/* Background Remover v1 — AI + canvas mask editor */

.tool-block {
    padding: 0;
}

.tool-label {
    font-size: 0.8rem;
    color: var(--accent, #00d4aa);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tool-label.mono {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 0.875rem;
    font-size: 0.8rem;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    line-height: 1.2;
    background: var(--accent, #00d4aa);
    color: var(--bg-primary, #0a0e17);
    border: none;
    border-radius: var(--radius-sm, 8px);
    cursor: pointer;
    transition: opacity 0.15s ease, transform 0.15s ease;
    white-space: nowrap;
}

.tool-btn:hover:not(:disabled) {
    opacity: 0.9;
    transform: translateY(-1px);
}

.tool-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.tool-btn-secondary {
    background: transparent;
    color: var(--text-secondary, #94a3b8);
    border: 1px solid var(--border, rgba(148, 163, 184, 0.12));
}

.tool-btn-secondary:hover:not(:disabled) {
    color: var(--text-primary, #f1f5f9);
    border-color: rgba(148, 163, 184, 0.35);
}

.tool-file-btn {
    cursor: pointer;
}

.br-bar {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    padding: 0.75rem 1.1rem;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border, rgba(148, 163, 184, 0.12));
}

.br-bar-actions,
.br-bar-tools,
.br-bar-mask {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem 0.65rem;
}

.br-seg {
    display: inline-flex;
    border: 1px solid var(--border, rgba(148, 163, 184, 0.18));
    border-radius: 8px;
    overflow: hidden;
}

.br-seg-btn {
    appearance: none;
    border: none;
    background: transparent;
    color: var(--text-secondary, #94a3b8);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
    cursor: pointer;
    line-height: 1.2;
}

.br-seg-btn + .br-seg-btn {
    border-left: 1px solid var(--border, rgba(148, 163, 184, 0.14));
}

.br-seg-btn.is-active {
    background: rgba(0, 212, 170, 0.18);
    color: var(--accent, #00d4aa);
}

.br-field {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--text-secondary, #94a3b8);
    font-size: 0.75rem;
}

.br-field-label {
    font-size: 0.75rem;
    color: var(--text-muted, #64748b);
    white-space: nowrap;
}

.br-field-value {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    min-width: 1.5rem;
    color: var(--text-secondary, #94a3b8);
}

.br-field input[type="range"] {
    width: 90px;
    accent-color: var(--accent, #00d4aa);
}

.br-divider {
    width: 1px;
    height: 22px;
    background: var(--border, rgba(148, 163, 184, 0.18));
}

.br-check {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    color: var(--text-secondary, #94a3b8);
    cursor: pointer;
    user-select: none;
}

.br-check input {
    accent-color: var(--accent, #00d4aa);
}

#br-bg-color {
    width: 28px;
    height: 22px;
    padding: 0;
    border: 1px solid var(--border, rgba(148, 163, 184, 0.25));
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
}

#br-bg-color:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.br-stage {
    position: relative;
    min-height: 420px;
    background: repeating-conic-gradient(#182231 0 25%, #121a26 0 50%) 0 / 24px 24px;
    overflow: hidden;
}

.br-stage.is-drag {
    outline: 2px dashed var(--accent, #00d4aa);
    outline-offset: -2px;
}

.br-drop {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    text-align: center;
    pointer-events: none;
}

.br-drop-title {
    margin: 0;
    color: var(--text-secondary, #94a3b8);
    font-size: 1rem;
}

.br-drop-hint {
    margin: 0.45rem 0 0;
    color: var(--text-muted, #64748b);
    font-size: 0.8rem;
    max-width: 36rem;
    line-height: 1.45;
}

.br-workspace {
    position: absolute;
    inset: 0;
    overflow: hidden;
    cursor: default;
}

.br-stage[data-tool="pan"] .br-workspace,
.br-stage.is-space-pan .br-workspace,
.br-stage.is-panning .br-workspace {
    cursor: grab;
}

.br-stage.is-panning .br-workspace {
    cursor: grabbing;
}

.br-stage[data-tool="erase"] .br-workspace,
.br-stage[data-tool="restore"] .br-workspace {
    cursor: none;
}

.br-stage[data-tool="pick"] .br-workspace,
.br-stage.is-pick .br-workspace {
    cursor: crosshair;
}

.br-pick-field {
    gap: 0.4rem;
}

#br-pick-color {
    width: 28px;
    height: 22px;
    padding: 0;
    border: 1px solid var(--border, rgba(148, 163, 184, 0.25));
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
}

