44px; margin: 0 auto 20px; color: var(--t-1); }
.step__title { font-family: var(--f-title); font-weight: 500; font-size: 1rem; }
.step__text { max-width: 32ch; margin: 10px auto 0; color: var(--t-2); font-size: .92rem; }

/* ---------------------------------------------------------------- 12. À propos */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(48px, 7vw, 110px);
  align-items: start;
}
.about__photo { position: relative; margin-right: 24px; }
.about__photo::before {
  content: "";
  position: absolute; inset: 24px -24px -24px 24px;
  border: 1px solid rgba(201, 168, 106, .45);
}
.about__photo img {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: #111;
  filter: grayscale(.15) contrast(1.03);
}

.about__blocks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 48px; margin-top: 48px; }
.about__block h3 {
  margin-bottom: 14px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-family: var(--f-title); font-size: .72rem; font-weight: 500; letter-spacing: .24em; text-transform: uppercase;
  color: var(--c-gold);
}
.about__block p { color: var(--t-2); font-size: .98rem; }

.about__signature { margin-top: 48px; font-family: var(--f-title); font-style: italic; font-weight: 300; font-size: 2rem; color: var(--c-gold); }
.about__signature span { margin-left: 10px; font-style: normal; font-size: .72rem; font-weight: 500; letter-spacing: .2em; text-transform: uppercase; color: var(--t-3); }

/* ---------------------------------------------------------------- 13. Contact & formulaire */
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(48px, 7vw, 110px);
  align-items: start;
}
.contact__points { display: grid; gap: 14px; margin-top: 36px; }
.contact__points li, .contact__direct li { display: flex; align-items: center; gap: 12px; }
.contact__points svg, .contact__direct svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--c-gold); }
.contact__direct { display: grid; gap: 12px; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line); color: var(--t-2); }
.contact__direct a { transition: color .3s; }
.contact__direct a:hover { color: var(--c-gold); }
.contact__direct span a { color: var(--c-white); border-bottom: 1px solid rgba(201, 168, 106, .5); }

.form { padding: clamp(24px, 4vw, 52px); border: 1px solid var(--line); background: var(--c-black); }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 28px; }

.field { position: relative; margin-bottom: 26px; }
.field__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--f-title); font-size: .66rem; font-weight: 500; letter-spacing: .2em; text-transform: uppercase;
  color: var(--t-2);
}
.field__req { color: var(--c-gold); }
.field__opt { font-family: var(--f-body); font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--t-3); }

.field__input {
  width: 100%;
  padding: 10px 0 12px;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  color: var(--t-1);
  font: inherit;
  font-size: 1rem;
  transition: border-color .3s, box-shadow .3s;
}
.field__input:focus { outline: none; border-bottom-color: var(--c-gold); box-shadow: 0 1px 0 var(--c-gold); }
.field__input::placeholder { color: var(--t-3); }
.field__input--area { min-height: 120px; resize: vertical; }
.field.has-error .field__input { border-bottom-color: var(--c-error); }

.field__error { margin-top: 6px; color: var(--c-error); font-size: .8rem; }
.field__error:empty { display: none; }
.field__help { margin-top: 10px; color: var(--t-3); font-size: .8rem; }

.dropzone { position: relative; border: 1px dashed rgba(201, 168, 106, .5); transition: border-color .3s, background-color .3s; }
.dropzone:hover, .dropzone.is-dragover { border-color: var(--c-gold); background: rgba(201, 168, 106, .06); }
.field.has-error .dropzone { border-color: var(--c-error); }
.dropzone__input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.dropzone__input:focus-visible + .dropzone__label { outline: 1px solid var(--c-gold); outline-offset: 4px; }
.dropzone__label { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 30px 20px; text-align: center; cursor: pointer; }
.dropzone__icon { width: 36px; height: 36px; margin-bottom: 6px; color: var(--c-gold); }
.dropzone__title { font-family: var(--f-title); font-size: .95rem; }
.dropzone__hint { color: var(--t-3); font-size: .85rem; }
.dropzone__browse { color: var(--c-gold); text-decoration: underline; text-underline-offset: 3px; }

