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

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
        Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

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

.header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    margin-bottom: 20px;
}

.upload-area {
    border: 3px dashed #667eea;
    border-radius: 12px;
    padding: 60px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: #f8f9fa;
}

.upload-area:hover {
    border-color: #764ba2;
    background: #e9ecef;
}

.upload-area.dragover {
    background: #e9ecef;
    border-color: #764ba2;
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.upload-text {
    font-size: 1.3rem;
    color: #495057;
    margin-bottom: 10px;
}

.upload-hint {
    color: #6c757d;
    font-size: 0.9rem;
}

.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.metadata-item {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.metadata-label {
    font-size: 0.85rem;
    color: #6c757d;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metadata-value {
    font-size: 1.3rem;
    font-weight: 600;
    color: #212529;
}

.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.error {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #f5c6cb;
    margin-bottom: 20px;
}

#parquet-table {
    margin-top: 20px;
}

.hidden {
    display: none;
}

.schema-toggle {
    cursor: pointer;
    color: #667eea;
    font-weight: 600;
    margin-top: 15px;
    display: inline-block;
}

.schema-toggle:hover {
    text-decoration: underline;
}

.schema-content {
    margin-top: 15px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.schema-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #dee2e6;
}

.schema-name {
    font-family: "Courier New", monospace;
    font-weight: 600;
}

.schema-type {
    color: #6c757d;
    font-size: 0.9rem;
}

.stats-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.stats-table th {
    background: #e9ecef;
    padding: 10px;
    text-align: right; /* <- hinzufügen */
    font-weight: 600;
    border-bottom: 2px solid #dee2e6;
    position: sticky;
    top: 0;
}

.stats-table th:first-child {
    text-align: left; /* <- hinzufügen, damit "Spalte" links bleibt */
}

.stats-table td {
    padding: 8px 10px;
    border-bottom: 1px solid #dee2e6;
}

.stats-table td:first-child {
    font-family: "Courier New", monospace;
    font-weight: 600;
}

.stats-table td:not(:first-child) {
    text-align: right;
    font-family: "Courier New", monospace;
    font-size: 0.85rem;
}