/* ===================================
   Responsive Styles
   =================================== */

/* Mobile Menu Styles */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1998;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-menu-overlay.active {
    display: block;
    opacity: 1;
}

.mobile-menu-drawer {
    position: fixed;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100%;
    background-color: var(--bg-white);
    z-index: 1999;
    transition: left var(--transition-base);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
}

.mobile-menu-drawer.active {
    left: 0;
}

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

.mobile-menu-header h2 {
    font-size: 1.25rem;
}

.close-menu-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
}

.mobile-nav ul {
    padding: var(--spacing-md);
}

.mobile-nav ul li {
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav ul li:last-child {
    border-bottom: none;
}

.mobile-nav ul li a {
    display: block;
    padding: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.mobile-nav ul li a:hover {
    color: var(--primary-color);
}

/* Tablet Styles (max-width: 990px) */
@media (max-width: 990px) {
    /* Navigation */
    .nav-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    /* Hero Slider */
    .hero-slider {
        height: 500px;
    }

    .slide-title {
        font-size: 2.5rem;
    }

    .slide-subtitle {
        font-size: 1.1rem;
    }

    .slider-nav {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }

    .slider-prev {
        left: var(--spacing-md);
    }

    .slider-next {
        right: var(--spacing-md);
    }

    /* Product Grid */
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .section-header h2 {
        font-size: 2.3rem;
    }

    .product-card .product-image {
        height: 160px;
    }

    /* Blog Grid */
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }

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

    .content-section.reverse .content-grid {
        direction: ltr;
    }

    .content-image .image-placeholder {
        height: 300px;
    }

    /* Contact Grid */
    .contact-grid {
        grid-template-columns: 1fr;
    }

    /* Product Detail */
    .product-detail-grid {
        grid-template-columns: 1fr;
    }

    .product-images .main-image {
        height: 400px;
    }

    .image-gallery {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }

    .gallery-thumbnail {
        height: 80px;
    }

    /* Why Grid */
    .why-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    /* Features Grid */
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

/* Mobile Styles (max-width: 750px) */
@media (max-width: 750px) {
    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    /* Spacing */
    .container {
        padding: 0 var(--spacing-sm);
    }

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

    .logo-img {
        height: 50px;
        max-width: 180px;
    }

    .logo h1 {
        font-size: 1.25rem;
    }

    .search-box {
        right: auto;
        left: 0;
        min-width: 280px;
    }

    /* Hero Slider */
    .hero-slider {
        height: 450px;
    }

    .slide-title {
        font-size: 2rem;
    }

    .slide-subtitle {
        font-size: 1rem;
    }

    .slide-badge {
        font-size: 0.85rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .slide-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .slide-cta .btn {
        width: 100%;
        max-width: 300px;
    }

    .slider-nav {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .slider-prev {
        left: var(--spacing-sm);
    }

    .slider-next {
        right: var(--spacing-sm);
    }

    .slider-dots {
        bottom: var(--spacing-md);
    }

    .slider-dots .dot {
        width: 10px;
        height: 10px;
    }

    .slider-dots .dot.active {
        width: 30px;
    }

    /* Sections */
    .products-section,
    .benefits-section,
    .newsletter-section,
    .about-content,
    .contact-section,
    .blog-section,
    .product-detail-section,
    .product-features-section,
    .related-products-section,
    .faq-section,
    .cta-section {
        padding: var(--spacing-xl) 0;
    }

    .section-header {
        margin-bottom: var(--spacing-lg);
    }

    .section-header h2 {
        font-size: 2rem;
    }

    /* Product Grid */
    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 var(--spacing-sm);
    }

    .product-card .product-image {
        height: 150px;
    }

    /* Benefits Grid */
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

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

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

    /* Footer */
    .footer {
        padding: var(--spacing-xl) 0 0;
    }

    .footer-content {
        padding: 0 var(--spacing-lg) var(--spacing-xl);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }

    .footer-brand {
        grid-column: 1 / -1;
        max-width: 100%;
    }

    .footer-newsletter {
        grid-column: 1 / -1;
    }

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

    .newsletter-section {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .payment-methods {
        justify-content: center;
    }

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

    .blog-card .blog-image {
        height: 180px;
    }

    .blog-card .blog-content {
        padding: var(--spacing-md);
    }

    .blog-card h2 {
        font-size: 1.25rem;
    }

    /* Values Grid */
    .values-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* Why Grid */
    .why-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .why-number {
        font-size: 1.5rem;
    }

