/* 이미지 배경 제거 도구 스타일 - mockup-generator 디자인 언어 차용 (pink/violet 테마) */
.rmbg-tool {
    --tool-primary: #db2777;
    --tool-bg: #fdf2f8;
    --tool-gradient: linear-gradient(135deg, #db2777 0%, #7c3aed 100%);
}

/* 히어로 */
.rmbg-hero {
    background: var(--tool-gradient);
    border-radius: 16px;
    padding: 36px 32px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 28px;
}
.rmbg-hero::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
}
.rmbg-hero::after {
    content: '';
    position: absolute;
    bottom: -120px;
    left: -60px;
    width: 260px;
    height: 260px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
}
.rmbg-hero h1 {
    font-size: 28px;
    font-weight: 800;
    position: relative;
    z-index: 1;
    margin: 10px 0 6px;
}
.rmbg-hero p {
    opacity: 0.85;
    position: relative;
    z-index: 1;
    margin-bottom: 0;
}

/* 에디터 카드 */
.editor-card {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: 14px;
    overflow: hidden;
}
.editor-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid #f1f3f5;
}
.editor-title {
    font-weight: 700;
    font-size: 14px;
    color: #343a40;
}
.editor-title i {
    color: var(--tool-primary);
}
.editor-body {
    padding: 16px;
}

/* 처리 옵션 폼 */
.rmbg-tool .form-label i {
    color: var(--tool-primary);
}
.rmbg-tool .form-select:focus,
.rmbg-tool .form-control:focus {
    border-color: var(--tool-primary);
    box-shadow: 0 0 0 3px rgba(219, 39, 119, 0.12);
}
.rmbg-tool .form-check-input:checked {
    background-color: var(--tool-primary);
    border-color: var(--tool-primary);
}
.rmbg-tool .form-range::-webkit-slider-thumb { background: var(--tool-primary); }
.rmbg-tool .form-range::-moz-range-thumb { background: var(--tool-primary); }

/* 액션 버튼 */
.btn-action {
    display: inline-flex;
    align-items: center;
    padding: 9px 18px;
    border-radius: 10px;
    border: 1px solid #dee2e6;
    background: #fff;
    color: #495057;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.btn-action:hover {
    border-color: var(--tool-primary);
    color: var(--tool-primary);
    background: var(--tool-bg);
}
.btn-action-sm {
    padding: 6px 13px;
    font-size: 12.5px;
    border-radius: 8px;
}
.btn-action-primary {
    background: var(--tool-gradient);
    border: none;
    color: #fff;
}
.btn-action-primary:hover {
    background: var(--tool-gradient);
    border: none;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(219, 39, 119, 0.3);
}
.btn-action-success {
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
    border: none;
    color: #fff;
}
.btn-action-success:hover {
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
    border: none;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(22, 163, 74, 0.3);
}

/* 드래그 앤 드롭 영역 */
.drop-zone {
    border: 2px dashed #f5b8d4 !important;
    cursor: pointer;
    transition: all 0.25s;
    background: var(--tool-bg);
}
.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--tool-primary) !important;
    background: #fce7f3;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(219, 39, 119, 0.12);
}
.drop-zone .bi-cloud-arrow-up { color: var(--tool-primary) !important; }

/* 로딩 영역 */
.rmbg-tool .spinner-border { color: var(--tool-primary) !important; }
.rmbg-tool .progress-bar { background-color: var(--tool-primary); }

/* 결과 배지 */
.rmbg-tool .badge.bg-primary { background: var(--tool-gradient) !important; }

/* 결과 미리보기 - 투명 배경 체커보드 */
.rmbg-preview {
    border: 1px solid #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    min-height: 200px;
}
.rmbg-preview-checker {
    background-image: url('data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 width=%2220%22 height=%2220%22><rect width=%2210%22 height=%2210%22 fill=%22%23f0f0f0%22/><rect x=%2210%22 y=%2210%22 width=%2210%22 height=%2210%22 fill=%22%23f0f0f0%22/><rect x=%2210%22 width=%2210%22 height=%2210%22 fill=%22%23fff%22/><rect y=%2210%22 width=%2210%22 height=%2210%22 fill=%22%23fff%22/></svg>');
    background-size: 20px 20px;
}

/* 배경색 스와치 버튼 (JS가 borderColor를 직접 토글하므로 인라인 스타일 유지) */
.bg-color-btn {
    padding: 0;
    box-shadow: none;
}
.bg-color-btn:focus {
    box-shadow: 0 0 0 3px rgba(219, 39, 119, 0.18);
}

/* 서포트 카드 */
.support-card {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: 14px;
    overflow: hidden;
}
.support-card .card-hd {
    padding: 14px 18px;
    font-weight: 700;
    font-size: 15px;
    border-bottom: 1px solid #f1f3f5;
}
.support-card .card-bd {
    padding: 18px;
}
.support-subtitle {
    font-size: 15px;
    font-weight: 700;
    color: #343a40;
    margin: 18px 0 10px;
}
.support-card .use-case i { color: var(--tool-primary); }

/* 아코디언 */
.rmbg-tool .accordion-button:not(.collapsed) {
    background-color: var(--tool-bg);
    color: var(--tool-primary);
    box-shadow: none;
}
.rmbg-tool .accordion-button:focus {
    box-shadow: none;
}

/* 반응형 */
@media (max-width: 768px) {
    .rmbg-hero { padding: 28px 20px; border-radius: 12px; }
    .rmbg-hero h1 { font-size: 22px; }
}