.previews { display: grid; grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); gap: 10px; margin-top: 14px; }
.previews:empty { display: none; }
.preview { position: relative; aspect-ratio: 1; overflow: hidden; border: 1px solid var(--line); background: #111; }
.preview img { width: 100%; height: 100%; object-fit: cover; }
.preview__name {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  padding: 8px;
  color: var(--t-3); font-size: .65rem; text-align: center; word-break: break-all;
}
.preview__remove {
  position: absolute; top: 4px; right: 4px;
  display: grid; place-items: center;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(0, 0, 0, .75);
  color: var(--c-white);
  transition: background-color .3s, color .3s;
}
.preview__remove:hover { background: var(--c-gold); color: var(--c-black); }
.preview__remove svg { width: 12px; height: 12px; }

.field--check { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 4px 14px; align-items: start; }
.field--check label { color: var(--t-2); font-size: .85rem; }
.field--check a { color: var(--c-gold); text-decoration: underline; text-underline-offset: 3px; }
.field--check .field__error { grid-column: 2; }
.check {
  display: grid; place-items: center;
  width: 20px; height: 20px;
  margin: 2px 0 0;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: background-color .3s, border-color .3s;
}
.check:checked { border-color: var(--c-gold); background: var(--c-gold); }
.check:checked::after {
  content: "";
  width: 10px; height: 6px;
  border-bottom: 1.5px solid var(--c-black);
  border-left: 1.5px solid var(--c-black);
  transform: translateY(-1px) rotate(-45deg);
}
.field.has-error .check { border-color: var(--c-error); }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form__submit { margin-top: 8px; }
.form__submit.is-loading { opacity: .75; pointer-events: none; }
.form__progress { height: 2px; margin-top: 16px; overflow: hidden; background: var(--line); }
.form__progress-bar { display: block; width: 0; height: 100%; background: var(--c-gold); transition: width .2s linear; }
.form__status { margin-top: 18px; font-size: .95rem; }
.form__status:empty { display: none; }
.form__status.is-success { color: var(--c-gold-light); }
.form__status a { color: var(--c-white); border-bottom: 1px solid var(--c-gold); }
.form__status a:hover { color: var(--c-gold); }
.form__status.is-error { color: var(--c-error); }
.form__legal { margin-top: 18px; color: var(--t-3); font-size: .75rem; }

/* ---------------------------------------------------------------- 14. Pied de page */
.footer { padding: 80px 0 32px; border-top: 1px solid var(--line); background: var(--c-black); }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 56px; }
.footer__brand p { max-width: 36ch; margin-top: 20px; color: var(--t-3); font-size: .9rem; }
.footer__nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; align-content: start; }
.footer__nav a, .footer__legal a { color: var(--t-2); font-size: .88rem; transition: color .3s; }
.footer__nav a:hover, .footer__legal a:hover { color: var(--c-gold); }
.footer__cta p { margin-bottom: 18px; font-family: var(--f-title); font-weight: 300; font-size: 1.3rem; }
.footer__bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  color: var(--t-3); font-size: .8rem;
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 24px; }
.footer__legal a { font-size: .8rem; }

/* ---------------------------------------------------------------- 15. Lecteur vidéo */
.player {
  width: min(1200px, 92vw, 134vh);
  max-width: none;
  max-height: none;
  padding: 0;
  overflow: visible;
  border: 0;
  background: transparent;
  color: var(--c-white);
}
.player::backdrop { background: rgba(0, 0, 0, .9); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.player[open] { animation: player-in .7s var(--ease); }

.player__frame { position: relative; }
.player__close {
  position: absolute; top: -54px; right: -6px;
  display: grid; place-items: center;
  width: 44px; height: 44px;
  transition: color .3s, transform .5s var(--ease);
}
.player__close svg { width: 24px; height: 24px; }
.player__close:hover { color: var(--c-gold); transform: rotate(90deg); }

.player__stage { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #000; }

/* Plein écran : la vidéo et les commandes personnalisées restent visibles */
.player__frame:fullscreen { display: flex; flex-direction: column; justify-content: center; padding: 3vh 3vw; background: #000; }
.player__frame:fullscreen .player__stage { width: min(100%, calc(84vh * 16 / 9)); margin-inline: auto; }
.player__frame:fullscreen .player__controls,
.player__frame:fullscreen .player__title { width: min(100%, calc(84vh * 16 / 9)); margin-inline: auto; }
.player__frame:fullscreen .player__close { display: none; }
.player__video { width: 100%; height: 100%; object-fit: contain; background: #000; cursor: pointer; }
.player__bigplay {
  position: absolute; top: 50%; left: 50%;
  display: grid; place-items: center;
  width: 88px; height: 88px;
  border-radius: 50%;
  background: rgba(201, 168, 106, .92);
  color: var(--c-black);
  transform: translate(-50%, -50%);
  transition: opacity .4s, transform .4s var(--ease);
}
.player__bigplay svg { width: 28px; height: 28px; margin-left: 4px; }
.player.is-playing .player__bigplay { opacity: 0; transform: translate(-50%, -50%) scale(.8); pointer-events: none; }
.player__fallback {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  padding: 24px;
  background: radial-gradient(circle at 50% 45%, #1F1C17 0%, #000 70%);
  color: var(--t-2);
  font-family: var(--f-title); font-weight: 300; font-size: 1.2rem; text-align: center;
}

