AI CSS Animations

Codebase Search Results

A grep for rateLimit( across src and tests: a scan line sweeps the query bar, file hits slide in with their matching line numbers and the match count ticks up to 18. The count is an @property integer.

Also known as: grep search animation, code search loading, find in files ui.

HTML

<div class="aia-codebase-search" role="status" aria-label="Searching the codebase for rateLimit">
  <div class="aia-codebase-search-bar">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><circle cx="11" cy="11" r="6.5"/><path d="m20 20-4.2-4.2"/></svg>
    <code><span>Grep</span> <b>rateLimit(</b> <span>src/ tests/</span></code>
    <span class="aia-codebase-search-num" aria-hidden="true"></span>
  </div>
  <ul class="aia-codebase-search-hits" aria-hidden="true">
    <li><span>src/middleware/</span><b>limit.ts</b><i>:14</i><i>:32</i><i>:57</i><u>+5</u></li>
    <li><span>src/routes/</span><b>login.ts</b><i>:9</i><i>:22</i><i>:41</i></li>
    <li><span>src/routes/</span><b>signup.ts</b><i>:18</i><i>:30</i></li>
    <li><span>tests/</span><b>limit.test.ts</b><i>:6</i><i>:11</i><i>:19</i><u>+2</u></li>
  </ul>
  <p class="aia-codebase-search-foot">
    <span class="aia-codebase-search-busy">Searching 1,284 files</span>
    <span class="aia-codebase-search-done">18 matches in 4 files, 31 ms</span>
  </p>
</div>

