body { min-height: 100vh; }
.navbar { background: rgba(255,255,255,.02); }
.card, .list-group-item { border-color: rgba(255,255,255,.12); }
.action-card { transition: transform .15s ease, border-color .15s ease; }
.action-card:hover { transform: translateY(-2px); border-color: rgba(255,255,255,.35); }
.option-btn { white-space: normal; border-color: rgba(255,255,255,.2); }
.option-btn:hover { border-color: rgba(255,255,255,.55); }
.option-btn:disabled { opacity: 1; }
.option-letter { display: inline-block; min-width: 1.4rem; }
.preserve-lines { white-space: pre-line; }
#stem { max-width: 75ch; }