.txj-bottom-nav {
  position: sticky;
  bottom: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--txj-gap-xs);
  padding: var(--txj-gap-sm) var(--txj-gap-lg) calc(var(--txj-gap-md) + env(safe-area-inset-bottom, 0px));
  background: rgba(250, 245, 242, 0.92);
  border-top: 1px solid var(--txj-color-divider);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.txj-bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 50px;
  border: none;
  border-radius: var(--txj-radius-md);
  color: var(--txj-color-text-tertiary);
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: color var(--txj-duration-fast) var(--txj-ease-soft),
              background var(--txj-duration-fast) var(--txj-ease-soft);
}

.txj-bottom-nav__item:hover {
  color: var(--txj-color-text-secondary);
  background: rgba(212, 131, 155, 0.06);
}

.txj-bottom-nav__item--active {
  color: var(--txj-color-primary-dark);
  background: var(--txj-color-primary-lighter);
}

.txj-bottom-nav__item--active::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 5px;
  height: 5px;
  border-radius: var(--txj-radius-full);
  background: var(--txj-color-primary);
}

.txj-bottom-nav__icon {
  font-size: 20px;
  line-height: 1;
  transition: transform var(--txj-duration-fast) var(--txj-ease-soft);
}

.txj-bottom-nav__item--active .txj-bottom-nav__icon {
  transform: scale(1.1);
}

.txj-bottom-nav__label {
  font-size: var(--txj-font-xs);
  letter-spacing: 0.03em;
  font-weight: 500;
}

.txj-bottom-nav__item--active .txj-bottom-nav__label {
  font-weight: 600;
}

@media (max-width: 480px) {
  .txj-bottom-nav {
    padding: var(--txj-gap-xs) var(--txj-gap-md) calc(var(--txj-gap-sm) + env(safe-area-inset-bottom, 0px));
  }

  .txj-bottom-nav__item {
    min-height: 46px;
  }
}