script.js

const passwordInput = document.getElementById("password");
const feedback = document.getElementById("feedback");
const strengthBar = document.getElementById("strength-bar");
const voiceToggle = document.getElementById("voiceToggle");

let speakTimeout;

passwordInput.addEventListener("input", () => {
  const pwd = passwordInput.value;
  const strength = analyzePassword(pwd);
  updateUI(strength);
});

function analyzePassword(pwd) {
  let poolSize = 0;

  if (/[a-z]/.test(pwd)) poolSize += 26;
  if (/[A-Z]/.test(pwd)) poolSize += 26;
  if (/[0-9]/.test(pwd)) poolSize += 10;
  if (/[^A-Za-z0-9]/.test(pwd)) poolSize += 32;

  const entropy = pwd.length * Math.log2(poolSize || 1);

  if (entropy < 28) return { level: "Weak", color: "red", width: "25%" };
  if (entropy < 36) return { level: "Medium", color: "orange", width: "50%" };
  if (entropy < 60) return { level: "Strong", color: "green", width: "75%" };
  return { level: "Very Strong", color: "blue", width: "100%" };
}

function updateUI(strength) {
  const message = `Strength: ${strength.level}`;
  feedback.textContent = message;
  strengthBar.style.width = strength.width;
  strengthBar.style.backgroundColor = strength.color;

  clearTimeout(speakTimeout);
  if (voiceToggle.checked) {
    speakTimeout = setTimeout(() => speak(message), 300);
  }
}

function speak(text) {
  const utterance = new SpeechSynthesisUtterance(text);
  utterance.lang = "en-US";
  utterance.rate = 1;
  speechSynthesis.cancel();
  speechSynthesis.speak(utterance);
}