@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 12px 20px;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}
  
.top-nav {
    display: flex;
    gap: 24px;
}

.top-nav a {
  font-size: clamp(0.9rem, 2.5vw, 1rem);
}
.theme-toggle {
  position: fixed;
  top: 12px;
  right: 12px;
  background-color: var(--btn-bg);
  color: var(--btn-text);
  border: none;
  border-radius: 4px;
  padding: 6px 10px;
  font-family: 'Share Tech Mono', monospace;
  font-size: clamp(0.8rem, 2vw, 0.9rem);
  cursor: pointer;
  transition: background-color 0.2s;
  z-index: 101;
}
.theme-toggle:hover {
  background-color: var(--link-hover);
}
h1 {
  font-size: clamp(2rem, 5vw, 3em);
  margin: 0 0 16px;
  animation: flicker 2s infinite;
}
p {
  font-size: clamp(1rem, 2.5vw, 1.2em);
  margin: 0 0 24px;
  opacity: 0.8;
}
.cursor {
  display: inline-block;
  background-color: var(--link-color);
  width: 8px;
  height: 1em;
  animation: blink 1s step-start infinite;
  vertical-align: bottom;
  margin-left: 3px;
}
.download-button {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--btn-bg);
  color: var(--btn-text);
  border-radius: 4px;
  font-size: clamp(1rem, 3vw, 1.1em);
  text-decoration: none;
  margin-top: 16px;
  transition: background-color 0.2s;
}
.download-button:hover {
  background-color: var(--link-hover);
}