/*
Theme Name: Wallpaper Elegance Pro
Description: Premium wallpaper business theme inspired by Arte International's sophisticated design
Version: 2.0.0
Author: Your Business
Text Domain: wallpaper-elegance
*/

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

:root {
    /* Premium Color Palette */
    --primary-color: #1a1a1a;
    --secondary-color: #2d2d2d;
    --accent-color: #f5f5f5;
    --text-primary: #1a1a1a;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --white: #ffffff;
    --warm-gray: #f9fafb;
    --premium-gold: #d4af37;
    
    /* Typography Scale */
    --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;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing System */
    --space-4: 1rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Layout */
    --container-width: 1440px;
    --content-width: 1200px;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.65;
    color: var(--text-primary);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 400;
    letter-spacing: -0.025em;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--space-4);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    line-height: 1.7;
}

.lead {
    font-size: var(--font-size-xl);
    font-weight: 300;
    color: var(--text-primary);
    line-height: 1.6;
}

/* Header Styles - Professional Navigation */
.site-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--transition-base);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80px;
}

.site-logo {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: var(--font-size-2xl);
    font-weight: 400;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    transition: opacity var(--transition-base);
}

.site-logo:hover {
    opacity: 0.8;
}

/* Premium Navigation */
.main-navigation ul {
    display: flex;
    list-style: none;
    gap: var(--space-12);
    align-items: center;
}

.main-navigation a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 400;
    font-size: var(--font-size-base);
    position: relative;
    transition: color var(--transition-base);
    padding: var(--space-4) 0;
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--text-primary);
    transition: width var(--transition-base);
}

.main-navigation a:hover {
    color: var(--text-primary);
}

.main-navigation a:hover::after {
    width: 100%;
}

/* Hero Section - Sophisticated Design */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, #fafafa 0%, #f0f0f0 100%);
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 var(--space-32);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="%23000" opacity="0.02"/><circle cx="60" cy="40" r="1" fill="%23000" opacity="0.02"/><circle cx="40" cy="80" r="1" fill="%23000" opacity="0.02"/><circle cx="80" cy="60" r="1" fill="%23000" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    pointer-events: none;
}

.hero-content {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--space-8);
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: var(--space-8);
    color: var(--text-primary);
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-12);
    font-weight: 300;
    line-height: 1.6;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    padding: var(--space-4) var(--space-12);
    background: var(--text-primary);
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 0.025em;
    transition: all var(--transition-base);
    border: 2px solid var(--text-primary);
    text-transform: uppercase;
    font-size: var(--font-size-sm);
}

.hero-cta:hover {
    background: transparent;
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Container & Layout */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.section {
    padding: var(--space-32) 0;
}

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: var(--space-20);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: var(--font-size-4xl);
    font-weight: 300;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.section-title p {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.6;
}

/* Premium Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--space-12);
    margin-top: var(--space-20);
}

.product-card {
    background: var(--white);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    overflow: hidden;
    group: hover;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-color);
}

.product-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--warm-gray);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.product-card:hover .product-image img {
    transform: scale(1.03);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-actions {
    display: flex;
    gap: var(--space-4);
}

.product-actions button,
.product-actions a {
    background: var(--white);
    color: var(--text-primary);
    border: none;
    padding: var(--space-4);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--font-size-lg);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.product-actions button:hover,
.product-actions a:hover {
    background: var(--text-primary);
    color: var(--white);
    transform: scale(1.1);
}

.product-info {
    padding: var(--space-8);
}

.product-collection {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
    font-weight: 500;
}

.product-title {
    font-size: var(--font-size-2xl);
    font-weight: 400;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    font-family: 'Playfair Display', Georgia, serif;
}

.product-title a {
    color: inherit;
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.product-title a:hover {
    opacity: 0.8;
}

.product-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-8);
}

.product-actions-bottom {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.btn-primary,
.btn-secondary {
    padding: var(--space-4) var(--space-8);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
    border: 2px solid var(--text-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    font-size: var(--font-size-sm);
}

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

.btn-primary:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--text-primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Premium Color Swatches */
.color-swatches {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-4);
}

.color-swatch {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--white);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.color-swatch::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid transparent;
    border-radius: 50%;
    transition: border-color var(--transition-base);
}

.color-swatch:hover::after,
.color-swatch.selected::after {
    border-color: var(--text-primary);
}

/* Footer - Elegant & Clean */
.site-footer {
    background: var(--text-primary);
    color: var(--white);
    padding: var(--space-32) 0 var(--space-16);
    margin-top: var(--space-32);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-12);
    margin-bottom: var(--space-16);
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: var(--space-8);
    font-size: var(--font-size-lg);
    font-weight: 500;
    font-family: 'Playfair Display', Georgia, serif;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    line-height: 1.6;
    transition: color var(--transition-base);
}

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

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--space-4);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-8);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --space-4: 0.75rem;
        --space-8: 1.5rem;
        --space-12: 2rem;
        --space-16: 2.5rem;
        --space-20: 3rem;
        --space-24: 3.5rem;
        --space-32: 4rem;
    }
    
    .header-container {
        padding: 0 var(--space-4);
        min-height: 70px;
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .main-navigation ul {
        gap: var(--space-8);
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-section {
        min-height: 80vh;
        padding: 100px 0 var(--space-20);
    }
    
    .hero-content {
        padding: 0 var(--space-4);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .section {
        padding: var(--space-20) 0;
    }
    
    .container {
        padding: 0 var(--space-4);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Focus States for Accessibility */
*:focus {
    outline: 2px solid var(--premium-gold);
    outline-offset: 2px;
}

button:focus,
a:focus {
    outline: 2px solid var(--premium-gold);
    outline-offset: 2px;
}

/* High Contrast Support */
@media (prefers-contrast: high) {
    :root {
        --text-secondary: #000;
        --text-muted: #333;
        --border-color: #000;
    }
}