html, body {
  height: 100%;
  margin: 0;
  font-family: Arial, sans-serif;
}

/* Banner Styling */
.banner {
  position: fixed;
  top: 20px;
  left: 0;
  width: 100%;
  text-align: center;
  z-index: 2;
  pointer-events: none; /* allows clicks to pass through */
}

.banner h1 {
  font-family: 'Bowlby One SC', sans-serif;
  font-size: clamp(2rem, 5vw, 4rem); /* was clamp(2.5rem, 7vw, 6rem) */
  color: #ffeb3b;
  text-shadow:
    0 0 5px #ff5722,
    0 0 10px #ff9800,
    0 0 20px #f44336,
    2px 2px 6px black;
  animation: glowCycle 5s infinite ease-in-out;
  margin: 0;
}

/* Multi-color glimmer animation */
@keyframes glimmer {
  0% {
    text-shadow: 0 0 5px #00ffff, 0 0 10px #ff00ff, 2px 2px 6px black;
    color: #ffffff;
  }
  25% {
    text-shadow: 0 0 5px #ff00ff, 0 0 10px #ffff00, 2px 2px 6px black;
    color: #ffeedd;
  }
  50% {
    text-shadow: 0 0 5px #00ff00, 0 0 10px #00ffff, 2px 2px 6px black;
    color: #ddffee;
  }
  75% {
    text-shadow: 0 0 5px #ffff00, 0 0 10px #ff00ff, 2px 2px 6px black;
    color: #ffeeff;
  }
  100% {
    text-shadow: 0 0 5px #00ffff, 0 0 10px #ff00ff, 2px 2px 6px black;
    color: #ffffff;
  }
}

@keyframes glowCycle {
  0% {
    text-shadow: 0 0 5px #ff5722, 0 0 10px #ff9800, 0 0 20px #f44336, 2px 2px 6px black;
    color: #ffeb3b;
  }
  25% {
    text-shadow: 0 0 5px #00bcd4, 0 0 10px #03a9f4, 0 0 20px #2196f3, 2px 2px 6px black;
    color: #b3e5fc;
  }
  50% {
    text-shadow: 0 0 5px #8bc34a, 0 0 10px #cddc39, 0 0 20px #ffeb3b, 2px 2px 6px black;
    color: #f0f4c3;
  }
  75% {
    text-shadow: 0 0 5px #e91e63, 0 0 10px #f06292, 0 0 20px #f8bbd0, 2px 2px 6px black;
    color: #fce4ec;
  }
  100% {
    text-shadow: 0 0 5px #ff5722, 0 0 10px #ff9800, 0 0 20px #f44336, 2px 2px 6px black;
    color: #ffeb3b;
  }
}

/* Slideshow */
.slideshow {
  position: fixed;
  inset: 0;
  background: #000;
  overflow: hidden;
  z-index: -1;
}

.slideshow img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 2s ease-in-out;
  will-change: opacity;
  z-index: 0;
  pointer-events: none;
}

.slideshow img.active {
  opacity: 1;
  z-index: 1;
}

/* Audio Button */
#audioBtn {
  position: absolute;
  bottom: 30px;
  right: 30px;
  padding: 12px 20px;
  font-size: 1rem;
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  z-index: 3;
  transition: background 0.3s ease;
}

#audioBtn:hover {
  background: rgba(255, 255, 255, 0.2);
}