/* Reset and base layout */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: #0a0a23;
  color: #fff;
  font-family: 'Segoe UI', sans-serif;
  text-align: center;
}

h1 {
  font-size: 2.8rem;
  font-weight: 700;
  color: #ffffff;
  text-align: center;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  line-height: 1.2;
}

.header-wrapper {
  text-align: center;
  margin-top: 30px;
  margin-bottom: 40px;
}

video {
  width: 100%;
  height: auto;
  max-width: 800px;
  aspect-ratio: 9 / 16;
  box-shadow: 0 0 70px #0000AA;
  border-radius: 12px;
  opacity: 0;
  animation: fadeIn 1s ease-in-out forwards;
}

/* Mobile: allow near full-width */
@media (max-width: 768px) {
  video {
    max-width: 98vw;
  }
}

/* Fade-in effect */
@keyframes fadeIn {
  to {
    opacity: 1;
  }
}