.player__controls { display: flex; align-items: center; gap: 12px; padding-top: 14px; }
.player__btn { display: grid; place-items: center; flex-shrink: 0; width: 40px; height: 40px; transition: color .3s; }
.player__btn svg { width: 20px; height: 20px; }
.player__btn:hover { color: var(--c-gold); }
.player__time { min-width: 40px; color: var(--t-2); font-size: .78rem; font-variant-numeric: tabular-nums; text-align: center; }

.player__progress { position: relative; flex: 1; height: 24px; display: flex; align-items: center; }
.player__progress::before { content: ""; position: absolute; left: 0; right: 0; height: 2px; background: rgba(255, 255, 255, .16); }
.player__buffer, .player__fill { position: absolute; left: 0; width: 0; height: 2px; }
.player__buffer { background: rgba(255, 255, 255, .3); }
.player__fill { background: var(--c-gold); }
.player__seek {
  position: absolute; inset: 0;
  width: 100%;
  margin: 0;
  background: transparent;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}
.player__seek::-webkit-slider-runnable-track { height: 2px; background: transparent; }
.player__seek::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; margin-top: -5px; border-radius: 50%; background: var(--c-gold); }
.player__seek::-moz-range-track { height: 2px; background: transparent; }
.player__seek::-moz-range-thumb { width: 12px; height: 12px; border: 0; border-radius: 50%; background: var(--c-gold); }

.player__title { margin-top: 10px; color: var(--t-2); font-family: var(--f-title); font-weight: 300; font-size: .95rem; }

/* ---------------------------------------------------------------- 16. Pages légales & pages simples */
.page-legal .header { background: rgba(0, 0, 0, .9); border-bottom-color: var(--line); }
.page-legal .footer { padding: 32px 0; }
.page-legal .footer__bottom { padding-top: 0; border-top: 0; }
.header__back { position: relative; z-index: 2; }

.legal { padding: calc(var(--header-h) + 80px) 0 120px; background: var(--c-black); }
.legal__inner { max-width: 840px; }
.legal h1 { font-family: var(--f-title); font-weight: 300; font-size: clamp(2.2rem, 4.5vw, 3.4rem); line-height: 1.1; letter-spacing: -.015em; }
.legal__intro { margin-top: 20px; color: var(--t-2); font-size: 1.05rem; font-weight: 300; }
.legal__updated { margin-top: 12px; color: var(--t-3); font-size: .85rem; }
.legal__notice {
  margin-top: 36px;
  padding: 18px 22px;
  border-left: 2px solid var(--c-gold);
  background: rgba(201, 168, 106, .08);
  color: var(--t-2);
  font-size: .9rem;
}
.legal__toc { columns: 2; column-gap: 40px; margin-top: 40px; padding: 24px 0; border-block: 1px solid var(--line); }
.legal__toc li { margin-bottom: 8px; break-inside: avoid; }
.legal__toc a { color: var(--t-2); font-size: .9rem; transition: color .3s; }
.legal__toc a:hover { color: var(--c-gold); }

.legal h2 {
  margin: 56px 0 18px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-family: var(--f-title); font-weight: 400; font-size: 1.3rem; line-height: 1.35;
  scroll-margin-top: 90px;
}
.legal h2 span { display: block; margin-bottom: 6px; font-size: .68rem; font-weight: 500; letter-spacing: .24em; text-transform: uppercase; color: var(--c-gold); }
.legal h3 { margin: 28px 0 10px; font-family: var(--f-title); font-weight: 500; font-size: 1rem; }
.legal p, .legal li { margin-bottom: 14px; color: var(--t-2); }
.legal ul { padding-left: 1.2em; list-style: disc; }
.legal ul li::marker { color: var(--c-gold); }
.legal a { color: var(--c-gold); text-decoration: underline; text-underline-offset: 3px; }
.legal strong { color: var(--t-1); font-weight: 500; }

