/* CSS MINIMAL POUR TEST */
        .calculator-container {
            max-width: 600px;
            margin: 2rem auto;
            padding: 2rem;
            background: white;
            border: 1px solid #ddd;
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        
        .calculator-title {
            text-align: center;
            color: #8b5cf6;
            font-size: 1.8rem;
            margin-bottom: 1rem;
        }
        
        .calculator-subtitle {
            text-align: center;
            color: #666;
            margin-bottom: 2rem;
            font-style: italic;
        }
        
        .date-label {
            display: block;
            font-weight: bold;
            margin-bottom: 1rem;
            text-align: center;
        }
        
        .date-inputs {
            display: flex;
            gap: 1rem;
            margin-bottom: 1rem;
            justify-content: center;
        }
        
        .date-input {
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 8px;
            text-align: center;
            font-size: 1rem;
            width: 120px;
        }
        
        .date-input:focus {
            border-color: #8b5cf6;
            outline: none;
        }
        
        .date-info-box {
            background: #f0f0f0;
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            text-align: center;
            color: #666;
        }
        
        .calculate-button {
            width: 100%;
            background: #8b5cf6;
            color: white;
            border: none;
            padding: 1rem;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            margin-bottom: 1rem;
        }
        
        .calculate-button:hover {
            background: #7c3aed;
        }
        
        .error-message {
            background: #fee;
            color: #d00;
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            text-align: center;
            display: none;
        }
        
        .result-section {
            background: #f9f9f9;
            padding: 2rem;
            border-radius: 8px;
            margin-top: 1rem;
            text-align: center;
            display: none;
        }
        
        .result-number {
            font-size: 3rem;
            color: #8b5cf6;
            font-weight: bold;
            margin-bottom: 1rem;
        }
        
        .result-title {
            font-size: 1.5rem;
            color: #333;
            margin-bottom: 1rem;
        }
        
        .result-description {
            color: #666;
            line-height: 1.5;
            margin-bottom: 1rem;
        }
        
        .calculation-steps {
            background: white;
            padding: 1rem;
            border-radius: 8px;
            margin-top: 1rem;
            text-align: left;
        }
        
        .steps-title {
            font-weight: bold;
            margin-bottom: 0.5rem;
            text-align: center;
        }
        
        .steps-content {
            font-family: monospace;
            background: #f5f5f5;
            padding: 1rem;
            border-radius: 4px;
            white-space: pre-line;
        }
        
        .debug-info {
            background: #fff3cd;
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
            font-family: monospace;
            font-size: 0.9rem;
        }