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Pour fill confirm

Variant: Ease-out

A vessel-shaped status meter fills to a held level and settles, reading as an ambient "in progress → filled" indicator for a background task such as an upload or sync. The fill is driven by clip-path on a single layer so no layout is touched, and the level line lags the body by a beat so the surface looks like it is catching up with the pour. This sibling uses a decisive ease-out on the rise: the level moves most in the first third, which is when the eye is on it.

progressstatusfillloopambient

The source

A complete HTML document. Paste it into an empty .html file and it plays — no stylesheet, script, font, or image to fetch.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Pour fill confirm — ease-out</title>
<style>
:root {
  /* Neutrals — fixed, never remixed. */
  --ivory: #faf9f5;
  --paper: #ffffff;
  --oat: #e3dacc;
  --slate: #141413;

  /* Knobs — the remix API. A knob exists iff declared here and used below. */
  --hue: 38.8;
  --lift: 0;
  --chroma: 1;
  --round: 1;
  --speed: 1;

  /* Accents — derived from the knobs with the family's offsets baked in,
     so one hue roll moves them together. Defaults reproduce the original hex
     (#d97757 / #b85c3e / #788c5d / #b04a3f). */
  --clay: oklch(calc(0.6724 + var(--lift)) calc(0.1308 * var(--chroma)) var(--hue));
  --clay-d: oklch(calc(0.5797 + var(--lift)) calc(0.127 * var(--chroma)) var(--hue));
  --olive: oklch(calc(0.6118 + var(--lift)) calc(0.0713 * var(--chroma)) calc(var(--hue) + 88.3));
  --rust: oklch(calc(0.5408 + var(--lift)) calc(0.1357 * var(--chroma)) calc(var(--hue) - 10.3));

  /* Clock — every duration in the document runs off --t. */
  --cycle: 3.2s;
  --t: calc(var(--cycle) / var(--speed));

  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-accent: cubic-bezier(0.23, 1, 0.32, 1);

  /* File-specific: the level line trails the body by one small beat. */
  --_lag: calc(60ms / var(--speed));
  --_label-in: calc(220ms / var(--speed));
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--ivory);
  color: var(--slate);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.card {
  width: min(380px, 90vw);
  padding: clamp(16px, 5vw, 24px);
  background: var(--paper);
  border: 1px solid var(--oat);
  border-radius: calc(14px * var(--round));
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: clamp(14px, 4vw, 20px);
}

/* The vessel: a soft-shouldered form, wider at the base than the mouth. */
.vessel {
  position: relative;
  width: clamp(56px, 17vw, 68px);
  height: clamp(76px, 23vw, 92px);
  border-radius: calc(10px * var(--round)) calc(10px * var(--round)) calc(26px * var(--round)) calc(26px * var(--round));
  background: var(--ivory);
  border: 1.5px solid var(--oat);
  overflow: hidden;
  flex: none;
}

.body-fill,
.level {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 100%;
}

.body-fill {
  background: linear-gradient(180deg, var(--clay) 0%, var(--clay-d) 100%);
  /* clip-path, not height — no layout per frame. */
  clip-path: inset(100% 0 0 0);
  animation: rise var(--t) var(--ease-accent) infinite;
}

.level {
  background: linear-gradient(180deg, color-mix(in oklch, var(--paper) 62%, var(--clay)) 0 2.5px, transparent 2.5px);
  clip-path: inset(100% 0 0 0);
  animation: rise var(--t) var(--ease-accent) var(--_lag) infinite;
}

@keyframes rise {
  0%      { clip-path: inset(100% 0 0 0); }
  46%     { clip-path: inset(22% 0 0 0); }
  82%     { clip-path: inset(22% 0 0 0); } /* hold: the filled state is the message */
  100%    { clip-path: inset(100% 0 0 0); }
}

.copy { min-width: 0; }

.title {
  font-size: clamp(13px, 3.6vw, 15px);
  font-weight: 550;
  letter-spacing: 0.01em;
  margin: 0 0 6px;
}

.sub {
  font-size: clamp(11px, 3.1vw, 12.5px);
  line-height: 1.35;
  margin: 0;
  color: color-mix(in oklch, var(--slate) 55%, var(--ivory));
}

.ticks {
  margin-top: 12px;
  display: flex;
  gap: 6px;
}

.ticks i {
  display: block;
  width: clamp(16px, 5vw, 22px);
  height: 3px;
  border-radius: 999px;
  background: var(--oat);
  transform-origin: left center;
  transform: scaleX(0.35);
  animation: tick var(--t) var(--ease-out) infinite;
}

.ticks i:nth-child(1) { animation-delay: calc(0ms / var(--speed)); }
.ticks i:nth-child(2) { animation-delay: calc(90ms / var(--speed)); }
.ticks i:nth-child(3) { animation-delay: calc(180ms / var(--speed)); }

@keyframes tick {
  0%   { transform: scaleX(0.35); background: var(--oat); }
  40%  { transform: scaleX(1); background: var(--olive); }
  82%  { transform: scaleX(1); background: var(--olive); }
  100% { transform: scaleX(0.35); background: var(--oat); }
}

.mark {
  display: inline-block;
  margin-left: 6px;
  color: var(--olive);
  opacity: 0;
  transform: translateY(2px);
  animation: mark var(--t) var(--ease-out) var(--_label-in) infinite;
}

@keyframes mark {
  0%, 14%   { opacity: 0; transform: translateY(2px); }
  40%, 82%  { opacity: 1; transform: translateY(0); }
  92%, 100% { opacity: 0; transform: translateY(0); }
}

@media (max-width: 380px) {
  .card { padding: 14px; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  /* Movement out, meaning kept: the fill holds and breathes instead of rising. */
  .body-fill {
    clip-path: inset(22% 0 0 0);
    animation: hold-breathe calc(var(--cycle) * 2.2 / var(--speed)) ease-in-out infinite;
  }
  .level {
    clip-path: inset(22% 0 0 0);
    animation: hold-breathe calc(var(--cycle) * 2.2 / var(--speed)) ease-in-out calc(60ms / var(--speed)) infinite;
  }
  .ticks i {
    transform: scaleX(1);
    background: var(--olive);
    animation: none;
  }
  .mark { opacity: 1; transform: none; animation: none; }

  @keyframes hold-breathe {
    0%, 100% { opacity: 0.72; }
    50%      { opacity: 1; }
  }
}
</style>
</head>
<body>
  <div class="card">
    <div class="vessel" aria-hidden="true">
      <div class="body-fill"></div>
      <div class="level"></div>
    </div>
    <div class="copy">
      <p class="title">Archive synced<span class="mark">&#10003;</span></p>
      <p class="sub">Local changes written to the vault.</p>
      <div class="ticks" aria-hidden="true"><i></i><i></i><i></i></div>
    </div>
  </div>
</body>
</html>

The variant family

Same idea, one axis moved. Compare them side by side before you commit.