/* -------------------------------------------------------------
 * 4컷/N컷 만화 및 짤방 분리 웹 앱 - style.css
 * ------------------------------------------------------------- */

/* 변수 정의 (기본 다크 테마) */
:root[data-theme="dark"] {
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-tertiary: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent: #094B34; /* EFLIP 포레스트 그린 */
  --accent-hover: #063323;
  --accent-light: rgba(9, 75, 52, 0.2);
  --accent-icon: #10b981; /* 밝고 선명한 에메랄드 그린 */
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-light: rgba(239, 68, 68, 0.15);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-active: rgba(9, 75, 52, 0.4);
  --glow-color-1: rgba(9, 75, 52, 0.2);
  --glow-color-2: rgba(59, 130, 246, 0.15);
  --card-bg: rgba(19, 27, 46, 0.7);
  --card-blur: 16px;
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.2);
  --input-bg: #1e293b;
  --divider-color: rgba(255, 255, 255, 0.06);
}

/* 라이트 테마 변수 */
:root[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --accent: #094B34; /* EFLIP 포레스트 그린 */
  --accent-hover: #063323;
  --accent-light: rgba(9, 75, 52, 0.12);
  --accent-icon: #094B34; /* 브랜드 오리지널 포레스트 그린 */
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --danger-light: rgba(220, 38, 38, 0.08);
  --border-color: rgba(15, 23, 42, 0.08);
  --border-color-active: rgba(9, 75, 52, 0.4);
  --glow-color-1: rgba(9, 75, 52, 0.08);
  --glow-color-2: rgba(59, 130, 246, 0.06);
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-blur: 12px;
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.05);
  --input-bg: #f1f5f9;
  --divider-color: rgba(0, 0, 0, 0.06);
}

/* 기본 리셋 및 폰트 설정 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Outfit', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.5;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* 그라데이션 블러 구체 (배경 장식) */
.bg-glow {
  position: fixed;
  width: 45vw;
  height: 45vw;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.8;
  transition: all 0.5s ease;
}
.bg-glow-1 {
  top: -10%;
  left: -5%;
  background: var(--glow-color-1);
}
.bg-glow-2 {
  bottom: -10%;
  right: -5%;
  background: var(--glow-color-2);
}

/* 컨테이너 및 레이아웃 */
.app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 헤더 스타일 */
.app-header {
  display: flex;
  flex-direction: column;
  position: relative;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
  width: fit-content;
}
.logo:hover {
  opacity: 0.75;
  transform: translateY(-1px);
}
.logo-img {
  height: 2.6rem;
  width: auto;
  object-fit: contain;
}
.logo h1 {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.badge {
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--accent-light);
  color: var(--accent);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  margin-left: 0.25rem;
}
.subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 600px;
}
.theme-toggle {
  position: absolute;
  top: 0;
  right: 0;
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow);
}
.theme-toggle:hover {
  transform: rotate(15deg) scale(1.05);
  border-color: var(--accent);
}
/* 라이트/다크 아이콘 전환 */
:root[data-theme="dark"] .sun-icon { display: block; }
:root[data-theme="dark"] .moon-icon { display: none; }
:root[data-theme="light"] .sun-icon { display: none; }
:root[data-theme="light"] .moon-icon { display: block; }
.theme-toggle i,
.theme-toggle svg {
  width: 1.2rem;
  height: 1.2rem;
}

/* 공통 버튼 스타일 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.65rem 1.2rem;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.btn-lg {
  padding: 0.85rem 1.5rem;
  font-size: 1.05rem;
  font-weight: 600;
}
.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--accent-light);
}
.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background-color: var(--input-bg);
  border-color: var(--text-secondary);
}
.btn-outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-primary);
}
.btn-outline:hover {
  background-color: var(--border-color);
}
.btn-outline.danger {
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.3);
}
.btn-outline.danger:hover {
  background-color: var(--danger-light);
  border-color: var(--danger);
}
.btn-success {
  background-color: #10b981;
  color: white;
}
.btn-success:hover {
  background-color: #059669;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
  transform: translateY(-1px);
}
.w-full {
  width: 100%;
}

/* STEP 1: 업로드 존 스타일 */
.upload-section {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-grow: 1;
  padding: 2rem 0;
}
.drop-zone {
  width: 100%;
  max-width: 700px;
  background-color: var(--card-bg);
  backdrop-filter: blur(var(--card-blur));
  -webkit-backdrop-filter: blur(var(--card-blur));
  border: 2px dashed var(--border-color);
  border-radius: 20px;
  padding: 4rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow);
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background-color: rgba(16, 185, 129, 0.03);
  box-shadow: 0 20px 40px -15px var(--glow-color-1);
}
.icon-circle {
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  background-color: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
  transition: all 0.3s ease;
}
.drop-zone:hover .icon-circle {
  background-color: var(--accent-light);
  transform: scale(1.05);
}
.upload-icon {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}
.drop-zone:hover .upload-icon {
  color: var(--accent-icon);
}
.drop-zone h2 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}
.drop-zone p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}
.info-badges {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.info-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  background-color: var(--bg-tertiary);
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.info-badge i,
.info-badge svg {
  width: 0.9rem;
  height: 0.9rem;
}

/* STEP 2: 편집 워크스페이스 레이아웃 */
.editor-section {
  display: block;
}
.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 1.5rem;
  align-items: start;
}

