/* Athena Dashboard Generator - Main Styles */
.athena-dashboard-builder {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: #f8f9fa;
    min-height: 100vh;
}

.athena-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    text-align: center;
}

.athena-header h1 {
    margin: 0 0 0.5rem 0;
    font-size: 2.5rem;
    font-weight: 700;
}

.athena-header p {
    margin: 0;
    opacity: 0.9;
    font-size: 1.1rem;
}

.upload-section {
    background: white;
    border: 2px dashed #dee2e6;
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.upload-section.dragover {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.upload-area {
    max-width: 400px;
    margin: 0 auto;
}

.upload-icon {
    font-size: 4rem;
    color: #6c757d;
    margin-bottom: 1rem;
}

.upload-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.upload-btn:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.drop-hint {
    margin-top: 1rem;
    color: #6c757d;
    font-size: 0.9rem;
}

#dataPreview {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

#chartBuilder {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid #e9ecef;
}

.theme-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-selector label {
    font-weight: 600;
    color: #495057;
}

.export-actions {
    display: flex;
    gap: 0.75rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background: #218838;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.chart-builder-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
}

.chart-config-panel {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
}

.chart-preview-panel {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
}

.config-section {
    margin-bottom: 1.5rem;
}

.config-group {
    margin-bottom: 1rem;
}

.config-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #495057;
}

.config-group select,
.config-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
}

.config-group select:focus,
.config-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

#chartPreview {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Data Table Styles */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #495057;
}

.data-table tr:hover {
    background: #f8f9fa;
}

/* Loading State */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

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

/* Notifications */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    z-index: 10000;
    animation: slideInRight 0.3s ease;
}

.notification.success {
    background: #28a745;
}

.notification.error {
    background: #dc3545;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .chart-builder-container {
        grid-template-columns: 1fr;
    }
    
    .action-bar {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .export-actions {
        justify-content: center;
    }
}