/* Base Styles and Variables */
:root {
    /* Colors */
    --color-primary: #2c3e50;
    --color-secondary: #d4af37;
    --color-text: #333333;
    --color-background: #ffffff;
    --color-surface: #f8f9fa;
    --color-muted: #6c757d;
    --color-border: rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Playfair Display', serif;
    --font-secondary: 'Montserrat', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
}

/* Dark Theme */
[data-theme="dark"] {
    --color-primary: #8e9eab;
    --color-secondary: #ffd700;
    --color-text: #e1e1e1;
    --color-background: #1a1a1a;
    --color-surface: #2d2d2d;
    --color-muted: #888888;
    --color-border: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    transition: background-color var(--transition-normal),
                color var(--transition-normal);
}

/* Theme Transition */
.theme-transition {
    transition: background-color 0.3s ease,
                color 0.3s ease,
                border-color 0.3s ease,
                box-shadow 0.3s ease !important;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: var(--spacing-md);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-background);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: background-color var(--transition-normal);
}

.nav-brand {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

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

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-secondary);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--color-surface);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
    transition: transform var(--transition-fast);
}

.theme-toggle:hover svg {
    transform: rotate(15deg);
}

[data-theme="dark"] .moon { display: none; }
[data-theme="dark"] .sun { display: block; }
[data-theme="light"] .moon { display: block; }
[data-theme="light"] .sun { display: none; }

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
                url('assets/hero-bg.jpg') center/cover;
    color: white;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease 0.2s forwards;
}

/* Featured Collection */
.featured {
    padding: var(--spacing-xl) var(--spacing-lg);
    background-color: var(--color-surface);
    text-align: center;
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding: 0 var(--spacing-lg);
}

.product-card {
    background: var(--color-background);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
    animation: scaleIn 0.6s ease-out;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-card:hover .product-image {
    transform: scale(1.08);
}

.image-container {
    position: relative;
    width: 100%;
    padding-top: 100%; /* 1:1 Aspect ratio */
    overflow: hidden;
    background-color: var(--color-surface);
}

.product-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.product-info {
    padding: var(--spacing-lg);
    text-align: left;
    transform: translateY(5px);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 0.2s forwards;
}

.product-info h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.product-info p {
    color: var(--color-muted);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
    line-height: 1.5;
}

.product-price {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    position: relative;
    display: inline-block;
}

.product-price::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-secondary);
    transition: width 0.3s ease;
}

.product-card:hover .product-price::after {
    width: 100%;
}

.error-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-surface);
    color: var(--color-muted);
    font-size: 1.1rem;
    padding: var(--spacing-md);
    text-align: center;
}

/* About Section */
.about {
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
}

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

.feature {
    padding: var(--spacing-lg);
    background-color: var(--color-surface);
    border-radius: 8px;
    transition: transform var(--transition-normal);
}

.feature:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xl) var(--spacing-lg);
    background-color: var(--color-surface);
    text-align: center;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-secondary);
    transition: border-color var(--transition-fast);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
}

/* Buttons */
.cta-button,
.submit-button {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-secondary);
    color: white;
    border: none;
    border-radius: 4px;
    font-family: var(--font-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast),
                background-color var(--transition-fast);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, var(--color-secondary) 0%, #d4af37 100%);
    animation: continuousBounce 2s ease-in-out infinite, glowPulse 2s ease-in-out infinite;
}

.cta-button:hover,
.submit-button:hover {
    transform: scale(1.05);
    animation: continuousBounce 1s ease-in-out infinite, glowPulse 1s ease-in-out infinite;
    background: linear-gradient(135deg, #d4af37 0%, var(--color-secondary) 100%);
}

.cta-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
    transition: all 0.5s ease;
}

.cta-button:hover::after {
    left: 100%;
}

/* Hero Button Special Animation */
.hero .cta-button {
    animation: continuousBounce 2.5s ease-in-out infinite, glowPulse 2.5s ease-in-out infinite;
}

/* Product Card Button Animation */
.product-card .cta-button {
    animation: continuousBounce 2s ease-in-out infinite, glowPulse 2s ease-in-out infinite;
    animation-delay: calc(var(--card-index, 0) * 0.2s);
}

/* Animations */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes continuousBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 5px rgba(212, 175, 55, 0.4); }
    50% { box-shadow: 0 0 15px rgba(212, 175, 55, 0.6); }
}

/* Loading Animation */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-surface) 0%,
        var(--color-background) 50%,
        var(--color-surface) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
    position: relative;
    overflow: hidden;
}

.skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.2) 50%,
        transparent 100%
    );
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        height: 70vh;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
    
    .collection-grid {
        grid-template-columns: 1fr;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.hidden {
    display: none;
}

.fade-in {
    animation: fadeInUp var(--transition-normal) forwards;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3,
.footer-section h4 {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}