/* ============================================================
   A1: Header & Navigation Component
   Baan Khanitha Website Redesign
   ============================================================ */

/* Top Utility Bar (Contact & Languages) */
.header-top-bar {
  background-color: #FAF8F5;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  padding: 6px 0;
  transition: all var(--transition-smooth);
}

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

.top-bar-contacts {
  display: flex;
  align-items: center;
  gap: 20px;
}

.top-contact-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #333333;
  font-weight: 400;
  font-family: var(--font-thai);
  transition: color var(--transition-fast);
}

.top-contact-link svg {
  width: 14px;
  height: 14px;
  fill: var(--color-gold);
}

.top-contact-link:hover {
  color: var(--color-primary);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Switcher in Top Bar */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #000000;
}

.lang-btn {
  color: #666666;
  padding: 2px 4px;
  transition: color var(--transition-fast);
  text-transform: uppercase;
}

.lang-btn.active {
  color: #000000;
  font-weight: 700;
  position: relative;
}

.lang-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 4px;
  right: 4px;
  height: 2px;
  background-color: var(--color-gold);
}

.lang-btn:hover:not(.active) {
  color: var(--color-gold);
}

.lang-divider {
  color: #cccccc;
}

/* Main Header Container */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-bg-white);
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-smooth);
}

.site-header.scrolled {
  box-shadow: var(--shadow-medium);
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
}

.site-header.scrolled .header-main {
  height: var(--header-height-scrolled);
}

.header-main {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: height var(--transition-smooth);
}

/* Brand Logo */
.header-brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-logo {
  height: 60px;
  width: auto;
  transition: transform var(--transition-smooth);
}

.site-header.scrolled .header-logo {
  height: 50px;
}

/* Desktop Navigation Menu */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-main); /* Black font color as requested */
  padding: 10px 4px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-gold);
  transition: width var(--transition-smooth);
}

.nav-link:hover,
.nav-link.active,
.nav-item:hover > .nav-link {
  color: #000000;
}

.nav-link:hover::after,
.nav-link.active::after,
.nav-item:hover > .nav-link::after {
  width: 100%;
}

.nav-arrow {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  margin-top: -3px;
  margin-left: 2px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-arrow {
  transform: rotate(-135deg);
  margin-top: 3px;
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 300px;
  background-color: var(--color-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  padding: 10px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition-smooth);
  z-index: 100;
}

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

.dropdown-link {
  display: block;
  font-family: var(--font-serif);
  font-size: 0.98rem;
  font-weight: 500;
  color: #222222;
  padding: 9px 20px;
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  background-color: #FAF6EF;
  color: var(--color-primary);
  padding-left: 24px;
}

.dropdown-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--color-gold);
  color: #fff;
  margin-left: 6px;
  vertical-align: middle;
}

/* Reservation Action Button (#272B64) */
.btn-reservation {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #272B64;       /* Requested #272B64 */
  color: #ffffff;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(39, 43, 100, 0.25);
  transition: all var(--transition-smooth);
  white-space: nowrap;
}

.btn-reservation:hover {
  background-color: #1b1e48;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(39, 43, 100, 0.35);
}

.btn-reservation:active {
  transform: translateY(0);
}

/* Mobile Hamburger Toggle */
.mobile-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 32px;
  padding: 4px;
  background: transparent;
  z-index: 1100;
}

.mobile-toggle-bar {
  width: 100%;
  height: 2px;
  background-color: #000000;
  border-radius: 2px;
  transition: all var(--transition-smooth);
}

.mobile-toggle-btn.open .mobile-toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-toggle-btn.open .mobile-toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-toggle-btn.open .mobile-toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Drawer Overlay */
.mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
  z-index: 1050;
}

.mobile-drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 86%;
  max-width: 380px;
  height: 100%;
  background-color: var(--color-bg-white);
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.15);
  z-index: 1060;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateX(0);
}

.mobile-drawer-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-drawer-body {
  padding: 20px 24px;
  flex-grow: 1;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-item {
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.mobile-nav-link {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: #000000;
  padding: 12px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-gold);
}

.mobile-accordion-toggle {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #f0ece3;
  color: #000000;
  font-size: 0.8rem;
  transition: transform var(--transition-smooth);
}

.mobile-nav-item.open .mobile-accordion-toggle {
  transform: rotate(180deg);
  background: var(--color-primary);
  color: #ffffff;
}

.mobile-submenu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding-left: 12px;
}

.mobile-nav-item.open .mobile-submenu {
  max-height: 400px;
  margin-bottom: 10px;
}

.mobile-sublink {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: #444444;
  padding: 8px 0;
}

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

.mobile-drawer-footer {
  padding: 20px 24px;
  background-color: #FAF8F5;
  border-top: 1px solid var(--color-border);
}

.mobile-quick-contacts {
  display: flex;
  justify-content: space-around;
  margin-bottom: 16px;
}

.mobile-contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: #ffffff;
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: #111111;
  font-weight: 500;
}

.mobile-contact-pill svg {
  width: 15px;
  height: 15px;
  fill: var(--color-gold);
}

/* Floating Bottom Booking Bar (Mobile Only) */
.mobile-sticky-action-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #ffffff;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.08);
  padding: 10px 16px;
  z-index: 999;
  border-top: 1px solid var(--color-border);
}

.mobile-action-group {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: 8px;
}

.mobile-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 4px;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 500;
  color: #222222;
  background-color: #FAF8F5;
  border: 1px solid var(--color-border);
}

.mobile-action-btn svg {
  width: 16px;
  height: 16px;
  margin-bottom: 2px;
  fill: var(--color-primary);
}

.mobile-book-btn {
  background-color: #272B64;
  color: #ffffff;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Responsive Media Queries */
@media (max-width: 1100px) {
  .nav-list {
    gap: 12px;
  }
  .nav-link {
    font-size: 0.95rem;
  }
}

@media (max-width: 991px) {
  .header-top-bar {
    display: none;
  }
  
  .desktop-nav {
    display: none;
  }
  
  .mobile-toggle-btn {
    display: flex;
  }
  
  .mobile-sticky-action-bar {
    display: block;
  }
}