:root {
  /* Light mode colors (default) - Enhanced contrast */
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-header: #ffffff;
  --bg-footer: #2d3748;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --accent-color: #d53f8c;
  --accent-hover: #b83280;
  --border-color: #e2e8f0;
  --border-strong: #cbd5e0;
  --shadow-color: rgba(0, 0, 0, 0.08);
  --shadow-strong: rgba(0, 0, 0, 0.15);
  --overlay-bg: rgba(0, 0, 0, 0.7);
  --modal-bg: #ffffff;
  --input-bg: #ffffff;
  --hover-lightness: 0.98;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark mode colors */
    --bg-primary: #111111;
    --bg-secondary: #1a1a1a;
    --bg-card: #222222;
    --bg-header: #1a1a1a;
    --bg-footer: #1a1a1a;
    --text-primary: #f2f2f2;
    --text-secondary: #cccccc;
    --text-muted: #aaaaaa;
    --accent-color: #ff69b4;
    --accent-hover: #ff85c2;
    --border-color: #333333;
    --border-strong: #444444;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --shadow-strong: rgba(0, 0, 0, 0.6);
    --overlay-bg: rgba(0, 0, 0, 0.8);
    --modal-bg: #222222;
    --input-bg: #1a1a1a;
    --hover-lightness: 1.1;
  }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
}

/* Consistent gradient background for both modes */
body {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
    background-size: 400% 400%;
    animation: gradientShift 20s ease infinite;
    background-attachment: fixed;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.popup-modal img {
    transition: transform 0.1s ease;
    transform-origin: center center;
    cursor: zoom-in;
}

/* Page jump modal styles */
.page-jump-container {
    position: relative;
}

/* Categories grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    padding: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.category-card {
    background: var(--bg-card);
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border: 2px solid var(--border-strong);
    display: block;
    box-shadow: 0 4px 20px var(--shadow-color);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-card:hover {
    background: var(--bg-card);
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 35px var(--shadow-strong);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    filter: drop-shadow(0 2px 4px var(--shadow-color));
}

.category-card h3 {
    margin: 10px 0;
    color: var(--accent-color);
    font-size: 1.4rem;
    font-weight: 700;
}

/* Category navigation */
.category-nav {
    padding: 10px 18px;
    background: var(--bg-card);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border: 2px solid var(--border-strong);
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 2px 8px var(--shadow-color);
}

.category-nav:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-strong);
}

.category-nav.active {
    background: var(--accent-color);
    color: white;
    font-weight: bold;
    border-color: var(--accent-color);
    box-shadow: 0 4px 15px rgba(213, 63, 140, 0.3);
}

/* Image count in category cards */
.image-count {
    margin-top: 10px;
    font-size: 0.8rem;
    color: var(--accent-color);
    font-weight: 700;
    background: rgba(213, 63, 140, 0.1);
    padding: 4px 8px;
    border-radius: 12px;
    display: inline-block;
}

.category-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
    font-weight: 500;
}

/* Category selector in images page */
#categorySelect {
    font-size: 1rem;
    cursor: pointer;
    background: var(--input-bg);
    color: var(--text-primary);
    border: 2px solid var(--border-strong);
    border-radius: 8px;
    padding: 8px 12px;
    font-weight: 500;
}

#categorySelect:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(213, 63, 140, 0.1);
}

.page-jump-container .page-info:hover {
    background: rgba(213, 63, 140, 0.15);
    transition: background 0.3s ease;
}

/* Enhanced pagination styles */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin: 30px 0;
}

.pagination a, .pagination span {
    padding: 10px 16px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    border: 2px solid var(--accent-color);
    font-size: 0.9rem;
}

.pagination a {
    background: var(--bg-card);
    color: var(--accent-color);
    cursor: pointer;
    box-shadow: 0 2px 8px var(--shadow-color);
}

.pagination a:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(213, 63, 140, 0.4);
}

.pagination .disabled {
    background: var(--bg-secondary);
    color: var(--text-muted);
    border-color: var(--border-color);
    cursor: not-allowed;
    box-shadow: none;
}

.page-first, .page-last {
    font-weight: bold;
}

/* Ensure images are properly sized */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

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

/* Home page modal styles - FIXED */
.age-modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: var(--overlay-bg);
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.age-modal-content {
    background-color: var(--modal-bg);
    color: var(--text-primary);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    max-width: 400px;
    width: 85%;
    transform: scale(0.8);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    border: 2px solid var(--border-strong);
    box-shadow: 0 20px 60px var(--shadow-strong);
}

