/**
 * Navigation : header, menus, dropdown, burger, mobile menu
 *
 * Architecture :
 * - Header sticky en haut, sur 3 colonnes (menu gauche / logo / menu droite)
 * - Dropdown Portfolio avec fond rgba + backdrop-filter blur (verre teinté)
 * - Toggle thème sombre/clair (slider)
 * - Burger menu visible uniquement < 1024px
 * - Mobile menu fullscreen avec animations
 */

/* ============================================
   HEADER STRUCTURE
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(7, 7, 7, .85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  transition: background-color .35s ease, border-color .35s ease;
}

[data-theme="light"] .site-header {
  background: rgba(242, 235, 222, .9);
  border-bottom-color: var(--line);
}

.site-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-md);
  padding: 18px var(--container-padding);
  max-width: 1600px;
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--accent);
  color: #000;
  padding: 12px 18px;
  z-index: 1000;
}
.skip-link:focus {
  position: absolute;
  top: 12px;
  left: 12px;
  width: auto;
  height: auto;
  clip: auto;
  white-space: normal;
}

/* ============================================
   MENU LISTS
   ============================================ */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.nav-menu--right {
  justify-content: flex-end;
  gap: var(--space-sm);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list li {
  position: relative;
}

.nav-list a {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--fg-2);
  padding: 8px 0;
  position: relative;
  transition: color .25s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-list a:hover,
.nav-list .current-menu-item > a,
.nav-list .current-menu-parent > a {
  color: var(--accent);
}

/* Ligne de surlignage au hover (subtile) */
.nav-list > li > a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width .35s cubic-bezier(.4, 0, .2, 1);
}
.nav-list > li > a:hover::after,
.nav-list .current-menu-item > a::after,
.nav-list .current-menu-parent > a::after {
  width: 100%;
}

/* Caret pour les éléments avec dropdown */
.nav-list .caret {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg);
  margin-left: 4px;
  margin-bottom: 3px;
  transition: transform .3s ease;
}
.nav-dd:hover .caret,
.nav-dd[aria-expanded="true"] .caret {
  transform: rotate(225deg);
  margin-bottom: 0;
}

/* ============================================
   LOGO CENTRAL
   ============================================ */
.nav-logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-logo a {
  display: block;
  width: 46px;
  height: 46px;
  transition: transform .35s ease;
}
.nav-logo a:hover {
  transform: scale(1.05);
}

.logo-eon {
  width: 100%;
  height: 100%;
  display: block;
  transition: opacity .35s ease;
}

/* Par défaut (mode sombre) : on affiche le logo BLANC, on cache le NOIR */
.logo-eon--white {
  display: block;
}
.logo-eon--black {
  display: none;
}

/* En mode clair : on cache le BLANC, on affiche le NOIR */
[data-theme="light"] .logo-eon--white {
  display: none;
}
[data-theme="light"] .logo-eon--black {
  display: block;
}

/* ============================================
   DROPDOWN PORTFOLIO (verre teinté)
   ============================================ */
.nav-dd {
  position: relative;
}

.nav-dd-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 280px;
  padding: 8px;
  margin: 0;
  list-style: none;

  background: rgba(0, 0, 0, .45);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(212, 165, 116, .2);
  border-radius: 4px;

  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .25s ease, visibility .25s ease, transform .25s ease;
  z-index: var(--z-dropdown);
}

[data-theme="light"] .nav-dd-panel {
  background: rgba(255, 255, 255, .85);
  border-color: rgba(168, 112, 47, .25);
}

.nav-dd:hover > .nav-dd-panel,
.nav-dd:focus-within > .nav-dd-panel,
.nav-dd-panel:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dd-panel li {
  margin: 0;
}

.nav-dd-panel a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  color: var(--fg);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  border-radius: 2px;
  transition: background-color .2s ease, color .2s ease;
}

.nav-dd-panel a:hover {
  background: rgba(212, 165, 116, .15);
  color: var(--accent);
}

.nav-dd-panel a::after { display: none !important; } /* annule la ligne de surlignage */

.nav-dd-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(212, 165, 116, .3);
  border-radius: 50%;
  color: var(--accent);
  font-size: 14px;
  flex-shrink: 0;
  /* Transition pour le hover */
  transition: border-color .25s ease, background-color .25s ease, color .25s ease;
}

/* Le SVG à l'intérieur de l'icône */
.nav-dd-icon svg {
  width: 16px;
  height: 16px;
  display: block;
}

/* Hover sur le lien parent → l'icône s'illumine légèrement */
.nav-dd-panel a:hover .nav-dd-icon {
  border-color: var(--accent);
  background-color: rgba(212, 165, 116, .08);
}

/* Variante pour menu items walker (sans bordure ronde, juste l'icône inline) */
.nav-item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-right: 8px;
  color: var(--accent);
  flex-shrink: 0;
  vertical-align: middle;
}

.nav-item-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.nav-dd-panel div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.nav-dd-panel div strong {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 1.5px;
  color: var(--fg);
  margin: 0;
}

.nav-dd-panel div span {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--fg-3);
  text-transform: none;
  margin-top: 2px;
}

