/* CSS Variables - Design System - Dark Theme */
:root {
    /* Colors - Dark Theme */
    --color-primary: #0b84f5;
    --color-accent: #ff6b35;
    --color-background: #0a0a0a;
    --color-card: #1a1a1a;
    --color-foreground: #f4f4f5;
    --color-muted: #a1a1aa;
    --color-border: #27272a;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius: 0.875rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    
    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-background);
    color: var(--color-foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Container */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.container-narrow {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

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

.header-logo {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-foreground);
}

.logo-subtitle {
    font-size: 0.875rem;
    color: var(--color-muted);
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* Hero Section */
.hero-section {
    padding-top: 8rem;
    padding-bottom: var(--spacing-3xl);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

/* Gallery */
.gallery-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.main-image-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--color-card);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4 / 3;
}

.main-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumbnails-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.thumbnail {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: none;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
    aspect-ratio: 4 / 3;
}

.thumbnail:hover {
    border-color: var(--color-primary);
    opacity: 0.8;
}

.thumbnail.active {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Product Info */
.product-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.product-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.star {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-primary);
}

.rating-text {
    font-size: 0.875rem;
    color: var(--color-muted);
}

.product-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-foreground);
    line-height: 1.2;
}

.product-subtitle {
    font-size: 1.25rem;
    color: var(--color-muted);
}

.price-section {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.price {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-foreground);
    margin-bottom: 0.5rem;
}

.price-label {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--color-muted);
}

.replica-badge {
    font-size: 0.875rem;
    color: var(--color-muted);
    margin-top: 0.5rem;
}

/* Buttons */
.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.btn {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s ease;
    display: inline-block;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    background-color: #0a75db;
}

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

.btn-outline:hover {
    background-color: rgba(11, 132, 245, 0.1);
}

.btn-accent {
    background-color: var(--color-accent);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-accent:hover {
    background-color: #e55a2b;
}

/* Benefits */
.benefits-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
}

.benefits-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-foreground);
}

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

.check-icon {
    background-color: rgba(11, 132, 245, 0.1);
    border-radius: 50%;
    padding: var(--spacing-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.check-icon svg {
    width: 1rem;
    height: 1rem;
    color: var(--color-primary);
}

.benefit-item span {
    color: var(--color-muted);
}

/* Specs Card */
.specs-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.specs-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-lg);
}

.spec-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.spec-row:last-child {
    border-bottom: none;
}

.spec-label {
    color: var(--color-muted);
}

.spec-value {
    font-weight: 500;
    color: var(--color-foreground);
}

/* Newsletter Section */
.newsletter-section {
    padding: var(--spacing-3xl) 0;
    background-color: rgba(39, 39, 42, 0.3);
}

.newsletter-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
}

.newsletter-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-foreground);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.newsletter-subtitle {
    color: var(--color-muted);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

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

.email-input {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: var(--font-family);
    transition: border-color 0.2s ease;
    background-color: var(--color-background);
    color: var(--color-foreground);
}

.email-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.thank-you-message {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.success-icon {
    background-color: rgba(11, 132, 245, 0.1);
    border-radius: 50%;
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.success-icon svg {
    width: 2rem;
    height: 2rem;
    color: var(--color-primary);
}

.thank-you-title {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-sm);
}

.thank-you-text {
    color: var(--color-muted);
}

/* Reviews Section */
.reviews-section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-foreground);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

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

.review-card {
    background: linear-gradient(to bottom right, var(--color-card), rgba(39, 39, 42, 0.5));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: box-shadow 0.2s ease;
}

.review-card:hover {
    box-shadow: var(--shadow-lg);
}

.review-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-foreground);
    margin-bottom: var(--spacing-sm);
}

.review-rating {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.review-description {
    color: var(--color-muted);
}

/* Footer */
.footer {
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--color-border);
    background-color: rgba(39, 39, 42, 0.3);
}

.footer-text {
    font-size: 0.875rem;
    color: var(--color-muted);
    text-align: center;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.toast {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

.toast.success {
    border-left: 4px solid #10b981;
}

.toast.error {
    border-left: 4px solid #ef4444;
}

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

/* Responsive Design */
@media (min-width: 768px) {
    .nav-menu {
        display: flex;
    }
    
    .hero-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
    }
    
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .nav-menu {
        display: none;
    }
    
    .product-title {
        font-size: 1.75rem;
    }
    
    .product-subtitle {
        font-size: 1rem;
    }
    
    .price {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    #toast-container {
        left: var(--spacing-xl);
        right: var(--spacing-xl);
    }
    
    .toast {
        min-width: auto;
    }
}