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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    color: #2c3e50;
    margin-bottom: 8px;
}

header p {
    color: #7f8c8d;
    font-size: 14px;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 20px;
}

.panel {
    background: white;
    padding: 24px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.panel h2 {
    color: #2c3e50;
    margin-bottom: 16px;
    font-size: 18px;
}

.panel h3 {
    color: #34495e;
    margin-bottom: 8px;
    font-size: 14px;
}

.upload-panel {
    grid-column: 1;
    grid-row: 1;
}

.processed-panel {
    grid-column: 2;
    grid-row: 1;
}

.output-panel {
    grid-column: 1 / -1;
    grid-row: 2;
}

.upload-section {
    margin-bottom: 24px;
}

.upload-section.direct-upload {
    border-top: 2px solid #e8e8e8;
    padding-top: 20px;
}

.help-text {
    font-size: 12px;
    color: #7f8c8d;
    margin-bottom: 8px;
}

input[type="file"] {
    display: block;
    margin-bottom: 12px;
    padding: 8px;
    width: 100%;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    background: #3498db;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s;
}

button:hover {
    background: #2980b9;
}

button:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
}

#onboardBtn {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    background: #27ae60;
    margin-top: 16px;
}

#onboardBtn:hover:not(:disabled) {
    background: #229954;
}

.status {
    margin-top: 12px;
    padding: 8px;
    border-radius: 4px;
    font-size: 13px;
}

.status.success {
    background: #d4edda;
    color: #155724;
}

.status.error {
    background: #f8d7da;
    color: #721c24;
}

.status.info {
    background: #d1ecf1;
    color: #0c5460;
}

.file-list {
    max-height: 300px;
    overflow-y: auto;
}

.file-item {
    padding: 12px;
    margin-bottom: 8px;
    background: #ecf0f1;
    border-radius: 4px;
    border-left: 4px solid #3498db;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-item-info {
    flex: 1;
}

.file-item strong {
    display: block;
    margin-bottom: 4px;
    color: #2c3e50;
}

.file-item small {
    color: #7f8c8d;
}

.download-btn {
    background: #9b59b6;
    padding: 6px 12px;
    font-size: 12px;
    margin-left: 12px;
    flex-shrink: 0;
}

.download-btn:hover {
    background: #8e44ad;
}

.output-area {
    background: #ecf0f1;
    padding: 16px;
    border-radius: 4px;
    min-height: 200px;
    max-height: 500px;
    overflow-y: auto;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    white-space: pre-wrap;
}

.result-section {
    margin-bottom: 16px;
}

.result-section h3 {
    color: #27ae60;
    margin-bottom: 8px;
}

.warning {
    color: #e67e22;
}

.error {
    color: #e74c3c;
}

.db-link {
    display: inline-block;
    margin-top: 12px;
    padding: 8px 16px;
    background: #9b59b6;
    color: white;
    text-decoration: none;
    border-radius: 4px;
}

.db-link:hover {
    background: #8e44ad;
}