/* =========================================================================
   AUBIN NUMÉRISATION — Feuille de style principale
   Palette : Brun #ecc19c · Turquoise #1e847f · Noir #000000
   Ambiance : rétro/analogique (VHS, pellicule) + traitement contemporain
   Organisation :
     1.  Variables & thème
     2.  Reset & base
     3.  Typographie
     4.  Utilitaires (container, sections, reveal au scroll)
     5.  Boutons & liens animés
     6.  Loader (bobine + scanlines)
     7.  En-tête / navigation sticky
     8.  Hero
     9.  Cartes services & formats
     10. Bandeaux (réassurance, CTA)
     11. Tarifs & calculateur
     12. Processus (timeline)
     13. Contact & formulaire
     14. Pied de page
     15. Responsive
     16. prefers-reduced-motion (accessibilité)
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. VARIABLES & THÈME
   ------------------------------------------------------------------------- */
:root {
  /* Charte graphique */
  --brun: #ecc19c;
  --turquoise: #1e847f;
  --noir: #000000;

  /* Déclinaisons dérivées (contraste & interactions) */
  --turquoise-dark: #14605c;   /* liens/texte sur fond clair (contraste AA) */
  --turquoise-deep: #0e4744;   /* survols profonds */
  --turquoise-light: #2ba79f;  /* halos, dégradés */
  --brun-soft: #f4dcc4;        /* panneaux chauds clairs */
  --brun-deep: #d89e6f;        /* accents chauds appuyés */
  --cream: #faf5ee;            /* fond clair général */
  --ink: #0d0d0f;              /* texte principal (noir légèrement adouci) */
  --ink-soft: #3a3a3f;         /* texte secondaire */
  --white: #ffffff;
  --line: rgba(13, 13, 15, 0.12);

  /* Fonds sombres (sections « analogiques ») — turquoise très profond
     dérivé de la charte plutôt que du noir pur : plus doux et harmonieux */
  --dark: #0d3c39;
  --dark-2: #124f49;
  --dark-line: rgba(236, 193, 156, 0.16);

  /* Typographie */
  --font-display: 'Space Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  /* Rythme & rayons */
  --radius: 18px;
  --radius-lg: 28px;
  --container: 1180px;
  --ease: cubic-bezier(0.22, 0.7, 0.24, 1); /* easing doux commun */

  /* Ombres */
  --shadow-soft: 0 18px 50px -25px rgba(20, 96, 92, 0.45);
  --shadow-card: 0 24px 60px -30px rgba(0, 0, 0, 0.35);
}

/* -------------------------------------------------------------------------
   2. RESET & BASE
   ------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; height: auto; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

:focus-visible {
  outline: 3px solid var(--turquoise);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Sélection de texte aux couleurs de la marque */
::selection { background: var(--turquoise); color: var(--white); }

/* -------------------------------------------------------------------------
   3. TYPOGRAPHIE
   ------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 { font-size: clamp(2.4rem, 1.6rem + 3.6vw, 4.4rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 1.05rem + 0.8vw, 1.6rem); }

p { color: var(--ink-soft); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--turquoise-dark);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--turquoise);
  display: inline-block;
}
.eyebrow--light { color: var(--brun); }
.eyebrow--light::before { background: var(--brun); }

.lead {
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  color: var(--ink-soft);
  max-width: 60ch;
}

/* Mot accentué en turquoise dans les titres */
.accent { color: var(--turquoise); }
.on-dark .accent { color: var(--brun); }

/* -------------------------------------------------------------------------
   4. UTILITAIRES
   ------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.2rem, 5vw, 2.5rem);
}

.section { padding-block: clamp(4rem, 3rem + 5vw, 7.5rem); }
.section--tight { padding-block: clamp(3rem, 2.5rem + 3vw, 5rem); }

.section-head { max-width: 62ch; margin-bottom: clamp(2.2rem, 4vw, 3.4rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head .lead { margin-top: 1rem; }

/* Sections à fond sombre « analogique » (grain + halo turquoise) */
.on-dark {
  position: relative;
  background: radial-gradient(120% 120% at 80% -10%, #1c6b62 0%, var(--dark-2) 42%, var(--dark) 100%);
  color: var(--brun-soft);
  isolation: isolate;
}
.on-dark h1, .on-dark h2, .on-dark h3 { color: var(--white); }
.on-dark p { color: rgba(244, 220, 196, 0.82); }
.on-dark .eyebrow { color: var(--brun); }
.on-dark .eyebrow::before { background: var(--brun); }

