/* ===================================================================
   ENHANCED HEADER STYLES - RESPONSIVE
   Updated: December 2024
   =================================================================== */

/* Remove any fixed positioning conflicts */
body {
    padding-top: 0 !important;
}

.main-content {
    padding-top: 0 !important;
    margin-top: 0 !important;
}

/* === Header Base === */
.header {
    background-color: var(--surface);
    border-bottom: 2px solid var(--border);
    padding: var(--spacing-sm) 0;
    position: relative;
    z-index: var(--z-sticky);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: 0 var(--spacing-sm);
}

/* === Logo === */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--primary);
    text-decoration: none;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.logo:hover {
    color: var(--primary-dark);
    transform: scale(1.02);
}

.logo i {
    width: 24px;
    height: 24px;
}

.logo img {
    max-height: 32px;
    width: auto;
}

/* === Mobile Header Actions (Badge + Hamburger) === */
.mobile-header-actions {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    flex-shrink: 0;
    flex-wrap: nowrap;
    height: 44px;
}

/* Mobile Loyalty Badge - shown beside hamburger on mobile/tablet */
.mobile-loyalty-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    color: white;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.mobile-loyalty-badge i {
    width: 12px;
    height: 12px;
}

.mobile-loyalty-badge:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* === Desktop Navigation (hidden on mobile) === */
.nav-menu {
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: nowrap;
}

.nav-menu a {
    position: relative;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
    min-height: 40px;
}

.nav-menu a i {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.nav-menu a:hover {
    color: var(--primary);
    background-color: var(--primary-light);
}

.nav-menu a.active {
    color: var(--primary);
    font-weight: var(--font-weight-semibold);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--spacing-sm);
    right: var(--spacing-sm);
    height: 2px;
    background-color: var(--primary);
    border-radius: var(--radius-full);
}

/* Special nav link styles */
.nav-menu a[href*="dashboard"] {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    font-weight: var(--font-weight-semibold);
}

.nav-menu a[href*="dashboard"]:hover {
    background-color: var(--primary);
    color: white;
}

.nav-menu a[href*="logout"] {
    color: var(--error) !important;
}

.nav-menu a[href*="logout"]:hover {
    background-color: rgba(217, 123, 123, 0.1);
}

/* === Mobile Menu Toggle Button === */
.mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus {
    background-color: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
    outline: none;
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

.mobile-menu-toggle i {
    width: 24px;
    height: 24px;
}

/* === Mobile Menu (Full Screen Overlay) === */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--surface);
    z-index: var(--z-modal);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.mobile-menu.active {
    display: block;
    animation: mobileMenuSlideIn 0.3s ease-out;
}

@keyframes mobileMenuSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Mobile Menu Header - for close button positioning */
.mobile-menu::before {
    content: '';
    display: block;
    height: var(--spacing-2xl);
}

/* Mobile Menu List */
.mobile-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu-list li {
    margin-bottom: var(--spacing-xs);
}

.mobile-menu-list a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu-list a i {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.mobile-menu-list a:hover,
.mobile-menu-list a:focus,
.mobile-menu-list a.active {
    background-color: var(--primary-light);
    color: var(--primary);
}

.mobile-menu-list a:active {
    transform: scale(0.98);
}

/* Mobile menu logout styling */
.mobile-menu-list a[href*="logout"] {
    color: var(--error);
}

.mobile-menu-list a[href*="logout"]:hover,
.mobile-menu-list a[href*="logout"]:focus {
    background-color: rgba(217, 123, 123, 0.1);
    color: var(--error);
}

/* Loyalty badge in mobile menu */
.mobile-menu-list .loyalty-header-badge {
    margin: var(--spacing-sm) var(--spacing-lg);
}

/* Mobile Menu Divider */
.mobile-menu-divider {
    height: 1px;
    background-color: var(--border);
    margin: var(--spacing-md) 0;
}

/* ===================================================================
   TABLET BREAKPOINT (768px+)
   =================================================================== */

@media (min-width: 768px) {
    .header {
        padding: var(--spacing-md) 0;
    }

    .header-content {
        padding: 0 var(--spacing-md);
        gap: var(--spacing-lg);
    }

    .logo {
        font-size: var(--font-size-xl);
    }

    .logo i {
        width: 28px;
        height: 28px;
    }

    .logo img {
        max-height: 44px;
    }

    /* Still show mobile menu on tablet */
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    /* Larger touch target for tablet */
    .mobile-menu-list a {
        padding: var(--spacing-lg) var(--spacing-xl);
    }
}

/* ===================================================================
   DESKTOP BREAKPOINT (992px+)
   =================================================================== */

@media (min-width: 992px) {
    .header-content {
        padding: 0 var(--spacing-xl);
        gap: var(--spacing-xl);
    }

    /* Show desktop navigation */
    .nav-menu {
        display: flex;
        gap: var(--spacing-md);
    }

    .nav-menu a {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-base);
    }

    /* Hide mobile menu toggle */
    .mobile-menu-toggle {
        display: none;
    }

    /* Hide mobile header actions (badge + hamburger) on desktop */
    .mobile-header-actions {
        display: none !important;
    }

    /* Hide mobile menu completely on desktop */
    .mobile-menu {
        display: none !important;
    }
}

/* ===================================================================
   LARGE DESKTOP (1200px+)
   =================================================================== */

@media (min-width: 1200px) {
    .nav-menu {
        gap: var(--spacing-lg);
    }

    .nav-menu a {
        padding: var(--spacing-sm) var(--spacing-lg);
    }
}

/* ===================================================================
   STICKY HEADER VARIANT (optional)
   =================================================================== */

.header.sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    animation: headerSlideDown 0.3s ease-out;
}

.header.sticky + .main-content {
    padding-top: 80px;
}

@keyframes headerSlideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Adjust for sticky header on mobile */
@media (max-width: 767px) {
    .header.sticky + .main-content {
        padding-top: 60px;
    }
}

/* ===================================================================
   LANDSCAPE ORIENTATION
   =================================================================== */

@media (max-height: 500px) and (orientation: landscape) {
    .mobile-menu {
        padding: var(--spacing-md);
    }

    .mobile-menu::before {
        height: var(--spacing-lg);
    }

    .mobile-menu-list a {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-base);
    }
}

/* ===================================================================
   ACCESSIBILITY IMPROVEMENTS
   =================================================================== */

/* Keyboard focus styles */
.nav-menu a:focus-visible,
.mobile-menu-toggle:focus-visible,
.mobile-menu-list a:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .header {
        border-bottom-width: 3px;
    }

    .nav-menu a,
    .mobile-menu-list a {
        border: 1px solid transparent;
    }

    .nav-menu a:focus,
    .mobile-menu-list a:focus {
        border-color: var(--text-primary);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .mobile-menu.active {
        animation: none;
    }

    .header.sticky {
        animation: none;
    }

    .logo:hover {
        transform: none;
    }

    .mobile-menu-toggle:active,
    .mobile-menu-list a:active {
        transform: none;
    }
}