// Chart container structure
.chart-container {
  height: 100%;
  display: flex;
  flex-direction: column;
  
  // Filter section styling
  .filter-section {
    margin-bottom: 20px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f9f9f9;
  }

  .filter-group {
    margin-bottom: 15px;
    
    h4 {
      margin-top: 0;
      margin-bottom: 10px;
      color: #333;
      font-weight: 600;
    }
  }

  .filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
  }

  .filter-item {
    flex: 1 1 300px;
    min-width: 250px;
    padding: 10px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
  }

  .filter-label {
    font-weight: 500;
    margin-bottom: 8px;
    color: #555;
    font-size: 14px;
  }

  .filter-input {
    width: 100%;
    
    .filter-text-input,
    .filter-select,
    .filter-date {
      width: 100%;
      padding: 6px 12px;
      border: 1px solid #ccc;
      border-radius: 4px;
      font-size: 14px;
    }
    
    .filter-select {
      height: 34px;
    }
  }

  .multiselect-container {
    position: relative;
  }

  .multiselect-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: white;
    cursor: pointer;
    min-height: 34px;
    
    .multiselect-label {
      flex: 1;
      font-size: 14px;
    }
    
    .multiselect-value {
      color: #666;
      font-size: 12px;
      margin-right: 8px;
    }
    
    .dropdown-icon {
      flex-shrink: 0;
      transition: transform 0.2s ease;
    }
    
    &:hover {
      border-color: #999;
    }
  }

  .multiselect-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 1000;
    background: white;
    border: 1px solid #ccc;
    border-top: none;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-height: 200px;
    overflow-y: auto;
    
    .checkbox-group {
      padding: 8px;
      
      .checkbox-item {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 4px 0;
        
        .checkbox-label {
          margin: 0;
          font-size: 14px;
          cursor: pointer;
        }
      }
    }
  }

  .date-range {
    .date-input-group {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    .date-separator {
      margin: 0 5px;
      color: #777;
    }
  }

  .toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    
    .toggle-label {
      margin: 0;
      font-size: 14px;
      cursor: pointer;
    }
  }

  .filter-actions {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
    
    .btn {
      font-size: 13px;
    }
  }
  
  // Chart header styling
  .chart-header {
    margin-bottom: 20px;
    
    .header-row {
      margin-bottom: 15px;
      padding-bottom: 10px;
      border-bottom: 1px solid #eee;
      
      .chart-title {
        margin: 0;
        font-size: 18px;
        font-weight: 600;
        color: #333;
      }
    }
  }
  
  // Chart wrapper and content
  .chart-wrapper {
    flex: 1;
    position: relative;
    
    .chart-content {
      position: relative;
      height: 100%;
      min-height: 300px; // Ensure minimum height for chart
      
      &.loading {
        opacity: 0.7;
        
        .chart-display {
          filter: blur(2px);
        }
      }
      
      .no-data-message {
        text-align: center;
        padding: 20px;
        color: #666;
        font-style: italic;
      }
      
      .chart-display {
        position: relative;
        height: 100%;
        width: 100%;
        max-width: 100%;
        max-height: 100%;
        transition: filter 0.3s ease;
      }
      
      .loading-overlay {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.8);
        
        .shimmer-bar {
          width: 80%;
          height: 20px;
          background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
          background-size: 200% 100%;
          animation: shimmer 1.5s infinite;
          border-radius: 4px;
        }
      }
    }
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

// Responsive design
@media (max-width: 768px) {
  .chart-container {
    .filter-controls {
      flex-direction: column;
    }
    
    .filter-item {
      min-width: 100%;
    }
    
    .chart-header {
      .header-row {
        .chart-title {
          font-size: 16px;
        }
      }
    }
    
    .chart-content {
      min-height: 250px; // Adjust for mobile
    }
  }
}