/* Catalog Page Styles - Dark Luxury Aesthetic */

/* CSS Variables */
:root {
    --color-black: #0a0a0a;
    --color-dark-grey: #141414;
    --color-medium-grey: #1a1a1a;
    --color-light-grey: #2a2a2a;
    --color-white: #ffffff;
    --color-accent: #ffffff;
    
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: 10px;
    
    --shadow-glow: 0 0 30px rgba(255, 255, 255, 0.05);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--color-black);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Loading Screen - Cinematic Intro */
#loadingScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-black);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loadingScreen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.loading-logo {
    width: 100px;
    height: 100px;
    margin-bottom: 40px;
    object-fit: contain;
    filter: drop-shadow(0 0 30px rgba(255, 255, 255, 0.1));
    opacity: 0;
    animation: logoFadeIn 0.8s ease 0.3s forwards;
}

.loading-text {
    opacity: 0;
    animation: textFadeIn 0.8s ease 0.6s forwards;
}

.loading-line-1 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-white);
    margin-bottom: 10px;
    opacity: 0;
    animation: lineFadeIn 0.6s ease 0.9s forwards;
}

.loading-line-2 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-white);
    opacity: 0;
    animation: lineFadeIn 0.6s ease 1.1s forwards;
}

/* Cinematic Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes logoFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes textFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes lineFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.glow-effect {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 8s ease-in-out infinite;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 15s infinite;
}

/* Container */
.container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 30px;
    z-index: 1;
}

/* Catalog Header */
.catalog-header {
    margin-bottom: 50px;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.header-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.back-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all var(--transition-medium);
}

.back-link:hover {
    opacity: 0.7;
}

.back-link svg {
    width: 20px;
    height: 20px;
}

.catalog-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-align: center;
    flex: 1;
}

.header-spacer {
    width: 80px;
}

.catalog-subtitle {
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 20px;
}

/* Category Filter */
.category-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.category-btn {
    padding: 12px 28px;
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--color-white);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-medium);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
}

.category-btn:hover {
    background: var(--glass-bg);
    border-color: rgba(255, 255, 255, 0.2);
}

.category-btn.active {
    background: var(--color-white);
    color: var(--color-black);
    border-color: var(--color-white);
}

/* Products Section */
.products-section {
    animation: fadeInUp 0.6s ease 0.5s both;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* Product Card */
.product-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    transition: all var(--transition-medium);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-glow);
}

.product-image {
    aspect-ratio: 1;
    background: var(--color-dark-grey);
    overflow: hidden;
    position: relative;
}

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

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, transparent 50%);
}

.product-placeholder span {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.3);
    text-transform: uppercase;
}

.product-info {
    padding: 20px;
}

.product-category {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 8px;
}

.product-name {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    line-height: 1.4;
}

.product-description {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 12px;
    line-height: 1.5;
}

.product-cta {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 8px;
    transition: all var(--transition-medium);
}

.product-card:hover .product-cta {
    color: var(--color-white);
    transform: translateX(4px);
}

/* Footer */
.catalog-footer {
    text-align: center;
    padding: 60px 20px 30px;
    margin-top: 80px;
    animation: fadeInUp 0.6s ease 0.6s both;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--color-white);
    text-decoration: none;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    transition: all var(--transition-medium);
}

.footer-social-link:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-4px);
}

.footer-social-link svg {
    width: 20px;
    height: 20px;
    stroke: var(--color-white);
}

.footer-text {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 8px;
    letter-spacing: 0.1em;
}

.footer-tagline {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-200px) translateX(-50px);
        opacity: 0.3;
    }
    75% {
        transform: translateY(-100px) translateX(-100px);
        opacity: 0.5;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-dark-grey);
}

::-webkit-scrollbar-thumb {
    background: var(--color-light-grey);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 40px 20px;
    }
    
    .catalog-title {
        font-size: 2rem;
    }
    
    .header-nav {
        flex-direction: column;
        gap: 20px;
    }
    
    .header-spacer {
        display: none;
    }
    
    .back-link {
        align-self: flex-start;
    }
    
    .category-filter {
        gap: 8px;
    }
    
    .category-btn {
        padding: 10px 20px;
        font-size: 0.75rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .catalog-title {
        font-size: 1.8rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .category-btn {
        padding: 10px 16px;
        font-size: 0.7rem;
    }
}