    /* Contact Methods */
    .contact-method {
        flex-direction: column;
        align-items: flex-start;
    }

    .social-links-large {
        justify-content: center;
    }

    /* FAQ Grid */
    .faq-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* Product Detail */
    .product-images .main-image {
        height: 300px;
    }

    .image-gallery {
        grid-template-columns: repeat(3, 1fr);
    }

    .gallery-thumbnail {
        height: 70px;
    }

    .product-price .current-price {
        font-size: 1.75rem;
    }

    .product-price .original-price {
        font-size: 1.1rem;
    }

    .variant-options {
        flex-wrap: wrap;
    }

    /* Features Grid */
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* Buttons */
    .btn-large {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 1rem;
    }

    /* Image Placeholders */
    .image-placeholder i {
        font-size: 3rem;
    }

    .product-image-large i {
        font-size: 6rem;
    }

    .benefit-card i,
    .value-card i,
    .feature-item i {
        font-size: 2.5rem;
    }

    .content-image .image-placeholder i {
        font-size: 4rem;
    }

    /* Content Sections */
    .content-section {
        margin-bottom: var(--spacing-xl);
    }

    .values-section,
    .why-choose-section {
        margin: var(--spacing-xl) 0;
    }

    /* Search Results */
    .search-results {
        max-height: 250px;
    }

    /* Page Header */
    .page-header {
        padding: var(--spacing-lg) 0;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .page-header p {
        font-size: 1rem;
    }

    /* Breadcrumb */
    .breadcrumb {
        padding: var(--spacing-sm) 0;
        font-size: 0.9rem;
    }
}

/* Small Mobile Styles (max-width: 480px) */
@media (max-width: 640px) {
    /* Product Grid - 2 columns for medium-small screens */
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .product-card .product-image {
        height: 150px;
    }

    .product-card .product-name {
        font-size: 0.95rem;
    }

    .product-card .current-price {
        font-size: 1.2rem;
    }

    .product-card .product-details {
        padding: 14px;
    }
}

@media (max-width: 480px) {
    /* Typography */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.1rem; }

    /* Hero Slider */
    .hero-slider {
        height: 400px;
    }

    .slide-title {
        font-size: 1.75rem;
    }

    .slide-subtitle {
        font-size: 0.95rem;
    }

    /* Logo */
    .logo-img {
        height: 45px;
        max-width: 160px;
    }

    .logo h1 {
        font-size: 1.1rem;
    }

    /* Search Box */
    .search-box {
        min-width: 250px;
    }

    /* Product Card */
    .product-card .product-image {
        height: 200px;
    }

    .product-card .current-price {
        font-size: 1.25rem;
    }

    /* Blog Card */
    .blog-card .blog-image {
        height: 150px;
    }

    .blog-card h2 {
        font-size: 1.1rem;
    }

    /* Buttons */
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.95rem;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-brand,
    .footer-newsletter {
        grid-column: 1;
    }

    .footer-copyright,
    .payment-methods {
        font-size: 0.8rem;
    }

    .payment-icon {
        height: 20px;
    }

    .footer-social {
        justify-content: flex-start;
    }

    .footer-social a {
        width: 40px;
        height: 40px;
    }

    /* Form */
    .contact-form {
        padding: var(--spacing-md);
    }

    /* Product Detail */
    .product-images .main-image {
        height: 250px;
    }

    .product-price .current-price {
        font-size: 1.5rem;
    }

    /* Mobile Menu Drawer */
    .mobile-menu-drawer {
        width: 280px;
    }

    /* Social Links */
    .social-links-large a {
        width: 45px;
        height: 45px;
        font-size: 1.25rem;
    }
}

/* Landscape Mobile (max-height: 500px) */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: var(--spacing-lg) 0;
    }

    .mobile-menu-drawer {
        overflow-y: auto;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .mobile-menu-btn,
    .mobile-menu-drawer,
    .mobile-menu-overlay,
    .newsletter-section,
    .cta-section,
    .btn {
        display: none;
    }

    body {
        font-size: 12pt;
    }

    h1 { font-size: 24pt; }
    h2 { font-size: 20pt; }
    h3 { font-size: 16pt; }

    a {
        text-decoration: underline;
        color: #000;
    }

    .product-card,
    .blog-card,
    .benefit-card {
        break-inside: avoid;
    }
}