header {
  z-index: 10;
  grid-area: header;
  align-items: center;
  grid-template-columns: auto 1fr auto;
  grid-template-areas: "toggleDarkmode . nav";
  display: grid;
  color: var(--fg);
  background-color: var(--bg2);
  border-radius: 0px;
  padding: 0;
  margin: 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2); /* subtle shadow */
  min-height: 5rem;
  width: 100%;
  position: fixed;
  transition:
    background 0.3s,
    color 0.3s,
    transform 0.3s ease;
}

header.hide {
  transform: translateY(-100%);
}

a {
  text-decoration: none;
  color: var(--accent-fg);
  font-weight: 700;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent-bg);
}

nav {
  grid-area: nav;
  font-family: var(--font-title);
  overflow: hidden;
  display: flex;
  align-items: center;
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  gap: 0;
}

nav a {
  display: flex;
  flex-grow: 1;
  height: inherit;
  align-items: center;
  text-align: center;
  justify-content: center;
  margin: 0 5px;
  color: var(--accent-fg);
  padding: 5px;
}

nav a:hover {
  font-weight: bold;
  background-color: var(--accent-bg);
  color: var(--accent-fg);
  scale: 1.1;
  transition: scale 0.1s ease;
}

.main {
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  text-align: center;
  font-size: 3em;
}

button {
  background-color: var(--accent-bg);
  border: none;
  color: var(--accent-fg);
  padding: 5px;
  text-align: center;
  align-items: center;
  text-decoration: none;
  display: inline-block;
  margin: 2px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: var(--accent-fg);
  color: var(--accent-bg);
}

#toggleDarkMode {
  grid-area: toggleDarkmode;
  width: 40px;
  height: 40px;
  border: none;
  align-items: center;
  text-align: center;
  justify-content: center;
  display: inline-flex;
  border-radius: 50%;
  padding: 0;
  margin: 10px;
}