.hidden { display: none !important; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-sm { gap: var(--gap-sm); }
.gap-md { gap: var(--gap-md); }
.text-center { text-align: center; }
.is-loading { opacity: 0.6; pointer-events: none; }