#ai-background-remover { background: #dde0dd var(--material-mineral); color: var(--frame-ink); min-width: 0; }
#ai-background-remover [hidden] { display: none !important; }
.bgr-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 38px 36px 30px; border-bottom: 1px solid var(--frame-line); }
.bgr-header h1 { font-size: 30px; line-height: 1.3; margin: 8px 0 0; font-weight: 600; }
.bgr-header .section-index { margin: 0; }
.bgr-run-actions, .bgr-file-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
#ai-background-remover .bgr-action { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 9px 14px; border: 1px solid #bcc1be; border-radius: 4px; background: linear-gradient(135deg,#fff,#edf0ed); color: var(--frame-ink); font: 600 13px/1.5 var(--font-ui); cursor: pointer; text-decoration: none; white-space: normal; box-shadow: inset 0 1px 0 #fff, -3px -3px 10px var(--material-led-soft), 4px 6px 10px #1f242110; backdrop-filter: none; filter: none; transform: none; }
#ai-background-remover .bgr-action:hover { background: #fff; border-color: #8c958e; }
#ai-background-remover .bgr-primary { background: #e34c35; color: #fff; border-color: #c73d28; }
#ai-background-remover .bgr-primary:hover { background: #c73d28; }
#ai-background-remover .bgr-icon { width: 44px; height: 44px; padding: 0; flex: 0 0 44px; }
#ai-background-remover .bgr-action i { font-size: 21px; }
#ai-background-remover .pe-7s-download::before { content: "\e65c"; }
#ai-background-remover :is(button:disabled, a[aria-disabled="true"]) { opacity: .48; cursor: not-allowed; }
#ai-background-remover :is(button,input,a,[tabindex]):focus-visible { outline: 2px solid #ad3525; outline-offset: 3px; }
.bgr-toolbar { display: flex; align-items: center; gap: 20px; justify-content: space-between; padding: 18px 36px; background: #ffffff60; border-bottom: 1px solid var(--frame-line); }
.bgr-file-meta { min-width: 0; max-width: 42%; overflow-wrap: anywhere; font-size: 12px; color: var(--frame-muted); margin: 0; text-align: right; }
.bgr-workspace { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
.bgr-pane { min-width: 0; padding: 22px 28px 28px; background: linear-gradient(135deg,#ffffffb3,#eff1ef70),var(--material-reflection); background-size: auto,720px 720px; border-top: 2px solid #fff1cb; }
.bgr-pane + .bgr-pane { border-left: 1px solid var(--frame-line); }
.bgr-pane-heading { display: flex; align-items: baseline; gap: 12px; justify-content: space-between; min-height: 36px; }
.bgr-pane-heading h2 { font-size: 16px; font-weight: 600; margin: 0; }
.bgr-pane-heading span { font: 11px/1.5 var(--font-code); color: var(--frame-muted); }
.bgr-preview { display: flex; position: relative; align-items: center; justify-content: center; width: 100%; height: 360px; border: 1px solid #bac1bb; border-radius: 4px; overflow: hidden; background-color: #e3e6e3; }
.bgr-preview canvas { display: block; max-width: 100%; max-height: 100%; width: auto; height: auto; }
.bgr-dropzone { cursor: pointer; border-style: dashed; }
.bgr-dropzone.is-dragging { outline: 2px solid var(--frame-ember); outline-offset: -2px; background-color: #fffaf0; }
.bgr-dropzone[aria-disabled="true"] { cursor: default; }
.bgr-checker { background-color: #fff; background-image: conic-gradient(#d8ddda 25%, transparent 0 50%, #d8ddda 0 75%, transparent 0); background-size: 20px 20px; }
.bgr-empty { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 24px; text-align: center; color: #54605a; }
.bgr-empty i { font-size: 48px; color: #79877e; }
.bgr-empty strong { font-size: 15px; font-weight: 600; }
.bgr-empty span { font-size: 12px; }
.bgr-progress-row { display: grid; gap: 8px; min-height: 64px; padding: 16px 36px; background: #fafcf7a8; border-block: 1px solid var(--frame-line); }
