body[data-tool="remove-background"] {
  --rb-ink: #16121c;
  --rb-muted: #7a7388;
  --rb-line: rgba(40, 24, 70, 0.1);
}

body[data-tool="remove-background"] [hidden] {
  display: none !important;
}

/* Header CTA "Đổi ảnh" trùng nghĩa với tool này — ẩn cho đỡ rối */
body[data-tool="remove-background"] .header-actions > a.btn-primary {
  display: none !important;
}

body[data-tool="remove-background"] .tool-workspace {
  padding: 0 0 2rem !important;
  background: #f6f4f9 !important;
}

body[data-tool="remove-background"] .rb-page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem 0;
}

body[data-tool="remove-background"] .rb-intro {
  text-align: center;
  margin: 0 auto 1.75rem;
  max-width: 28rem;
}
body[data-tool="remove-background"] .rb-intro h1 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.15rem);
  font-weight: 760;
  letter-spacing: -0.04em;
  color: var(--rb-ink);
}
body[data-tool="remove-background"] .rb-intro p {
  margin: 0.45rem 0 0;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--rb-muted);
}

body[data-tool="remove-background"] .rb-board {
  position: relative;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset, 0 16px 40px rgba(50, 30, 90, 0.06);
  overflow: hidden;
}

body[data-tool="remove-background"] .upload-zone {
  min-height: 340px;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  display: grid;
  place-items: center;
}
body[data-tool="remove-background"] .upload-zone::before { display: none; }
body[data-tool="remove-background"] .upload-zone:hover,
body[data-tool="remove-background"] .upload-zone.dragover {
  background: rgba(124, 58, 237, 0.035);
}
body[data-tool="remove-background"] .upload-icon { display: none; }
body[data-tool="remove-background"] .rb-drop-kicker {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--rb-ink);
}
body[data-tool="remove-background"] .rb-drop-sub {
  margin: 0.45rem 0 0;
  font-size: 0.88rem;
  color: var(--rb-muted);
}
body[data-tool="remove-background"] .upload-zone.has-file,
body[data-tool="remove-background"] .rb-work {
  display: none;
}
body[data-tool="remove-background"] .rb-board.has-file .upload-zone {
  display: none !important;
}
body[data-tool="remove-background"] .rb-board.has-file .rb-work {
  display: grid;
}
body[data-tool="remove-background"] #fileList {
  display: none !important;
}

body[data-tool="remove-background"] .rb-work {
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  min-height: 420px;
}

body[data-tool="remove-background"] .rb-shot {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1rem 1.15rem 1.1rem;
}
body[data-tool="remove-background"] .rb-shot figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0 0 0.7rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rb-muted);
}

body[data-tool="remove-background"] .rb-text-btn {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: none;
  color: var(--primary);
  cursor: pointer;
}
body[data-tool="remove-background"] .rb-text-btn:disabled {
  opacity: 0.35;
  cursor: default;
}
body[data-tool="remove-background"] .rb-text-btn--strong { color: var(--rb-ink); }

body[data-tool="remove-background"] .rb-status {
  font-size: 0.78rem;
  font-weight: 550;
  letter-spacing: 0;
  text-transform: none;
  max-width: 16rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
body[data-tool="remove-background"] #status.status-err { color: #b42318; }

body[data-tool="remove-background"] .rb-frame {
  flex: 1;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f3f1f6;
  border-radius: 14px;
  overflow: hidden;
}
body[data-tool="remove-background"] .rb-frame img {
  max-width: 100%;
  max-height: 380px;
  object-fit: contain;
  display: block;
}

