/**
 * Categories Page Styles
 * Only loaded on index.php
 * 
 * Depends on: common.css (loaded by header.php)
 */

/* Page Header */
.page-header {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px 20px;
    text-align: center;
}

.header-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    letter-spacing: -1px;
    animation: fadeInDown 0.8s ease-out;
}

.header-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    animation: fadeInUp 0.8s ease-out;
}

.header-divider {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--accent-purple), transparent);
    margin: 0 auto;
    border-radius: 2px;
    animation: pulse 2s ease-in-out infinite;
}

/* Main Container */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px 120px;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    animation: fadeIn 1s ease-out;
}

/* Category Card */
.category-card {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    text-decoration: none;
    display: block;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(139, 92, 246, 0.1) 0%, 
        rgba(59, 130, 246, 0.1) 50%, 
        rgba(236, 72, 153, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.category-card:hover::before {
    opacity: 1;
}

.category-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 16px 48px rgba(139, 92, 246, 0.4);
    border-color: rgba(139, 92, 246, 0.3);
}

/* Image Container */
.category-image-wrapper {
    position: relative;
    width: 100%;
    height: 260px;
    overflow: hidden;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

.category-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    filter: brightness(0.9);
}

.category-card:hover .category-image {
    transform: scale(1.15) rotate(2deg);
    filter: brightness(1.1);
}

/* Loading State */
.category-image:not(.loaded) {
    background: linear-gradient(
        90deg,
        #1e293b 0%,
        #334155 50%,
        #1e293b 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

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

/* Fade in loaded images */
.category-image.loaded {
    animation: fadeIn 0.5s ease-out;
}

/* Overlay */
.category-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(15, 23, 42, 0.3) 50%,
        rgba(15, 23, 42, 0.9) 100%
    );
    z-index: 2;
}

/* Category Info */
.category-info {
    position: relative;
    padding: 24px;
    z-index: 3;
}

.category-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.category-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.category-card:hover .category-description {
    opacity: 1;
    transform: translateY(0);
}

/* Explore Button */
.category-explore {
    position: absolute;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    opacity: 0;
    transform: scale(0.5) rotate(-180deg);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 3;
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.4);
}

.category-card:hover .category-explore {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

.category-explore:hover {
    transform: scale(1.1) rotate(0deg);
}

/* Featured Badge */
.category-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: linear-gradient(135deg, var(--accent-orange), #ea580c);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 4;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Empty State */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    animation: fadeIn 1s ease-out;
}

.empty-icon {
    font-size: 80px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    opacity: 0.5;
}

.empty-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.empty-message {
    font-size: 16px;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    max-width: 1400px;
    margin: 60px auto 0;
    padding: 40px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.footer-brand {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-slogan {
    font-size: 14px;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 20px;
}

.footer-contact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-contact a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact a:hover {
    color: var(--accent-purple);
}

.footer-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 18px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border-color: var(--accent-purple);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(139, 92, 246, 0.4);
}

.footer-powered {
    font-size: 13px;
    color: var(--text-secondary);
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.footer-powered a {
    color: var(--accent-purple);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.footer-powered a:hover {
    color: var(--accent-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-header {
        padding: 30px 16px 16px;
    }

    .header-title {
        font-size: 32px;
    }

    .main-container {
        padding: 30px 16px 100px;
    }

    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 16px;
    }

    .category-image-wrapper {
        height: 180px;
    }

    .category-info {
        padding: 16px;
    }

    .category-name {
        font-size: 18px;
    }

    .category-explore {
        width: 40px;
        height: 40px;
        font-size: 16px;
        bottom: 16px;
        right: 16px;
    }

    .footer {
        margin-top: 40px;
        padding: 30px 16px;
    }

    .footer-contact {
        flex-direction: column;
        gap: 12px;
    }
}

@media (min-width: 1600px) {
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}