.drop-zone {
    border: 2px dashed #d1d5db;
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: white;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: #3b82f6;
    background: #eff6ff;
}

.drop-zone p {
    margin: 0;
    color: #6b7280;
}

.drop-zone .browse {
    color: #3b82f6;
    text-decoration: underline;
    cursor: pointer;
}

#file-input {
    display: none;
}

.stats {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.stat-box {
    background: white;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    flex: 1;
    min-width: 150px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stat-box .number {
    font-size: 1.5rem;
    font-weight: 600;
}

.stat-box .label {
    color: #6b7280;
    font-size: 0.875rem;
}

.warning {
    background: #fef3c7;
    border: 1px solid #f59e0b;
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.preview-section {
    margin-top: 2rem;
}

.preview-section h2 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.preview-grid canvas {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}

.hidden {
    display: none;
}