/* ── Bottom Tab Bar ── */
#tab-bar {
  display: flex;
  height: calc(var(--tab-h) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: var(--surface);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 50;
  flex-shrink: 0;
  box-shadow: 0 -4px 20px rgba(10,37,51,.08);
}

.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: var(--text-3);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .3px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  transition: color var(--dur) var(--ease);
  font-family: 'Comme', sans-serif;
}

.tab-item i {
  font-size: 19px;
  transition: transform var(--dur) var(--ease-spring), color var(--dur) var(--ease);
  display: block;
}

/* Active raised circle indicator */
.tab-item::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 36px;
  height: 3px;
  background: var(--teal);
  border-radius: 0 0 4px 4px;
  transition: transform var(--dur) var(--ease-spring);
}

.tab-item.active::before {
  transform: translateX(-50%) scaleX(1);
}

/* Raised circle behind active icon */
.tab-indicator {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%) translateY(0) scale(0);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--teal-subtle);
  transition: transform var(--dur) var(--ease-spring);
  z-index: -1;
}

.tab-item.active .tab-indicator {
  transform: translateX(-50%) translateY(0) scale(1);
}

.tab-item.active {
  color: var(--teal);
}

.tab-item.active i {
  transform: translateY(-2px) scale(1.12);
  color: var(--teal);
}

.tab-item:not(.active):active i {
  transform: scale(.88);
}