:root {
    --primary-color: #1e4d2b;
    --accent-color: #3498db;
    --bg-color: #f4f7f6;
    --text-color: #333;
    --card-bg: #ffffff;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

h1 {
    font-weight: 300;
}

#breadcrumb {
    margin-top: 10px;
}

#breadcrumb a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: bold;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
    padding-bottom: 50px;
}

.folder-card, .image-card {
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.folder-card:hover, .image-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
}

.preview-wrapper {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.preview-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.folder-info, .image-info {
    padding: 15px;
}

.folder-name {
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
}

.item-count {
    font-size: 0.85rem;
    color: #777;
}

.hidden {
    display: none !important;
}

.loader {
    grid-column: 1 / -1;
    text-align: center;
    padding: 50px;
    font-style: italic;
    color: #888;
}

footer {
    text-align: center;
    padding: 2rem;
    color: #888;
    font-size: 0.9rem;
}

.folder-card .preview-wrapper::after {
    content: '📁';
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255,255,255,0.8);
    padding: 5px;
    border-radius: 50%;
    font-size: 1.2rem;
}