* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: 'Inter', sans-serif;
}

/* Default background */
body {
  background-image: url('/img/longbay.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: background-color 0.3s ease;
}

/* Overlay styling */
.overlay {
  background-color: rgba(0, 0, 0, 0.5);
  height: 100%;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
  padding: 2rem;
}

/* Typography */
.content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.content p {
  font-size: 1.5rem;
  font-weight: 400;
}

/* Toggle Button */
#theme-toggle {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.15);
  color: white;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s ease;
}

#theme-toggle:hover {
  background: rgba(255,255,255,0.3);
}

/* Dark mode override */
body.dark {
  background-color: #121212;
}

body.dark .overlay {
  background-color: rgba(0, 0, 0, 0.75);
}

body.dark h1,
body.dark p {
  color: #e0e0e0;
}

body.dark #theme-toggle {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}