/* Mobile First Responsive Design */

/* Base styles for mobile (up to 768px) */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    /* Header */
    .header-content {
        padding: var(--spacing-sm);
    }

    .logo img {
        height: 32px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--bg-color);
        box-shadow: var(--shadow-hover);
        padding: var(--spacing-2xl) 0;
        transition: left 0.3s ease;
        z-index: 1500;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 0;
    }

    .nav-menu a {
        display: block;
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu a:hover,
    .nav-menu a.active {
        background-color: rgba(37, 99, 235, 0.1);
    }

    .header-actions {
        gap: var(--spacing-sm);
    }

    .search-box {
        display: none; /* Hide search on mobile for now */
    }

    /* Mobile menu toggle button */
    .menu-toggle {
        display: block;
        background: none;
        border: none;
        color: var(--text-color);
        font-size: var(--font-size-2xl);
        cursor: pointer;
        padding: var(--spacing-sm);
    }

    /* Hero Section */
    .hero {
        height: auto;
        min-height: 100vh;
        padding: var(--spacing-2xl) 0;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
        margin-bottom: var(--spacing-xl);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        display: none; /* Hide hero image on mobile to save space */
    }

    /* Products Grid */
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .product-card {
        margin: 0 auto;
        max-width: 400px;
    }

    /* About Section */
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-image {
        order: -1;
    }

    /* Newsletter */
    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form input {
        width: 100%;
    }

    .newsletter-form button {
        width: 100%;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    /* Modals */
    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: var(--spacing-lg);
    }

    .modal-actions {
        flex-direction: column;
    }

    .modal-actions .btn {
        width: 100%;
    }
}

/* Tablet styles (769px to 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }

    /* Header */
    .nav-menu ul {
        gap: var(--spacing-md);
    }

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

    /* Hero */
    .hero {
        padding: var(--spacing-3xl) 0;
    }

    .hero-title {
        font-size: var(--font-size-5xl);
    }

    .hero-image {
        width: 300px;
    }

    /* Products Grid */
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* About */
    .about-content {
        gap: var(--spacing-xl);
    }
}

/* Desktop styles (1025px and up) */
@media (min-width: 1025px) {
    .container {
        padding: 0 var(--spacing-xl);
    }

    /* Header */
    .nav-menu ul {
        gap: var(--spacing-lg);
    }

    /* Hero */
    .hero-image {
        width: 400px;
    }

    /* Products Grid */
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large Desktop styles (1400px and up) */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }

    .hero-title {
        font-size: 4rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }
}

/* High DPI/Retina displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .btn {
        border-radius: 6.0px; /* Fix for pixel-perfect rendering */
    }
    
    .product-card {
        border-radius: 12.0px;
    }
}

/* Print styles */
@media print {
    .header, .footer, .newsletter, .modal {
        display: none !important;
    }
    
    body {
        background-color: white !important;
        color: black !important;
    }
    
    a {
        color: black !important;
        text-decoration: underline !important;
    }
    
    .product-card {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
    
    img {
        max-width: 100% !important;
        height: auto !important;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero-image {
        animation: none !important;
    }
}

/* Dark mode detection */
@media (prefers-color-scheme: dark) {
    /* Optional: Auto-enable dark theme based on system preference */
    /* This can be controlled via JavaScript for better user experience */
}

/* Landscape orientation for mobile devices */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: 60vh;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
}

/* Portrait orientation for mobile devices */
@media (max-width: 768px) and (orientation: portrait) {
    .hero {
        min-height: 80vh;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}

/* Very small screens (phones in portrait) */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-xs);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .product-name {
        font-size: var(--font-size-lg);
    }
    
    .product-desc {
        font-size: var(--font-size-xs);
    }
    
    .about-desc {
        font-size: var(--font-size-base);
    }
}

/* Touch-friendly adjustments */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px; /* Minimum touch target size */
        padding: 12px 24px;
    }
    
    .nav-menu a {
        min-height: 44px;
        padding: 12px 16px;
    }
    
    .lang-btn, .lang-option {
        min-height: 44px;
        padding: 12px 16px;
    }
    
    .product-buy-btn {
        min-height: 44px;
    }
}

/* Focus styles for keyboard navigation */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip navigation link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    z-index: 100;
    text-decoration: none;
    border-radius: 4px;
}

.skip-link:focus {
    top: 6px;
}