@keyframes fade-in    { from { opacity: 0; }                             to { opacity: 1; } }
@keyframes slide-up   { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes slide-left { from { opacity: 0; transform: translateX(16px); } to { opacity: 1; transform: none; } }
@keyframes spin       { to { transform: rotate(360deg); } }
@keyframes pulse-dot  { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }

.anim-fade { animation: fade-in  var(--t-normal) var(--ease-out) both; }
.anim-up   { animation: slide-up var(--t-normal) var(--ease-out) both; }
.anim-spin { animation: spin 1.1s linear infinite; }

.anim-stagger > * { animation: slide-up var(--t-slow) var(--ease-out) both; }
.anim-stagger > *:nth-child(1)  { animation-delay:   0ms; }
.anim-stagger > *:nth-child(2)  { animation-delay:  30ms; }
.anim-stagger > *:nth-child(3)  { animation-delay:  60ms; }
.anim-stagger > *:nth-child(4)  { animation-delay:  90ms; }
.anim-stagger > *:nth-child(5)  { animation-delay: 120ms; }
.anim-stagger > *:nth-child(6)  { animation-delay: 150ms; }
.anim-stagger > *:nth-child(7)  { animation-delay: 180ms; }
.anim-stagger > *:nth-child(8)  { animation-delay: 210ms; }
.anim-stagger > *:nth-child(9)  { animation-delay: 240ms; }
.anim-stagger > *:nth-child(10) { animation-delay: 270ms; }
.anim-stagger > *:nth-child(11) { animation-delay: 300ms; }
.anim-stagger > *:nth-child(12) { animation-delay: 330ms; }
.anim-stagger > *:nth-child(13) { animation-delay: 360ms; }
.anim-stagger > *:nth-child(14) { animation-delay: 390ms; }
.anim-stagger > *:nth-child(15) { animation-delay: 420ms; }
.anim-stagger > *:nth-child(16) { animation-delay: 450ms; }
.anim-stagger > *:nth-child(17) { animation-delay: 480ms; }
.anim-stagger > *:nth-child(18) { animation-delay: 510ms; }
.anim-stagger > *:nth-child(19) { animation-delay: 540ms; }
.anim-stagger > *:nth-child(20) { animation-delay: 570ms; }