/* ================================
   Navigation Styles
   ================================ */
.header {
  background: linear-gradient(135deg, #1a4d20 0%, #2d6b35 50%, #4a9c59 100%);
  box-shadow: 0 4px 20px rgba(26, 77, 32, 0.3);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav-brand:hover {
  color: rgba(255, 255, 255, 0.9);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-menu li {
  margin: 0;
}

.nav-menu a {
  color: #ffffff;
  font-weight: 500;
  font-size: 0.95rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-menu a:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.1);
}

.nav-menu a.active {
  color: #ffffff;
  font-weight: 700;
  background-color: rgba(255, 255, 255, 0.15);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  flex-direction: column;
  gap: 4px;
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* Mobile Menu Styles */
@media (max-width: 1200px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #1a4d20 0%, #2d6b35 50%, #4a9c59 100%);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: 0 4px 20px rgba(26, 77, 32, 0.3);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    gap: 0;
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu li {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }

  .nav-menu li:last-child {
    border-bottom: none;
  }

  .nav-menu a {
    display: block;
    padding: var(--spacing-sm);
    width: 100%;
    color: #ffffff;
  }

  .nav-menu a:hover,
  .nav-menu a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
  }

  /* Animate hamburger to X */
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
}

/* Language toggle in navigation */
.nav-menu .lang-toggle {
  margin-left: var(--spacing-sm);
  padding-left: var(--spacing-sm);
  border-left: 1px solid rgba(255, 255, 255, 0.3);
}

@media (max-width: 1200px) {
  .nav-menu .lang-toggle {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    margin-left: 0;
    padding-left: 0;
    justify-content: center;
  }

  .lang-toggle button {
    color: rgba(255, 255, 255, 0.8);
  }

  .lang-toggle button:hover,
  .lang-toggle button.active {
    color: #ffffff;
  }

  .lang-toggle .separator {
    color: rgba(255, 255, 255, 0.3);
  }
}