.main-header {
  background-color: var(--color-primary-700);
  width: 100%;
  position: sticky;
  top: 0;
  z-index: var(--z-index-dropdown);
  height: var(--navbar-height-desktop);
  padding: var(--space-2xs);
}

.header-container {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-weight: 700;
  margin: 0;
  font-size: var(--text-xl);
  text-decoration: none;
  color: inherit
}

.site-title a {
  color: inherit;
  text-decoration: none;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.nav-links {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--text-base);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-md);
  transition: background-color var(--transition-duration-normal) var(--transition-timing),
              transform var(--transition-duration-normal) var(--transition-timing),
              color var(--transition-duration-normal) var(--transition-timing);
  display: flex;
  align-items: center;
  font-size: var(--text-base);
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.nav-link.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--on-primary, #fff);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transform: none; 
}

.hidden-seo-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hamburger-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2xs);
  z-index: calc(var(--z-index-fixed) + 1);
}

.hamburger-icon {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text-base);
  position: relative;
  transition: all var(--transition-duration-normal) var(--transition-timing);
}

.hamburger-icon::before,
.hamburger-icon::after {
  content: "";
  position: absolute;
  width: 25px;
  height: 2px;
  background: var(--text-base);
  transition: all var(--transition-duration-normal) var(--transition-timing);
}

.hamburger-icon::before {
  top: -8px;
}

.hamburger-icon::after {
  top: 8px;
}

.hamburger-btn.active .hamburger-icon {
  background: transparent;
}

.hamburger-btn.active .hamburger-icon::before {
  transform: rotate(45deg);
  top: 0;
}

.hamburger-btn.active .hamburger-icon::after {
  transform: rotate(-45deg);
  top: 0;
}

@media (max-width: 768px) {
  .main-header {
    height: var(--navbar-height-mobile, 60px);
    padding: var(--space-xs);
  }
  
  .header-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 0 var(--space-sm);
  }

  .logo-container {
    display: flex;
    align-items: center;
  }
  
  .site-title {
    font-size: var(--text-sm);
    padding-bottom: 0;
    text-align: left;
    white-space: nowrap;
    text-decoration: none;
  }

  .site-title a{
    text-decoration: none;
  }
  
  .main-nav {
    position: relative;
  }
  
  .nav-links {
    display: none;
    position: fixed;
    top: var(--navbar-height-mobile, 60px);
    left: 0;
    right: 0;
    background: var(--color-primary-700);
    flex-direction: column;
    width: 100%;
    padding: var(--space-xs);
    border-radius: 0;
    box-shadow: var(--shadow-xl);
    z-index: var(--z-index-dropdown);
  }
  
  .nav-links.show {
    display: flex;
    animation: slideDown var(--transition-duration-slow) ease-out;
  }
  
  .nav-link {
    padding: var(--space-sm);
    margin: var(--space-xs) 0;
    justify-content: center;
  }

  .hamburger-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    width: 24px;
    height: 30px;
    border-radius: var(--border-radius-md);
  }


  .hamburger-icon {
    display: block;
    width: 14px;
    height: 2px;
    background-color: white;
    position: relative;
    transition: all var(--transition-duration-normal) var(--transition-timing);
  }

  .hamburger-icon::before,
  .hamburger-icon::after {
    content: "";
    position: absolute;
    width: 14px;
    height: 2px;
    background-color: white;
    transition: all var(--transition-duration-normal) var(--transition-timing);
  }

  .hamburger-icon::before {
    top: -8px;
  }

  .hamburger-icon::after {
    top: 8px;
  }

  .hamburger-btn.active .hamburger-icon {
    background: transparent;
  }

  .hamburger-btn.active .hamburger-icon::before {
    transform: rotate(45deg);
    top: 0;
  }

  .hamburger-btn.active .hamburger-icon::after {
    transform: rotate(-45deg);
    top: 0;
  }

}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}