:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    line-height: 1.5;
    font-size: 16px;
    /* Default size for better legibility */
}

@media (max-width: 640px) {
    body {
        font-size: 15px;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem 2rem 1rem;
}

nav {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    flex-wrap: wrap;
    /* Added for mobile */
    gap: 0.5rem;
}

@media (max-width: 640px) {
    nav {
        flex-direction: column;
        padding: 0.75rem 1rem;
    }
}

nav .nav-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

nav a {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    margin-left: 0;
    /* Changed from 1.5rem for flexbox gap */
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 640px) {
    .card {
        padding: 1.25rem;
        border-radius: 8px;
    }
}

.btn {
    background: var(--primary);
    color: white;
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: #64748b;
}

.btn-danger {
    background: #ef4444;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    box-sizing: border-box;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
}

@media (max-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .container {
        padding: 1rem;
    }
}

.photo-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
}

.photo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

.photo-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--border);
}

.photo-info {
    padding: 0.75rem 1rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.photo-info .category-badge {
    display: inline-block;
    background: #f1f5f9;
    color: var(--text-light);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
}

.photo-info h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--text);
    line-height: 1.2;
}

.photo-info p {
    color: var(--text-light);
    font-size: 0.8rem;
    margin: 0;
}

.compact-actions {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

.compact-actions .btn-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 1px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    padding: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.compact-actions .btn-view {
    background: #10b981;
    color: white !important;
}

.compact-actions .btn-view:hover {
    background: #059669;
    transform: scale(1.1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.compact-actions .btn-delete {
    background: #ef4444;
    color: white !important;
}

.compact-actions .btn-delete:hover {
    background: #dc2626;
    transform: scale(1.1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Ensure tables in cards scroll horizontally and don't wrap long text */
.card table {
    white-space: nowrap;
}

/* =========================
   loading overlay
========================= */
#loadingLayer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    background: rgba(0, 0, 0, 0.35);
    z-index: 9999;

    display: none;

    justify-content: center;
    align-items: center;
}

#loadingLayer img {
    width: 120px;
}