document.addEventListener('DOMContentLoaded', function () {
    calculateRwcsu();
    calculateRwcts();
    calculateRwcrt();
    calculateRwcc();
    });

    function showTab(tabId) {
        document.querySelectorAll('.tab-content').forEach(tab => {
            tab.classList.remove('active');
        });
      
        const activeTab = document.getElementById(tabId);
        activeTab.classList.add('active');
    
        document.querySelectorAll('.tab').forEach(tab => {
            tab.classList.remove('active'); 
        });
        const activeTabElement = document.querySelector(`.tab[onclick*="${tabId}"]`);
        if (activeTabElement) {
            activeTabElement.classList.add('active'); 
        }
    
        
    }

function calculateRwcsu() {
    const curveRadius = parseFloat(document.getElementById('curveRadiussu').value);
    const trackWidth = parseFloat(document.getElementById('trackWidthsu').value);
    const wheelBase1 = parseFloat(document.getElementById('wheelBase1su').value);
    const roadWidthTangent = parseFloat(document.getElementById('roadWidthTangentsu').value);
    const frontOverhang = parseFloat(document.getElementById('frontOverhangsu').value);
    const designSpeed = parseFloat(document.getElementById('designSpeedsu').value);

    if (isNaN(curveRadius) || isNaN(trackWidth) || isNaN(wheelBase1) ||
        isNaN(roadWidthTangent) || isNaN(frontOverhang) || isNaN(designSpeed)) {
        console.error("Input a correct value.");
        return;
    }

    const U = trackWidth + curveRadius - Math.sqrt(curveRadius ** 2 - wheelBase1 ** 2);

    let C;
    switch (roadWidthTangent) {
        case 6.0:
            C = 0.46;
            break;
        case 6.6:
            C = 0.61;
            break;
        case 7.0:
            C = 0.76;
            break;
        case 7.4:
            C = 0.91;
            break;
        default:
            console.error("Not a correct value of C");
            return;
    }

    const Fa = Math.sqrt(curveRadius ** 2 + frontOverhang * (2 * wheelBase1 + frontOverhang)) - curveRadius;

    const Z = (0.1046 * designSpeed) / Math.sqrt(curveRadius);

    const Wc = 2 * (U + C) + Fa + Z;

    document.getElementById('roadWidthCurvesu').textContent = Wc.toFixed(1);
    const roadWidening = Wc - roadWidthTangent;
    document.getElementById('roadWideningsu').textContent = roadWidening.toFixed(1); 
}

function calculateRwcts() {
    const curveRadius = parseFloat(document.getElementById('curveRadiusts').value);
    const trackWidth = parseFloat(document.getElementById('trackWidthts').value);
    const wheelBase1 = parseFloat(document.getElementById('wheelBase1ts').value);
    const wheelBase2 = parseFloat(document.getElementById('wheelBase2ts').value);
    const roadWidthTangent = parseFloat(document.getElementById('roadWidthTangentts').value);
    const frontOverhang = parseFloat(document.getElementById('frontOverhangts').value);
    const designSpeed = parseFloat(document.getElementById('designSpeedts').value);

    if (isNaN(curveRadius) || isNaN(trackWidth) || isNaN(wheelBase1) ||
        isNaN(roadWidthTangent) || isNaN(frontOverhang) || isNaN(designSpeed)) {
        console.error("Input a correct value.");
        return;
    }

    const U = trackWidth + curveRadius - Math.sqrt(curveRadius ** 2 - (wheelBase1/2 + wheelBase2) ** 2);

    let C;
    switch (roadWidthTangent) {
        case 6.0:
            C = 0.46;
            break;
        case 6.6:
            C = 0.61;
            break;
        case 7.0:
            C = 0.76;
            break;
        case 7.4:
            C = 0.91;
            break;
        default:
            console.error("Not a correct value of C");
            return;
    }

    const Fa = Math.sqrt(curveRadius ** 2 + frontOverhang * (2 * (wheelBase1/2 + wheelBase2) + frontOverhang)) - curveRadius;

    const Z = (0.1046 * designSpeed) / Math.sqrt(curveRadius);

    const Wc = 2 * (U + C) + Fa + Z;

    document.getElementById('roadWidthCurvets').textContent = Wc.toFixed(1); 
    const roadWidening = Wc - roadWidthTangent;
    document.getElementById('roadWideningts').textContent = roadWidening.toFixed(1); 
}