.bgr-progress-row p { font-size: 13px; margin: 0; }
.bgr-progress-row[data-state="error"] { color: #a42e20; }
.bgr-progress-row progress { display: block; width: 100%; height: 6px; accent-color: #e34c35; }
.bgr-controls { display: grid; grid-template-columns: minmax(300px,1.1fr) auto minmax(290px,1fr); gap: 28px; align-items: end; padding: 24px 36px; border-bottom: 1px solid var(--frame-line); }
.bgr-controls fieldset { margin: 0; border: 0; padding: 0; min-width: 0; }
.bgr-controls :is(legend,label) { font-size: 12px; font-weight: 500; color: var(--frame-muted); }
#ai-background-remover .bgr-controls label { margin: 0; display: block; text-transform: none; font-family: var(--font-ui); }
.bgr-controls legend { padding: 0 0 14px; }
.bgr-edges { display: flex; align-items: end; gap: 16px; }
.bgr-edges label { flex: 1; min-width: 0; }
.bgr-edges output { display: inline; float: right; }
#ai-background-remover input[type="range"] { display: block; width: 100%; height: 44px; margin: 0; padding: 0; box-shadow: none; border: 0; background: transparent; accent-color: #c33f2b; }
.bgr-swatches { display: flex; gap: 8px; }
.bgr-swatches label { position: relative; width: 32px; height: 44px; display: flex; align-items: center; cursor: pointer; }
#ai-background-remover .bgr-swatches label { display: flex; }
.bgr-swatches label > span:first-of-type { width: 32px; height: 32px; display: block; border: 1px solid #89968d; border-radius: 4px; }
.bgr-swatches input:checked + span { outline: 2px solid #ad3525; outline-offset: 2px; }
.bgr-swatches input:focus-visible + span { outline: 2px solid #ad3525; outline-offset: 4px; }
.bgr-white { background: #fff; }
.bgr-dark { background: #292e2b; }
.bgr-sr-only, .bgr-swatches input { position: absolute; width: 1px; height: 1px; clip-path: inset(50%); overflow: hidden; }
.bgr-export { display: flex; align-items: end; gap: 12px; min-width: 0; }
.bgr-export label { flex: 1; min-width: 0; }
#ai-background-remover .bgr-export input { display: block; width: 100%; margin: 6px 0 0; height: 44px; min-height: 44px; padding: 10px 12px; border: 1px solid #bcc1be; border-radius: 4px; color: var(--frame-ink); background: #ffffffb3; font: 13px var(--font-ui); }
#ai-background-remover .bgr-download { white-space: nowrap; }
.bgr-notes { padding: 30px 36px; background: #f7f8f4a8; }
.bgr-notes h2 { font-size: 18px; margin: 0 0 16px; }
.bgr-notes-grid { display: grid; gap: 28px; grid-template-columns: repeat(3,minmax(0,1fr)); }
.bgr-notes h3 { font-size: 13px; font-weight: 600; margin: 0 0 6px; }
.bgr-notes p { font-size: 12px; line-height: 1.8; margin: 0; color: var(--frame-muted); }
.bgr-notes .bgr-licences { font-size: 11px; margin-top: 20px; }
.bgr-notes a { text-decoration: underline; }
@media(max-width:1180px) { .bgr-controls { grid-template-columns: minmax(0,1fr) auto; } .bgr-export { grid-column: 1 / -1; } .bgr-preview { height: 310px; } }
@media(max-width:760px) { .bgr-header { align-items: start; flex-direction: column; padding: 28px 20px 22px; } .bgr-header h1 { font-size: 26px; } .bgr-toolbar { padding: 16px 20px; align-items: start; flex-direction: column; gap: 10px; } .bgr-file-meta { max-width: 100%; text-align: left; } .bgr-workspace { grid-template-columns: minmax(0,1fr); } .bgr-pane { padding: 18px 20px 20px; } .bgr-pane + .bgr-pane { border-left: 0; } .bgr-preview { height: 280px; } .bgr-progress-row { padding: 14px 20px; } .bgr-controls { padding: 24px 20px; grid-template-columns: minmax(0,1fr); gap: 18px; } .bgr-export { flex-wrap: wrap; } .bgr-export label { flex-basis: 100%; } .bgr-notes { padding: 26px 20px; } .bgr-notes-grid { grid-template-columns: minmax(0,1fr); gap: 18px; } }
@media(prefers-reduced-motion:reduce) { #ai-background-remover * { transition: none; } }