/* Grain de pellicule + scanlines discrètes sur les sections sombres */
.on-dark::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 3px);
  mix-blend-mode: overlay;
  opacity: 0.6;
}

/* Séparateur décoratif « bande » */
.tape-divider {
  height: 10px;
  width: 100%;
  background: repeating-linear-gradient(
    90deg,
    var(--turquoise) 0 22px,
    var(--brun) 22px 32px,
    var(--noir) 32px 40px
  );
  opacity: 0.9;
}

/* --- Révélation au défilement (IntersectionObserver ajoute .is-visible) --- */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition:
    opacity 0.8s var(--ease),
    transform 0.8s var(--ease);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}
[data-reveal="left"]  { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal="zoom"]  { transform: scale(0.94); }
[data-reveal].is-visible { opacity: 1; transform: none; }

/* Grille auto-responsive réutilisable */
.grid { display: grid; gap: clamp(1.2rem, 2.5vw, 2rem); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* -------------------------------------------------------------------------
   5. BOUTONS & LIENS ANIMÉS
   ------------------------------------------------------------------------- */
.btn {
  --btn-bg: var(--turquoise);
  --btn-fg: var(--white);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: 0.95em 1.7em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: 2px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), color 0.35s var(--ease);
}
/* Voile lumineux qui glisse au survol (effet « brillance ») */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(120deg, var(--turquoise-deep), var(--turquoise-light));
  transform: translateX(-101%);
  transition: transform 0.5s var(--ease);
}
.btn:hover,
.btn:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 16px 32px -14px rgba(20, 96, 92, 0.75);
}
.btn:hover::before,
.btn:focus-visible::before { transform: translateX(0); }
.btn:active { transform: translateY(-1px) scale(0.99); }

.btn .btn__icon { transition: transform 0.35s var(--ease); }
.btn:hover .btn__icon { transform: translateX(4px); }

/* Variante secondaire (contour) */
.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--turquoise-dark);
  border-color: var(--turquoise);
}
.btn--ghost::before { background: var(--turquoise); }
.btn--ghost:hover,
.btn--ghost:focus-visible { --btn-fg: var(--white); }

/* Variante chaude (brun) */
.btn--warm {
  --btn-bg: var(--brun);
  --btn-fg: var(--ink);
}
.btn--warm::before { background: linear-gradient(120deg, var(--brun-deep), var(--brun)); }

/* Sur fond sombre : contour clair */
.on-dark .btn--ghost { --btn-fg: var(--brun-soft); border-color: var(--brun); }
.on-dark .btn--ghost::before { background: var(--brun); }
.on-dark .btn--ghost:hover { --btn-fg: var(--ink); }

.btn-group { display: flex; flex-wrap: wrap; gap: 0.9rem; }

/* Lien texte souligné animé */
.link-underline {
  position: relative;
  color: var(--turquoise-dark);
  font-weight: 600;
}
.link-underline::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}
.link-underline:hover::after { transform: scaleX(1); transform-origin: left; }

/* -------------------------------------------------------------------------
   6. LOADER — bobine de film + scanlines rétro qui se stabilisent
   ------------------------------------------------------------------------- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: radial-gradient(120% 120% at 50% 40%, #1c6b62 0%, var(--dark-2) 45%, var(--dark) 100%);
  transition: opacity 0.7s var(--ease), visibility 0.7s var(--ease);
}
body.is-loaded .loader { opacity: 0; visibility: hidden; }

.loader__inner {
  display: grid;
  justify-items: center;
  gap: 1.6rem;
  text-align: center;
  padding: 2rem;
}

.reel { animation: reel-spin 1.4s linear infinite; transform-origin: 50% 50%; }
@keyframes reel-spin { to { transform: rotate(360deg); } }

.loader__brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.28em;
  font-size: clamp(1rem, 0.9rem + 1vw, 1.5rem);
  color: var(--white);
  text-transform: uppercase;
  animation: glitch 2.4s steps(1) infinite;
}
.loader__brand span { color: var(--brun); }

/* Effet glitch/tracking VHS qui se calme (décalage de couleurs) */
@keyframes glitch {
  0%, 100% { text-shadow: none; transform: none; }
  6%  { text-shadow: -2px 0 var(--turquoise-light), 2px 0 var(--brun); transform: translateX(1px); }
  8%  { text-shadow: 2px 0 var(--turquoise-light), -2px 0 var(--brun); transform: translateX(-1px); }
  10% { text-shadow: none; transform: none; }
}

.loader__bar {
  width: min(240px, 60vw);
  height: 6px;
  border-radius: 999px;
  background: rgba(236, 193, 156, 0.18);
  overflow: hidden;
}
.loader__bar span {
  display: block;
  height: 100%;
  width: 40%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--turquoise), var(--brun));
  animation: loading-bar 1.3s var(--ease) infinite;
}
@keyframes loading-bar {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}