.br-pick-swatch {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 3px;
    border: 1px solid rgba(148, 163, 184, 0.35);
    background: #ffffff;
    opacity: 0.45;
}

.br-pick-swatch.is-set {
    opacity: 1;
    box-shadow: 0 0 0 1px rgba(0, 212, 170, 0.35);
}

.br-cursor.is-pick {
    border-color: #60a5fa;
    background: rgba(96, 165, 250, 0.15);
}

.br-viewport {
    position: absolute;
    left: 0;
    top: 0;
    transform-origin: 0 0;
    line-height: 0;
}

#br-canvas {
    display: block;
    max-width: none;
    box-shadow: 0 0 0 1px rgba(148, 163, 184, 0.12);
}

.br-cursor {
    position: absolute;
    border: 1.5px solid var(--accent, #00d4aa);
    border-radius: 50%;
    pointer-events: none;
    z-index: 5;
    box-sizing: border-box;
}

.br-cursor.is-erase {
    border-color: #f87171;
    background: rgba(248, 113, 113, 0.12);
}

.br-cursor.is-restore {
    border-color: #34d399;
    background: rgba(52, 211, 153, 0.12);
}

.br-hud {
    position: absolute;
    right: 0.75rem;
    left: auto;
    bottom: 0.75rem;
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.35rem;
    width: max-content;
    max-width: min(92vw, 16rem);
    pointer-events: none;
}

.br-zoom {
    display: inline-flex;
    flex: 0 0 auto;
    align-self: flex-end;
    width: auto;
    max-width: none;
    pointer-events: auto;
    border: 1px solid var(--border, rgba(148, 163, 184, 0.2));
    border-radius: 8px;
    overflow: hidden;
    background: rgba(10, 14, 23, 0.75);
}

.br-zoom-btn {
    appearance: none;
    border: none;
    background: transparent;
    color: var(--text-secondary, #94a3b8);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 0.8rem;
    flex: 0 0 auto;
    min-width: 2rem;
    width: 2rem;
    height: 2rem;
    padding: 0;
    cursor: pointer;
}

.br-zoom-btn:hover {
    color: var(--accent, #00d4aa);
}

.br-zoom-pct {
    flex: 0 0 auto;
    width: 3.25rem;
    min-width: 3.25rem;
    max-width: 3.25rem;
    font-variant-numeric: tabular-nums;
    border-left: 1px solid var(--border, rgba(148, 163, 184, 0.14));
    border-right: 1px solid var(--border, rgba(148, 163, 184, 0.14));
}

.br-progress {
    position: absolute;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    height: 4px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.2);
    overflow: hidden;
    z-index: 6;
}

.br-progress-bar {
    height: 100%;
    width: 35%;
    border-radius: inherit;
    background: var(--accent, #00d4aa);
    transform: translateX(-120%);
}

.br-progress-bar.is-active {
    animation: br-progress-slide 1.2s ease-in-out infinite;
}

@keyframes br-progress-slide {
    0% { transform: translateX(-120%); }
    100% { transform: translateX(320%); }
}

.tool-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--border, rgba(148, 163, 184, 0.12));
}

.tool-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted, #64748b);
    flex-shrink: 0;
}

.tool-status-text {
    font-size: 0.8rem;
    color: var(--text-muted, #64748b);
}

.tool-status[data-state="ok"] { background: rgba(0, 212, 170, 0.08); }
.tool-status[data-state="ok"] .tool-status-dot { background: var(--accent, #00d4aa); }
.tool-status[data-state="ok"] .tool-status-text { color: var(--accent, #00d4aa); }
.tool-status[data-state="error"] { background: rgba(239, 68, 68, 0.08); }
.tool-status[data-state="error"] .tool-status-dot { background: var(--danger, #ef4444); }
.tool-status[data-state="error"] .tool-status-text { color: #fca5a5; }
.tool-status[data-state="warn"] { background: rgba(245, 158, 11, 0.08); }
.tool-status[data-state="warn"] .tool-status-dot { background: #f59e0b; }
.tool-status[data-state="warn"] .tool-status-text { color: #fcd34d; }

.tool-block.image-tool.is-busy .tool-file-btn,
.tool-block.image-tool.is-busy [data-action="remove"] {
    pointer-events: none;
    opacity: 0.7;
}

@media (max-width: 720px) {
    .br-stage {
        min-height: 320px;
    }

    .br-field input[type="range"] {
        width: 70px;
    }
}