/* /css/layout.css */
/* ============================================================
   LAYOUT — Header & Footer
   ============================================================ */

/* === HEADER === */
.header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: transparent;
  border-bottom: none;
  transition: transform .4s var(--ease-impeccable), filter 0.35s var(--ease-impeccable);
  will-change: transform, filter;

  /* Double drop-shadow premium constant (sans transparence) */
  filter: drop-shadow(0 6px 16px rgba(17, 17, 17, 0.05));
}

/* Scrolled state shadow transition */
.header.header--scrolled {
  filter: drop-shadow(0 12px 32px rgba(17, 17, 17, 0.08))
          drop-shadow(0 4px 8px rgba(17, 17, 17, 0.04));
}

.header.is-hidden {
  transform: translateY(-110%);
}

.header__deco {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  height: 125%; /* Dépasse légèrement (125%) pour un effet de débordement artistique haut de gamme */
  width: 360px; /* Largeur maximale augmentée */
  pointer-events: none; /* Ne bloque aucun clic sur le menu ou logo */
  z-index: 1; /* Derrière le contenu (z-index 5) */
  opacity: 0.8; /* Opacité adoucie pour un effet filigrane élégant */
  object-fit: contain; /* Évite tout rognage */
  transition: opacity 0.35s var(--ease-impeccable);
}

.header__deco--left {
  left: 0; /* Tout à gauche */
  height: 100%; /* Ne dépasse pas de la barre de navigation */
  object-position: center;
  object-fit: cover;
  border-radius: 0 0 180px 0 / 0 0 100% 0; /* Arrondi uniquement en bas à droite, balayant jusqu'au haut de la navbar */
  box-shadow: var(--shadow-md);
  -webkit-mask-image: linear-gradient(135deg, black 45%, transparent 90%);
  mask-image: linear-gradient(135deg, black 45%, transparent 90%);
}

.header__deco--right {
  right: 0; /* Tout à droite */
  height: 100%; /* Ne dépasse pas de la barre de navigation */
  object-position: center;
  object-fit: cover;
  border-radius: 180px 0 0 0 / 100% 0 0 0; /* Arrondi uniquement en haut à gauche, balayant jusqu'au bas de la navbar */
  box-shadow: var(--shadow-md);
  -webkit-mask-image: linear-gradient(-45deg, black 45%, transparent 90%);
  mask-image: linear-gradient(-45deg, black 45%, transparent 90%);
}

@media (max-width: 64em) {
  .header__deco {
    display: none; /* Masqué sur tablette/mobile pour libérer l'espace */
  }
}

.header__inner {
  position: relative;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-h);
  background: var(--white); /* Solid background, no transparency */
}

.header__action {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
}

/* Logo */
.logo {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  place-items: center;
  transition: transform 0.4s var(--ease-impeccable);
}

.logo:hover {
  transform: scale(1.02);
}

.logo:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
  border-radius: var(--rounded-sm, 4px);
}

/* Format Desktop (Classic Nav Bar) */
@media (min-width: 64.0625em) {
  :root {
    --header-h: 120px; /* Agrandit le header sur desktop pour donner plus d'importance au logo */
  }

  .header {
    background: var(--champagne-cream);
    border-bottom: 1px solid var(--grey-100);
  }

  .header__inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    border-radius: 0;
    padding: 0 var(--space-md);
    background: transparent; /* Permet de voir le fond champagne-cream de .header */
  }

  .header__inner::before,
  .header__inner::after {
    content: none;
  }

  /* Style Rosé pour le bouton Contact */
  .header__inner .header__cta {
    background: var(--red-light);
    color: var(--red);
    border-color: var(--red-light);
    border-radius: 9999px; /* Forme capsule/pilule parfaite */
  }

  .header__inner .header__cta:hover {
    background: var(--red);
    color: var(--white);
    border-color: var(--red);
  }

  /* Scrolled state for desktop (height constant, no border-radius shift) */
  .header.header--scrolled .header__inner {
    border-radius: 0;
  }

  .header__inner .logo {
    position: static;
    transform: none;
    grid-column: 2;
    z-index: 10;
  }

  .header__col--left {
    grid-column: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding-right: var(--space-lg);
  }

  .header__col--right {
    grid-column: 3;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding-left: var(--space-lg);
  }
}

.logo__img {
  grid-column: 1;
  grid-row: 1;
  height: 112px; /* Sized to fit inside 120px header with minimal padding */
  width: auto;
  display: block;
  object-fit: contain;
}

/* Desktop nav */
.nav {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0;
}

.nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 20px;
  font-size: 14px;
  font-weight: var(--fw-bold);
  color: var(--grey-800);
  text-transform: none;
  letter-spacing: -0.01em;
  transition: color .3s var(--ease-impeccable);
  opacity: 1;
}

.nav a::before {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%) scaleX(1);
  width: 20px;
  height: 2px;
  background-color: var(--red);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-impeccable), background-color 0.3s var(--ease-impeccable);
}

.nav a::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 18px;
  background-color: var(--champagne-gold-light);
  opacity: 0.8;
}

.nav a:not(.btn):hover {
  color: var(--red);
}

.nav a:not(.btn):hover::before {
  transform: translateX(-50%) scaleX(1.3);
  background-color: var(--red-dark);
}

.nav a:focus-visible {
  color: var(--red);
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

.nav a:focus-visible::before {
  transform: translateX(-50%) scaleX(1.3);
  background-color: var(--red-dark);
}

.nav a.is-active {
  color: var(--red);
}

.nav a.is-active::before {
  transform: translateX(-50%) scaleX(1.3);
  background-color: var(--red-dark);
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: background .2s;
}

.burger:hover {
  background: var(--grey-100);
}

.burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--grey-800);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
  transform-origin: center;
}

.burger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger.is-open span:nth-child(2) {
  opacity: 0;
}

.burger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Masquer le menu mobile par défaut sur Desktop */
.nav-mobile {
  display: none;
}

/* Format Tablet/Mobile (Capsule flottante & Drawer solide) */
@media (max-width: 64em) {
  :root {
    --header-h: 90px;
  }

  .header {
    margin-top: 0;
    top: 0;
    filter: none;
    background: var(--champagne-cream); /* Fond or champagne */
    border-bottom: 1px solid var(--grey-100); /* Bordure classique */
  }

  .header__inner {
    width: 100% !important; /* Pleine largeur classique */
    margin: 0; /* Pas de marge capsule */
    border-radius: 0; /* Pas d'arrondis capsule */
    height: var(--header-h);
    padding: 0 var(--space-md);
    background: transparent;
    border: none;
    box-shadow: none;
  }

  .header__col--left {
    display: none;
  }

  .header__col--right {
    display: contents;
  }

  .header__inner .logo {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }

  .logo__img {
    height: 84px;
  }

  .header__action {
    position: absolute;
    right: var(--space-md); /* Aligné sur le padding de header__inner */
    top: 50%;
    transform: translateY(-50%);
  }

  .header__cta {
    display: none;
  }

  .nav {
    display: none;
  }

  .burger {
    display: flex;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    padding: 8px;
  }

  .burger span {
    background: var(--grey-800) !important;
  }

  /* Mobile drawer comme un menu déroulant classique sous le header */
  .nav-mobile {
    position: fixed;
    top: var(--header-h); /* Aligné sous le header */
    left: 0;
    width: 100%; /* Pleine largeur */
    background: var(--champagne-cream); /* Fond or champagne assorti */
    border-bottom: 1px solid var(--grey-100);
    border-radius: 0; /* Pas d'arrondis capsule */
    box-shadow: 0 10px 30px oklch(from var(--black) l c h / 0.05); /* Ombre douce sous le menu */
    z-index: 199;
    display: flex !important;
    flex-direction: column;
    padding: var(--space-sm) 0;
    opacity: 0;
    transform: translateY(-8px);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.35s var(--ease-impeccable), opacity 0.35s var(--ease-impeccable), visibility 0.35s;
  }

  .nav-mobile.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    padding: var(--space-sm) 0;
  }

  .nav-mobile__link {
    display: block;
    padding: var(--space-sm) var(--space-md);
    font-size: 15px;
    font-weight: 600;
    color: var(--grey-800);
    text-align: center; /* Centrage des éléments dans le menu mobile */
    transition: background .15s, color .15s;
    border-radius: 8px;
    margin: 0 var(--space-xs);
  }

  .nav-mobile__link:hover {
    background: oklch(from var(--red) l c h / 0.05);
    color: var(--red);
  }

  .nav-mobile__link--cta {
    margin: var(--space-xs) var(--space-sm) 0;
    padding: 12px var(--space-md);
    background: var(--red);
    color: var(--white);
    border-radius: 12px;
    text-align: center;
    font-weight: var(--fw-semibold);
  }

  .nav-mobile__link--cta:hover {
    background: var(--red-dark);
    color: var(--white);
  }
}

