/**
 * Header & Navigation Styles - Green Marble AF Properties
 *
 * Top bar, main header, desktop navigation, dropdowns,
 * mobile menu, hamburger toggle, and scroll progress bar.
 *
 * @package GMAP_Theme
 */

/* ==========================================================================
   Scroll Progress Bar
   ========================================================================== */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--color-accent);
  z-index: 9999;
  transition: none;
}

/* ==========================================================================
   Top Bar
   ========================================================================== */

.top-bar {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  font-size: 0.85rem;
  line-height: 1;
}

.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
}

.top-bar__left {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.top-bar__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-white);
  transition: opacity var(--transition-fast);
}

.top-bar__item:hover,
.top-bar__item:focus {
  color: var(--color-white);
  opacity: 0.8;
}

.top-bar__item svg {
  flex-shrink: 0;
}

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

.top-bar__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: opacity var(--transition-fast);
}

.top-bar__social:hover,
.top-bar__social:focus {
  color: var(--color-white);
  opacity: 0.7;
}

.top-bar__social svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   Main Header
   ========================================================================== */

.header {
  position: fixed;
  top: 40px; /* below top bar */
  left: 0;
  width: 100%;
  z-index: var(--z-fixed);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition:
    background-color var(--transition-normal),
    box-shadow var(--transition-normal),
    padding var(--transition-normal),
    top var(--transition-normal);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Scrolled state - header shrinks and shadow strengthens */
.header.scrolled {
  top: 0;
  box-shadow: var(--shadow-md);
}

.header.scrolled .header__inner {
  height: 65px;
}

/* Homepage transparent header */
body.home .header:not(.scrolled) {
  background-color: transparent;
  box-shadow: none;
}

body.home .header:not(.scrolled) .nav-menu__link,
body.home .header:not(.scrolled) .header__logo-text,
body.home .header:not(.scrolled) .logo-green,
body.home .header:not(.scrolled) .logo-properties {
  color: var(--color-white);
}

body.home .header:not(.scrolled) .logo-af {
  color: var(--color-accent);
}

body.home .header:not(.scrolled) .nav-menu__chevron {
  stroke: var(--color-white);
}

body.home .header:not(.scrolled) .hamburger__line {
  background-color: var(--color-white);
}

body.home .header:not(.scrolled) .header__cta {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

body.home .header:not(.scrolled) .header__cta:hover {
  background-color: #e67e00;
  border-color: #e67e00;
}

/* ==========================================================================
   Logo
   ========================================================================== */

.header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.header__logo a {
  display: flex;
  align-items: center;
  height: 100%;
}

.header__logo-text {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  line-height: 1;
  white-space: nowrap;
}

.logo-green {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

.logo-af {
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
}

.logo-properties {
  color: var(--color-dark-gray);
  font-weight: var(--font-weight-medium);
}

/* Custom logo image */
.header__logo .custom-logo-link {
  display: block;
}

.header__logo .custom-logo {
  height: 50px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

.header.scrolled .header__logo .custom-logo {
  height: 40px;
}

/* Dual logo system: light logo for transparent header, dark logo for sticky */
.header__logo-link {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 10px 0;
  box-sizing: border-box;
}

.header__logo-img {
  height: 100%;
  width: auto;
  max-width: 220px;
  max-height: 100px;
  object-fit: contain;
}

.header.scrolled .header__logo-img {
  max-height: 100px;
}

/* Default: show dark logo, hide light logo */
.header__logo-img--light {
  display: none;
}

.header__logo-img--dark {
  display: block;
}

/* Homepage transparent header: show light logo, hide dark logo */
body.home .header:not(.scrolled) .header__logo-img--light {
  display: block;
}

body.home .header:not(.scrolled) .header__logo-img--dark {
  display: none;
}

/* ==========================================================================
   Desktop Navigation
   ========================================================================== */