.legal dl { display: grid; grid-template-columns: minmax(0, 220px) minmax(0, 1fr); border-top: 1px solid var(--line); }
.legal dt, .legal dd { padding: 14px 0; border-bottom: 1px solid var(--line); }
.legal dt { padding-right: 24px; color: var(--t-3); font-size: .9rem; }
.legal dd { color: var(--t-1); }

/* Champs à compléter */
.todo { padding: 0 6px; background: rgba(201, 168, 106, .16); color: var(--c-gold-light); font-style: normal; }

.simple {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 100vh;
  min-height: 100svh;
  padding: 140px var(--gutter) 80px;
  overflow: hidden;
  text-align: center;
  background: radial-gradient(ellipse at 50% 30%, rgba(201, 168, 106, .16), rgba(0, 0, 0, 0) 60%), var(--c-black);
}
.simple__inner { max-width: 640px; }
.simple__code { font-family: var(--f-title); font-weight: 300; font-size: clamp(4rem, 12vw, 8rem); line-height: 1; color: var(--c-gold); }
.simple h1 { margin-top: 18px; font-family: var(--f-title); font-weight: 300; font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1.15; }
.simple h1 em { color: var(--c-gold); }
.simple p { margin: 20px auto 0; max-width: 46ch; color: var(--t-2); }
.simple .btn { margin-top: 40px; }
.simple__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0 14px; }

/* ---------------------------------------------------------------- 17. Animations */
/* Apparition au défilement (activée seulement si JavaScript est disponible) */
.js .reveal {
  opacity: 0;
  transform: translate3d(0, 32px, 0);
  transition: opacity 1.1s var(--ease), transform 1.1s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

/* Barres des graphiques : croissance depuis la ligne de base */
.js .bar { transform: scaleX(0); transform-box: fill-box; transform-origin: 0 50%; transition: transform 1.4s var(--ease), fill .3s; }
.js .bar--video { transition-delay: .25s, 0s; }
.js .is-visible .bar { transform: scaleX(1); }
.js .chart-value { opacity: 0; transition: opacity .8s var(--ease) 1s; }
.js .is-visible .chart-value { opacity: 1; }

/* Entrée du hero */
.hero__eyebrow, .hero__line, .hero__subtitle, .hero__actions, .hero__bottom {
  animation: rise 1.3s var(--ease) both;
}
.hero__eyebrow { animation-delay: .15s; }
.hero__line:nth-child(1) { animation-delay: .3s; }
.hero__line:nth-child(2) { animation-delay: .42s; }
.hero__line:nth-child(3) { animation-delay: .54s; }
.hero__subtitle { animation-delay: .75s; }
.hero__actions { animation-delay: .9s; }
.hero__bottom { animation-delay: 1.1s; }

@keyframes rise {
  from { opacity: 0; transform: translate3d(0, 40px, 0); }
  to { opacity: 1; transform: none; }
}
@keyframes kenburns {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.18) translate3d(-2.5%, -1.5%, 0); }
}
@keyframes drift-1 {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-8vmax, 6vmax, 0); }
}
@keyframes drift-2 {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(10vmax, -5vmax, 0); }
}
@keyframes grain {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-4%, 3%); }
  40% { transform: translate(3%, -4%); }
  60% { transform: translate(-2%, 5%); }
  80% { transform: translate(5%, 1%); }
  100% { transform: translate(0, 0); }
}
@keyframes scroll-dot {
  0% { opacity: 0; transform: translateY(0); }
  30% { opacity: 1; }
  100% { opacity: 0; transform: translateY(16px); }
}
@keyframes player-in {
  from { opacity: 0; transform: translateY(24px) scale(.98); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0s !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------------------------------------------------------------- 18. Responsive */
@media (max-width: 1180px) {
  .burger { display: block; }