.age-modal.show .age-modal-content {
    transform: scale(1);
    opacity: 1;
}

.age-modal-content h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

.age-modal-content button {
    margin: 10px;
    padding: 12px 30px;
    font-size: 1rem;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px var(--shadow-color);
}

.age-modal-content button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-strong);
}

.yes-btn { 
    background-color: var(--accent-color); 
    color: white; 
}
.yes-btn:hover { 
    background-color: var(--accent-hover); 
}

.no-btn { 
    background-color: #e53e3e; 
    color: white; 
}
.no-btn:hover { 
    background-color: #c53030; 
}

/* Header styles */
header {
    text-align: center;
    padding: 25px 20px;
    background: var(--bg-header);
    position: relative;   /* was sticky */
    z-index: 1;
    border-bottom: 3px solid var(--border-strong);
    box-shadow: 0 4px 20px var(--shadow-color);
}

header h1 {
    margin: 0;
    font-size: 2.2rem;
    font-weight: 700;
    text-shadow: 0 2px 10px var(--shadow-color);
}

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

header a:hover {
    color: var(--accent-hover);
}

/* Main content */
main {
    flex: 1;
    padding: 40px 30px;
}

/* Grid layouts */
.image-grid, .video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 25px;
}

/* Card styles */
.image-card, .video-card {
    position: relative;
    width: 100%;
    aspect-ratio: 1/1;
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-card);
    box-shadow: 0 6px 20px var(--shadow-color);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid var(--border-strong);
}

.image-card:hover, .video-card:hover {
    transform: scale(1.08) rotate(1deg);
    box-shadow: 0 12px 35px var(--shadow-strong);
    border-color: var(--accent-color);
}

.image-card img, .video-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.image-card:hover img, .video-card:hover img {
    transform: scale(1.1);
}

/* Info overlays */
.info-overlay {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: var(--overlay-bg);
    backdrop-filter: blur(10px);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.8rem;
    color: white;
    z-index: 2;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Image/Video popup styles */
.popup {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.popup-modal {
    background: var(--modal-bg);
    border-radius: 16px;
    padding: 20px;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 25px 60px var(--shadow-strong);
    position: relative;
    border: 2px solid var(--border-strong);
}

.popup-modal img, .popup-modal video {
    width: 100%;
    height: auto;
    max-height: 80vh;
    object-fit: contain;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.8rem;
    color: var(--text-primary);
    cursor: pointer;
    background: var(--overlay-bg);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: 2px solid var(--border-strong);
}

.close-btn:hover {
    background: var(--accent-color);
    color: white;
    transform: rotate(90deg);
}

/* Popup controls */
.popup-controls {
    display: flex;
    gap: 20px;
    margin-top: 15px;
    font-size: 1.1rem;
    color: var(--text-primary);
    background: var(--bg-card);
    padding: 12px 20px;
    border-radius: 12px;
    border: 2px solid var(--border-strong);
}

.popup-controls span {
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.popup-controls span:hover {
    background: var(--bg-secondary);
    transform: scale(1.1);
}

.popup-controls .fav.active, 
.popup-controls .active {
    color: #ff4081;
}

.popup-controls .active {
    color: var(--accent-color);
    font-weight: bold;
}

/* Arrow buttons */
.arrow-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2.5rem;
    background: var(--overlay-bg);
    border: 2px solid var(--border-strong);
    color: var(--text-primary);
    padding: 15px 20px;
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.arrow-btn:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-50%) scale(1.1);
}

.arrow-left { left: 20px; }
.arrow-right { right: 20px; }

/* Pagination */
.pagination {
    text-align: center;
    margin: 40px 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.pagination a, .pagination span {
    padding: 12px 20px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    border: 3px solid var(--accent-color);
    font-size: 1rem;
}

.pagination a {
    background: var(--bg-card);
    color: var(--accent-color);
    cursor: pointer;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.pagination a:hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(213, 63, 140, 0.4);
}

.pagination .current-page {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 4px 15px rgba(213, 63, 140, 0.3);
}

.pagination .disabled {
    background: var(--bg-secondary);
    color: var(--text-muted);
    border-color: var(--border-color);
    cursor: not-allowed;
    box-shadow: none;
}

