Dark Mountain CSS Mod

.tab.active {
  background: linear-gradient(180deg, rgba(191, 215, 212, 1) 15%, rgba(0, 0, 0, 0) 45%);
  box-shadow: 0 2px 2.5px 1.5px rgba(0, 0, 0, 0.45);
}

.is-substack .tab.active {
  box-shadow: none;
}

.is-substack .tab:not(.active) {
  background-color: rgba(25, 35, 35, 0.5)
}

.is-substack .stack-counter {
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.35);
}

.tab-strip {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.25) 0%, rgba(0, 0, 0, 0) 35%);
}