body[data-tool="remove-background"] .rb-file {
  margin: 0.65rem 0 0;
  font-size: 0.78rem;
  color: var(--rb-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body[data-tool="remove-background"] .rb-mid {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.15rem;
}
body[data-tool="remove-background"] .rb-run {
  width: 88px;
  height: 88px;
  border: 0;
  border-radius: 50%;
  background: var(--gradient-brand, linear-gradient(135deg, #7c3aed, #6d28d9));
  color: #fff;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(109, 40, 217, 0.32);
}
body[data-tool="remove-background"] .rb-run:hover:not(:disabled) {
  transform: scale(1.04);
}
body[data-tool="remove-background"] .rb-run:disabled {
  opacity: 0.45;
  cursor: default;
  box-shadow: none;
}
body[data-tool="remove-background"] .rb-run.is-busy {
  opacity: 0.85;
}

body[data-tool="remove-background"] .rb-frame--out {
  background: #f3f1f6;
}
body[data-tool="remove-background"] .rb-board.is-done .rb-frame--out[data-bg="check"] {
  background-color: #f8fafc;
  background-image:
    linear-gradient(45deg, #e2e8f0 25%, transparent 25%),
    linear-gradient(-45deg, #e2e8f0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e2e8f0 75%),
    linear-gradient(-45deg, transparent 75%, #e2e8f0 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}
body[data-tool="remove-background"] .rb-board.is-done .rb-frame--out[data-bg="light"] { background: #fff; }
body[data-tool="remove-background"] .rb-board.is-done .rb-frame--out[data-bg="dark"] { background: #1c1822; }

body[data-tool="remove-background"] .rb-wait {
  font-size: 0.88rem;
  color: #b0a9bc;
}
body[data-tool="remove-background"] .rb-frame--out.is-busy {
  opacity: 0.55;
}

body[data-tool="remove-background"] .rb-out-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-top: 0.65rem;
}
body[data-tool="remove-background"] .rb-bg-toggle {
  display: flex;
  gap: 0.65rem;
}
body[data-tool="remove-background"] .rb-bg-toggle button {
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 0.75rem;
  color: var(--rb-muted);
  cursor: pointer;
}
body[data-tool="remove-background"] .rb-bg-toggle button.is-on {
  color: var(--rb-ink);
  font-weight: 700;
}
body[data-tool="remove-background"] .result-actions {
  display: flex;
  gap: 1rem;
}

body[data-tool="remove-background"] .rb-progress {
  height: 2px;
  background: transparent;
}
body[data-tool="remove-background"] .rb-progress > span,
body[data-tool="remove-background"] .ot-progress > span {
  display: block;
  height: 2px;
  width: 0;
  background: #7c3aed;
  transition: width 0.25s ease;
}

body[data-tool="remove-background"] .protocol-banner {
  display: none;
  margin: 0 0 1rem;
  padding: 0.6rem 0.85rem;
  border-radius: 10px;
}
body[data-tool="remove-background"] .protocol-banner.is-on { display: block; }


[data-theme="dark"] body[data-tool="remove-background"] .tool-workspace,
html[data-theme="dark"] body[data-tool="remove-background"] .tool-workspace {
  background: #141119 !important;
}
[data-theme="dark"] body[data-tool="remove-background"],
html[data-theme="dark"] body[data-tool="remove-background"] {
  --rb-ink: #f3eefc;
  --rb-muted: #9b93ab;
}
[data-theme="dark"] body[data-tool="remove-background"] .rb-board,
html[data-theme="dark"] body[data-tool="remove-background"] .rb-board {
  background: #1c1824;
}
[data-theme="dark"] body[data-tool="remove-background"] .rb-frame,
html[data-theme="dark"] body[data-tool="remove-background"] .rb-frame {
  background: #141119;
}

@media (max-width: 800px) {
  body[data-tool="remove-background"] .rb-work {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  body[data-tool="remove-background"] .rb-mid {
    padding: 0 1rem 0.25rem;
  }
  body[data-tool="remove-background"] .rb-run {
    width: 100%;
    height: 48px;
    border-radius: 12px;
  }
  body[data-tool="remove-background"] .rb-frame {
    min-height: 220px;
  }
  body[data-tool="remove-background"] .rb-frame img {
    max-height: 260px;
  }
}