feat(campaigns): add one-shot glitch hover effects for official campaign cards

src/app/(frontend)/styles.css

@@ -841,3 +841,292 @@
 .wiki-markdown .hljs-strong {
   font-weight: 600;
 }
+
+/* Glitch hover effect for official campaign card titles: fires once (~1s) on hover, then reverts. */
+.glitch-hover {
+  position: relative;
+}
+
+.glitch-ghost {
+  position: absolute;
+  inset: 0;
+  text-wrap: balance;
+  opacity: 0;
+  pointer-events: none;
+}
+
+.glitch-shard-a {
+  color: #22d3ee;
+}
+
+.glitch-shard-b {
+  color: #f43f5e;
+}
+
+.glitch-shard-c {
+  color: #ffffff;
+}
+
+.group:hover .glitch-hover {
+  animation: glitch-jitter 1s ease-out 1;
+}
+
+.group:hover .glitch-shard-a {
+  animation: glitch-shard-a 1s ease-out 1;
+}
+
+.group:hover .glitch-shard-b {
+  animation: glitch-shard-b 1s ease-out 1;
+}
+
+.group:hover .glitch-shard-c {
+  animation: glitch-shard-c 1s ease-out 1;
+}
+
+@keyframes glitch-jitter {
+  0% {
+    transform: translate(3px, -2px) skewX(2deg);
+    text-shadow:
+      -4px 0 rgba(34, 211, 238, 0.7),
+      4px 0 rgba(244, 63, 94, 0.7);
+    animation-timing-function: steps(1, end);
+  }
+  5% {
+    transform: translate(-3px, 2px) skewX(-2deg);
+    text-shadow:
+      3px 0 rgba(34, 211, 238, 0.7),
+      -3px 0 rgba(244, 63, 94, 0.7);
+    animation-timing-function: steps(1, end);
+  }
+  10% {
+    transform: translate(2px, -1px) skewX(1deg);
+    text-shadow:
+      -2px 0 rgba(34, 211, 238, 0.6),
+      2px 0 rgba(244, 63, 94, 0.6);
+    animation-timing-function: steps(1, end);
+  }
+  15% {
+    transform: translate(-1px, 1px);
+    text-shadow:
+      1px 0 rgba(34, 211, 238, 0.5),
+      -1px 0 rgba(244, 63, 94, 0.5);
+    animation-timing-function: ease-out;
+  }
+  25% {
+    transform: translate(0, 0) skewX(0deg);
+    text-shadow: none;
+  }
+  100% {
+    transform: translate(0, 0) skewX(0deg);
+    text-shadow: none;
+  }
+}
+
+@keyframes glitch-shard-a {
+  0% {
+    opacity: 0.9;
+    clip-path: polygon(0 0, 62% 0, 54% 34%, 0 34%);
+    transform: translate(-8px, -4px);
+    animation-timing-function: steps(1, end);
+  }
+  8% {
+    clip-path: polygon(6% 4%, 68% 0, 58% 38%, 0 30%);
+    transform: translate(8px, 4px);
+    animation-timing-function: steps(1, end);
+  }
+  16% {
+    opacity: 0.35;
+    clip-path: polygon(0 0, 50% 6%, 44% 30%, 0 38%);
+    transform: translate(-3px, -2px);
+    animation-timing-function: ease-out;
+  }
+  35% {
+    opacity: 0;
+    clip-path: polygon(0 0, 62% 0, 54% 34%, 0 34%);
+    transform: translate(-5px, -3px);
+  }
+  100% {
+    opacity: 0;
+    clip-path: polygon(0 0, 62% 0, 54% 34%, 0 34%);
+    transform: translate(-5px, -3px);
+  }
+}
+
+@keyframes glitch-shard-b {
+  0% {
+    opacity: 0.9;
+    clip-path: polygon(38% 66%, 100% 58%, 100% 100%, 30% 100%);
+    transform: translate(8px, 4px);
+    animation-timing-function: steps(1, end);
+  }
+  8% {
+    clip-path: polygon(32% 62%, 100% 66%, 100% 100%, 24% 96%);
+    transform: translate(-8px, -4px);
+    animation-timing-function: steps(1, end);
+  }
+  16% {
+    opacity: 0.35;
+    clip-path: polygon(50% 70%, 100% 62%, 100% 100%, 44% 100%);
+    transform: translate(3px, 2px);
+    animation-timing-function: ease-out;
+  }
+  35% {
+    opacity: 0;
+    clip-path: polygon(38% 66%, 100% 58%, 100% 100%, 30% 100%);
+    transform: translate(5px, 3px);
