*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  margin: 0;
  background: url("https://placehold.co/1920x1080/4c1d95/1e1b4b?text=Abstract+Colors") center/cover no-repeat;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.wizard-container {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  width: 100%;
  max-width: 500px;
  padding: 40px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  color: #ffffff;
}

.stepper-header {
  position: relative;
  margin-bottom: 40px;
}

.progress-track {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  z-index: 1;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: #a855f7;
  border-radius: 2px;
  transition: width 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 0 10px #a855f7;
}

.step-nodes {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
}

.step-node {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #1e1b4b;
  border: 2px solid rgba(255, 255, 255, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: 700;
  color: #94a3b8;
  transition: all 0.4s ease;
}

.step-node.active {
  background: #a855f7;
  border-color: #d8b4fe;
  color: #ffffff;
  box-shadow: 0 0 15px rgba(168, 85, 247, 0.6);
  transform: scale(1.1);
}

.step-content {
  text-align: center;
  margin-bottom: 40px;
  min-height: 100px;
}

.step-content h2 {
  margin: 0 0 12px 0;
  font-size: 1.75rem;
}

.step-content p {
  margin: 0;
  color: #cbd5e1;
  font-size: 1.1rem;
  line-height: 1.5;
}

.wizard-actions {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.wiz-btn {
  padding: 14px 24px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  flex: 1;
}

.back-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
}

.back-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
}

.back-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.next-btn {
  background: #a855f7;
  border: none;
  color: #ffffff;
}

.next-btn:hover {
  background: #9333ea;
}

const btnNext = document.getElementById("btn-next");
const btnBack = document.getElementById("btn-back");
const progressFill = document.getElementById("progress-fill");
const titleEl = document.getElementById("step-title");
const descEl = document.getElementById("step-desc");

const node1 = document.getElementById("node-1");
const node2 = document.getElementById("node-2");
const node3 = document.getElementById("node-3");

let currentStep = 1;

function updateWizard() {
  // Reset all active states safely
  node1.classList.remove("active");
  node2.classList.remove("active");
  node3.classList.remove("active");
  
  if (currentStep === 1) {
    node1.classList.add("active");
    progressFill.style.width = "0%";
    titleEl.innerText = "Account Setup";
    descEl.innerText = "Please enter your basic account details to get started.";
    btnBack.disabled = true;
    btnNext.innerText = "Continue";
  } 
  else if (currentStep === 2) {
    node1.classList.add("active");
    node2.classList.add("active");
    progressFill.style.width = "50%";
    titleEl.innerText = "Preferences";
    descEl.innerText = "Customize your notification and theme settings.";
    btnBack.disabled = false;
    btnNext.innerText = "Continue";
  } 
  else if (currentStep === 3) {
    node1.classList.add("active");
    node2.classList.add("active");
    node3.classList.add("active");
    progressFill.style.width = "100%";
    titleEl.innerText = "Final Review";
    descEl.innerText = "Confirm your details and create your workspace.";
    btnBack.disabled = false;
    btnNext.innerText = "Complete Setup";
  }
}

btnNext.addEventListener("click", function() {
  if (currentStep < 3) {
    currentStep++;
    updateWizard();
  } else {
    alert("Wizard Completed Successfully!");
  }
});

btnBack.addEventListener("click", function() {
  if (currentStep > 1) {
    currentStep--;
    updateWizard();
  }
});