מחשבון הערכת עלות ממ"ד

(function() {
const areaSlider = document.getElementById('areaRangeMamad');
const areaSpan = document.getElementById('areaValueMamad');
const doorSelect = document.getElementById('doorTypeMamad');
const ventSelect = document.getElementById('ventSystemMamad');
const finishSelect = document.getElementById('finishLevelMamad');
const priceSpan = document.getElementById('priceDisplayMamad');

const BASE_PRICE_PER_SQM = 3800;
const DOOR_PRICES = { base: 18500, premium: 26500, blast: 42000 };
const VENT_PRICES = { none: 0, basic: 9500, auto: 18500 };
const FINISH_PRICES = { basic: 2800, standard: 9500, premium: 21000 };

function updatePrice() {
let area = parseFloat(areaSlider.value);
areaSpan.innerText = area + ' מ"ר';
let baseCost = area * BASE_PRICE_PER_SQM;
let doorCost = DOOR_PRICES[doorSelect.value];
let ventCost = VENT_PRICES[ventSelect.value];
let finishCost = FINISH_PRICES[finishSelect.value];
let totalLow = baseCost + doorCost + ventCost + finishCost;
let totalHigh = totalLow * 1.09;
let lowRounded = Math.round(totalLow / 1000) * 1000;
let highRounded = Math.round(totalHigh / 1000) * 1000;
priceSpan.innerHTML = `₪ ${lowRounded.toLocaleString()} – ${highRounded.toLocaleString()}`;
}

areaSlider.addEventListener('input', updatePrice);
doorSelect.addEventListener('change', updatePrice);
ventSelect.addEventListener('change', updatePrice);
finishSelect.addEventListener('change', updatePrice);
updatePrice();

const cta = document.getElementById('ctaButtonMamad');
cta.addEventListener('click', function(e) {
e.preventDefault();
alert("תודה! נחזור אליך תוך 24 שעות עם הצעת מחיר מותאמת אישית. אנו ממליצים לשלוח פרטים נוספים דרך טופס הצור קשר.");
// אפשר להפנות לעמוד יצירת קשר: window.location.href = "/contact";
});
})();