/* CSS Variables for Theme */

:root {
    /* Colors */
    --primary-color: #1E90FF;
    --accent-color: #00D1B2;
    --dark-color: #0E0E12;
    --light-color: #F5F7FB;
    /* Theme Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: var(--light-color);
    --text-primary: var(--dark-color);
    --text-secondary: #6B7280;
    --surface-color: #FFFFFF;
    --border-color: #E5E7EB;
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    /* Typography */
    --font-family: Inter, "Segoe UI", Roboto, -apple-system, system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    /* Layout */
    --container-max-width: 1200px;
    --header-height: 70px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark Theme */

[data-theme="dark"] {
    --bg-primary: #1A1B23;
    --bg-secondary: #0E0E12;
    --text-primary: #F9FAFB;
    --text-secondary: #9CA3AF;
    --surface-color: #2D3748;
    --border-color: #374151;
}

/* Reset & Base Styles */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* Utility Classes */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-primary);
}

/* Scroll Progress Bar */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    z-index: 1001;
    transition: width var(--transition-fast);
}

/* Header */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-base);
}

[data-theme="dark"] .header {
    background: rgba(26, 27, 35, 0.95);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    text-decoration: none;
}

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

.nav {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
}

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

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.theme-icon {
    display: none;
}

[data-theme="light"] .theme-icon-light,
[data-theme="dark"] .theme-icon-dark {
    display: block;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    gap: 4px;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Drawer */

.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    z-index: 1100;
    transition: right var(--transition-base);
}

.mobile-drawer.active {
    right: 0;
}

.mobile-drawer-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    height: 100%;
    background: var(--surface-color);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--border-color);
}

.mobile-drawer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-drawer.active .mobile-drawer-overlay {
    opacity: 1;
}

.drawer-close {
    align-self: flex-end;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.mobile-nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-lg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

/* Buttons */

.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.cta-btn.primary {
    background: var(--primary-color);
    color: white;
}

.cta-btn.primary:hover {
    background: #1875E8;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.cta-btn.secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.cta-btn.secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.cta-btn.large {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

/* Hero Section */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    padding-top: var(--header-height);
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-illustration {
    width: 100%;
    height: auto;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Features Section */

.features {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--surface-color);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(30, 144, 255, 0.05), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    color: white;
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Products Section */

.products {
    background: var(--bg-primary);
}

.product-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 150px;
}

.filter-group label {
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.filter-select,
.search-input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    transition: all var(--transition-fast);
}

.filter-select:focus,
.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 144, 255, 0.1);
}

.search-group {
    position: relative;
    flex: 1;
}

.search-input {
    padding-right: 40px;
    width: 100%;
}

.search-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

/* Compare Bar */

.compare-bar {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.compare-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.compare-items {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.compare-item {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.compare-remove {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 2px;
}

.compare-btn,
.compare-clear {
    background: white;
    color: var(--primary-color);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.compare-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.compare-clear {
    background: transparent;
    color: white;
    border: 1px solid white;
}

.compare-clear:hover {
    background: white;
    color: var(--primary-color);
}

/* Products Grid */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.product-card:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.product-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--primary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.product-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--accent-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.product-badge.promo {
    background: #F59E0B;
}

.product-content {
    padding: var(--spacing-lg);
}

.product-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.product-specs {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.product-price {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.product-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.product-actions .cta-btn {
    flex: 1;
    justify-content: center;
}

.compare-checkbox {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 20px;
    height: 20px;
    accent-color: var(--primary-color);
}

/* Reviews Section */

.reviews {
    background: var(--bg-secondary);
}

.reviews-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.reviews-container {
    display: flex;
    transition: transform var(--transition-base);
    overflow: hidden;
}

.review-card {
    min-width: 100%;
    background: var(--surface-color);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
}

.review-rating {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.star {
    color: #FCD34D;
    font-size: var(--font-size-lg);
}

.review-text {
    font-size: var(--font-size-lg);
    font-style: italic;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.6;
}

.review-author {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.review-product {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.slider-btn {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.slider-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.slider-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* FAQ Section */

.faq {
    background: var(--bg-primary);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--spacing-lg);
    text-align: left;
    font-family: inherit;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-icon {
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer-content {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Secondary CTA */

.secondary-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.secondary-cta .cta-btn.primary {
    background: white;
    color: var(--primary-color);
}

.secondary-cta .cta-btn.primary:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

/* Contact Section */

.contact {
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.contact-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

/* Form Styles */

.contact-form {
    background: var(--surface-color);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: var(--font-size-base);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 144, 255, 0.1);
}

.form-error {
    color: #EF4444;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: block;
    min-height: 20px;
}

/* Footer */

.footer {
    background: var(--dark-color);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    padding: var(--spacing-3xl) 0;
}

.footer-brand {
    grid-column: span 1;
}

.footer-brand p {
    margin-top: var(--spacing-md);
    color: #9CA3AF;
    line-height: 1.5;
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-section a {
    display: block;
    color: #9CA3AF;
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: all var(--transition-fast);
    margin: 0;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: #9CA3AF;
}

/* Modals */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    max-width: 600px;
    width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    z-index: 1;
    animation: modalSlideIn 0.3s ease;
}

.modal-content.large {
    max-width: 1000px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

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

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

/* Toast Notification */

.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--accent-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    opacity: 0;
    transition: all var(--transition-base);
    z-index: 3000;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Back to Top Button */

.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #1875E8;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Responsive Design */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .contact-content {
        grid-template-columns: 1fr;
    }
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .hero {
        min-height: 80vh;
    }
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    .hero-actions .cta-btn {
        width: 100%;
        max-width: 300px;
    }
    .product-filters {
        flex-direction: column;
    }
    .filter-group {
        min-width: auto;
    }
    .compare-content {
        flex-direction: column;
        align-items: stretch;
    }
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--spacing-md);
    }
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .section {
        padding: var(--spacing-2xl) 0;
    }
    .section-title {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .modal-content {
        width: 95vw;
        margin: var(--spacing-md);
    }
}

/* Animation Classes */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Loading States */

.loading {
    opacity: 0.5;
    pointer-events: none;
}

.products-grid.loading::after {
    content: 'Memuat produk...';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* Focus Styles for Accessibility */

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print Styles */

@media print {
    .header,
    .mobile-drawer,
    .back-to-top,
    .toast {
        display: none !important;
    }
    .section {
        break-inside: avoid;
    }
}

/* High Contrast Mode */

@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
    }
    [data-theme="dark"] {
        --border-color: #FFFFFF;
        --text-secondary: #FFFFFF;
    }
}

/* Reduced Motion */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .scroll-progress {
        transition: none;
    }
}

/* Compare Table Styles */

.compare-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-lg);
}

.compare-table th,
.compare-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.compare-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.compare-table td {
    color: var(--text-secondary);
}

.compare-table .product-name {
    font-weight: 600;
    color: var(--primary-color);
}

.compare-table .product-price {
    font-weight: 700;
    color: var(--accent-color);
}