body {
  background: linear-gradient(135deg, #1a202c 0%, #0d1117 100%);
  min-height: 100vh;
  overflow-x: hidden;
}
.pulse {
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(213, 0, 0, 0.7);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(213, 0, 0, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(213, 0, 0, 0);
  }
}
.social-icon {
  transition: all 0.3s ease;
}
.social-link:hover .social-icon {
  transform: scale(1.2);
  color: #ffd700;
}
.flag-stripe {
  height: 4px;
  background: linear-gradient(
    to right,
    #d50000 33.3%,
    #000000 33.3%,
    #000000 66.6%,
    #ffd700 66.6%
  );
}
.card-hover {
  transition: all 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3),
    0 10px 10px -5px rgba(0, 0, 0, 0.2);
}
.video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
}
.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 12px;
}