.pagination .disabled:hover {
    background: var(--bg-secondary);
    color: var(--text-muted);
    transform: none;
    box-shadow: none;
}

.page-info {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin: 0 15px;
    font-weight: 600;
    background: var(--bg-card);
    padding: 10px 20px;
    border-radius: 10px;
    border: 2px solid var(--border-strong);
}

/* Legal page specific */
.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.section {
    margin-bottom: 40px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 16px;
    border-left: 6px solid var(--accent-color);
    box-shadow: 0 8px 30px var(--shadow-color);
    border: 2px solid var(--border-strong);
}

.section h2 {
    color: var(--accent-color);
    margin-top: 0;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 15px;
    font-weight: 700;
    font-size: 1.8rem;
}

.warning-box {
    background: linear-gradient(135deg, rgba(229, 62, 62, 0.1) 0%, rgba(229, 62, 62, 0.05) 100%);
    border: 2px solid rgba(229, 62, 62, 0.3);
    border-radius: 12px;
    padding: 25px;
    margin: 25px 0;
    box-shadow: 0 4px 15px rgba(229, 62, 62, 0.1);
    color: var(--text-primary);
}

.info-box {
    background: linear-gradient(135deg, rgba(213, 63, 140, 0.1) 0%, rgba(213, 63, 140, 0.05) 100%);
    border: 2px solid rgba(213, 63, 140, 0.3);
    border-radius: 12px;
    padding: 25px;
    margin: 25px 0;
    box-shadow: 0 4px 15px rgba(213, 63, 140, 0.1);
    color: var(--text-primary);
}

/* Home page specific */
.page-header {
    width: 100%;
    background-color: var(--bg-header);
    text-align: center;
    padding: 60px 20px;
    box-sizing: border-box;
    border-bottom: 3px solid var(--border-strong);
    box-shadow: 0 8px 30px var(--shadow-color);
}

.page-header .main-header {
    font-size: 3.5rem;
    margin: 0;
    letter-spacing: 1px;
    text-shadow: 0 4px 15px var(--shadow-color);
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeSlideIn 1s forwards;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header .sub-header {
    font-size: 1.3rem;
    margin-top: 20px;
    color: var(--text-secondary);
    opacity: 0;
    transform: translateY(-10px);
    animation: fadeSlideIn 1s forwards 0.5s;
    font-weight: 500;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

@keyframes fadeSlideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.buttons {
    display: flex;
    gap: 50px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 60px 0;
}

.button {
    position: relative;
    width: 280px;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    font-weight: 700;
    text-decoration: none;
    color: white;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s ease;
    border: 3px solid var(--border-strong);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.button:hover {
    transform: scale(1.08) rotate(2deg);
    box-shadow: 0 20px 50px var(--shadow-strong);
    border-color: var(--accent-color);
}

.button::before {
    content: "";
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center; 
    filter: blur(12px) brightness(0.7);
    z-index: 0;
    transition: all 0.4s ease;
    background-image: var(--bg-img);
}

.button:hover::before {
    filter: blur(8px) brightness(0.8);
    transform: scale(1.1);
}

.button span {
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    font-weight: 800;
}

/* Footer */
footer {
    background: var(--bg-footer);
    text-align: center;
    font-size: 1rem;
    padding: 40px 20px;
    color: var(--text-primary);
    line-height: 1.7;
    border-top: 3px solid var(--accent-color);
}

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

footer a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

footer p {
    margin: 10px 0;
}

/* Utility classes */
.text-center { text-align: center; }
.mb-20 { margin-bottom: 20px; }
.mt-20 { margin-top: 20px; }
.hidden { display: none; }

/* Light mode specific enhancements */
@media (prefers-color-scheme: light) {
    .category-card,
    .image-card,
    .video-card {
        background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    }
    
    .section {
        background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    }
    
    .popup-controls {
        background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    }
    
    .button {
        border: 3px solid var(--accent-color);
    }
    
    footer {
        background: #2d3748;
        color: white;
    }
    
    footer a {
        color: #ffa7c4;
    }
    
    footer a:hover {
        color: white;
    }
}

/* Dark mode footer adjustment */
@media (prefers-color-scheme: dark) {
    footer {
        background: var(--bg-footer);
        border-top: 3px solid var(--accent-color);
    }
    
    footer a {
        color: var(--accent-color);
    }
    
    footer a:hover {
        color: var(--accent-hover);
    }
}