body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", sans-serif;
  color: white;
  background-color: black;
  position: relative;
  overflow: hidden;
}

.background-overlay {
  background-image: url("assets/bg-vibration.jpg");
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  filter: brightness(0.5);
  animation: zoomPan 40s ease-in-out infinite alternate;
}

@keyframes zoomPan {
  0% {
    transform: scale(1) translate(0, 0);
  }
  50% {
    transform: scale(1.1) translate(-1%, -1%);
  }
  100% {
    transform: scale(1) translate(0, 0);
  }
}

.centered {
  text-align: center;
  margin-top: 5vh;
}

.logo {
  width: 150px;
  margin-bottom: 20px;
  animation: pulse 4s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.05); opacity: 0.8; }
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.2rem;
}

p {
  font-size: 1rem;
  opacity: 0.7;
}

.button-container {
  margin-top: 10vh;
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.nav-button {
  text-decoration: none;
  color: white;
  background: rgba(0,0,0,0.4);
  border: 1px solid white;
  padding: 15px 25px;
  border-radius: 5px;
  transition: all 0.3s ease;
}

.nav-button:hover {
  background-color: white;
  color: black;
}