header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: var(--header-bg);
  color: var(--header-text);
  margin: 0;
  padding: 0;
  font-size: calc(16px * var(--font-size-modifier));
  max-height: 75px;
  box-shadow: 0 3px 5px rgba(0, 0, 0, 0.1);
}

.pfp img {
  width: auto;
  height: 50px;
  object-fit: cover;
  border-radius: 7px;
  border: 1px solid var(--hr-color);
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

nav {
  display: flex; 
  align-items: center; 
  padding: 10px 15px;
  justify-content: space-between; 
}

.nav-links {
  display: flex;
  gap: 15px; 
}

a {
  color: var(--header-text);
  text-decoration: none;
}

a:hover {
  color: var(--links-text-hover);
}

.nav-groups {
  display: flex;
  gap: 15px; 
}

.group-links {
  display: none;
  position: absolute;
  z-index: 1000;
  background: var(--box-bg);
  padding: 15px;
  flex-direction: column;
  gap: 10px;
  margin-top: 26px;
  align-items: center;
}


.group h4 {
  cursor: pointer;
  color: var(--header-text);
  margin: 0;
  font-weight: normal
}

.group h4:hover {
  color: var(--links-text-hover);
}

.group-links.open {
  display: flex;
}

.hamburger {
  display: none; 
}