.navigation {
  display: flex;
  align-items: center;
  gap: var(--brutal-space-2);
}

.navigation.vertical {
  flex-direction: column;
  align-items: stretch;
}

.navigation.sm {
  gap: var(--brutal-space-1);
}

.navigation.lg {
  gap: var(--brutal-space-3);
}

.list {
  display: flex;
  align-items: center;
  gap: inherit;
  margin: 0;
  padding: 0;
  list-style: none;
}

.navigation.vertical .list {
  flex-direction: column;
  align-items: stretch;
  width: 100%;
}

.item {
  margin: 0;
}

.item.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.link {
  display: flex;
  align-items: center;
  gap: var(--brutal-space-2);
  padding: var(--brutal-space-2) var(--brutal-space-3);
  font-family: var(--brutal-font-sans);
  font-size: var(--brutal-text-sm);
  font-weight: var(--brutal-font-medium);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brutal-gray-700);
  background-color: transparent;
  border: 2px solid transparent;
  transition: var(--brutal-transition-fast);
  cursor: pointer;
}

.link:hover {
  color: var(--brutal-black);
  background-color: var(--brutal-gray-100);
  border-color: var(--brutal-gray-300);
}

.link:focus {
  outline: none;
  color: var(--brutal-black);
  background-color: var(--brutal-gray-100);
  border-color: var(--brutal-black);
}

.link.active {
  color: var(--brutal-white);
  background-color: var(--brutal-black);
  border-color: var(--brutal-black);
  font-weight: var(--brutal-font-bold);
}

.link.active:hover {
  background-color: var(--brutal-gray-900);
}

.link.disabled {
  color: var(--brutal-gray-400);
  background-color: transparent;
  border-color: transparent;
  cursor: not-allowed;
}

.link.disabled:hover {
  color: var(--brutal-gray-400);
  background-color: transparent;
  border-color: transparent;
}

.icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.text {
  flex: 1;
}

.separator {
  width: 100%;
  height: 2px;
  margin: var(--brutal-space-2) 0;
  background-color: var(--brutal-gray-300);
  border: none;
}

.navigation:not(.vertical) .separator {
  width: 2px;
  height: 24px;
  margin: 0 var(--brutal-space-2);
}

/* Size variants */
.navigation.sm .link {
  padding: var(--brutal-space-1) var(--brutal-space-2);
  font-size: var(--brutal-text-xs);
}

.navigation.sm .icon {
  width: 14px;
  height: 14px;
}

.navigation.lg .link {
  padding: var(--brutal-space-3) var(--brutal-space-4);
  font-size: var(--brutal-text-base);
}

.navigation.lg .icon {
  width: 20px;
  height: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .navigation:not(.vertical) {
    flex-wrap: wrap;
  }
  
  .link {
    padding: var(--brutal-space-2);
    font-size: var(--brutal-text-xs);
  }
  
  .icon {
    width: 14px;
    height: 14px;
  }
}