:root {
    --success: 142 76% 36%;
    --error: 0 84% 60%;
}

.upload-section, .result-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.upload-zone {
    border: 2px dashed hsl(var(--border));
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    background: hsl(var(--card));
    cursor: pointer;
    transition: all 0.2s;
}

.upload-zone:hover {
    border-color: hsl(var(--primary));
    background: hsl(var(--secondary));
}

.upload-zone.drag-over {
    border-color: hsl(var(--primary));
    background: hsl(var(--primary) / 0.05);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.upload-text {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 8px;
}

.upload-hint {
    font-size: 13px;
    color: hsl(var(--muted-foreground));
}

.file-input {
    display: none;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid hsl(var(--border));
    background: hsl(var(--card));
}

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

.preview-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: hsl(0 0% 0% / 0.7);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.2s;
}

.preview-remove:hover {
    background: hsl(var(--error));
}

.preview-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: hsl(0 0% 0% / 0.7);
    padding: 8px;
    font-size: 11px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.button-primary {
    background: hsl(var(--primary));
    color: hsl(0 0% 10%);
    width: 100%;
    padding: 12px;
    font-size: 16px;
}

.button-primary:hover:not(:disabled) {
    background: hsl(var(--primary) / 0.9);
}

.button-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.button-secondary {
    background: hsl(var(--secondary));
    color: hsl(var(--secondary-foreground));
    border: 1px solid hsl(var(--border));
}

.button-secondary:hover {
    background: hsl(var(--secondary) / 0.8);
}

.result-card {
    border: 1px solid hsl(var(--border));
    border-radius: 8px;
    padding: 20px;
    background: hsl(var(--card));
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.result-title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: hsl(var(--muted-foreground));
}

.result-content {
    background: hsl(var(--input));
    border: 1px solid hsl(var(--border));
    border-radius: 6px;
    padding: 12px;
    font-size: 13px;
    line-height: 1.6;
    word-break: break-all;
    max-height: 400px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
}

.result-content.empty {
    color: hsl(var(--muted-foreground));
    font-style: italic;
    text-align: center;
    padding: 40px 12px;
}

.result-urls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.url-item {
    padding: 8px 12px;
    background: hsl(var(--secondary));
    border-radius: 4px;
    font-size: 12px;
    word-break: break-all;
    border: 1px solid hsl(var(--border));
}

.alert {
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 20px;
}

.alert-success {
    background: hsl(var(--success) / 0.1);
    color: hsl(var(--success));
    border: 1px solid hsl(var(--success) / 0.3);
}

.alert-error {
    background: hsl(var(--error) / 0.1);
    color: hsl(var(--error));
    border: 1px solid hsl(var(--error) / 0.3);
}

.alert.hidden {
    display: none;
}

.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid hsl(var(--border));
    border-top-color: hsl(var(--primary));
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.copy-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid hsl(var(--border));
}

.stats {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.stat-item {
    flex: 1;
    padding: 16px;
    background: hsl(var(--secondary));
    border-radius: 6px;
    border: 1px solid hsl(var(--border));
}

.stat-label {
    font-size: 12px;
    color: hsl(var(--muted-foreground));
    margin-bottom: 4px;
}

.stat-value {
    font-size: 24px;
    font-weight: 600;
}

@media (max-width: 768px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }

    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}