  .nav {
    position: fixed; inset: 0;
    z-index: 1;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0, 0, 0, .97);
    opacity: 0;
    visibility: hidden;
    transition: opacity .5s var(--ease), visibility .5s;
  }
  .nav.is-open { opacity: 1; visibility: visible; }
  .nav__list { flex-direction: column; gap: 6px; text-align: center; }
  .nav__list li { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
  .nav.is-open .nav__list li { opacity: 1; transform: none; }
  .nav.is-open .nav__list li:nth-child(2) { transition-delay: .05s; }
  .nav.is-open .nav__list li:nth-child(3) { transition-delay: .1s; }
  .nav.is-open .nav__list li:nth-child(4) { transition-delay: .15s; }
  .nav.is-open .nav__list li:nth-child(5) { transition-delay: .2s; }
  .nav.is-open .nav__list li:nth-child(6) { transition-delay: .25s; }
  .nav.is-open .nav__list li:nth-child(7) { transition-delay: .3s; }
  .nav.is-open .nav__list li:nth-child(8) { transition-delay: .35s; }
  .nav__link { padding: 12px 0; font-size: .95rem; letter-spacing: .2em; }
  .nav__link--compte svg { width: 18px; height: 18px; }
  .nav__link--cta { margin-top: 18px; padding: 14px 28px; }
}

@media (max-width: 1024px) {
  .stats__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .services__grid { grid-template-columns: minmax(0, 1fr); max-width: 680px; margin-inline: auto; }
  .service--signature { margin-top: 12px; }
}

@media (max-width: 900px) {
  .section-head--split,
  .problems__grid,
  .about__grid,
  .contact__grid { grid-template-columns: minmax(0, 1fr); }

  .problems__intro { position: static; }

  .films { grid-template-columns: minmax(0, 1fr); }
  .film--featured { grid-row: auto; aspect-ratio: 16 / 9; min-height: 0; }

  .features, .process__steps { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .step { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 4px 20px; text-align: left; }
  .step__num { grid-column: 2; margin-bottom: 0; }
  .step__icon { grid-column: 1; grid-row: 1 / span 3; margin: 0; }
  .step__title, .step__text { grid-column: 2; }
  .step__text { margin: 6px 0 0; }

  .about__photo { max-width: 420px; }
  .footer__grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .legend-note { margin-left: 0; width: 100%; }
}

@media (max-width: 640px) {
  :root { --header-h: 68px; }
  .logo__svg { width: 128px; height: 21px; }

  .hero__actions .btn { flex: 1 1 100%; }
  .hero__bottom { padding-bottom: 28px; }
  .hero__proofs { flex-direction: column; border-top: 0; }
  .hero__proofs li, .hero__proofs li + li { padding: 12px 0 0; border-left: 0; }
  .hero__proofs li + li { margin-top: 12px; border-top: 1px solid var(--line); }
  .hero__scroll { display: none; }

  .problem { grid-template-columns: 36px minmax(0, 1fr); gap: 12px; }
  .problem__body { grid-template-columns: minmax(0, 1fr); }

  .stats__grid { grid-template-columns: minmax(0, 1fr); }
  .stat { padding: 36px 4px 32px; }
  .stat__label { min-height: 0; }

  .film__meta { padding: 18px 20px; }
  .film__play { width: 60px; height: 60px; }
  .film--featured .film__play { width: 72px; height: 72px; }
  .cta-band { flex-direction: column; align-items: flex-start; }
  .cta-band .btn { width: 100%; }

  .tri__stage { aspect-ratio: 4 / 3.4; }
  .tri__knob { width: 42px; height: 42px; }
  .tri__label { top: 10px; padding: 6px 9px; }
  .tri__label > span { display: none; }  /* le numéro suffit sur petit écran */
  .tri__label--1 { left: 10px; }
  .tri__label--2 { left: calc(var(--a) + 10px); }
  .tri__label--3 { left: calc(var(--b) + 10px); }
  .tri__steps { column-gap: 12px; }
  .tri__step { grid-template-columns: minmax(0, 1fr); }
  .tri__num { grid-row: auto; font-size: 1.2rem; }
  .tri__name { font-size: .6rem; letter-spacing: .12em; }
  .tri__desc { display: none; }

  .service { padding: 40px 24px 32px; }
  .about__blocks { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .about__photo { margin-right: 16px; }
  .about__photo::before { inset: 16px -16px -16px 16px; }

  .form__row { grid-template-columns: minmax(0, 1fr); }
  .btn { white-space: normal; text-align: center; }

  .player__controls { gap: 4px; }
  .player__time { min-width: 34px; font-size: .7rem; }
  .player__close { top: -50px; right: 0; }

  .legal dl { grid-template-columns: minmax(0, 1fr); }
  .legal dt { padding-bottom: 0; border-bottom: 0; }
  .legal__toc { columns: 1; }
}