/* ==========================================================================
   Mise en page commune : conteneur, sections, en-tête, menu, pied de page
   Styles écrits « mobile d'abord » ; ajustements desktop regroupés dans
   des blocs @media (min-width: 921px).
   ========================================================================== */

/* --- Conteneur et sections ------------------------------------------------- */
.container {
  width: min(100% - 2 * var(--gutter), var(--container));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - 2 * var(--gutter), 760px);
}

.section {
  padding-block: var(--section);
}

.section--sand {
  background: var(--sand);
}

/* En-tête de section : titre + court texte d'introduction */
.section-head {
  display: grid;
  gap: var(--space-s);
  max-width: 40rem;
  margin-bottom: var(--space-2xl);
}

.section-head__title {
  font-size: var(--step-3);
}

.section-head__lead {
  color: var(--ink-soft);
  font-size: var(--step-1);
  line-height: var(--lh-snug);
}

/* --- En-tête ------------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) ease, box-shadow var(--dur) ease;
}

/* Ajouté par main.js dès que la page défile */
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px -20px rgba(34, 56, 58, 0.45);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-m);
  height: var(--header-height);
}

.site-header__logo {
  flex-shrink: 0;
}

.site-header__logo img {
  width: 92px;
}

/* Bouton « burger » (mobile uniquement) */
.menu-toggle {
  display: grid;
  place-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-pill);
  background: none;
  cursor: pointer;
}

.menu-toggle__bar {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--ink);
  transition: transform var(--dur) var(--ease-out), opacity var(--dur-fast) ease;
}

.site-header.is-menu-open .menu-toggle__bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.site-header.is-menu-open .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* Empêche la page de défiler derrière le menu mobile ouvert */
html.has-menu-open {
  overflow: hidden;
}

/* --- Menu principal : version mobile (panneau plein écran) ------------------ */
.main-nav {
  position: fixed;
  inset: var(--header-height) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-l);
  padding: var(--space-l) var(--gutter) var(--space-xl);
  overflow-y: auto;
  background: var(--paper);
  border-top: 1px solid var(--line);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), visibility 0s linear var(--dur);
}

.site-header.is-menu-open .main-nav {
  visibility: visible;
  opacity: 1;
  transform: none;
  transition-delay: 0s;
}

.main-nav__list,
.main-nav__submenu {
  margin: 0;
  padding: 0;
  list-style: none;
}

.main-nav__list > .main-nav__item {
  border-bottom: 1px solid var(--line);
}

.main-nav__link,
.main-nav__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-s) 0;
  border: 0;
  background: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--step-2);
  line-height: var(--lh-snug);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.main-nav__link[aria-current='page'],
.main-nav__item--has-submenu.is-current > .main-nav__toggle {
  color: var(--terra);
}

.main-nav__chevron {
  width: 12px;
  height: 8px;
  color: var(--ink-soft);
  transition: transform var(--dur) var(--ease-out);
}

.main-nav__toggle[aria-expanded='true'] .main-nav__chevron {
  transform: rotate(180deg);
}

.main-nav__submenu {
  display: none;
  padding-bottom: var(--space-s);
}

.main-nav__toggle[aria-expanded='true'] + .main-nav__submenu {
  display: block;
}

.main-nav__submenu .main-nav__link {
  padding: var(--space-2xs) 0 var(--space-2xs) var(--space-s);
  font-family: var(--font-text);
  font-size: var(--step-1);
}

.main-nav__cta {
  align-self: flex-start;
}

/* --- Menu principal : version desktop -------------------------------------- */
@media (min-width: 921px) {
  .site-header__logo img {
    width: 112px;
  }

  .menu-toggle {
    display: none;
  }

  .main-nav,
  .site-header.is-menu-open .main-nav {
    position: static;
    flex-direction: row;
    align-items: center;
    gap: clamp(20px, 2.6vw, 40px);
    padding: 0;
    overflow: visible;
    background: none;
    border: 0;
    visibility: visible;
    opacity: 1;
    transform: none;
    transition: none;
  }

