*, *::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";
  background: #111827;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

.holo-container {
  perspective: 1000px;
}

.holo-card {
  position: relative;
  width: 300px;
  height: 420px;
  background: #1e293b;
  border-radius: 20px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  transition: transform 0.1s ease;
  transform-style: preserve-3d;
  cursor: pointer;
}

.holo-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    115deg,
    transparent 20%,
    rgba(255, 0, 128, 0.4) 30%,
    rgba(255, 204, 0, 0.4) 40%,
    rgba(0, 204, 255, 0.4) 50%,
    rgba(0, 255, 128, 0.4) 60%,
    transparent 70%
  );
  background-size: 300% 300%;
  background-position: var(--bg-x, 50%) var(--bg-y, 50%);
  mix-blend-mode: color-dodge;
  opacity: 0.6;
  z-index: 2;
  transition: background-position 0.1s ease;
  pointer-events: none;
}

.holo-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
    rgba(255, 255, 255, 0.3) 0%, 
    transparent 50%
  );
  z-index: 3;
  pointer-events: none;
}

.card-content {
  position: relative;
  z-index: 1;
  padding: 40px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
}

.card-content h2 {
  color: #ffffff;
  margin: 0 0 10px 0;
  font-size: 2rem;
  transform: translateZ(30px);
}

.card-content p {
  color: #cbd5e1;
  margin: 0;
  line-height: 1.5;
  transform: translateZ(20px);
}

const card = document.getElementById("holo-card");

card.addEventListener("mousemove", function(e) {
  const rect = card.getBoundingClientRect();
  const x = e.clientX - rect.left;
  const y = e.clientY - rect.top;
  
  const centerX = rect.width / 2;
  const centerY = rect.height / 2;
  
  const rotateX = ((y - centerY) / centerY) * -15;
  const rotateY = ((x - centerX) / centerX) * 15;
  
  card.style.transform = "rotateX(" + rotateX + "deg) rotateY(" + rotateY + "deg)";
  
  const bgX = (x / rect.width) * 100;
  const bgY = (y / rect.height) * 100;
  
  card.style.setProperty("--bg-x", bgX + "%");
  card.style.setProperty("--bg-y", bgY + "%");
  card.style.setProperty("--mouse-x", x + "px");
  card.style.setProperty("--mouse-y", y + "px");
});

card.addEventListener("mouseleave", function() {
  card.style.transform = "rotateX(0deg) rotateY(0deg)";
  card.style.setProperty("--bg-x", "50%");
  card.style.setProperty("--bg-y", "50%");
  card.style.setProperty("--mouse-x", "50%");
  card.style.setProperty("--mouse-y", "50%");
});