/* Reset e base */
.calculator-container {
    max-width: 500px;
    margin: 20px auto;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.calculator-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 25px;
    text-align: center;
}

.calculator-header h3 {
    margin: 0 0 8px 0;
    font-size: 24px;
    font-weight: 600;
    color: white;
}

.calculator-header p {
    margin: 0;
    opacity: 0.9;
    font-size: 14px;
}

.calculator-form {
    padding: 30px;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    font-size: 14px;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

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

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 25px;
}

.btn-calcular, .btn-limpar {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-calcular {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
}

.btn-calcular:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

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

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

.resultado-container {
    padding: 0 30px 30px;
}

.resultado {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
    border-left: 4px solid #28a745;
}

.resultado.sobrepeso {
    border-left-color: #ffc107;
    background: #fff3cd;
}

.resultado.obesidade {
    border-left-color: #dc3545;
    background: #f8d7da;
}

.resultado h4 {
    margin: 0 0 10px 0;
    color: #333;
}

.imc-valor {
    font-size: 28px;
    font-weight: bold;
    color: #28a745;
    margin: 10px 0;
}

.classificacao {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
}

.recomendacao {
    font-size: 14px;
    line-height: 1.5;
    color: #666;
}

/* Responsividade */
@media (max-width: 768px) {
    .calculator-container {
        margin: 10px;
        border-radius: 8px;
    }
    
    .calculator-form {
        padding: 20px;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .btn-calcular, .btn-limpar {
        margin-bottom: 10px;
    }
}