  .main-nav__list {
    display: flex;
    align-items: center;
    gap: clamp(18px, 2.2vw, 32px);
  }

  .main-nav__list > .main-nav__item {
    position: relative;
    border: 0;
  }

  .main-nav__link,
  .main-nav__toggle {
    position: relative;
    gap: 8px;
    width: auto;
    padding: var(--space-2xs) 0;
    font-family: var(--font-text);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.01em;
  }

  /* Soulignement qui se dessine au survol et marque la page courante */
  .main-nav__list > .main-nav__item > .main-nav__link::after,
  .main-nav__toggle::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 2px;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur) var(--ease-out);
  }

  .main-nav__toggle::after {
    right: 20px;
  }

  .main-nav__list > .main-nav__item > .main-nav__link:hover::after,
  .main-nav__list > .main-nav__item > .main-nav__link[aria-current='page']::after,
  .main-nav__item--has-submenu:hover > .main-nav__toggle::after,
  .main-nav__item--has-submenu.is-current > .main-nav__toggle::after {
    transform: scaleX(1);
  }

  .main-nav__link:hover,
  .main-nav__toggle:hover {
    color: var(--teal);
  }

  /* Sous-menu « Soins proposés » : survol, focus clavier ou clic (main.js) */
  .main-nav__submenu {
    display: block;
    position: absolute;
    top: calc(100% + 12px);
    left: -20px;
    z-index: 10;
    min-width: 290px;
    padding: var(--space-xs);
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-m);
    box-shadow: var(--shadow-float);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity var(--dur-fast) ease, transform var(--dur) var(--ease-out), visibility 0s linear var(--dur-fast);
  }

  /* Pont invisible entre le lien et le sous-menu, pour ne pas perdre le survol */
  .main-nav__submenu::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    height: 14px;
  }

  .main-nav__item--has-submenu:hover > .main-nav__submenu,
  .main-nav__item--has-submenu:focus-within > .main-nav__submenu,
  .main-nav__toggle[aria-expanded='true'] + .main-nav__submenu {
    visibility: visible;
    opacity: 1;
    transform: none;
    transition-delay: 0s;
  }

  .main-nav__item--has-submenu:hover .main-nav__chevron {
    transform: rotate(180deg);
  }

  .main-nav__submenu .main-nav__link {
    padding: var(--space-xs) var(--space-s);
    border-radius: var(--radius-s);
    font-size: 1rem;
    font-weight: 400;
    transition: background-color var(--dur-fast) ease, color var(--dur-fast) ease;
  }

  .main-nav__submenu .main-nav__link:hover,
  .main-nav__submenu .main-nav__link[aria-current='page'] {
    background: var(--sand);
  }

  .main-nav__cta {
    align-self: center;
  }
}

/* --- Pied de page ------------------------------------------------------------ */
.site-footer {
  padding-block: var(--space-2xl) var(--space-l);
  background: var(--teal-deep);
  color: var(--mist);
  font-size: var(--step--1);
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--paper);
  text-decoration: underline;
}

.site-footer__inner {
  display: grid;
  gap: var(--space-xl) var(--space-l);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr));
}

.site-footer__brand {
  display: grid;
  gap: var(--space-s);
  align-content: start;
}

/* Logo noir d'origine affiché en clair sur le fond sombre */
.site-footer__logo img {
  width: 110px;
  filter: invert(1) brightness(1.4);
  opacity: 0.92;
}

.site-footer__title {
  margin-bottom: var(--space-s);
  color: var(--paper);
  font-size: var(--step-1);
}

.site-footer__list {
  display: grid;
  gap: var(--space-2xs);
  padding: 0;
  list-style: none;
}

.site-footer__list a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
}

.site-footer__list svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-s) var(--space-l);
  margin-top: var(--space-2xl);
  padding-top: var(--space-m);
  border-top: 1px solid rgba(207, 224, 221, 0.25);
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-m);
  padding: 0;
  list-style: none;
}

@media (min-width: 921px) {
  .site-footer__inner {
    grid-template-columns: 1.4fr repeat(3, 1fr);
  }
}