/* =============================================================
   HEADER — SD Électricité
   ============================================================= */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-white);
  box-shadow: 0 1px 0 var(--color-gray-mid);
  transition: box-shadow var(--transition-fast);
}
.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.10);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-lg);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.site-logo__img {
  height: 64px;
  width: auto;
}
.site-logo__text {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-blue-dark);
  line-height: 1;
}
.site-logo__text span {
  color: var(--color-orange);
}

/* Navigation desktop */
.main-nav {
  display: none;
  flex: 1;
  justify-content: center;
}
.main-nav ul {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-dark);
  transition: color var(--transition-fast);
  position: relative;
  padding-bottom: 2px;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-blue);
  transition: width var(--transition-fast);
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--color-blue);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

/* CTA header */
.header-cta {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-orange);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.header-phone:hover { color: var(--color-blue-dark); }
.header-phone svg { color: var(--color-orange); }

/* Menu burger */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}
.menu-toggle:hover { background: var(--color-gray-light); }
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Numéro mobile en header */
.header-phone-mobile {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-orange);
  text-decoration: none;
}

/* Menu mobile overlay */
.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 999;
  padding: var(--space-lg) var(--container-px);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transform: translateX(100%);
  transition: transform var(--transition-mid);
}
.mobile-menu.open {
  transform: translateX(0);
}
.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-menu a {
  display: block;
  font-size: 20px;
  font-weight: 600;
  font-family: var(--font-heading);
  color: var(--color-dark);
  padding: 14px 0;
  border-bottom: 1px solid var(--color-gray-mid);
  transition: color var(--transition-fast);
}
.mobile-menu a:hover { color: var(--color-blue); }
.mobile-menu .mobile-cta {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Sticky CTA mobile (bas d'écran) */
.sticky-call {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 998;
  background: var(--color-orange);
  color: var(--color-white);
  text-decoration: none;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 56px;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 -4px 20px rgba(244, 123, 32, 0.3);
  transition: background var(--transition-fast);
}
.sticky-call:hover { background: #d96b14; color: var(--color-white); }

/* Responsive desktop */
@media (min-width: 768px) {
  .main-nav { display: flex; }
  .header-cta { display: flex; }
  .menu-toggle { display: none; }
  .header-phone-mobile { display: none; }
  .sticky-call { display: none; }
}