/* ============================================================
   FullInfill — Gyroid loader system  (assets/fi-loader.css)
   Drop-in styles for the gyroid-loader.gif everywhere on the site.
   Sizes: xs 18 · sm 28 · md 56 · lg 96 · xl 160
   ============================================================ */

/* The image itself — black background hex baked into the GIF.
   We layer a brand-tinted glow underneath so it sits on either theme. */
.fi-loader {
  --fi-loader-size: 56px;
  --fi-loader-glow: var(--accent-glow, rgba(95, 76, 155, 0.26));
  position: relative;
  width: var(--fi-loader-size);
  height: var(--fi-loader-size);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  isolation: isolate;
}
.fi-loader::before {
  /* soft purple bloom that breathes with the rotation */
  content: "";
  position: absolute;
  inset: -18%;
  background: radial-gradient(circle at 50% 50%, var(--fi-loader-glow), transparent 62%);
  filter: blur(6px);
  z-index: -1;
  opacity: 0.85;
  animation: fi-loader-pulse 2.4s ease-in-out infinite;
}
.fi-loader img {
  width: 100%;
  height: 100%;
  display: block;
  /* The GIF has a black hex backing — multiply it onto light backgrounds
     so the hex disappears and only the purple gyroid lines show through. */
  mix-blend-mode: multiply;
  filter: contrast(1.04);
}
[data-theme="dark"] .fi-loader img {
  /* On dark surfaces we want the inverse — let the hex glow. */
  mix-blend-mode: screen;
  filter: contrast(1.1) brightness(1.08);
}

/* If you need the raw hex card (e.g. on a printed-paper preview) */
.fi-loader.is-flat img { mix-blend-mode: normal; filter: none; }
.fi-loader.is-flat::before { display: none; }

/* Sizes */
.fi-loader.xs { --fi-loader-size: 18px; }
.fi-loader.sm { --fi-loader-size: 28px; }
.fi-loader.md { --fi-loader-size: 56px; }
.fi-loader.lg { --fi-loader-size: 96px; }
.fi-loader.xl { --fi-loader-size: 160px; }

@keyframes fi-loader-pulse {
  0%, 100% { opacity: 0.55; transform: scale(0.92); }
  50%      { opacity: 1;    transform: scale(1.08); }
}

/* ---- Inline label ("Loading typefaces…") ---- */
.fi-loader-row {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.fi-loader-row .fi-loader-label::after {
  /* animated dots */
  content: "";
  display: inline-block;
  width: 1ch;
  text-align: left;
  animation: fi-loader-dots 1.4s steps(4, end) infinite;
}
@keyframes fi-loader-dots {
  0%   { content: ""; }
  25%  { content: "."; }
  50%  { content: ".."; }
  75%  { content: "..."; }
  100% { content: ""; }
}

/* ---- Full-page overlay (route transitions, heavy work) ---- */
.fi-loader-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  background: color-mix(in srgb, var(--bg-0) 88%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
}
.fi-loader-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.fi-loader-overlay .fi-loader-status {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: center;
  max-width: 360px;
  line-height: 1.6;
}
.fi-loader-overlay .fi-loader-status strong {
  display: block;
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.18em;
  margin-bottom: 6px;
}
.fi-loader-overlay .fi-loader-progress {
  width: 200px;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.fi-loader-overlay .fi-loader-progress::before {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: fi-loader-sweep 1.6s ease-in-out infinite;
}
@keyframes fi-loader-sweep {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

/* ---- Inline panel overlay (e.g. studio viewport, drawer) ---- */
.fi-loader-panel {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: color-mix(in srgb, var(--surface-hi) 92%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: inherit;
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s ease;
}
.fi-loader-panel.is-visible { opacity: 1; pointer-events: auto; }

/* ---- Button-state loader (replaces text content) ---- */
.btn.is-loading,
button.submit.is-loading {
  pointer-events: none;
  opacity: 0.92;
  position: relative;
  color: transparent !important;
}
.btn.is-loading::after,
button.submit.is-loading::after { display: none; } /* hide the arrow */
.btn.is-loading > .fi-loader,
button.submit.is-loading > .fi-loader {
  position: absolute;
  inset: 0;
  margin: auto;
  --fi-loader-size: 22px;
}

/* ---- Skeleton card (deferred content lists like orders, goods) ---- */
.fi-skeleton {
  position: relative;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius, 4px);
  overflow: hidden;
}
.fi-skeleton::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 20%,
    color-mix(in srgb, var(--accent-soft) 80%, transparent) 50%,
    transparent 80%
  );
  animation: fi-skeleton-shimmer 1.6s ease-in-out infinite;
}
@keyframes fi-skeleton-shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ---- Inline upload indicator (sits next to a progress bar) ---- */
.fi-loader-upload {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm, 2px);
  background: var(--bg-1);
}
.fi-loader-upload .fi-loader { --fi-loader-size: 32px; }
.fi-loader-upload-meta {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.fi-loader-upload-meta .row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.fi-loader-upload-meta .name {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.fi-loader-upload-meta .pct {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
}
.fi-loader-upload-meta .bar {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.fi-loader-upload-meta .bar > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-hi));
  transition: width .3s cubic-bezier(.2,.7,.2,1);
}

/* ---- Tiny boot loader (initial JS bootstrap, before app.js runs) ---- */
.fi-loader-boot {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 8px;
  background: var(--surface-hi);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  box-shadow: 0 8px 24px rgba(17, 17, 19, 0.08);
}
.fi-loader-boot .fi-loader { --fi-loader-size: 20px; }