style upgrades

src/components/countdown.module.css

@@ -0,0 +1,36 @@
+.time {
+    transition: color 300ms ease-out;
+}
+
+.seconds {
+    display: inline-block;
+}
+
+.tick {
+    animation: digit-tick 200ms ease-out;
+}
+
+.finalTick {
+    animation: final-tick 250ms ease-out;
+}
+
+@keyframes digit-tick {
+    from {
+        opacity: 0.2;
+        transform: translateY(-0.12em);
+    }
+}
+
+@keyframes final-tick {
+    from {
+        opacity: 0.4;
+        transform: scale(1.15);
+    }
+}
+
+@media (prefers-reduced-motion: reduce) {
+    .tick,
+    .finalTick {
+        animation: none;
+    }
+}