/* Scanlines animées superposées au loader */
.loader__scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.28) 0 2px,
    transparent 2px 4px
  );
  animation: scan 6s linear infinite;
  opacity: 0.5;
}
@keyframes scan {
  from { background-position-y: 0; }
  to   { background-position-y: 100px; }
}

/* -------------------------------------------------------------------------
   7. EN-TÊTE / NAVIGATION STICKY
   ------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding-block: 1.1rem;
  transition: background 0.4s var(--ease), padding 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
/* État après défilement : fond translucide + flou */
.site-header.is-scrolled {
  padding-block: 0.7rem;
  background: rgba(250, 245, 238, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line), 0 12px 30px -24px rgba(0, 0, 0, 0.5);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo — couleurs CLAIRES par défaut (barre transparente au-dessus du hero
   sombre). Elles basculent vers le foncé quand la barre devient crème
   au défilement (voir bloc « .is-scrolled » plus bas). */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--white);
  font-size: 1.05rem;
  transition: color 0.4s var(--ease);
}
.brand__mark {
  width: 40px; height: 30px;
  flex: none;
  color: var(--brun);
  transition: transform 0.5s var(--ease), color 0.4s var(--ease);
}
.brand:hover .brand__mark { transform: rotate(-4deg) scale(1.06); }
.brand strong { font-weight: 700; }
.brand span { color: var(--brun); font-weight: 500; transition: color 0.4s var(--ease); }

/* Liens de navigation */
.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2rem);
}
.nav__link {
  position: relative;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.98rem;
  color: var(--brun-soft);
  padding-block: 0.4rem;
  transition: color 0.3s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  background: var(--brun);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease), background 0.4s var(--ease);
}
.nav__link:hover,
.nav__link:focus-visible { color: var(--white); }
.nav__link:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__link.is-active { color: var(--brun); }
.nav__link.is-active::after { transform: scaleX(1); }

.nav__cta { margin-left: 0.5rem; }

/* Bouton hamburger (mobile) */
.nav__toggle {
  display: none;
  width: 46px; height: 46px;
  border: none;
  background: transparent;
  cursor: pointer;
  position: relative;
  z-index: 1200;
}
.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  position: absolute;
  left: 11px;
  width: 24px; height: 2px;
  background: var(--brun-soft);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.2s var(--ease), top 0.35s var(--ease), background 0.3s var(--ease);
}
.nav__toggle span { top: 22px; }
.nav__toggle span::before { top: -7px; }
.nav__toggle span::after { top: 7px; }
.nav.is-open .nav__toggle span { background: transparent; }
.nav.is-open .nav__toggle span::before { top: 0; transform: rotate(45deg); }
.nav.is-open .nav__toggle span::after  { top: 0; transform: rotate(-45deg); }

/* --- Bascule des couleurs quand la barre passe sur fond clair (défilement) --- */
.site-header.is-scrolled .brand { color: var(--ink); }
.site-header.is-scrolled .brand span { color: var(--turquoise-dark); }
.site-header.is-scrolled .brand__mark { color: var(--turquoise); }
.site-header.is-scrolled .nav__link { color: var(--ink); }
.site-header.is-scrolled .nav__link:hover,
.site-header.is-scrolled .nav__link:focus-visible,
.site-header.is-scrolled .nav__link.is-active { color: var(--turquoise-dark); }
.site-header.is-scrolled .nav__link::after { background: var(--turquoise); }
.site-header.is-scrolled .nav__toggle span,
.site-header.is-scrolled .nav__toggle span::before,
.site-header.is-scrolled .nav__toggle span::after { background: var(--ink); }

/* -------------------------------------------------------------------------
   8. HERO
   ------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;      /* repli pour les navigateurs sans unité svh */
  min-height: 100svh;     /* hauteur d'écran fiable sur mobile */
  display: flex;
  align-items: center;
  padding-top: 7rem;
  overflow: hidden;
  color: var(--brun-soft);
  background: radial-gradient(120% 120% at 78% 8%, #1f7269 0%, var(--dark-2) 46%, var(--dark) 100%);
  isolation: isolate;
}
/* Halo turquoise flottant */
.hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  width: 60vw; height: 60vw;
  max-width: 720px; max-height: 720px;
  top: -20%; right: -10%;
  background: radial-gradient(circle, rgba(43, 167, 159, 0.35), transparent 62%);
  filter: blur(20px);
  animation: floaty 12s ease-in-out infinite;
}
/* Scanlines discrètes sur tout le hero */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 3px);
  opacity: 0.5;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(30px) scale(1.06); }
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  width: 100%;
}

