/* ==========================================================================
   Ceremonia Invites — the loading mark, and the small interactions that go
   with it. Loaded on every page, storefront and panel alike, so a wait looks
   the same wherever it happens.
   ========================================================================== */

/* --------------------------------------------------------------- the mark */
/*
  The CI monogram drawing itself on, in the manner of the Threads mark: each
  stroke runs on, the pair holds a beat, then they fade and it repeats.

  Drawn as vector rather than animating the logo file. The artwork is a raster
  with a cream ground, which is invisible against a cream page and cannot be
  stroke-animated at all. The letterforms here are a close high-contrast serif,
  not the logo's own face — see views/partials/ci-mark.ejs.
*/
.ci-load {
  --ci-size: 76px;
  --ci-speed: 2s;
  position: relative;
  width: var(--ci-size);
  height: var(--ci-size);
  flex: none;
  display: grid;
  place-items: center;
  color: var(--ci-ring, var(--maroon));
}

.ci-svg { width: 100%; height: 100%; display: block; overflow: visible; }

/* Each path is dashed to its own length, so the offset animates from "nothing
   drawn" to "fully drawn" regardless of how long the path actually is. */
.ci-c { stroke-dasharray: 134; stroke-dashoffset: 134; animation: ci-draw var(--ci-speed) ease-in-out infinite; }
.ci-i { stroke-dasharray: 60;  stroke-dashoffset: 60;  animation: ci-draw var(--ci-speed) ease-in-out infinite .18s; }
.ci-s { stroke-dasharray: 44;  stroke-dashoffset: 44;  animation: ci-draw var(--ci-speed) ease-in-out infinite .3s; }

@keyframes ci-draw {
  0%   { stroke-dashoffset: var(--len, 210); opacity: 0; }
  12%  { opacity: 1; }
  45%  { stroke-dashoffset: 0; opacity: 1; }
  72%  { stroke-dashoffset: 0; opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 0; }
}
.ci-c { --len: 134; }
.ci-i { --len: 60; }
.ci-s { --len: 44; }

/* Sizes. */
.ci-load.is-sm { --ci-size: 38px; }
.ci-load.is-lg { --ci-size: 104px; }

/* -------------------------------------------------------- page overlay */
/* Covers the page while something is genuinely in flight. Not shown on first
   paint — a loader that appears before anything is waiting only makes the page
   feel slower. */
.ci-overlay {
  position: fixed;
  inset: 0;
  /* Enough blur that the screen is plainly out of action, not so much that it
     stops looking like the page you were on. */
  background: color-mix(in srgb, var(--ci-bg, var(--cream)) 72%, transparent);
  -webkit-backdrop-filter: blur(7px) saturate(120%);
  backdrop-filter: blur(7px) saturate(120%);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 18px;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
}
.ci-overlay.show { opacity: 1; pointer-events: auto; }
/* The mark is the thing on screen while a save is in flight, so it is drawn
   at the size that says so. */
.ci-overlay .ci-load { --ci-size: 132px; color: var(--maroon); }
/* Nothing behind the curtain is reachable — a save half-applied because
   somebody kept typing is worse than a moment of waiting. */
html.is-waiting, html.is-waiting body { overflow: hidden; }
html.is-waiting body > *:not(.ci-overlay) { pointer-events: none; }

@media (max-width: 620px) {
  .ci-overlay .ci-load { --ci-size: 96px; }
}
.ci-overlay p {
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--ci-ink, var(--ink-soft));
  margin: 0;
}

/* ---------------------------------------------------- button in progress */
/* The label stays put and the mark turns beside it, so the button does not
   change width and shift everything around it. */
.is-working { position: relative; pointer-events: none; }
.is-working > * { opacity: .45; }
.is-working::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 18px; height: 18px;
  margin: -9px 0 0 -9px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-right-color: transparent;
  opacity: .9;
  animation: ci-turn .7s linear infinite;
}

/* --------------------------------------------------------- placeholders */
/* Sits behind a card preview until its frame has loaded, so the grid does not
   flash empty boxes. */
.ci-ph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--ci-ph-bg, var(--maroon-wash));
  transition: opacity .4s ease;
}
.ci-ph.gone { opacity: 0; pointer-events: none; }

@media (prefers-reduced-motion: reduce) {
  .ci-load .ci-mark,
  .ci-load::before,
  .is-working::after {
    animation-duration: 0s;
    animation-iteration-count: 1;
  }
  .ci-load .ci-mark {
    -webkit-mask-image: none;
    mask-image: none;
    opacity: 1;
  }
  .ci-overlay, .ci-ph { transition: none; }
}