#Db_Calculator{
            margin-bottom: 2rem;
        }

        .Db_calculator-container {
            background: #2a2d30;
            backdrop-filter: blur(10px);
            border-radius: 6px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgb(12 12 12 / 72%);
        }

        .Db_calculator-header {
            background: linear-gradient(135deg, #f9a321, #d7a65e);
            color: white;
            padding: 1rem;
            border-radius: 6px 6px 0px 0px;
        }

        .Db_calculator-header h2 {
            margin: 0;
            font-size: 2.2rem;
            font-weight: 600;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .calculator-body {
            padding: 0.5rem;
        }

        .input-group-custom {
            margin-bottom: 1.5rem;
        }

        .input-group-custom label {
            font-weight: 600;
            color: #d3d3d3;
            margin-bottom: 8px;
            display: block;
            font-size: 0.9rem;
        }

        .input-with-unit {
            display: flex;
            gap: 0.5rem;
        }

        .form-control {
            background-color: #3c3f42 !important;
            color: #ccc !important;
            border: 1px solid #495057 !important;
            border-radius: 5px !important;
        }

        .form-control::placeholder {
            color: #a0aec0;
            opacity: 1;
        }

        .readonly-field::placeholder {
            color: #eeeeee;
            opacity: 1;
        }

        .form-control:focus {
            border-color: #4facfe;
            box-shadow: 0 0 0 0.2rem rgba(79, 172, 254, 0.25);
        }

        .form-select {
            background-color: #3c3f42 !important;
            color: #ccc !important;
            border: 1px solid #495057 !important;
            border-radius: 5px !important;
            box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0) !important;
            width: 45%;
        }

        .form-select:focus {
            border-color: #4facfe;
            box-shadow: 0 0 0 0.2rem rgba(79, 172, 254, 0.25);
        }

        .btn-calculate {
            background: linear-gradient(135deg, #ff8e22 0%, #e1b37c 100%);
            border: none;
            color: white;
            padding: 1rem 2rem;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
        }

        .btn-calculate:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.6);
            color: white;
        }

        .btn-reset {
            background: linear-gradient(135deg, #ff7b7b 0%, #ff9a9e 100%);
            border: none;
            color: white;
            padding: 1rem 2rem;
            border-radius: 5px;
            font-size: 1.1rem;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255, 123, 123, 0.4);
        }

        .btn-reset:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 123, 123, 0.6);
            color: white;
        }

        .button-group {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin: 10px 0;
        }

        .calculation-steps {
            background: #f8f9fa;
            border-radius: 15px;
            padding: 1.5rem;
            margin-top: 2rem;
            border-left: 5px solid #4facfe;
        }

        .calculation-steps h4 {
            color: #333;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .step-content {
            line-height: 1.6;
            color: #555;
        }

        .alert-custom {
            border-radius: 15px;
            border: none;
            padding: 1rem 1.5rem;
            margin-bottom: 1rem;
        }

        .readonly-field {
            cursor: not-allowed;
            background: linear-gradient(135deg, #24b1ae, #ffc672);
        }

        .instruction-text {
            background: linear-gradient(135deg, #ffeaa7 0%, #fab1a0 100%);
            color: #2d3436;
            padding: 1rem;
            border-radius: 3px;
            margin-bottom: 2rem;
            text-align: center;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .calculator-body {
                padding: 1.5rem;
            }

            .input-with-unit {
                flex-direction: column;
            }

            .form-select {
                min-width: 100%;
            }

            .btn-calculate,
            .btn-reset {
                width: 100%;
                margin-bottom: 0.5rem;
            }
        }