/* =========================================
   HEADER
   ========================================= */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height-mobile);
  display: flex;
  align-items: center;
  transition: background var(--transition-slow),
              box-shadow var(--transition-slow),
              height var(--transition-slow);
}

.site-header--transparent {
  background: transparent;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.site-header--scrolled {
  background: var(--color-primary);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.site-header--solid {
  background: var(--color-primary);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-md);
}

/* ---- Logo ---- */
.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  z-index: 10;
}

.header-logo__img {
  height: 30px;
  width: auto;
  display: block;
  transition: opacity var(--transition-base);
}

.header-logo:hover .header-logo__img {
  opacity: 0.88;
}

/* ---- Desktop Nav ---- */
.header-nav {
  display: none;
  flex: 1;
  justify-content: center;
}

/* ---- Branches dropdown ---- */
.has-dropdown {
  position: relative;
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  border: 0.3px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: var(--space-sm);
  min-width: 180px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(-8px);
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  z-index: 200;
}

/* Arrow pointer */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-left: 0.3px solid rgba(255,255,255,0.1);
  border-top: 0.3px solid rgba(255,255,255,0.1);
  rotate: 45deg;
}

.has-dropdown:hover .nav-dropdown,
.has-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown__item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: var(--fw-medium);
  color: rgba(255,255,255,0.75);
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.nav-dropdown__item:hover {
  background: rgba(255,255,255,0.08);
  color: var(--color-white);
}

.nav-dropdown__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
  opacity: 0.7;
}

.nav-dropdown__divider {
  height: 1px;
  background: rgba(255,255,255,0.08);
  margin: 4px 8px;
}

.nav-dropdown__chevron {
  width: 12px;
  height: 12px;
  margin-left: 3px;
  vertical-align: middle;
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.has-dropdown:hover .nav-dropdown__chevron {
  transform: rotate(180deg);
}

.header-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: nowrap;
}

.header-nav__link {
  font-size: 0.8125rem;
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.82);
  letter-spacing: 0.02em;
  position: relative;
  padding-block: 4px;
  transition: color var(--transition-base);
  white-space: nowrap;
}

.header-nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width var(--transition-base);
  border-radius: 1px;
}

.header-nav__link:hover,
.header-nav__link.is-active {
  color: var(--color-white);
}

.header-nav__link:hover::after,
.header-nav__link.is-active::after {
  width: 100%;
}

/* ---- Header Actions ---- */
.header-actions {
  display: none;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
}

.header-call-btn {
  font-size: 0.8125rem;
  padding: 0.5rem 1.125rem;
  border-radius: 5px 0 0 5px;
  color: var(--color-white);
}

.header-call-btn:hover {
  color: var(--color-primary);
}

.header-phone {
  font-size: 0.8125rem;
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.02em;
  white-space: nowrap;
  display: none;
  padding: 0.5rem 1.125rem;
  border: 0.3px solid rgba(255, 255, 255, 1);
  border-left: none;
  border-radius: 0 5px 5px 0;
}

/* ---- Hamburger ---- */
.header-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  z-index: 10;
  flex-shrink: 0;
}

.header-hamburger:hover {
  background: rgba(255, 255, 255, 0.08);
}

.header-hamburger__line {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base),
              opacity var(--transition-base),
              width var(--transition-base);
  transform-origin: center;
}

.header-hamburger.is-open .header-hamburger__line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.header-hamburger.is-open .header-hamburger__line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.header-hamburger.is-open .header-hamburger__line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ---- Mobile Nav Drawer ---- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 999;
  visibility: hidden;
  pointer-events: none;
}

.mobile-nav.is-open {
  visibility: visible;
  pointer-events: auto;
}

.mobile-nav__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.mobile-nav.is-open .mobile-nav__backdrop {
  opacity: 1;
}

.mobile-nav__drawer {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(200px, 58vw);
  background: var(--color-primary);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-nav.is-open .mobile-nav__drawer {
  transform: translateX(0);
}

.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 1.25rem var(--container-padding);
  border-bottom: 0.3px solid rgba(255, 255, 255, 0.08);
  height: var(--header-height-mobile);
  flex-shrink: 0;
}

.mobile-nav__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.mobile-nav__close:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.mobile-nav__list {
  padding: var(--space-lg) var(--container-padding);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex: 1;
}

.mobile-nav__item {
  border-bottom: 0.3px solid rgba(255, 255, 255, 0.06);
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  font-size: 1.0625rem;
  font-weight: var(--fw-medium);
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link.is-active {
  color: var(--color-accent);
}

.mobile-nav__link svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  opacity: 0.5;
  flex-shrink: 0;
}

/* ---- Breakpoints ---- */

/* Tablet: taller header + wider drawer */
@media (min-width: 768px) {
  .site-header {
    height: var(--header-height);
  }

  .header-logo__img {
    height: 46px;
  }

  .mobile-nav__drawer {
    width: min(280px, 55vw);
  }
}

/* Tablet: taller header only */
@media (min-width: 1024px) {
  .site-header {
    height: var(--header-height);
  }
}

/* Desktop: show nav + actions, hide hamburger */
@media (min-width: 1280px) {
  .header-nav {
    display: flex;
  }

  .header-actions {
    display: flex;
  }

  .header-hamburger {
    display: none;
  }

  .header-logo__img {
    height: 50px;
  }

  .header-nav__list {
    gap: var(--space-lg);
  }
}

/* Wide: show phone number */
@media (min-width: 1440px) {
  .header-phone {
    display: block;
  }
}