/* === FOOTER === */
.footer {
  background: var(--black);
  color: oklch(from var(--white) l c h / 0.55);
  padding: 60px 0 0;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid oklch(from var(--white) l c h / 0.08);
}

.footer__logo {
  display: flex;
  justify-content: flex-start;
  width: fit-content;
}

.footer__logo-img {
  height: 90px;
  width: auto;
  display: block;
  transform: translateX(-8px);
}

.footer__brand p {
  font-size: 14px;
  margin-top: var(--space-sm);
  max-width: 240px;
  line-height: 1.7;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-title {
  font-size: 12px;
  font-weight: var(--fw-bold);
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-bottom: 4px;
}

.footer__links a {
  font-size: 14px;
  transition: color .2s;
}

.footer__links a:hover {
  color: var(--white);
}

.footer__socials {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
}

.footer__social {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: var(--fw-semibold);
  color: oklch(from var(--white) l c h / 0.6);
  transition: color .2s;
}

.footer__social:hover {
  color: var(--white);
}

.footer__bottom {
  padding: 20px 0;
}

.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

/* === RESPONSIVE LAYOUT === */

@media (max-width: 64em) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 48em) {

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px 16px;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  .footer__bottom .container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 30em) {

  /* Footer stack on small mobile */
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* === HERO OVERRIDES FOR CLASSIC STICKY HEADER === */
.hero {
  margin-top: calc(-1 * var(--header-h));
  padding-top: calc(150px + var(--header-h)) !important; /* Base padding 150px + header */
}

@media (max-width: 64em) {
  .hero {
    margin-top: -114px; /* 16px marge top + 98px header */
    padding-top: calc(40px + 114px) !important;
  }
}

@media (min-width: 75em) {
  .hero {
    margin-top: calc(-1 * var(--header-h));
    padding-top: calc(180px + var(--header-h)) !important;
  }
}

@media (min-width: 100em) {
  .hero {
    margin-top: calc(-1 * var(--header-h));
    padding-top: calc(210px + var(--header-h)) !important;
  }
}

@media (min-width: 156.25em) {
  .hero {
    margin-top: calc(-1 * var(--header-h));
    padding-top: calc(250px + var(--header-h)) !important;
  }
}

/* Calibrations pour petits ecrans en hauteur (1080p, ordinateurs portables) */
@media (min-width: 64em) and (max-height: 1000px) {
  .hero {
    padding-top: calc(100px + var(--header-h)) !important;
    padding-bottom: 100px !important;
  }

  .hero__logo {
    margin-bottom: 16px;
  }

  .hero__eyebrow {
    margin-bottom: 16px;
  }

  .hero__title {
    margin-bottom: 24px;
  }

  .hero__cta {
    margin-bottom: 40px;
  }
}

/* === LEGAL HERO OVERRIDES FOR CLASSIC STICKY HEADER === */
.legal-hero {
  margin-top: calc(-1 * var(--header-h));
  padding-top: calc(80px + var(--header-h)) !important; /* Base padding 80px + header */
}

@media (max-width: 64em) {
  .legal-hero {
    margin-top: -114px; /* 16px marge top + 98px header */
    padding-top: calc(40px + 114px) !important;
  }
}

/* --- Support anime.js --- */
.has-anime .header {
  transition: transform 0.35s var(--ease-impeccable), box-shadow 0.35s var(--ease-impeccable) !important;
}

.has-anime .nav-mobile,
.has-anime .nav-mobile__link,
.has-anime [data-animate],
.has-anime [data-stagger]>* {
  transition: none !important;
}

/* --- Bouton Retour en Haut (Back to Top) --- */
.back-to-top {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: oklch(from var(--white) l c h / 0.90);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid oklch(from var(--black) l c h / 0.08);
  color: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.4s var(--ease-impeccable),
    visibility 0.4s,
    transform 0.4s var(--ease-impeccable),
    background-color 0.3s ease,
    color 0.3s ease,
    box-shadow 0.3s ease;
}

.back-to-top svg {
  transition: transform 0.3s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.back-to-top:hover svg {
  transform: translateY(-2px);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 4px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .back-to-top {
    transition: opacity 0.2s ease, visibility 0.2s;
    transform: none !important;
  }

  .back-to-top:hover {
    transform: none !important;
  }

  .back-to-top:hover svg {
    transform: none !important;
  }
}

/* === SECTION OVERLAP SCROLL OVER THE HERO === */
.trust-bar,
.section,
.section--split,
.services-section,
.footer {
  position: relative;
  z-index: 10;
  will-change: transform; /* Force la création de calques GPU pour éviter la réapparition du Hero lors d'un scroll rapide */
}