.hero h1 { color: var(--white); }
.hero__lead {
  margin-top: 1.4rem;
  color: rgba(244, 220, 196, 0.85);
  font-size: clamp(1.1rem, 1rem + 0.6vw, 1.4rem);
  max-width: 46ch;
}
.hero .btn-group { margin-top: 2.2rem; }

/* Petits repères statistiques sous le hero */
.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2.2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--dark-line);
}
.hero__stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--brun);
  line-height: 1;
}
.hero__stat span { font-size: 0.9rem; color: rgba(244, 220, 196, 0.7); }

/* Visuel cassette VHS stylisée (SVG animé) */
.hero__visual {
  position: relative;
  display: grid;
  place-items: center;
}
.cassette {
  width: min(100%, 460px);
  filter: drop-shadow(0 40px 60px rgba(0, 0, 0, 0.55));
  animation: cassette-float 7s ease-in-out infinite;
}
@keyframes cassette-float {
  0%, 100% { transform: translateY(0) rotate(-1.5deg); }
  50%      { transform: translateY(-18px) rotate(1.5deg); }
}
/* transform-box: fill-box → rotation autour du centre propre de chaque bobine */
.cassette__reel {
  transform-box: fill-box;
  transform-origin: center;
  animation: reel-spin 4s linear infinite;
}
.cassette__reel--r { animation-duration: 4.6s; }

.scroll-hint {
  position: absolute;
  bottom: 1.8rem; left: 50%;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(244, 220, 196, 0.6);
}
.scroll-hint .mouse {
  width: 22px; height: 34px;
  border: 2px solid rgba(244, 220, 196, 0.5);
  border-radius: 12px;
  position: relative;
}
.scroll-hint .mouse::after {
  content: "";
  position: absolute;
  left: 50%; top: 6px;
  width: 3px; height: 6px;
  background: var(--brun);
  border-radius: 2px;
  transform: translateX(-50%);
  animation: mouse-scroll 1.8s var(--ease) infinite;
}
@keyframes mouse-scroll {
  0% { opacity: 0; transform: translate(-50%, 0); }
  40% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, 12px); }
}

/* Hero secondaire (pages internes) */
.page-hero {
  position: relative;
  padding-top: clamp(9rem, 8rem + 6vw, 12rem);
  padding-bottom: clamp(3rem, 2.5rem + 3vw, 5rem);
  text-align: center;
  overflow: hidden;
}
.page-hero .container { position: relative; }
.page-hero h1 { color: var(--white); }
.page-hero .lead { margin: 1.2rem auto 0; }

/* -------------------------------------------------------------------------
   9. CARTES SERVICES & FORMATS
   ------------------------------------------------------------------------- */
.card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  overflow: hidden;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--turquoise), transparent 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card);
  border-color: transparent;
}
.card:hover::before { opacity: 1; }

.card__icon {
  width: 60px; height: 60px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--turquoise), var(--turquoise-light));
  color: var(--white);
  margin-bottom: 1.3rem;
  transition: transform 0.5s var(--ease);
}
.card:hover .card__icon { transform: rotate(-6deg) scale(1.05); }
.card__icon--warm { background: linear-gradient(135deg, var(--brun-deep), var(--brun)); color: var(--ink); }

.card h3 { margin-bottom: 0.6rem; }
.card p { margin-bottom: 1.1rem; }

/* Étiquettes de formats supportés */
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.35em 0.85em;
  border-radius: 999px;
  background: var(--brun-soft);
  color: var(--turquoise-deep);
  border: 1px solid rgba(20, 96, 92, 0.12);
  transition: background 0.3s var(--ease), color 0.3s var(--ease), transform 0.3s var(--ease);
}
.tag:hover { background: var(--turquoise); color: var(--white); transform: translateY(-2px); }

/* Cartes sur fond sombre */
.on-dark .card {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--dark-line);
  backdrop-filter: blur(6px);
}
.on-dark .card h3 { color: var(--white); }
.on-dark .tag { background: rgba(236, 193, 156, 0.12); color: var(--brun); border-color: rgba(236, 193, 156, 0.25); }
.on-dark .tag:hover { background: var(--brun); color: var(--ink); }

