/* ========================================
   PAHB - Header / Navigation
   ======================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--gradient-header);
  box-shadow: var(--shadow-lg);
  border-bottom: 3px solid var(--color-gold);
  transition: all var(--transition-normal);
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Logo */
.header-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}

@media (max-width: 767px) {
  .header-logo {
    gap: var(--space-lg);
  }
}

.header-logo img {
  height: 52px;
  width: auto;
}

@media (max-width: 767px) {
  .header-logo img {
    height: 46px;
  }
}

.header-logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.68rem;
  line-height: 1;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

@media (min-width: 1024px) {
  .header-logo-text {
    font-size: 0.72rem;
  }
}

/* Sur mobile, on cache le texte "PAHB" pour gagner de la place dans le header */
@media (max-width: 767px) {
  .header-logo-text {
    display: none;
  }
}

/* Navigation desktop */
.nav {
  display: none;
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
  }
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: relative;
  padding: var(--space-sm) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-gold);
  transition: width var(--transition-normal);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--color-gold-light);
}

/* Social icons */
.header-social {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

@media (max-width: 767px) {
  .header-social {
    gap: var(--space-sm);
  }
}

.header-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  transition: all var(--transition-normal);
}

.header-social a:hover {
  background: var(--color-gold);
  color: var(--color-bordeaux);
  transform: scale(1.1);
}

.header-social svg {
  width: 20px;
  height: 20px;
}

/* Hamburger menu */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 7px;
  width: 48px;
  height: 48px;
  padding: 10px;
  color: var(--color-white);
  position: relative;
  z-index: 1001;
  background: rgba(0, 0, 0, 0.15);
  border-radius: 8px;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
  min-width: 48px;
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 4px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-normal);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile menu */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-header);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  z-index: 999;
  overflow-y: auto;
}

.mobile-nav.active {
  transform: translateX(0);
}

@media (min-width: 1024px) {
  .mobile-nav {
    display: none;
  }
}

.mobile-nav .nav-link {
  font-size: 1.25rem;
  padding: var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.2);
}

.mobile-nav .header-social {
  margin-top: auto;
  padding-top: var(--space-xl);
  justify-content: center;
}

/* ===== Menus déroulants (desktop) ===== */
@media (min-width: 1024px) {
  .nav {
    align-items: stretch;
  }

  .nav > .nav-link,
  .nav-parent {
    display: inline-flex;
    align-items: center;
  }

  .nav-item {
    position: relative;
    display: flex;
    align-items: stretch;
  }

  .nav-parent {
    gap: 4px;
  }

  .nav-caret {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-normal);
  }

  .nav-item:hover .nav-caret,
  .nav-item:focus-within .nav-caret {
    transform: rotate(180deg);
  }

  .nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 230px;
    display: flex;
    flex-direction: column;
    padding: var(--space-sm) 0;
    background: var(--color-bordeaux-dark);
    border-top: 3px solid var(--color-gold);
    border-radius: 0 0 10px 10px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
    z-index: 1002;
  }

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

  .nav-dropdown-link {
    padding: var(--space-sm) var(--space-lg);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    transition: background var(--transition-fast), color var(--transition-fast);
  }

  .nav-dropdown-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-gold-light);
  }
}

/* ===== Accordéon du menu mobile ===== */
.mobile-group {
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.mobile-group-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: none;
  cursor: pointer;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.mobile-group-toggle .nav-caret {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
}

.mobile-group.open .mobile-group-toggle .nav-caret {
  transform: rotate(180deg);
}

.mobile-subnav {
  display: none;
  flex-direction: column;
  padding-left: var(--space-lg);
}

.mobile-group.open .mobile-subnav {
  display: flex;
}

.mobile-nav .mobile-subnav .mobile-sublink {
  font-size: 1.05rem;
  padding: var(--space-sm) var(--space-md);
  border-bottom: none;
  color: var(--color-gold-light);
}