/* ACOBAS - Header & Navigation */

/* Top Bar */
.top-bar {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--fs-xs);
  height: var(--top-bar-height);
  display: flex;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: calc(var(--z-sticky) + 2);
  transition: transform var(--transition-base);
}

.top-bar.hidden {
  transform: translateY(-100%);
}

.top-bar__inner {
  max-width: var(--container-wide);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar__left,
.top-bar__center,
.top-bar__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.top-bar__left {
  font-weight: var(--fw-medium);
}

.top-bar__center a {
  color: var(--color-text-inverse);
  text-decoration: none;
  font-weight: var(--fw-semibold);
}

.top-bar__center a:hover {
  color: #FFFFFF;
}

.top-bar__right {
  font-weight: var(--fw-medium);
  color: var(--color-text-inverse-muted);
}

@media (max-width: 768px) {
  .top-bar__left,
  .top-bar__right {
    display: none;
  }
  .top-bar__center {
    width: 100%;
    justify-content: center;
  }
}

/* Main Header */
.site-header {
  position: fixed;
  top: var(--top-bar-height);
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: calc(var(--z-sticky) + 1);
  transition: all var(--transition-base);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  height: var(--header-height-scrolled);
  border-bottom-color: var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

/* Transparent hero header (homepage) */
.site-header.header--transparent {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
}

.site-header.header--transparent.scrolled {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header.header--transparent .nav__link {
  color: var(--color-text-inverse);
}

.site-header.header--transparent.scrolled .nav__link {
  color: var(--color-text);
}

.site-header.header--transparent .header__logo-dark {
  display: none;
}

.site-header.header--transparent .header__logo-light {
  display: block;
}

.site-header.header--transparent.scrolled .header__logo-dark {
  display: block;
}

.site-header.header--transparent.scrolled .header__logo-light {
  display: none;
}

.site-header.header--transparent .header__phone {
  color: var(--color-text-inverse);
}

.site-header.header--transparent.scrolled .header__phone {
  color: var(--color-primary);
}

.header__inner {
  max-width: var(--container-wide);
  width: 100%;
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.header__logo {
  flex-shrink: 0;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header__logo-text {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-primary);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
}

.header__logo-light {
  display: none;
}

.header__logo-light .header__logo-text {
  color: var(--color-text-inverse);
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__item {
  position: relative;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--color-primary-light);
}

.nav__link-icon {
  width: 10px;
  height: 10px;
  transition: transform var(--transition-fast);
}

.nav__item:hover .nav__link-icon {
  transform: rotate(180deg);
}

/* Dropdown */
.nav__dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm) 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  border: 1px solid var(--color-border-light);
}

.nav__item:hover .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown a {
  display: block;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--fs-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.nav__dropdown a:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary-light);
  padding-left: calc(var(--space-lg) + 4px);
}

/* Header Right Actions */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header__phone {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-primary);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  text-decoration: none;
}

.header__phone svg {
  width: 18px;
  height: 18px;
}

.header__phone:hover {
  color: var(--color-primary-light);
}

/* Mobile Menu Toggle */
.header__mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  gap: 5px;
}

.header__mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.site-header.header--transparent .header__mobile-toggle span {
  background-color: var(--color-text-inverse);
}

.site-header.header--transparent.scrolled .header__mobile-toggle span {
  background-color: var(--color-primary);
}

.header__mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.header__mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
@media (max-width: 1024px) {
  .header__mobile-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: calc(var(--top-bar-height) + var(--header-height));
    right: 0;
    width: 100%;
    max-width: 400px;
    height: calc(100vh - var(--top-bar-height) - var(--header-height));
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-xl);
    gap: 0;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    box-shadow: var(--shadow-xl);
  }

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

  .nav__link {
    padding: var(--space-md) 0;
    font-size: var(--fs-md);
    color: var(--color-text) !important;
    border-bottom: 1px solid var(--color-border-light);
    justify-content: space-between;
  }

  .nav__dropdown {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    opacity: 1;
    visibility: visible;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    padding: 0;
  }

  .nav__item.dropdown-open .nav__dropdown {
    max-height: 500px;
  }

  .nav__dropdown a {
    padding: var(--space-sm) var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav__item:hover .nav__dropdown {
    transform: none;
  }

  .header__phone {
    display: none;
  }

  .header__actions .btn {
    display: none;
  }

  /* Mobile nav CTA at bottom */
  .nav__mobile-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
  }

  .nav__mobile-cta a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-md);
    color: var(--color-primary);
    text-decoration: none;
    padding: var(--space-md);
  }
}

@media (min-width: 1025px) {
  .nav__mobile-cta {
    display: none;
  }
}

/* Mobile overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: var(--z-sticky);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}