header {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--header-bg);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  margin-bottom: 0;
}

.controls-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
  margin-right: 0.8rem;
}

/* Language switcher styles */
.language-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  padding-right: 1rem;
}

.lang-btn {
  background: none;
  border: none;
  font-size: 0.9rem;
  font-weight: bold;
  color: #333;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  transition: color 0.2s ease;
}

.lang-btn:hover {
  color: white;
}

.lang-btn.active {
  color: white;
  text-decoration: underline;
}

.lang-separator {
  color: #333;
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--header-text);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
  transition: transform 0.3s;
}

.nav-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  /* gap: 2rem; */
}

.logo {
  height: 50px;
}

.nav-links {
  display: flex;
  align-items: center;
  transition: all 0.1s ease-in-out;
}

.nav-links a {
  min-width: 110px;
  text-decoration: none;
  color: var(--header-text);
  font-weight: bold;
  transition: color 0.1s;
  font-size: 1.25rem;
}

.nav-links a:hover {
  color: var(--header-hover);
}

/* for large screens */
@media (min-width: 769px) {
  .nav-links {
    position: absolute;
    left: 13%;
    gap: clamp(4rem, 8vw, 9rem);
  }

  .nav-links a {
    padding: 0.5rem 1rem; /* Equal padding around links */
    white-space: nowrap; /* Prevents text wrapping */
  }

  .language-switcher {
    padding-right: 0.7rem;
  }
}

/* for medium screens */
@media (min-width: 769px) and (max-width: 1100px) {
  .nav-links {
    position: absolute;
    left: 13%;
    gap: clamp(0.2rem, 1.5vw, 1rem);
  }
}

/* Hamburger menu */
.hamburger {
  display: none; /* Hidden by default on desktop */
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 28px;
  height: 20px;
  position: relative;
  z-index: 1002; /* Ensure it stays above the menu */
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #333;
  position: absolute;
  left: 0;
  transition: all 0.25s ease-in-out;
}

/* Position each line */
.hamburger-line:nth-child(1) {
  top: 0;
}

.hamburger-line:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.hamburger-line:nth-child(3) {
  bottom: 0;
}

/* Animation for the X state */
.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(9px) rotate(45deg); /* height / 2 - 1 */
}

.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}