+  }
+  100% {
+    opacity: 0;
+    clip-path: polygon(38% 66%, 100% 58%, 100% 100%, 30% 100%);
+    transform: translate(5px, 3px);
+  }
+}
+
+@keyframes glitch-shard-c {
+  0% {
+    opacity: 0.95;
+    clip-path: polygon(8% 42%, 96% 38%, 88% 62%, 0 66%);
+    transform: translate(6px, -4px);
+    animation-timing-function: steps(1, end);
+  }
+  6% {
+    transform: translate(-6px, 4px);
+    animation-timing-function: steps(1, end);
+  }
+  12% {
+    clip-path: polygon(0 46%, 88% 40%, 96% 58%, 4% 62%);
+    transform: translate(4px, 2px);
+    animation-timing-function: steps(1, end);
+  }
+  20% {
+    transform: translate(-2px, -1px);
+    animation-timing-function: ease-out;
+  }
+  35% {
+    opacity: 0;
+    clip-path: polygon(8% 42%, 96% 38%, 88% 62%, 0 66%);
+    transform: translate(1px, 2px);
+  }
+  100% {
+    opacity: 0;
+    clip-path: polygon(8% 42%, 96% 38%, 88% 62%, 0 66%);
+    transform: translate(1px, 2px);
+  }
+}
+
+.group:hover .glitch-soft {
+  animation: glitch-soft 1s ease-out 1;
+}
+
+.group:hover .glitch-soft-late {
+  animation-delay: 0.1s;
+}
+
+@keyframes glitch-soft {
+  0% {
+    transform: translate(1px, -1px);
+    text-shadow:
+      1px 0 rgba(34, 211, 238, 0.45),
+      -1px 0 rgba(244, 63, 94, 0.45);
+    animation-timing-function: steps(1, end);
+  }
+  8% {
+    transform: translate(-1px, 1px);
+    text-shadow:
+      -1px 0 rgba(34, 211, 238, 0.45),
+      1px 0 rgba(244, 63, 94, 0.45);
+    animation-timing-function: steps(1, end);
+  }
+  16% {
+    transform: translate(1px, 1px);
+    animation-timing-function: ease-out;
+  }
+  30% {
+    transform: translate(0, 0);
+    text-shadow: none;
+  }
+  100% {
+    transform: translate(0, 0);
+    text-shadow: none;
+  }
+}
+
+.glitch-ghost-img {
+  opacity: 0;
+}
+
+.group:hover .glitch-ghost-img-a {
+  animation: glitch-img-band-a 2s ease-out 1;
+}
+
+.group:hover .glitch-ghost-img-b {
+  animation: glitch-img-band-b 2s ease-out 1;
+}
+
+@keyframes glitch-img-band-a {
+  0% {
+    opacity: 0.45;
+    clip-path: inset(0 0 55% 0);
+    transform: translate(-4px, 0);
+    animation-timing-function: steps(1, end);
+  }
+  6% {
+    clip-path: inset(5% 0 60% 0);
+    transform: translate(4px, 2px);
+    animation-timing-function: steps(1, end);
+  }
+  12% {
+    opacity: 0.35;
+    clip-path: inset(10% 0 62% 0);
+    transform: translate(-2px, 0);
+  }
+  100% {
+    opacity: 0;
+    clip-path: inset(0 0 55% 0);
+    transform: translate(0, 0);
+  }
+}
+
+@keyframes glitch-img-band-b {
+  0% {
+    opacity: 0.45;
+    clip-path: inset(45% 0 0 0);
+    transform: translate(4px, 0);
+    animation-timing-function: steps(1, end);
+  }
+  6% {
+    clip-path: inset(40% 0 5% 0);
+    transform: translate(-4px, -2px);
+    animation-timing-function: steps(1, end);
+  }
+  12% {
+    opacity: 0.35;
+    clip-path: inset(38% 0 10% 0);
+    transform: translate(2px, 0);
+  }
+  100% {
+    opacity: 0;
+    clip-path: inset(45% 0 0 0);
+    transform: translate(0, 0);
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .group:hover .glitch-hover {
+    animation: none;
+  }
+
+  .group:hover .glitch-ghost {
+    animation: none;
+    opacity: 0;
+  }
+
+  .group:hover .glitch-soft {
+    animation: none;
+  }
+
+  .group:hover .glitch-ghost-img {
+    animation: none;
+    opacity: 0;
+  }
+}