/*VIBECODED*/
:root {
    --bg-color: #ffffff;
    --text-color: #111111;
    --accent-color: #0066ff;
    --card-bg: #f4f4f4;
    --border-color: #ddd;
    --sidebar-width: 280px;
}

[data-theme="dark"] {
    --bg-color: #121212;
    --text-color: #f1f1f1;
    --accent-color: #3b82f6;
    --card-bg: #1e1e1e;
    --border-color: #333;
}

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

body {
    font-family: system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s, color 0.3s;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}

.tabs-nav {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
}

.tab-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.2s;
}

.tab-btn.active, .tab-btn:hover {
    background-color: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
}

.header-controls {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
}

.btn-icon:hover {
    border-color: var(--accent-color);
}

.layout-container {
    display: flex;
    flex: 1;
    position: relative;
}

.sidebar {
    width: var(--sidebar-width);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem;
    background-color: var(--bg-color);
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(-1 * var(--sidebar-width));
    transition: left 0.3s ease;
    z-index: 50;
}

.sidebar.open {
    left: 0;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.filter-group {
    margin-bottom: 1.5rem;
}

.filter-group h4 {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-color);
}

.filter-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
    font-size: 0.95rem;
    cursor: pointer;
}

.content {
    flex: 1;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mosaic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.mosaic-item {
    background-color: var(--card-bg);
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    cursor: pointer;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

.mosaic-item:hover {
    transform: translateY(-3px);
    border-color: var(--accent-color);
}

.mosaic-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

.pagination-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
}

.page-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
}

.page-btn:hover:not(:disabled) {
    background-color: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.lightbox.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

#lightbox-caption {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    color: #ffffff;
    font-size: 0.9rem;
    font-family: monospace;
    background: rgba(0, 0, 0, 0.75);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    letter-spacing: 1px;
    z-index: 1100;
    pointer-events: none;
    white-space: nowrap;
}

.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    image-rendering: auto; 
}

.lightbox img.pixelated-upscale {
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    transform-origin: center;
}

.lightbox img.scale-x2 { transform: scale(2); }
.lightbox img.scale-x4 { transform: scale(4); }
.lightbox img.scale-x8 { transform: scale(8); }
.lightbox img.scale-x16 { transform: scale(16); }

.lightbox-btn {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    font-size: 2rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 4px;
    z-index: 20;
}

.lightbox-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

#lightbox-close { top: 20px; right: 20px; }
#lightbox-prev { left: 20px; top: 50%; transform: translateY(-50%); }
#lightbox-next { right: 20px; top: 50%; transform: translateY(-50%); }

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    width: 320px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-content label {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.9rem;
}

.modal-content select, .modal-content input[type="color"], .modal-content input[type="number"] {
    padding: 0.4rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
}

.btn-primary {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    padding: 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}