/*!
 * Hanell International - Header Component Styles
 * Developer: Brian Guvava | Company: BLAXIUM (https://blaxium.com)
 * Project: Hanell International Website Redesign v1.0.0
 * Last Updated: June 30, 2025
 * 
 * REQ-006: Integrated header with sticky navigation menu
 * This file contains all styles for the main header component including
 * sticky navigation, mobile menu, dropdowns, and responsive behavior.
 */

/* =============================================================================
   HEADER COMPONENT - MAIN CONTAINER
   ============================================================================= */

.header {
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  z-index: var(--z-sticky);
  position: relative;
  border-bottom: 1px solid rgba(0, 59, 109, 0.1);
}

/* Sticky Header State */
.header--sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  animation: slideInDown 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border-bottom: 1px solid rgba(0, 59, 109, 0.2);
}

/* Hidden Header State (scroll down) */
.header--hidden {
  transform: translateY(-100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Header Animation */
@keyframes slideInDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* =============================================================================
   NAVBAR COMPONENT
   ============================================================================= */

.header .navbar {
  padding: var(--spacing-md) 0;
  transition: padding var(--transition-base);
}

.header--sticky .navbar {
  padding: var(--spacing-sm) 0;
}

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

/* =============================================================================
   BRAND/LOGO SECTION
   ============================================================================= */

.header__brand,
.navbar-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: var(--transition-base);
  padding: var(--spacing-xs) 0;
}

.header__brand:hover,
.navbar-brand:hover {
  text-decoration: none;
  transform: scale(1.05);
}

.header__logo,
.logo {
  height: 50px;
  width: auto;
  transition: var(--transition-base);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.header--sticky .header__logo,
.header--sticky .logo {
  height: 40px;
}

/* =============================================================================
   NAVIGATION MENU - DESKTOP
   ============================================================================= */

.header__nav,
.navbar-nav {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.header__nav-item,
.nav-item {
  position: relative;
  margin: 0 var(--spacing-xs);
}

.header__nav-link,
.nav-link {
  display: flex;
  align-items: center;
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  white-space: nowrap;
}

.header__nav-link::before,
.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.header__nav-link:hover,
.nav-link:hover {
  color: var(--color-primary);
  background-color: rgba(0, 59, 109, 0.08);
  text-decoration: none;
  transform: translateY(-2px);
}

.header__nav-link:hover::before,
.nav-link:hover::before {
  width: 80%;
}

.header__nav-link--active,
.nav-link.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  background-color: rgba(0, 59, 109, 0.1);
}

.header__nav-link--active::before,
.nav-link.active::before {
  width: 100%;
}

/* Navigation Icons */
.header__nav-link i,
.nav-link i {
  margin-right: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

/* =============================================================================
   DROPDOWN MENUS
   ============================================================================= */

.header__dropdown,
.dropdown {
  position: relative;
}

.header__dropdown-toggle,
.dropdown-toggle {
  position: relative;
  cursor: pointer;
}

.header__dropdown-toggle::after,
.dropdown-toggle::after {
  content: '\f107'; /* FontAwesome chevron-down */
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-left: var(--spacing-xs);
  transition: transform var(--transition-base);
  border: none;
}

.header__dropdown-toggle.show::after,
.dropdown-toggle.show::after {
  transform: rotate(180deg);
}

.header__dropdown-menu,
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 250px;
  background-color: var(--bg-primary);
  border: 1px solid rgba(0, 59, 109, 0.1);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: var(--z-dropdown);
  padding: var(--spacing-sm) 0;
  margin-top: var(--spacing-xs);
}

.header__dropdown:hover .header__dropdown-menu,
.dropdown:hover .dropdown-menu,
.header__dropdown-menu.show,
.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__dropdown-item,
.dropdown-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--text-primary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  transition: all var(--transition-base);
  border-radius: 0;
}

.header__dropdown-item:hover,
.dropdown-item:hover {
  background-color: rgba(0, 59, 109, 0.08);
  color: var(--color-primary);
  text-decoration: none;
  padding-left: var(--spacing-xl);
}

.header__dropdown-item i,
.dropdown-item i {
  margin-right: var(--spacing-sm);
  width: 16px;
  text-align: center;
  color: var(--color-primary);
}

/* Dropdown Dividers */
.header__dropdown-divider,
.dropdown-divider {
  height: 1px;
  background-color: rgba(0, 59, 109, 0.1);
  margin: var(--spacing-sm) var(--spacing-md);
}

/* =============================================================================
   CALL-TO-ACTION BUTTONS
   ============================================================================= */

.header__cta,
.navbar-cta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-left: var(--spacing-lg);
}

.header__cta .btn,
.navbar-cta .btn {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-transform: none;
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.header__cta .btn::before,
.navbar-cta .btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s;
  z-index: -1;
}

.header__cta .btn:hover::before,
.navbar-cta .btn:hover::before {
  left: 100%;
}

/* Primary CTA Button */
.header__cta .btn-primary,
.navbar-cta .btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border: 2px solid var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.header__cta .btn-primary:hover,
.navbar-cta .btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Secondary CTA Button */
.header__cta .btn-outline-primary,
.navbar-cta .btn-outline-primary {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.header__cta .btn-outline-primary:hover,
.navbar-cta .btn-outline-primary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* =============================================================================
   MOBILE MENU TOGGLE BUTTON
   ============================================================================= */

.header__mobile-toggle,
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  transition: var(--transition-base);
  position: relative;
  z-index: calc(var(--z-modal) + 2); /* Ensure toggle is above everything */
}