/* -------------------------------------------------------------------------
   10. BANDEAUX (réassurance, CTA)
   ------------------------------------------------------------------------- */
.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.2rem, 3vw, 2.4rem);
}
.feature {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
}
.feature__ic {
  width: 48px; height: 48px;
  flex: none;
  display: grid; place-items: center;
  border-radius: 14px;
  background: rgba(20, 96, 92, 0.1);
  color: var(--turquoise-dark);
}
.feature h4 { font-size: 1.1rem; margin-bottom: 0.25rem; }
.feature p { font-size: 0.96rem; margin: 0; }

/* Bandeau brun de réassurance */
.warm-band { background: linear-gradient(135deg, var(--brun) 0%, var(--brun-soft) 100%); }
.warm-band .feature__ic { background: rgba(0, 0, 0, 0.08); color: var(--turquoise-deep); }
.warm-band h2, .warm-band h4 { color: var(--ink); }
.warm-band p { color: rgba(13, 13, 15, 0.72); }

/* Bandeau CTA turquoise */
.cta-band {
  position: relative;
  background: linear-gradient(135deg, var(--turquoise-deep), var(--turquoise));
  color: var(--white);
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}
.cta-band::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.05) 0 1px, transparent 1px 4px);
  opacity: 0.6;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: rgba(255, 255, 255, 0.85); margin: 1rem auto 2rem; max-width: 52ch; }
.cta-band .btn-group { justify-content: center; }
.cta-band .btn--warm { --btn-fg: var(--turquoise-deep); }

/* -------------------------------------------------------------------------
   11. TARIFS & CALCULATEUR
   ------------------------------------------------------------------------- */
.price-card { text-align: center; }
.price-card .amount {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 1.8rem + 2vw, 3rem);
  color: var(--turquoise-dark);
  line-height: 1;
  margin: 0.6rem 0 0.2rem;
}
.price-card .amount small {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
}
.price-card .unit { font-size: 0.95rem; color: var(--ink-soft); }

/* Bloc calculateur : formulaire à gauche, récapitulatif à droite */
.calculator {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}
.calc-panel {
  background: var(--white);
  color: var(--ink);            /* base de texte foncée (le panneau blanc est dans une section sombre) */
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 3vw, 2.5rem);
  box-shadow: var(--shadow-soft);
}

.calc-field { margin-bottom: 1.8rem; }
.calc-field > label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.calc-field .hint { font-size: 0.9rem; color: var(--ink-soft); margin-bottom: 0.8rem; }

/* Sélecteur numérique personnalisé (− valeur +) */
.stepper {
  display: inline-flex;
  align-items: stretch;
  border: 2px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.stepper:focus-within {
  border-color: var(--turquoise);
  box-shadow: 0 0 0 4px rgba(30, 132, 127, 0.15);
}
.stepper button {
  width: 48px;
  border: none;
  background: var(--cream);
  font-size: 1.4rem;
  font-family: var(--font-display);
  color: var(--turquoise-dark);
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), transform 0.15s var(--ease);
}
.stepper button:hover { background: var(--turquoise); color: var(--white); }
.stepper button:active { transform: scale(0.9); }
.stepper input {
  width: 74px;
  border: none;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--ink);
  background: var(--white);
  -moz-appearance: textfield;
}
.stepper input::-webkit-outer-spin-button,
.stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

/* Options de livraison (cases stylisées) */
.delivery-options { display: grid; gap: 0.8rem; }
.opt {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}
.opt:hover { border-color: var(--turquoise-light); transform: translateY(-2px); }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt__box {
  width: 26px; height: 26px;
  flex: none;
  border: 2px solid var(--turquoise);
  border-radius: 8px;
  display: grid; place-items: center;
  color: var(--white);
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}
.opt__box svg { opacity: 0; transform: scale(0.4); transition: opacity 0.2s var(--ease), transform 0.25s var(--ease); }
.opt input:checked ~ .opt__box { background: var(--turquoise); }
.opt input:checked ~ .opt__box svg { opacity: 1; transform: scale(1); }
.opt input:checked ~ .opt__text { color: var(--ink); }
.opt:has(input:checked) { border-color: var(--turquoise); background: rgba(30, 132, 127, 0.05); }
.opt input:focus-visible ~ .opt__box { outline: 3px solid var(--turquoise); outline-offset: 3px; }
.opt__text { flex: 1; }
.opt__text b { font-family: var(--font-display); display: block; }
.opt__text span { font-size: 0.9rem; color: var(--ink-soft); }
.opt__price {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--turquoise-dark);
  white-space: nowrap;
}