/* ============================================
   TOGGLE THÈME SOMBRE / CLAIR
   ============================================ */
.theme-toggle {
  position: relative;
  width: 44px;
  height: 22px;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: 22px;
  cursor: pointer;
  padding: 0;
  transition: background-color .35s ease, border-color .35s ease;
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.theme-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--accent);
  border-radius: 50%;
  transition: transform .35s cubic-bezier(.4, 0, .2, 1);
}

[data-theme="light"] .theme-toggle-thumb {
  transform: translateX(22px);
}

/* ============================================
   BURGER BUTTON (mobile only)
   ============================================ */
.burger-btn {
  display: none; /* caché par défaut, visible mobile via media query */
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  position: relative;
  z-index: calc(var(--z-modal) + 10); /* au-dessus du mobile menu */
}

.burger-bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--fg);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}

.burger-btn.is-open .burger-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.burger-btn.is-open .burger-bar:nth-child(2) {
  opacity: 0;
}
.burger-btn.is-open .burger-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============================================
   MOBILE MENU (fullscreen)
   ============================================ */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: var(--z-modal);

  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 80px var(--container-padding) 40px;

  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
  transition: opacity .4s ease, visibility .4s ease, transform .4s ease;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu-close {
  position: absolute;
  top: 24px;
  right: 20px;
  width: 36px;
  height: 36px;
  display: none; /* caché car le burger fait office de bouton close */
}

.mobile-menu-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.mobile-menu-num {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 500;
}

.mobile-menu-item > a,
.mobile-menu-accordion-trigger {
  font-family: var(--font-display);
  font-size: 36px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--fg);
  flex: 1;
  text-align: left;
  background: none;
  border: none;
  padding: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.mobile-menu-item > a:hover,
.mobile-menu-accordion-trigger:hover {
  color: var(--accent);
}

.mobile-menu-accordion .caret {
  font-family: var(--font-body);
  font-size: 24px;
  font-weight: 300;
  color: var(--accent);
  transition: transform .3s ease;
}

.mobile-menu-accordion.is-open .caret {
  transform: rotate(45deg);
}

.mobile-menu-sublist {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  width: 100%;
}

.mobile-menu-accordion.is-open .mobile-menu-sublist {
  max-height: 200px;
  margin-top: 14px;
}

.mobile-menu-sublist li a {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--fg-2);
  display: block;
  padding: 10px 0;
  padding-left: 20px;
  position: relative;
}

.mobile-menu-sublist li a::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.mobile-menu-sublist li a:hover {
  color: var(--accent);
}

.mobile-menu-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--line);
}

.mobile-menu-social {
  display: flex;
  justify-content: center;
  gap: 28px;
}

.mobile-menu-social a {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  color: var(--fg-2);
  transition: color .25s ease, border-color .25s ease, transform .25s ease;
}

.mobile-menu-social a:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.mobile-menu-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--fg-2);
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color .25s ease;
}

.mobile-menu-theme-toggle:hover {
  border-color: var(--accent);
}

.mobile-menu-theme-toggle .theme-toggle-thumb {
  position: static;
  transform: none;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
}

/* ============================================
   RESPONSIVE — Mobile / Tablette
   ============================================ */
@media (max-width: 1024px) {
  /* Réorganiser la grille de la nav en 2 colonnes sur mobile :
     [LOGO à gauche] [BURGER à droite]
     On supprime la colonne centrale et on met le logo en colonne 1 (gauche),
     le burger en colonne 2 (droite). */
  .site-nav {
    grid-template-columns: auto 1fr;
    padding: 14px var(--container-padding);
    align-items: center;
  }

  /* Le menu gauche disparaît complètement */
  .nav-menu--left {
    display: none;
  }

  /* Le logo passe en colonne 1, aligné à gauche */
  .nav-logo {
    grid-column: 1;
    justify-self: start;
  }

  /* Le menu droite passe en colonne 2, aligné à droite */
  .nav-menu--right {
    grid-column: 2;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0;
    justify-self: end;
  }

  /* Cache les liens du menu droite (Portfolio, Avis, Contact) */
  .nav-menu--right .nav-list {
    display: none;
  }

  /* Cache aussi le toggle thème (déjà dans le menu mobile) */
  .nav-menu--right .theme-toggle {
    display: none;
  }

  /* Le burger apparaît, bien à droite */
  .burger-btn {
    display: inline-flex;
  }

  /* Affichage de la croix de fermeture dans le menu mobile ouvert */
  .mobile-menu-close {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 18px;
    right: var(--container-padding);
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid var(--line-2);
    border-radius: 50%;
    cursor: pointer;
    z-index: calc(var(--z-modal) + 5);
    transition: border-color .25s ease, transform .25s ease;
  }

  .mobile-menu-close:hover {
    border-color: var(--accent);
    transform: rotate(90deg);
  }

  /* Les 2 traits qui forment la croix */
  .mobile-menu-close span {
    position: absolute;
    width: 20px;
    height: 1.5px;
    background: var(--fg);
    border-radius: 1px;
  }
  .mobile-menu-close span:nth-child(1) {
    transform: rotate(45deg);
  }
  .mobile-menu-close span:nth-child(2) {
    transform: rotate(-45deg);
  }
}

@media (min-width: 1025px) {
  .mobile-menu {
    display: none !important; /* mobile menu jamais visible sur desktop */
  }
}