* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: #000;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

header {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 10;
  padding: 1.25rem 1.5rem;
}

.logo {
  color: #fff;
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.7);
}

.video-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
}

.video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app-store-badge {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 10;
  transition: opacity 0.2s, transform 0.2s;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.5));
}

.app-store-badge:hover {
  opacity: 0.85;
  transform: scale(1.05);
}