function calculateRwcrt() {
    const curveRadius = parseFloat(document.getElementById('curveRadiusrt').value);
    const trackWidth = parseFloat(document.getElementById('trackWidthrt').value);
    const wheelBase1 = parseFloat(document.getElementById('wheelBase1rt').value);
    const wheelBase2 = parseFloat(document.getElementById('wheelBase2rt').value);
    const wheelBase3 = parseFloat(document.getElementById('wheelBase3rt').value);
    const roadWidthTangent = parseFloat(document.getElementById('roadWidthTangentrt').value);
    const frontOverhang = parseFloat(document.getElementById('frontOverhangrt').value);
    const designSpeed = parseFloat(document.getElementById('designSpeedrt').value);

    if (isNaN(curveRadius) || isNaN(trackWidth) || isNaN(wheelBase1) ||
        isNaN(roadWidthTangent) || isNaN(frontOverhang) || isNaN(designSpeed)) {
        console.error("Input a correct value.");
        return;
    }

    const U = trackWidth + curveRadius - Math.sqrt(curveRadius ** 2 - (wheelBase1/2 + wheelBase2 + wheelBase3) ** 2);

    let C;
    switch (roadWidthTangent) {
        case 6.0:
            C = 0.46;
            break;
        case 6.6:
            C = 0.61;
            break;
        case 7.0:
            C = 0.76;
            break;
        case 7.4:
            C = 0.91;
            break;
        default:
            console.error("Not a correct value of C");
            return;
    }

    const Fa = Math.sqrt(curveRadius ** 2 + frontOverhang * (2 * (wheelBase1/2 + wheelBase2 + wheelBase3) + frontOverhang)) - curveRadius;

    const Z = (0.1046 * designSpeed) / Math.sqrt(curveRadius);

    const Wc = 2 * (U + C) + Fa + Z;

    document.getElementById('roadWidthCurvert').textContent = Wc.toFixed(1); 
    const roadWidening = Wc - roadWidthTangent;
    document.getElementById('roadWideningrt').textContent = roadWidening.toFixed(1); 
}

function calculateRwcc() {
    const curveRadius = parseFloat(document.getElementById('curveRadiusc').value);
    const trackWidth = parseFloat(document.getElementById('trackWidthc').value);
    const wheelBase1 = parseFloat(document.getElementById('wheelBase1c').value);
    const wheelBase2 = parseFloat(document.getElementById('wheelBase2c').value);
    const wheelBase3 = parseFloat(document.getElementById('wheelBase3c').value);
    const roadWidthTangent = parseFloat(document.getElementById('roadWidthTangentc').value);
    const frontOverhang = parseFloat(document.getElementById('frontOverhangc').value);
    const designSpeed = parseFloat(document.getElementById('designSpeedc').value);

    if (isNaN(curveRadius) || isNaN(trackWidth) || isNaN(wheelBase1) ||
        isNaN(roadWidthTangent) || isNaN(frontOverhang) || isNaN(designSpeed)) {
        console.error("Input a correct value.");
        return;
    }

    const U = trackWidth + curveRadius - Math.sqrt(curveRadius ** 2 - (wheelBase1/2 + wheelBase2 + wheelBase3) ** 2);

    let C;
    switch (roadWidthTangent) {
        case 6.0:
            C = 0.46;
            break;
        case 6.6:
            C = 0.61;
            break;
        case 7.0:
            C = 0.76;
            break;
        case 7.4:
            C = 0.91;
            break;
        default:
            console.error("Not a correct value of C");
            return;
    }

    const Fa = Math.sqrt(curveRadius ** 2 + frontOverhang * (2 * (wheelBase1/2 + wheelBase2 + wheelBase3) + frontOverhang)) - curveRadius;

    const Z = (0.1046 * designSpeed) / Math.sqrt(curveRadius);

    const Wc = 2 * (U + C) + Fa + Z;

    document.getElementById('roadWidthCurvec').textContent = Wc.toFixed(1); // Resultados en roadWidthCurvesu
    const roadWidening = Wc - roadWidthTangent;
    document.getElementById('roadWideningc').textContent = roadWidening.toFixed(1); // Resultados en roadWideningsu
}