.header__nav {
  display: none;
}

@media (min-width: 993px) {
  .header__nav {
    display: block;
  }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu__item {
  position: relative;
}

.nav-menu__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-dark-gray);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-menu__link:hover,
.nav-menu__link:focus {
  color: var(--color-primary);
}

.nav-menu__link:hover::after,
.nav-menu__link:focus::after {
  width: 100%;
}

/* Active / current page */
.nav-menu__item.current .nav-menu__link,
.nav-menu__item.current-menu-item > .nav-menu__link,
.nav-menu__item.current-menu-ancestor > .nav-menu__link {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.nav-menu__item.current .nav-menu__link::after,
.nav-menu__item.current-menu-item > .nav-menu__link::after,
.nav-menu__item.current-menu-ancestor > .nav-menu__link::after {
  width: 100%;
}

.nav-menu__chevron {
  transition: transform var(--transition-fast);
  margin-left: 2px;
}

.nav-menu__item--has-children:hover .nav-menu__chevron {
  transform: rotate(180deg);
}

/* ==========================================================================
   Desktop Dropdowns
   ========================================================================== */

.nav-menu__dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 220px;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 12px 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-normal),
    transform var(--transition-normal),
    visibility var(--transition-normal);
  z-index: var(--z-dropdown);
}

/* Invisible hit area to bridge the gap between link and dropdown */
.nav-menu__dropdown::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  width: 100%;
  height: 12px;
}

.nav-menu__item--has-children:hover > .nav-menu__dropdown,
.nav-menu__item--has-children:focus-within > .nav-menu__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-menu__dropdown li a {
  display: block;
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: var(--font-weight-regular);
  color: var(--color-dark-gray);
  white-space: nowrap;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.nav-menu__dropdown li a:hover,
.nav-menu__dropdown li a:focus {
  background-color: var(--color-green-light);
  color: var(--color-primary);
}

/* ==========================================================================
   Header Actions
   ========================================================================== */

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-shrink: 0;
}

.header__cta {
  display: none;
}

@media (min-width: 993px) {
  .header__cta {
    display: inline-flex;
  }
}

/* ==========================================================================
   Hamburger Toggle
   ========================================================================== */

.header__menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

@media (min-width: 993px) {
  .header__menu-toggle {
    display: none;
  }
}

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 24px;
  height: 18px;
  position: relative;
}

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

/* Active hamburger -> X */
.header__menu-toggle.active .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__menu-toggle.active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.header__menu-toggle.active .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Mobile Menu
   ========================================================================== */

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 400px;
  height: 100vh;
  height: 100dvh;
  background-color: var(--color-white);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  transition: right 0.4s var(--ease-smooth);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-menu.active {
  right: 0;
}

/* Mobile Menu Header */
.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.mobile-menu__header .header__logo-text {
  font-size: 1.25rem;
}

.mobile-menu__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-dark-gray);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.mobile-menu__close:hover {
  background-color: var(--color-background);
}

/* Mobile Menu Navigation */
.mobile-menu__nav {
  flex: 1;
  padding: var(--space-md) 0;
  overflow-y: auto;
}

.mobile-menu__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-menu__item {
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu__item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-menu__link {
  display: block;
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-dark-gray);
  transition: color var(--transition-fast);
}

.mobile-menu__link:hover,
.mobile-menu__link:focus {
  color: var(--color-primary);
}

/* Accordion Toggle */
.mobile-menu__accordion-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  background: none;
  border: none;
  border-left: 1px solid var(--color-border);
  cursor: pointer;
  color: var(--color-medium-gray);
  transition: color var(--transition-fast);
  flex-shrink: 0;
}

.mobile-menu__accordion-toggle:hover {
  color: var(--color-primary);
}

.mobile-menu__accordion-toggle svg {
  transition: transform var(--transition-normal);
}

.mobile-menu__accordion-toggle.active svg {
  transform: rotate(180deg);
}

/* Submenu Accordion */
.mobile-menu__submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease-smooth);
  background-color: var(--color-background);
}

