/* custom.css */
.btn-elpidan {
  display: inline-block;
  background: #2f54eb;
  color: #fff;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 50px;
  text-decoration: none;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(47, 84, 235, 0.3);
}
.btn-elpidan:hover {
  background: #1d39c4;
  box-shadow: 0 6px 16px rgba(47, 84, 235, 0.4);
  transform: translateY(-2px);
}
.btn-elpidan {
  display: inline-block;
  background: #007bff;
  color: #fff;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 50px;
  text-decoration: none;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
  animation: moveAround 4s ease-in-out infinite;
}

@keyframes moveAround {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(3px, -3px);
  }
  50% {
    transform: translate(0, -5px);
  }
  75% {
    transform: translate(-3px, -3px);
  }
  100% {
    transform: translate(0, 0);
  }
}

.btn-elpidan:hover {
  background: #0056b3;
  box-shadow: 0 6px 16px rgba(0, 123, 255, 0.4);
}

header {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 1000;
  padding: 25px 50px;
  transition: all 0.3s ease;
}

header a {
  display: inline-block;
  line-height: 0;
}

header img {
  height: 80px;
  width: auto;
  transition:
    transform 0.3s ease,
    filter 0.3s ease;
  filter: brightness(0) invert(1) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

header img:hover {
  transform: scale(1.1);
  filter: brightness(0) invert(1) drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}