body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background: linear-gradient(180deg, #071025, #091c2d);
  color: #e6ffef;
  text-align: center;
}

header {
  padding: 20px;
}

.subtitle {
  color: #7fffd4;
  font-size: 1.1em;
}

.video-card {
  max-width: 720px;
  margin: 40px auto;
  background: #0c1524;
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
}

video {
  width: 100%;
  border-radius: 12px;
  margin-top: 10px;
}

.desc {
  margin-top: 12px;
  color: #bde8d2;
}

footer {
  margin-top: 40px;
  font-size: 0.85em;
  color: #7fbfa4;
}