.mobile-menu__submenu.active {
  max-height: 500px;
}

.mobile-menu__submenu li a {
  display: block;
  padding: 10px var(--space-lg) 10px var(--space-2xl);
  font-size: 0.9rem;
  color: var(--color-medium-gray);
  transition: color var(--transition-fast);
}

.mobile-menu__submenu li a:hover,
.mobile-menu__submenu li a:focus {
  color: var(--color-primary);
}

/* Mobile CTA */
.mobile-menu__cta {
  padding: var(--space-lg);
}

.mobile-menu__cta-btn {
  width: 100%;
  text-align: center;
  justify-content: center;
}

/* Mobile Menu Footer */
.mobile-menu__footer {
  padding: var(--space-lg);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.mobile-menu__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: 0.875rem;
  color: var(--color-medium-gray);
  transition: color var(--transition-fast);
}

.mobile-menu__contact-item:hover,
.mobile-menu__contact-item:focus {
  color: var(--color-primary);
}

.mobile-menu__contact-item svg {
  flex-shrink: 0;
}

.mobile-menu__social {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.mobile-menu__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--color-background);
  color: var(--color-medium-gray);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.mobile-menu__social-link:hover,
.mobile-menu__social-link:focus {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Mobile Overlay */
.mobile-menu__overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--transition-normal),
    visibility var(--transition-normal);
}

.mobile-menu__overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Prevent body scroll when mobile menu is open */
body.menu-open {
  overflow: hidden;
}

/* ==========================================================================
   Responsive - Tablet and below (max-width: 992px)
   ========================================================================== */

@media (max-width: 992px) {
  .header__inner {
    height: 65px;
  }

  .header__logo-text {
    font-size: 1.25rem;
  }
  
  .header__logo-img {
    max-height: 100px;
  }
  
  .header.scrolled .header__logo-img {
    max-height: 100px;
  }

  /*
   * On tablet and mobile the hamburger menu is visible, so the homepage
   * transparent-header mode must be disabled. Without this override the
   * header has no background and white hamburger lines, which can become
   * invisible against a light or slow-to-load hero image.
   */
  body.home .header:not(.scrolled) {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
  }

  body.home .header:not(.scrolled) .header__logo-text,
  body.home .header:not(.scrolled) .logo-green,
  body.home .header:not(.scrolled) .logo-properties {
    color: inherit;
  }

  body.home .header:not(.scrolled) .logo-green {
    color: var(--color-primary);
  }

  body.home .header:not(.scrolled) .logo-af {
    color: var(--color-accent);
  }

  body.home .header:not(.scrolled) .logo-properties {
    color: var(--color-dark-gray);
  }

  body.home .header:not(.scrolled) .hamburger__line {
    background-color: var(--color-dark-gray);
  }

  /* On mobile/tablet, always show dark logo (header is always white) */
  body.home .header:not(.scrolled) .header__logo-img--light {
    display: none;
  }

  body.home .header:not(.scrolled) .header__logo-img--dark {
    display: block;
  }
}

/* ==========================================================================
   Responsive - Mobile (max-width: 767px)
   ========================================================================== */

@media (max-width: 767px) {
  .top-bar {
    display: none;
  }

  .header {
    top: 0;
  }

  .header__inner {
    height: 60px;
  }

  .header__logo-text {
    font-size: 1.125rem;
  }

  .header__logo .custom-logo {
    height: 35px;
  }
  
  .header .header__logo-img {
    max-height: 100px;
  }
  
  .header.scrolled .header__logo-img {
    max-height: 100px;
  }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .scroll-progress,
  .mobile-menu,
  .mobile-menu__overlay,
  .mobile-menu__submenu,
  .nav-menu__dropdown,
  .hamburger__line,
  .nav-menu__link::after,
  .mobile-menu__accordion-toggle svg {
    transition: none;
  }
}