/* Récapitulatif / total */
.summary {
  position: sticky;
  top: 6rem;
  background: linear-gradient(160deg, var(--dark-2), var(--dark));
  color: var(--brun-soft);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  overflow: hidden;
  isolation: isolate;
}
.summary::after {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 4px);
  opacity: 0.5;
}
.summary h3 { color: var(--white); margin-bottom: 1.2rem; }
.summary__lines { display: grid; gap: 0.7rem; margin-bottom: 1.2rem; min-height: 1.5rem; }
.summary__line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.96rem;
  color: rgba(244, 220, 196, 0.85);
  padding-bottom: 0.7rem;
  border-bottom: 1px dashed rgba(236, 193, 156, 0.18);
  animation: line-in 0.4s var(--ease);
}
.summary__line span:last-child { font-family: var(--font-display); font-weight: 600; color: var(--brun); }
.summary__line--empty { color: rgba(244, 220, 196, 0.5); border-bottom: none; justify-content: flex-start; }
@keyframes line-in { from { opacity: 0; transform: translateX(-8px); } to { opacity: 1; transform: none; } }

.summary__total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 2px solid rgba(236, 193, 156, 0.3);
}
.summary__total span { font-family: var(--font-display); color: var(--white); font-size: 1.05rem; }
.summary__total .total-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 1.6rem + 2vw, 2.8rem);
  color: var(--brun);
  line-height: 1;
}
/* Pulsation à chaque changement de total */
.total-value.pulse { animation: price-pulse 0.5s var(--ease); }
@keyframes price-pulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.12); color: var(--turquoise-light); }
  100% { transform: scale(1); }
}
.summary .btn { width: 100%; margin-top: 1.6rem; }

.delay-note {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  background: var(--brun-soft);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  color: var(--turquoise-deep);
  font-size: 0.96rem;
}
.delay-note svg { flex: none; color: var(--turquoise-dark); }

/* Sous-titre de section tarifaire (ex. « Options de livraison ») */
.tarif-subhead {
  margin: 2.8rem 0 1.4rem;
  font-size: 1.35rem;
}
.tarif-subhead span {
  color: var(--ink-soft);
  font-weight: 400;
  font-size: 0.95rem;
  font-family: var(--font-body);
}

/* Rangées de saisie par taille de bobine (dans le calculateur) */
.reel-rows { display: grid; gap: 0.9rem; }
.reel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.85rem 1.1rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.3s var(--ease);
}
.reel-row:hover { border-color: var(--turquoise-light); }
.reel-row__info b { font-family: var(--font-display); display: block; }
.reel-row__info span { font-size: 0.86rem; color: var(--ink-soft); }

/* Guide de choix de la taille de bobine */
.size-guide {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  box-shadow: var(--shadow-soft);
}
.size-guide h3 { margin-bottom: 0.7rem; }
.size-guide > p { margin-bottom: 1.6rem; }
.size-table-wrap { overflow-x: auto; }          /* défilement horizontal sur mobile */
.size-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 460px;
  font-size: 0.98rem;
}
.size-table th,
.size-table td {
  text-align: left;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
}
.size-table thead th {
  font-family: var(--font-display);
  color: var(--turquoise-dark);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.size-table tbody tr { transition: background 0.3s var(--ease); }
.size-table tbody tr:hover { background: var(--brun-soft); }
.size-table tbody tr:last-child td { border-bottom: none; }
.size-table .size-name { font-family: var(--font-display); font-weight: 600; color: var(--ink); }
.size-table td:last-child {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--turquoise-dark);
  white-space: nowrap;
}
.size-note {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  border-left: 3px solid var(--turquoise);
  padding-left: 1rem;
}

/* Note de confidentialité sous le formulaire de contact */
.form-privacy { margin-top: 1rem; font-size: 0.86rem; color: var(--ink-soft); }
.form-privacy a { color: var(--turquoise-dark); text-decoration: underline; text-underline-offset: 2px; }

/* -------------------------------------------------------------------------
   PAGES LÉGALES (Mentions légales, Politique de confidentialité)
   ------------------------------------------------------------------------- */
.prose { max-width: 74ch; }
.prose > p,
.prose > ul { margin-bottom: 1.1rem; color: var(--ink-soft); }
.prose h2 {
  font-size: clamp(1.4rem, 1.2rem + 1vw, 1.9rem);
  margin: 2.6rem 0 0.9rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
}
.prose h2:first-of-type { border-top: none; padding-top: 0; margin-top: 0; }
.prose h3 { font-size: 1.15rem; margin: 1.4rem 0 0.5rem; }
.prose ul { padding-left: 1.3rem; list-style: disc; }
.prose li { margin-bottom: 0.45rem; color: var(--ink-soft); }
.prose a { color: var(--turquoise-dark); font-weight: 500; text-decoration: underline; text-underline-offset: 2px; }
.prose a:hover { color: var(--turquoise-deep); }
.prose strong { color: var(--ink); }