CSS

@property --aia-codebase-search-t {
  syntax: "<number>";
  inherits: true;
  initial-value: 0;
}
@property --aia-codebase-search-n {
  syntax: "<integer>";
  inherits: false;
  initial-value: 0;
}
.aia-codebase-search {
  --c: var(--aia-color, #7c5cff);
  font-size: var(--aia-size, 16px);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.4;
  position: relative;
  box-sizing: border-box;
  padding: 0.9em 1em;
  border-radius: 0.9em;
  background: color-mix(in srgb, currentColor 3%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, currentColor 11%, transparent), 0 0.1em 0.2em color-mix(in srgb, currentColor 4%, transparent), 0 0.9em 2em -1.1em rgb(0 0 0 / 0.3);
  --d: 8s;
  --t: var(--aia-codebase-search-t);
  --done: clamp(0, (var(--t) - 4.15) * 5, 1);
  width: 23em;
  padding: 0.75em 0.8em 0.6em;
  animation: aia-codebase-search-clock var(--d) cubic-bezier(0.3, 0, 0.2, 1) infinite;
}
.aia-codebase-search-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.5em 0.65em;
  overflow: hidden;
  border-radius: 0.55em;
  background: color-mix(in srgb, currentColor 5%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, currentColor 10%, transparent);
  font-size: 0.8em;
}
.aia-codebase-search-bar svg {
  flex: none;
  width: 1.15em;
  height: 1.15em;
  color: var(--c);
}
.aia-codebase-search-bar code {
  font: 0.95em ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  white-space: nowrap;
}
.aia-codebase-search-bar code span { color: color-mix(in srgb, currentColor 50%, transparent); }
.aia-codebase-search-bar code b {
  padding: 0.05em 0.3em;
  border-radius: 0.3em;
  background: color-mix(in srgb, var(--c) 14%, transparent);
  color: color-mix(in srgb, var(--c) 78%, currentColor);
  font-weight: 600;
}
/* the scan line under the query while it searches */
.aia-codebase-search-bar::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 35%;
  height: 0.14em;
  background: linear-gradient(90deg, transparent, var(--c), transparent);
  opacity: calc(1 - var(--done));
  animation: aia-codebase-search-scan 1.1s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
.aia-codebase-search-num {
  margin-left: auto;
  color: color-mix(in srgb, currentColor 55%, transparent);
  font: 600 0.95em ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  white-space: nowrap;
  --aia-codebase-search-n: calc(8 * clamp(0, (var(--t) - 0.2) * 1.4, 1) + 3 * clamp(0, (var(--t) - 1.2) * 1.4, 1) + 2 * clamp(0, (var(--t) - 2.2) * 1.4, 1) + 5 * clamp(0, (var(--t) - 3.2) * 1.4, 1));
  counter-reset: n var(--aia-codebase-search-n);
  animation: aia-codebase-search-fade var(--d) linear infinite;
}
.aia-codebase-search-num::before { content: counter(n) " matches"; }
.aia-codebase-search-hits {
  height: calc(1.85em * 4);
  margin: 0.4em 0 0;
  padding: 0;
  list-style: none;
  font: 0.76em ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  animation: aia-codebase-search-fade var(--d) linear infinite;
}
.aia-codebase-search-hits li {
  --i: 0;
  --g: clamp(0, (var(--t) - var(--i) - 0.2) * 4, 1);
  display: flex;
  align-items: center;
  gap: 0.35em;
  height: 1.85em;
  padding: 0 0.6em;
  border-bottom: 1px solid color-mix(in srgb, currentColor 7%, transparent);
  white-space: nowrap;
  opacity: var(--g);
  transform: translateY(calc((1 - var(--g)) * -0.7em));
}
.aia-codebase-search-hits li:nth-child(2) { --i: 1; }
.aia-codebase-search-hits li:nth-child(3) { --i: 2; }
.aia-codebase-search-hits li:nth-child(4) { --i: 3; border-bottom: 0; }
.aia-codebase-search-hits span { color: color-mix(in srgb, currentColor 48%, transparent); }
.aia-codebase-search-hits b {
  margin: 0 auto 0 -0.35em;
  font-weight: 600;
}
.aia-codebase-search-hits i,
.aia-codebase-search-hits u {
  padding: 0.12em 0.4em;
  border-radius: 0.35em;
  font-style: normal;
  text-decoration: none;
}
.aia-codebase-search-hits i {
  background: color-mix(in srgb, var(--c) 12%, transparent);
  color: color-mix(in srgb, var(--c) 78%, currentColor);
}
.aia-codebase-search-hits u {
  background: color-mix(in srgb, currentColor 7%, transparent);
  color: color-mix(in srgb, currentColor 60%, transparent);
}
.aia-codebase-search-foot {
  display: grid;
  margin: 0.45em 0.2em 0;
  font-size: 0.72em;
}
.aia-codebase-search-foot > * { grid-area: 1 / 1; }
.aia-codebase-search-busy {
  background: linear-gradient(90deg, color-mix(in srgb, currentColor 45%, transparent) 35%, currentColor 50%, color-mix(in srgb, currentColor 45%, transparent) 65%) 0 0 / 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: calc(1 - var(--done));
  animation: aia-codebase-search-shine 1.6s linear infinite;
}
.aia-codebase-search-done {
  color: color-mix(in srgb, currentColor 60%, transparent);
  font-weight: 500;
  opacity: var(--done);
}
@keyframes aia-codebase-search-clock {
  0%, 8% { --aia-codebase-search-t: 0; }
  22% { --aia-codebase-search-t: 1; }
  36% { --aia-codebase-search-t: 2; }
  50% { --aia-codebase-search-t: 3; }
  64%, 97% { --aia-codebase-search-t: 4.6; }
  97.5%, 100% { --aia-codebase-search-t: 0; }
}
@keyframes aia-codebase-search-fade {
  0%, 92% { opacity: 1; }
  95.5%, 97.5% { opacity: 0; }
  100% { opacity: 1; }
}
@keyframes aia-codebase-search-scan {
  from { transform: translateX(-100%); }
  to { transform: translateX(300%); }
}
@keyframes aia-codebase-search-shine {
  from { background-position: 100% 0; }
  to { background-position: -50% 0; }
}
@media (prefers-reduced-motion: reduce) {
  .aia-codebase-search,
  .aia-codebase-search-num,
  .aia-codebase-search-hits {
    animation: none;
    --aia-codebase-search-t: 4.6;
  }
  .aia-codebase-search-bar::after,
  .aia-codebase-search-busy { animation: none; }
}

@media (prefers-reduced-motion: reduce) {
  .aia-codebase-search, .aia-codebase-search *, .aia-codebase-search::before, .aia-codebase-search::after, .aia-codebase-search *::before, .aia-codebase-search *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

Customizing this snippet

  • Color: set --aia-color on the element or a parent. Currently previewing #3b82f6.
  • Base size: set --aia-size. Every other dimension is in em, so the whole thing scales together. Currently previewing 16px.
  • Speed: change the duration on the transition or animation shorthand. Staggered delays are relative, so they keep their rhythm.
  • Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.

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