/* === Background Remover Specific Styles === */

.br-main-interface {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* --- The All-in-One Workspace --- */
.br-workspace {
    position: relative;
    width: 100%;
    max-width: 700px;
    aspect-ratio: 4 / 3;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-lg);
    border: 2px dashed var(--border-color);
    background-color: var(--surface-bg-color);
    transition: border-color 0.2s ease, background-color 0.2s ease;
    overflow: hidden;
    /* Checkerboard background to show transparency */
    background-image:
        linear-gradient(45deg, var(--bg-deep-dark) 25%, transparent 25%),
        linear-gradient(-45deg, var(--bg-deep-dark) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--bg-deep-dark) 75%),
        linear-gradient(-45deg, transparent 75%, var(--bg-deep-dark) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.br-workspace.dragover {
    border-color: var(--accent-color);
    background-color: var(--accent-color-bg-hover);
}

/* --- Upload Label (Overlay) --- */
.br-upload-label {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    text-align: center;
    color: var(--text-secondary-color);
    z-index: 10;
    background-color: var(--surface-bg-color);
    /* Hides checkerboard initially */
    transition: opacity 0.3s ease;
}

.br-workspace.has-image .br-upload-label {
    opacity: 0;
    pointer-events: none;
}

.br-upload-icon {
    width: 60px;
    height: 60px;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.br-upload-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary-color);
}

.br-upload-hint {
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
}

/* --- Image Container --- */
.br-image-container {
    position: relative;
    display: none;
    width: 100%;
    height: 100%;
    line-height: 0;
    user-select: none;
    -webkit-user-select: none;
}

/* --- Preview Image & Result Canvas --- */
.br-image-display {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 1;
}

/* --- Status Overlay --- */
.br-status-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.6);
    color: var(--text-primary-color);
    z-index: 20;
    padding: 1rem;
    text-align: center;
    word-wrap: break-word;
    white-space: normal;
}

.br-status-overlay span {
    display: block;
    max-width: 90%;
}

.br-loader {
    display: inline-block;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: br-spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

@keyframes br-spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.br-error-message {
    color: var(--error-color);
    font-weight: 600;
}

/* --- Action Buttons --- */
.br-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
}

/* --- Quality Selector --- */
.br-quality-selector {
    display: flex;
    gap: var(--spacing-md);
    border: none;
    padding: 0;
    background-color: transparent;
    margin: 0;
}

.quality-options-group {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
}

.br-quality-selector .btn-secondary.active {
    background-color: var(--accent-color-bg-hover);
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translate(0, 0);
    box-shadow: none;
}

/* Add hover/focus/active effects to download link to match other buttons */
#br-download-btn.button:hover,
#br-download-btn.button:focus {
    transform: translate(-2px, -2px);
    box-shadow: var(--shadow-hard);
    text-decoration: none;
}

#br-download-btn.button:active {
    transform: translate(0, 0);
    box-shadow: var(--shadow-hard-inset);
}

/* --- Workspace Clear Button --- */
#br-clear-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 11;
    width: 40px;
    height: 40px;
    line-height: 1;
    padding: 0;
    font-size: 1.5rem;
}