body {
            background-color: #fefdf8;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        }
/*  */
#analysisBtn{
  display: -webkit-box;        /* Safari পুরোনো ভার্সনের জন্য */
  display: -webkit-flex;       
  display: -ms-flexbox;        
  display: flex;

  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;

  -webkit-box-pack: center;
  -webkit-justify-content: center;
      -ms-flex-pack: center;
          justify-content: center;
}
       


/*  */
        .slider-orange {
            -webkit-appearance: none;
            appearance: none;
            height: 8px;
            border-radius: 5px;
            background: #e5e7eb;
            outline: none;
        }
        
        .slider-orange::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: linear-gradient(135deg, #f97316, #ea580c);
            cursor: pointer;
            box-shadow: 0 4px 8px rgba(249, 115, 22, 0.3);
        }
        
        .slider-orange::-moz-range-thumb {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: linear-gradient(135deg, #f97316, #ea580c);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 8px rgba(249, 115, 22, 0.3);
        }
        
        .gradient-btn {
            background: linear-gradient(135deg, #8b5cf6, #7c3aed);
            transition: all 0.3s ease;
        }
        
        .gradient-btn:hover {
            background: linear-gradient(135deg, #7c3aed, #6d28d9);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
        }
        
        .gradient-btn-orange {
            background: linear-gradient(135deg, #f97316, #ea580c);
            transition: all 0.3s ease;
        }
        
        .gradient-btn-orange:hover {
            background: linear-gradient(135deg, #ea580c, #dc2626);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(249, 115, 22, 0.4);
        }
        
        .tooltip {
            position: relative;
            display: inline-block;
        }
        
        .tooltip .tooltiptext {
            visibility: hidden;
            width: 200px;
            background-color: #374151;
            color: white;
            text-align: center;
            border-radius: 6px;
            padding: 8px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            margin-left: -100px;
            opacity: 0;
            transition: opacity 0.3s;
            font-size: 12px;
        }
        
        .tooltip:hover .tooltiptext {
            visibility: visible;
            opacity: 1;
        }
        
        .summary-card {
            background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
            border: 2px solid #10b981;
        }
        
        .card-shadow {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .amortization-row:nth-child(even) {
            background-color: #f9fafb;
        }
        
        .amortization-row:hover {
            background-color: #f3f4f6;
        }

  .chart-container {
      position: relative;
      width: 100%;
      height: auto;
      min-height: 250px;
    }
    canvas {
      max-width: 100% !important;
    }

        .card-shadow {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        
        @keyframes slideIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }