/* Enhanced Header Component for BEAUT Landing Page */
/* Perfect mobile navigation experience */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-normal);
    padding-top: env(safe-area-inset-top);
}

.header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    box-shadow: var(--shadow-medium);
    border-bottom: 1px solid var(--glass-border);
}

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

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
    min-height: 48px;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.header-logo:hover {
    color: var(--accent-color);
    background: var(--button-inactive);
}

.header-logo img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.header-nav-link {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    min-height: 48px;
    display: flex;
    align-items: center;
}

.header-nav-link:hover {
    color: var(--text-primary);
    background: var(--button-inactive);
    transform: translateY(-1px);
}

.header-nav-link.active {
    color: var(--text-primary);
    background: var(--button-active);
    font-weight: var(--font-weight-semibold);
}

.header-nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--accent-color);
    border-radius: var(--radius-full);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--spacing-sm);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    min-height: 48px;
    min-width: 48px;
    justify-content: center;
    align-items: center;
}

.header-mobile-toggle:hover {
    background: var(--button-inactive);
    transform: scale(1.05);
}

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

.header-mobile-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
    border-radius: var(--radius-full);
    display: block;
}

.header-mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.header-mobile-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

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

/* Enhanced Mobile Navigation */
.header-mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--glass-border);
    box-shadow: var(--shadow-large);
    padding: var(--spacing-lg);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: var(--z-fixed);
    max-height: 85vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-top: calc(var(--spacing-lg) + env(safe-area-inset-top));
    padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom));
}

.header-mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
}

.header-mobile-nav-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-sm);
    text-align: center;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
}

.header-mobile-nav-link:hover {
    background: var(--button-active);
    color: var(--text-primary);
    transform: translateX(4px);
}

.header-mobile-nav-link:active {
    transform: scale(0.98);
    background: var(--button-active);
}

.header-mobile-nav-link:last-child {
    margin-bottom: 0;
}

/* Mobile menu backdrop */
.header-mobile-nav::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
    pointer-events: none;
}

.header-mobile-nav.active::before {
    opacity: 1;
    pointer-events: auto;
}

/* Enhanced Theme Toggle */
.theme-toggle {
    position: relative;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    margin-right: var(--spacing-md);
    min-height: 48px;
    min-width: 48px;
}

.theme-toggle:hover {
    background: var(--button-active);
    transform: scale(1.05);
}

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

.theme-icon {
    width: 20px;
    height: 20px;
    fill: var(--text-primary);
    transition: all var(--transition-normal);
}

.sun-icon {
    opacity: 1;
    transform: rotate(0deg);
}

.moon-icon {
    opacity: 0;
    transform: rotate(-90deg);
    position: absolute;
}

/* Dark theme styles */
[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(90deg);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: rotate(0deg);
}

/* ===== RESPONSIVE BREAKPOINTS ===== */

/* Tablet and smaller */
@media (max-width: 1023px) {
    .header-nav {
        display: none;
    }
    
    .header-mobile-toggle {
        display: flex;
    }
    
    .header-mobile-nav {
        display: block;
    }
    
    .header-actions {
        gap: var(--spacing-sm);
    }
    
    .header-actions .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .header-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .header-logo {
        font-size: var(--font-size-lg);
    }
    
    .header-logo img {
        width: 28px;
        height: 28px;
    }
    
    .theme-toggle {
        width: 36px;
        height: 36px;
        margin-right: var(--spacing-sm);
    }
    
    .theme-icon {
        width: 18px;
        height: 18px;
    }
}

/* Mobile Large (481px-767px) */
@media (max-width: 767px) {
    .header-container {
        padding: var(--spacing-sm) var(--spacing-md);
        gap: var(--spacing-sm);
    }
    
    .header-logo {
        font-size: var(--font-size-base);
        gap: var(--spacing-xs);
    }
    
    .header-logo img {
        width: 24px;
        height: 24px;
    }
    
    .header-actions {
        gap: var(--spacing-xs);
    }
    
    .header-actions .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
        min-width: 60px;
    }
    
    .theme-toggle {
        width: 32px;
        height: 32px;
        margin-right: var(--spacing-xs);
    }
    
    .theme-icon {
        width: 16px;
        height: 16px;
    }
    
    .header-mobile-toggle {
        padding: var(--spacing-xs);
        min-height: 40px;
        min-width: 40px;
    }
    
    .header-mobile-toggle span {
        width: 20px;
        height: 2px;
    }
    
    .header-mobile-nav {
        padding: var(--spacing-md);
    }
    
    .header-mobile-nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-xs);
        min-height: 44px;
    }
}

/* Mobile Small (320px-480px) - Enhanced by mobile-optimizations.css */
@media (max-width: 480px) {
    .header {
        padding-top: env(safe-area-inset-top);
    }
    
    .header-container {
        padding: 12px 16px;
        gap: 12px;
    }
    
    .header-logo {
        font-size: 18px;
        font-weight: 700;
        gap: 8px;
        min-height: 44px;
    }
    
    .header-logo img {
        width: 28px;
        height: 28px;
    }
    
    .header-actions {
        gap: 8px;
    }
    
    .header-actions .btn {
        padding: 10px 16px;
        font-size: 14px;
        min-width: 80px;
        min-height: 44px;
    }
    
    .theme-toggle {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        min-height: 44px;
        min-width: 44px;
    }
    
    .theme-icon {
        width: 18px;
        height: 18px;
    }
    
    .header-mobile-toggle {
        width: 40px;
        height: 40px;
        padding: 8px;
        border-radius: 50%;
        min-height: 44px;
        min-width: 44px;
    }
    
    .header-mobile-toggle span {
        width: 20px;
        height: 2px;
        border-radius: 1px;
    }
    
    .header-mobile-nav {
        padding: 20px 16px;
        padding-top: calc(20px + env(safe-area-inset-top));
        padding-bottom: calc(20px + env(safe-area-inset-bottom));
        max-height: 85vh;
    }
    
    .header-mobile-nav-link {
        padding: 16px 20px;
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 8px;
        border-radius: 12px;
        min-height: 48px;
    }
}

/* Extra Small Mobile (320px-360px) */
@media (max-width: 360px) {
    .header-container {
        padding: var(--spacing-xs);
        gap: var(--spacing-xs);
    }
    
    .header-logo {
        font-size: var(--font-size-sm);
        gap: 6px;
    }
    
    .header-logo img {
        width: 20px;
        height: 20px;
    }
    
    .header-actions .btn {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
        min-width: auto;
        min-height: 40px;
    }
    
    .theme-toggle {
        width: 28px;
        height: 28px;
        margin-right: var(--spacing-xs);
        min-height: 40px;
        min-width: 40px;
    }
    
    .theme-icon {
        width: 14px;
        height: 14px;
    }
    
    .header-mobile-toggle {
        padding: var(--spacing-xs);
        min-height: 40px;
        min-width: 40px;
    }
    
    .header-mobile-toggle span {
        width: 18px;
        height: 2px;
    }
    
    .header-mobile-nav {
        padding: var(--spacing-sm);
    }
    
    .header-mobile-nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-xs);
        min-height: 44px;
    }
}