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

#hfc-ren .hfc-ren__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(--ren-line); border-radius: 12px; background: var(--ren-card); cursor: pointer;
}
#hfc-ren .hfc-ren__dropzone.is-dragover { border-color: var(--ren-accent); background: var(--ren-accent-soft); }
#hfc-ren .hfc-ren__dropmain { font-size: 0.92rem; font-weight: 600; color: var(--ren-ink) !important; }
#hfc-ren .hfc-ren__dropnote { font-size: 0.76rem; color: var(--ren-muted) !important; }

#hfc-ren .hfc-ren__workspace { display: flex; flex-direction: column; gap: 14px; margin-top: 14px; }
#hfc-ren .hfc-ren__controls {
  background: var(--ren-card); border: 1px solid var(--ren-line); border-radius: 12px; padding: 14px;
  display: flex; flex-direction: column; gap: 14px;
}
#hfc-ren .hfc-ren__label { display: block; font-size: 0.82rem; color: var(--ren-muted) !important; margin-bottom: 6px; }
#hfc-ren .hfc-ren__row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
#hfc-ren .hfc-ren__range { width: 100%; accent-color: var(--ren-accent); }
#hfc-ren .hfc-ren__select {
  width: 100%; font-family: var(--ren-sans); font-size: 0.88rem; padding: 8px 10px; margin: 0;
  border: 1px solid var(--ren-line); border-radius: 8px; background: var(--ren-paper); color: var(--ren-ink) !important;
}
#hfc-ren .hfc-ren__segmented { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
#hfc-ren .hfc-ren__segmented--4 { grid-template-columns: repeat(4, 1fr); }
#hfc-ren .hfc-ren__seg {
  padding: 9px 6px; border: 1px solid var(--ren-line); border-radius: 9px; background: var(--ren-card);
  font-family: var(--ren-sans); font-size: 0.8rem; font-weight: 500; line-height: 1.25;
  color: var(--ren-ink) !important; cursor: pointer; text-align: center;
}
#hfc-ren .hfc-ren__seg.is-active { border-color: var(--ren-accent); background: var(--ren-accent-soft); color: var(--ren-accent) !important; }
#hfc-ren .hfc-ren__toggle { display: inline-flex; align-items: center; gap: 8px; font-size: 0.88rem; cursor: pointer; color: var(--ren-ink) !important; }
#hfc-ren .hfc-ren__toggle input { width: 18px; height: 18px; margin: 0; accent-color: var(--ren-accent); }

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

#hfc-ren button:focus-visible, #hfc-ren input:focus-visible, #hfc-ren select:focus-visible, #hfc-ren label:focus-within {
  outline: 2px solid var(--ren-accent); outline-offset: 2px;
}
@media (max-width: 560px) {
  #hfc-ren .hfc-ren__body { padding: 14px; }
  #hfc-ren .hfc-ren__row2 { grid-template-columns: 1fr; }
  #hfc-ren .hfc-ren__segmented--4 { grid-template-columns: 1fr 1fr; }
}

#hfc-ren .hfc-ren__row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
#hfc-ren .hfc-ren__input { width: 100%; font-family: var(--ren-sans); font-size: 0.9rem; padding: 8px 10px; margin: 0; border: 1px solid var(--ren-line); border-radius: 8px; background: var(--ren-paper); color: var(--ren-ink) !important; }
#hfc-ren .hfc-ren__toggles { display: flex; flex-direction: column; gap: 8px; }
#hfc-ren .hfc-ren__toggle { align-items: flex-start; font-size: 0.84rem; line-height: 1.4; }
#hfc-ren .hfc-ren__toggle input { margin-top: 1px; flex-shrink: 0; }
#hfc-ren .hfc-ren__listwrap { background: var(--ren-card); border: 1px solid var(--ren-line); border-radius: 12px; overflow: hidden; }
#hfc-ren .hfc-ren__listhead { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--ren-line); font-size: 0.84rem; font-weight: 600; }
#hfc-ren .hfc-ren__addmore { color: var(--ren-accent) !important; cursor: pointer; font-weight: 600; }
#hfc-ren .hfc-ren__list { list-style: none; margin: 0 !important; padding: 0 !important; max-height: 420px; overflow-y: auto; }
#hfc-ren .hfc-ren__row { display: grid; grid-template-columns: 1fr auto 1fr auto; gap: 8px; align-items: center; padding: 8px 14px; border-bottom: 1px solid var(--ren-paper); font-size: 0.82rem; margin: 0 !important; }
#hfc-ren .hfc-ren__old { color: var(--ren-muted) !important; overflow-wrap: anywhere; font-family: var(--ren-mono); font-size: 0.76rem; }
#hfc-ren .hfc-ren__arrow { color: var(--ren-muted) !important; }
#hfc-ren .hfc-ren__new { font-weight: 600; overflow-wrap: anywhere; font-family: var(--ren-mono); font-size: 0.78rem; color: var(--ren-ink) !important; }
#hfc-ren .hfc-ren__new.is-dup { color: #b26a00 !important; }
#hfc-ren .hfc-ren__rm { border: none; background: none; cursor: pointer; font-size: 1rem; line-height: 1; color: var(--ren-muted) !important; padding: 2px 4px; }
#hfc-ren .hfc-ren__rm:hover { color: var(--ren-accent) !important; }
@media (max-width: 560px) {
  #hfc-ren .hfc-ren__row3 { grid-template-columns: 1fr 1fr; }
  #hfc-ren .hfc-ren__row { grid-template-columns: 1fr auto; }
  #hfc-ren .hfc-ren__arrow { display: none; }
  #hfc-ren .hfc-ren__new { grid-column: 1; }
  #hfc-ren .hfc-ren__rm { grid-row: 1 / span 2; grid-column: 2; }
}