.bmi-calculator {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
    color: white;
}

.calculator-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

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

.input-group label {
    display: block;
    color: #333;
    font-weight: 600;
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.input-group input:focus {
    outline: none;
    border-color: #667eea;
}

.bmi-result {
    margin-top: 30px;
    padding: 30px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
}

.result-value {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.result-value .label {
    color: #555;
    font-size: 18px;
    font-weight: 600;
}

.result-value .value {
    font-size: 48px;
    font-weight: 700;
    color: #667eea;
}

.result-status {
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: 700;
    font-size: 20px;
    margin-bottom: 15px;
}

.status-low { background: #e3f2fd; color: #1976d2; }
.status-normal { background: #e8f5e9; color: #388e3c; }
.status-obese1 { background: #fff3e0; color: #f57c00; }
.status-obese2 { background: #ffe0b2; color: #e65100; }
.status-obese3 { background: #ffcdd2; color: #c62828; }

.result-detail {
    color: #555;
    line-height: 1.8;
    font-size: 16px;
}