/* Fiche d'identité (éditeur / hébergeur) */
.legal-facts {
  display: grid;
  grid-template-columns: minmax(0, 250px) 1fr;
  gap: 0.55rem 1.6rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1.7rem;
  margin-bottom: 1.4rem;
}
.legal-facts dt { font-family: var(--font-display); font-weight: 600; color: var(--ink); }
.legal-facts dd { color: var(--ink-soft); }
@media (max-width: 620px) {
  .legal-facts { grid-template-columns: 1fr; gap: 0.1rem 0; }
  .legal-facts dd { margin-bottom: 0.8rem; }
  .legal-facts dd:last-child { margin-bottom: 0; }
}

/* Marqueur « information à compléter par l'entreprise » */
.legal-todo {
  background: var(--brun-soft);
  color: var(--turquoise-deep);
  padding: 0.05em 0.45em;
  border-radius: 5px;
  font-weight: 600;
  font-size: 0.94em;
}
.legal-updated { font-size: 0.9rem; color: var(--ink-soft); font-style: italic; }

/* -------------------------------------------------------------------------
   12. PROCESSUS (timeline verticale)
   ------------------------------------------------------------------------- */
.timeline { position: relative; display: grid; gap: clamp(1.5rem, 3vw, 2.4rem); }
/* Ligne centrale (bande VHS) */
.timeline::before {
  content: "";
  position: absolute;
  left: 34px; top: 20px; bottom: 20px;
  width: 3px;
  background: repeating-linear-gradient(180deg, var(--turquoise) 0 10px, var(--brun) 10px 16px);
  border-radius: 2px;
}
.step {
  position: relative;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 1.4rem;
  align-items: start;
}
.step__num {
  position: relative;
  z-index: 1;
  width: 70px; height: 70px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--turquoise);
  color: var(--turquoise-dark);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  transition: transform 0.4s var(--ease), background 0.4s var(--ease), color 0.4s var(--ease);
}
.step:hover .step__num { background: var(--turquoise); color: var(--white); transform: scale(1.08); }
.step__body {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.4rem, 2.5vw, 2rem);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.step:hover .step__body { transform: translateX(6px); box-shadow: var(--shadow-card); }
.step__body h3 { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.6rem; }
.step__body h3 svg { color: var(--turquoise); flex: none; }
.step__body p { margin: 0; }

/* -------------------------------------------------------------------------
   13. CONTACT & FORMULAIRE
   ------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: clamp(1.8rem, 4vw, 3rem);
  align-items: start;
}

.field { position: relative; margin-bottom: 1.5rem; }
.field label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}
.field .req { color: var(--turquoise-dark); }
.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--white);
  border: 2px solid var(--line);
  border-radius: 14px;
  padding: 0.85em 1em;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.2s var(--ease);
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--turquoise);
  box-shadow: 0 0 0 4px rgba(30, 132, 127, 0.14);
}
/* micro-animation : léger soulèvement du champ actif */
.field input:focus,
.field textarea:focus { transform: translateY(-2px); }

/* État de validation */
.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid textarea { border-color: #c0392b; box-shadow: 0 0 0 4px rgba(192, 57, 43, 0.12); }
.field.is-valid input,
.field.is-valid select,
.field.is-valid textarea { border-color: var(--turquoise); }
.field__error {
  display: block;
  font-size: 0.85rem;
  color: #c0392b;
  margin-top: 0.4rem;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease);
}
.field.is-invalid .field__error { max-height: 3rem; opacity: 1; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }

.form-submit { position: relative; }
.form-status {
  margin-top: 1.2rem;
  padding: 1rem 1.2rem;
  border-radius: 14px;
  background: rgba(30, 132, 127, 0.1);
  color: var(--turquoise-deep);
  font-weight: 500;
  display: none;
  animation: line-in 0.4s var(--ease);
}
.form-status.is-visible { display: block; }

/* Carte d'informations de contact */
.contact-info {
  background: linear-gradient(160deg, var(--dark-2), var(--dark));
  color: var(--brun-soft);
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 3vw, 2.5rem);
  position: sticky;
  top: 6rem;
  overflow: hidden;
  isolation: isolate;
}
.contact-info::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 4px);
  opacity: 0.5;
}
.contact-info h3 { color: var(--white); margin-bottom: 0.6rem; }
.contact-info > p { color: rgba(244, 220, 196, 0.8); margin-bottom: 1.8rem; }
.contact-line {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--dark-line);
  transition: transform 0.3s var(--ease);
}
.contact-line:hover { transform: translateX(4px); }
.contact-line:last-of-type { border-bottom: none; }
.contact-line .ic {
  width: 46px; height: 46px;
  flex: none;
  display: grid; place-items: center;
  border-radius: 12px;
  background: rgba(43, 167, 159, 0.16);
  color: var(--brun);
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.contact-line:hover .ic { background: var(--brun); color: var(--ink); }
.contact-line .label { font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(244, 220, 196, 0.6); }
.contact-line .value { font-family: var(--font-display); font-weight: 600; color: var(--white); font-size: 1.1rem; }

