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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #0a0a0a;
    color: #fff;
    min-height: 100vh;
}

header {
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid #222;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.subtitle {
    color: #666;
    font-size: 0.875rem;
}

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: #111;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #222;
    transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    border-color: #333;
}

.card-image {
    aspect-ratio: 16/10;
    overflow: hidden;
    cursor: pointer;
    background: #0a0a0a;
}

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

.card:hover .card-image img {
    transform: scale(1.02);
}

.card-info {
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #222;
}

.card-date {
    font-size: 0.75rem;
    color: #666;
}

.card-actions {
    display: flex;
    gap: 0.25rem;
}

.action-btn {
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: background 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background: #222;
    color: #fff;
}

.delete-btn:hover {
    background: #3a1a1a;
    color: #f66;
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    color: #666;
    padding: 4rem;
}

.empty {
    text-align: center;
    padding: 4rem;
    color: #666;
}

.empty p {
    margin-bottom: 0.5rem;
}

.empty .hint {
    font-size: 0.875rem;
    color: #444;
}

.error {
    grid-column: 1 / -1;
    text-align: center;
    color: #f44;
    padding: 2rem;
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 1000;
    cursor: zoom-out;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    font-size: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    background: #222;
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 0.875rem;
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
    z-index: 1001;
}

.toast.active {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Responsive */
@media (max-width: 640px) {
    header {
        padding: 1.5rem 1rem;
    }

    main {
        padding: 1rem;
    }

    .gallery {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}