#hfc-vec, #hfc-vec * { box-sizing: border-box; }
#hfc-vec {
  --vec-ink: #1c1b1a;
  --vec-paper: #eff1ec;
  --vec-card: #ffffff;
  --vec-accent: #d7263d;
  --vec-accent-soft: rgba(215,38,61,0.08);
  --vec-good: #2f8f5b;
  --vec-line: #d8dad4;
  --vec-muted: #6b6e68;
  --vec-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --vec-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  max-width: 760px;
  margin: 2rem auto;
  background: var(--vec-card);
  border: 1px solid var(--vec-line);
  border-radius: 14px;
  overflow: hidden;
  font-family: var(--vec-sans);
  color: var(--vec-ink);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
#hfc-vec [hidden] { display: none !important; }
#hfc-vec .hfc-vec__header { display: flex; align-items: center; gap: 12px; background: var(--vec-ink); color: #f4f4f2; padding: 18px 20px; }
#hfc-vec .hfc-vec__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--vec-accent); flex-shrink: 0; animation: hfc-vec-pulse 2.2s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) { #hfc-vec .hfc-vec__dot { animation: none; } }
@keyframes hfc-vec-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
#hfc-vec .hfc-vec__title { margin: 0; font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; color: #f4f4f2 !important; }
#hfc-vec .hfc-vec__tag { margin: 2px 0 0; font-size: 0.85rem; color: #c7c7c3 !important; }
#hfc-vec .hfc-vec__body { padding: 20px; background: var(--vec-paper); }

#hfc-vec .hfc-vec__dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  gap: 6px; padding: 30px 16px; border: 1.5px dashed var(--vec-line); border-radius: 12px; background: var(--vec-card); cursor: pointer;
}
#hfc-vec .hfc-vec__dropzone.is-dragover { border-color: var(--vec-accent); background: var(--vec-accent-soft); }
#hfc-vec .hfc-vec__dropmain { font-size: 0.92rem; font-weight: 600; color: var(--vec-ink) !important; }
#hfc-vec .hfc-vec__dropnote { font-size: 0.76rem; color: var(--vec-muted) !important; }

#hfc-vec .hfc-vec__workspace { display: flex; flex-direction: column; gap: 14px; margin-top: 14px; }
#hfc-vec .hfc-vec__controls {
  background: var(--vec-card); border: 1px solid var(--vec-line); border-radius: 12px; padding: 14px;
  display: flex; flex-direction: column; gap: 14px;
}
#hfc-vec .hfc-vec__label { display: block; font-size: 0.82rem; color: var(--vec-muted) !important; margin-bottom: 6px; }
#hfc-vec .hfc-vec__row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
#hfc-vec .hfc-vec__range { width: 100%; accent-color: var(--vec-accent); }
#hfc-vec .hfc-vec__hint { display: block; font-size: 0.78rem; color: var(--vec-muted) !important; margin-top: 2px; line-height: 1.4; }
#hfc-vec .hfc-vec__select {
  width: 100%; font-family: var(--vec-sans); font-size: 0.88rem; padding: 8px 10px; margin: 0;
  border: 1px solid var(--vec-line); border-radius: 8px; background: var(--vec-paper); color: var(--vec-ink) !important;
}
#hfc-vec .hfc-vec__segmented { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
#hfc-vec .hfc-vec__segmented--4 { grid-template-columns: repeat(4, 1fr); }
#hfc-vec .hfc-vec__seg {
  padding: 9px 6px; border: 1px solid var(--vec-line); border-radius: 9px; background: var(--vec-card);
  font-family: var(--vec-sans); font-size: 0.8rem; font-weight: 500; line-height: 1.25;
  color: var(--vec-ink) !important; cursor: pointer; text-align: center;
}
#hfc-vec .hfc-vec__seg.is-active { border-color: var(--vec-accent); background: var(--vec-accent-soft); color: var(--vec-accent) !important; }
#hfc-vec .hfc-vec__toggle { display: inline-flex; align-items: center; gap: 8px; font-size: 0.88rem; cursor: pointer; color: var(--vec-ink) !important; }
#hfc-vec .hfc-vec__toggle input { width: 18px; height: 18px; margin: 0; accent-color: var(--vec-accent); }