.header__mobile-toggle:hover,
.mobile-menu-toggle:hover {
  background-color: rgba(0, 59, 109, 0.1);
}

.header__mobile-toggle span,
.mobile-menu-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background-color: var(--text-primary);
  margin: 3px 0;
  transition: all var(--transition-base);
  border-radius: 2px;
  transform-origin: center;
}

/* Hamburger Animation */
.header__mobile-toggle--active span:nth-child(1),
.mobile-menu-toggle--active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.header__mobile-toggle--active span:nth-child(2),
.mobile-menu-toggle--active span:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.header__mobile-toggle--active span:nth-child(3),
.mobile-menu-toggle--active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* =============================================================================
   MOBILE MENU OVERLAY
   ============================================================================= */

.header__mobile-menu,
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  z-index: 9999; /* Higher z-index to ensure it's above all other elements */
  transition: all 0.3s ease-in-out;
  visibility: hidden;
  opacity: 0;
}

.mobile-menu.is-active {
  right: 0;
  visibility: visible;
  opacity: 1;
}

.mobile-menu-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: -1;
}

.mobile-menu-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 80%;
  max-width: 320px;
  height: 100%;
  background-color: var(--color-white);
  padding: 2rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 1;
  box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

/* =============================================================================
   RESPONSIVE DESIGN
   ============================================================================= */

/* Large Desktop */
@media (min-width: 1400px) {
  .header .container {
    max-width: var(--container-xxl);
  }
  
  .header__nav-link,
  .nav-link {
    font-size: var(--font-size-lg);
    padding: var(--spacing-md) var(--spacing-lg);
  }
}

/* Desktop */
@media (min-width: 992px) {
  .header__nav,
  .navbar-nav {
    display: flex;
  }
  
  .header__mobile-toggle,
  .mobile-menu-toggle {
    display: none;
  }
}

/* Tablet and Mobile */
@media (max-width: 991px) {
  .header__nav,
  .navbar-nav {
    display: none;
  }
  
  .header__mobile-toggle,
  .mobile-menu-toggle {
    display: flex !important; /* Force display on mobile */
  }
  
  .header__cta,
  .navbar-cta {
    display: none;
  }
  
  .header__logo,
  .logo {
    height: 40px;
  }
  
  .header--sticky .header__logo,
  .header--sticky .logo {
    height: 35px;
  }
  
  .header .navbar {
    padding: var(--spacing-sm) 0;
  }
  
  .header__mobile-menu,
  .mobile-menu {
    top: 70px; /* Fixed height for mobile to ensure proper positioning */
    display: block; /* Ensure mobile menu is always present on mobile */
  }
}

/* Mobile Portrait */
@media (max-width: 576px) {
  .header .container {
    padding: 0 var(--spacing-sm);
  }
  
  .header__logo,
  .logo {
    height: 35px;
  }
  
  .header--sticky .header__logo,
  .header--sticky .logo {
    height: 30px;
  }
  
  .header__mobile-toggle,
  .mobile-menu-toggle {
    width: 40px;
    height: 40px;
  }
  
  .header__mobile-toggle span,
  .mobile-menu-toggle span {
    width: 22px;
    height: 2px;
  }
}

/* =============================================================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================================================= */

/* Focus Styles for Keyboard Navigation */
.header__nav-link:focus,
.nav-link:focus,
.header__dropdown-item:focus,
.dropdown-item:focus,
.header__mobile-toggle:focus,
.mobile-menu-toggle:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-md);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .header {
    border-bottom: 2px solid var(--text-primary);
  }
  
  .header__nav-link,
  .nav-link {
    border: 1px solid transparent;
  }
  
  .header__nav-link:hover,
  .nav-link:hover {
    border-color: var(--color-primary);
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .header,
  .header__nav-link,
  .nav-link,
  .header__dropdown-menu,
  .dropdown-menu,
  .header__mobile-toggle span,
  .mobile-menu-toggle span {
    transition: none;
  }
  
  .header--sticky {
    animation: none;
  }
}

/* =============================================================================
   PRINT STYLES
   ============================================================================= */

@media print {
  .header {
    position: static;
    box-shadow: none;
    background: white;
    border-bottom: 2px solid black;
  }
  
  .header__mobile-toggle,
  .mobile-menu-toggle,
  .header__cta,
  .navbar-cta {
    display: none;
  }
  
  .header__nav,
  .navbar-nav {
    display: flex;
  }
  
  .header__nav-link,
  .nav-link {
    color: black;
    text-decoration: underline;
  }
}
    border: 1px solid transparent;
  }
  
  .header__nav-link:hover,
  .nav-link:hover {
    border-color: var(--color-primary);
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .header,
  .header__nav-link,
  .nav-link,
  .header__dropdown-menu,
  .dropdown-menu,
  .header__mobile-toggle span,
  .mobile-menu-toggle span {
    transition: none;
  }
  
  .header--sticky {
    animation: none;
  }
}

/* =============================================================================
   PRINT STYLES
   ============================================================================= */

@media print {
  .header {
    position: static;
    box-shadow: none;
    background: white;
    border-bottom: 2px solid black;
  }
  
  .header__mobile-toggle,
  .mobile-menu-toggle,
  .header__cta,
  .navbar-cta {
    display: none;
  }
  
  .header__nav,
  .navbar-nav {
    display: flex;
  }
  
  .header__nav-link,
  .nav-link {
    color: black;
    text-decoration: underline;
  }
}