/* BMI Calculator Styles */
.sth-bmi-calculator {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    margin: 0 auto;
}

.sth-bmi-input-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.sth-bmi-input-group {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    border: 2px solid #e9ecef;
}

.sth-bmi-input-group h3 {
    margin: 0 0 20px 0;
    color: #333;
    font-size: 20px;
    text-align: center;
}

.sth-bmi-unit-toggle {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: center;
}

.sth-bmi-unit-toggle label {
    cursor: pointer;
    padding: 10px 20px;
    border-radius: 25px;
    background: #e9ecef;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 600;
    border: 2px solid transparent;
}

.sth-bmi-unit-toggle input[type="radio"] {
    display: none;
}

.sth-bmi-unit-toggle input[type="radio"]:checked + label {
    background: #007bff;
    color: white;
    border-color: #0056b3;
    transform: scale(1.05);
}

.sth-bmi-input-field {
    margin: 15px 0;
}

.sth-bmi-input-field input {
    width: 100%;
    padding: 15px;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    font-size: 16px;
    margin: 5px 0;
    transition: border-color 0.3s ease;
}

.sth-bmi-input-field input:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.sth-bmi-feet-inches {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.sth-bmi-hint {
    font-size: 14px;
    color: #6c757d;
    margin-top: 8px;
    font-style: italic;
    text-align: center;
}

.sth-bmi-calculate-btn {
    width: 100%;
    padding: 18px 30px;
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sth-bmi-calculate-btn:hover {
    background: linear-gradient(135deg, #218838, #17a2b8);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.sth-bmi-result {
    margin-top: 30px;
    padding: 30px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 15px;
    border-left: 6px solid #28a745;
}

.sth-bmi-result-header h3 {
    margin: 0 0 25px 0;
    color: #333;
    text-align: center;
    font-size: 24px;
}

.sth-bmi-value-section {
    text-align: center;
    margin-bottom: 25px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.sth-bmi-value {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin: 10px 0;
}

.sth-bmi-value span {
    color: #007bff;
    font-size: 36px;
}

.sth-bmi-category {
    font-size: 20px;
    margin: 15px 0;
    padding: 12px 25px;
    border-radius: 25px;
    display: inline-block;
    font-weight: bold;
    color: white;
}

.sth-bmi-message {
    margin: 25px 0;
    padding: 20px;
    background: white;
    border-radius: 10px;
    line-height: 1.6;
    font-size: 16px;
    color: #555;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.sth-bmi-scale {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin: 25px 0;
}

.sth-bmi-scale-item {
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.sth-bmi-scale-item:hover {
    transform: translateY(-5px);
}

.sth-bmi-scale-item strong {
    display: block;
    font-size: 16px;
    margin-bottom: 8px;
    color: #333;
}

.sth-bmi-scale-item div {
    font-size: 14px;
    color: #666;
    font-weight: 600;
}

.sth-underweight { 
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-left: 4px solid #2196f3;
}

.sth-normal { 
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    border-left: 4px solid #4caf50;
}

.sth-overweight { 
    background: linear-gradient(135deg, #fff3e0, #ffcc02);
    border-left: 4px solid #ff9800;
}

.sth-obese { 
    background: linear-gradient(135deg, #ffebee, #ef9a9a);
    border-left: 4px solid #f44336;
}

.sth-bmi-additional-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 25px;
}

.sth-bmi-info-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border-top: 4px solid #007bff;
}

.sth-bmi-info-item h4 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 18px;
}

.sth-bmi-info-item p {
    margin: 0;
    font-size: 16px;
    font-weight: bold;
    color: #007bff;
}

/* BMI Category Colors */
.sth-category-underweight {
    background: linear-gradient(135deg, #2196f3, #1976d2) !important;
}

.sth-category-normal {
    background: linear-gradient(135deg, #4caf50, #388e3c) !important;
}

.sth-category-overweight {
    background: linear-gradient(135deg, #ff9800, #f57c00) !important;
}

.sth-category-obese {
    background: linear-gradient(135deg, #f44336, #d32f2f) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sth-bmi-calculator {
        padding: 20px;
        margin: 10px;
    }
    
    .sth-bmi-input-section {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .sth-bmi-input-group {
        padding: 20px;
    }
    
    .sth-bmi-value {
        font-size: 28px;
    }
    
    .sth-bmi-value span {
        font-size: 32px;
    }
    
    .sth-bmi-scale {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .sth-bmi-additional-info {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .sth-bmi-unit-toggle {
        flex-direction: column;
        gap: 8px;
    }
    
    .sth-bmi-unit-toggle label {
        padding: 12px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .sth-bmi-scale {
        grid-template-columns: 1fr;
    }
    
    .sth-bmi-scale-item {
        padding: 15px;
    }
}