/* -------------------------------------------------------------------------
   14. PIED DE PAGE
   ------------------------------------------------------------------------- */
.site-footer {
  background: var(--dark);
  color: rgba(244, 220, 196, 0.75);
  padding-block: clamp(3rem, 4vw, 4.5rem) 2rem;
  position: relative;
  isolation: isolate;
}
.site-footer::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: repeating-linear-gradient(0deg, rgba(255,255,255,0.02) 0 1px, transparent 1px 4px);
  opacity: 0.5;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--dark-line);
}
.footer-brand .brand { color: var(--white); margin-bottom: 1rem; }
.footer-brand .brand span { color: var(--brun); }
.footer-brand p { max-width: 34ch; font-size: 0.96rem; }
.footer-col h4 {
  color: var(--brun);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}
.footer-col a, .footer-col li {
  display: block;
  color: rgba(244, 220, 196, 0.78);
  padding: 0.35rem 0;
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
}
.footer-col a:hover { color: var(--brun); transform: translateX(4px); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.6rem;
  font-size: 0.86rem;
  color: rgba(244, 220, 196, 0.55);
}
/* Petits liens légaux discrets en bas de page */
.footer-legal { display: flex; flex-wrap: wrap; gap: 1.4rem; }
.footer-legal a {
  color: rgba(244, 220, 196, 0.6);
  transition: color 0.3s var(--ease);
}
.footer-legal a:hover { color: var(--brun); text-decoration: underline; text-underline-offset: 3px; }

/* -------------------------------------------------------------------------
   15. RESPONSIVE
   ------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .hero { min-height: auto; padding-block: 8rem 4rem; }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; max-width: 380px; margin-inline: auto; }
  .cassette { max-width: 320px; }
  .scroll-hint { display: none; }
  .calculator { grid-template-columns: 1fr; }
  .summary { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-info { position: static; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .feature-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  /* Menu mobile plein écran */
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 1.8rem;
    background: rgba(11, 42, 40, 0.97);
    backdrop-filter: blur(10px);
    transform: translateX(100%);
    transition: transform 0.5s var(--ease);
  }
  .nav.is-open .nav__links { transform: translateX(0); }
  .nav__link { font-size: 1.4rem; }
  /* Dans le menu plein écran (fond sombre), les liens restent clairs même si
     l'en-tête est en mode « défilé » (qui rend normalement le texte foncé). */
  .nav.is-open .nav__link { color: var(--brun-soft); }
  .nav.is-open .nav__link.is-active { color: var(--brun); }
  /* La croix du hamburger reste claire sur l'overlay sombre, quel que soit le défilement. */
  .nav.is-open .nav__toggle span { background: transparent; }
  .nav.is-open .nav__toggle span::before,
  .nav.is-open .nav__toggle span::after { background: var(--brun-soft); }
  .nav__cta { margin-left: 0; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .hero__grid { text-align: center; }
  .hero .btn-group, .hero__stats { justify-content: center; }
  .hero__lead { margin-inline: auto; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .step { grid-template-columns: 56px 1fr; gap: 1rem; }
  .step__num { width: 56px; height: 56px; font-size: 1.2rem; }
  .timeline::before { left: 27px; }
}

/* -------------------------------------------------------------------------
   16. ACCESSIBILITÉ — respect de prefers-reduced-motion
   Toutes les animations décoratives sont neutralisées ; le contenu reste visible.
   ------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .cassette, .hero::before, .reel, .cassette__reel { animation: none !important; }
}

/* Classe utilitaire : masquage visuel accessible (lecteurs d'écran) */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Lien d'évitement (accessibilité clavier) */
.skip-link {
  position: absolute;
  top: -60px; left: 1rem;
  z-index: 2000;
  background: var(--turquoise);
  color: var(--white);
  padding: 0.7em 1.2em;
  border-radius: 0 0 12px 12px;
  font-family: var(--font-display);
  font-weight: 600;
  transition: top 0.3s var(--ease);
}
.skip-link:focus { top: 0; }