#hfc-vec .hfc-vec__palette { display: flex; flex-wrap: wrap; gap: 6px; }
#hfc-vec .hfc-vec__swatch {
  width: 30px; height: 30px; border-radius: 7px; border: 2px solid var(--vec-card);
  box-shadow: 0 0 0 1px var(--vec-line); cursor: pointer; padding: 0; position: relative;
}
#hfc-vec .hfc-vec__swatch.is-off { opacity: .35; }
#hfc-vec .hfc-vec__swatch.is-off::after {
  content: ""; position: absolute; left: 50%; top: -2px; bottom: -2px; width: 2px; background: var(--vec-accent); transform: rotate(45deg);
}
#hfc-vec .hfc-vec__swatch.is-bg { box-shadow: 0 0 0 1px var(--vec-line), inset 0 0 0 2px rgba(0,0,0,.12); }

#hfc-vec .hfc-vec__compare { background: var(--vec-card); border: 1px solid var(--vec-line); border-radius: 12px; padding: 12px; }
#hfc-vec .hfc-vec__tabs { display: flex; gap: 4px; background: var(--vec-paper); border-radius: 9px; padding: 4px; margin-bottom: 10px; }
#hfc-vec .hfc-vec__tab {
  flex: 1; padding: 7px 8px; border: none; background: transparent; border-radius: 6px; cursor: pointer;
  font-family: var(--vec-sans); font-size: 0.82rem; font-weight: 500; color: var(--vec-muted) !important;
}
#hfc-vec .hfc-vec__tab.is-active { background: var(--vec-ink); color: #fff !important; }
#hfc-vec .hfc-vec__stage {
  position: relative; display: grid; grid-template-columns: 1fr; gap: 10px; min-height: 220px;
  background: repeating-conic-gradient(#e6e8e2 0% 25%, #f7f8f5 0% 50%) 50% / 16px 16px; border-radius: 9px; padding: 10px;
}
#hfc-vec .hfc-vec__stage[data-view="split"] { grid-template-columns: 1fr 1fr; }
#hfc-vec .hfc-vec__stage[data-view="vector"] .hfc-vec__pane--original,
#hfc-vec .hfc-vec__stage[data-view="original"] .hfc-vec__pane--vector { display: none; }
#hfc-vec .hfc-vec__pane { display: flex; align-items: center; justify-content: center; min-width: 0; }
#hfc-vec .hfc-vec__pane img, #hfc-vec .hfc-vec__svg svg { display: block; max-width: 100%; max-height: 460px; width: auto; height: auto; }
#hfc-vec .hfc-vec__svg { width: 100%; display: flex; justify-content: center; }
#hfc-vec .hfc-vec__busy {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  background: rgba(255,255,255,.72); border-radius: 9px; font-size: 0.88rem; font-weight: 600;
}
#hfc-vec .hfc-vec__bar { width: 60%; max-width: 260px; height: 6px; border-radius: 3px; background: var(--vec-line); overflow: hidden; }
#hfc-vec .hfc-vec__bar i { display: block; height: 100%; width: 0; background: var(--vec-accent); transition: width .15s; }
#hfc-vec .hfc-vec__stats { margin: 8px 0 0; font-size: 0.78rem; font-family: var(--vec-mono); color: var(--vec-muted) !important; }

#hfc-vec .hfc-vec__actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
#hfc-vec .hfc-vec__btn {
  flex: 1; min-width: 150px; padding: 11px 14px; border-radius: 9px; border: 1px solid var(--vec-accent);
  background: var(--vec-accent); color: #fff !important; font-size: 0.86rem; font-weight: 600; cursor: pointer; font-family: var(--vec-sans);
}
#hfc-vec .hfc-vec__btn--ghost { background: var(--vec-card); color: var(--vec-accent) !important; }
#hfc-vec .hfc-vec__btn:disabled { opacity: .5; cursor: not-allowed; }
#hfc-vec .hfc-vec__link { background: none; border: none; padding: 0 4px; cursor: pointer; font-size: 0.82rem; color: var(--vec-muted) !important; text-decoration: underline; }
#hfc-vec .hfc-vec__note { margin: 0; font-size: 0.76rem; line-height: 1.45; color: var(--vec-muted) !important; }
#hfc-vec .hfc-vec__error { margin: 12px 0 0; padding: 10px 12px; border-radius: 9px; background: var(--vec-accent-soft); color: var(--vec-ink) !important; font-size: 0.85rem; }

#hfc-vec button:focus-visible, #hfc-vec input:focus-visible, #hfc-vec select:focus-visible, #hfc-vec label:focus-within {
  outline: 2px solid var(--vec-accent); outline-offset: 2px;
}
@media (max-width: 560px) {
  #hfc-vec .hfc-vec__body { padding: 14px; }
  #hfc-vec .hfc-vec__row2 { grid-template-columns: 1fr; }
  #hfc-vec .hfc-vec__segmented--4 { grid-template-columns: 1fr 1fr; }
  #hfc-vec .hfc-vec__stage[data-view="split"] { grid-template-columns: 1fr; }
}