/* 캔버스 판넬 (왼쪽) */
.canvas-panel {
  background-color: var(--card-bg);
  backdrop-filter: blur(var(--card-blur));
  -webkit-backdrop-filter: blur(var(--card-blur));
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.panel-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.panel-title i,
.panel-title svg {
  color: var(--accent-icon);
}
.panel-title h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

/* 캔버스 툴바 */
.canvas-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  background-color: var(--bg-secondary);
  padding: 0.3rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}
.tool-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.45rem 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
}
.tool-btn i,
.tool-btn svg {
  width: 0.95rem;
  height: 0.95rem;
}
.tool-btn:hover {
  color: var(--text-primary);
  background-color: var(--border-color);
}
.tool-btn.active {
  background-color: var(--accent);
  color: #ffffff;
}
.tool-btn.danger:hover {
  background-color: var(--danger);
  color: white;
}

/* 캔버스 뷰포트 및 캔버스 */
.canvas-viewport {
  background-color: #080c14; /* 캔버스 몰입감을 위해 조금 더 어두운 톤 */
  border-radius: 10px;
  border: 1px solid var(--border-color);
  min-height: 450px;
  max-height: 75vh;
  overflow: auto; /* 오버플로우 시 스크롤 */
  display: flex;
  padding: 1.5rem;
  position: relative;
}
.canvas-wrapper {
  position: relative;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  line-height: 0; /* 캔버스 하단 공백 방지 */
  user-select: none;
  margin: auto; /* 오버플로우 발생 시 상하단 짤림 없이 정상 스크롤 보장 */
}
#editorCanvas {
  max-width: 100%;
  height: auto;
  display: block;
  cursor: crosshair; /* 기본 절단선 생성 모드 */
}
/* 가이드라인 (선 마우스 호버 시) */
.guide-line {
  position: absolute;
  pointer-events: none;
  z-index: 10;
}
.guide-line.horizontal {
  left: 0;
  width: 100%;
  height: 1px;
  border-top: 1.5px dashed var(--accent);
}
.guide-line.vertical {
  top: 0;
  height: 100%;
  width: 1px;
  border-left: 1.5px dashed var(--accent);
}

.canvas-tips {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.canvas-tips i,
.canvas-tips svg {
  width: 0.95rem;
  height: 0.95rem;
  vertical-align: middle;
  margin-right: 0.15rem;
}

/* 사이드바 영역 (오른쪽) */
.sidebar-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.sidebar-card {
  background-color: var(--card-bg);
  backdrop-filter: blur(var(--card-blur));
  -webkit-backdrop-filter: blur(var(--card-blur));
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}
.card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--divider-color);
  padding-bottom: 0.5rem;
}
.card-header i,
.card-header svg {
  color: var(--accent-icon);
  width: 1.1rem;
  height: 1.1rem;
}
.card-header h4 {
  font-size: 0.95rem;
  font-weight: 700;
}

/* 그리드 프리셋 버튼 */
.preset-grid-buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.4rem;
}
.preset-grid-buttons .btn {
  padding: 0.5rem 0.25rem;
  font-size: 0.78rem;
  border-radius: 6px;
}

/* 설정 컨트롤 그룹 */
.control-group {
  margin-bottom: 1rem;
}
.label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}
.slider {
  -webkit-appearance: none;
  width: 100%;
  height: 5px;
  border-radius: 999px;
  background: var(--bg-tertiary);
  outline: none;
  transition: background 0.3s;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform 0.1s ease;
}
.slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* 배경색 감지 미리보기 박스 */
.bg-color-preview-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  margin-top: 1.2rem;
  margin-bottom: 1.2rem;
  color: var(--text-secondary);
}
.bg-color-preview {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  box-shadow: inset 0 0 4px rgba(0, 0, 0, 0.2);
}
#bgColorHex {
  font-family: monospace;
  font-weight: 600;
  color: var(--text-primary);
}

/* 액션 카드 */
.action-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* 크롭된 미리보기 목록 */
.preview-list-card {
  max-height: 400px;
  display: flex;
  flex-direction: column;
}
.preview-list-card .card-header {
  flex-shrink: 0;
}
.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(95px, 1fr));
  gap: 0.6rem;
  overflow-y: auto;
  padding-right: 0.25rem;
  flex-grow: 1;
}

/* 개별 프리뷰 이미지 컨테이너 */
.preview-item {
  position: relative;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
  transition: all 0.2s ease;
  cursor: pointer;
}
.preview-item img {
  max-width: 92%;
  max-height: 92%;
  object-fit: contain;
  border-radius: 4px;
}
.preview-item:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 6px 12px rgba(16, 185, 129, 0.2);
}
.preview-badge {
  position: absolute;
  top: 4px;
  left: 4px; /* 기본 위치 */
  background-color: rgba(15, 23, 42, 0.85);
  color: white;
  font-size: 0.65rem;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-weight: 600;
  backdrop-filter: blur(2px);
  border: 0.5px solid rgba(255, 255, 255, 0.1);
  z-index: 5;
  transition: left 0.2s ease;
}
.select-mode-active .preview-badge {
  left: 28px; /* 다중 선택 활성화 시 체크박스 영역 마련을 위해 우측 이동 */
}
.preview-dim {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(15, 23, 42, 0.7);
  color: var(--text-secondary);
  font-size: 0.6rem;
  text-align: center;
  padding: 0.15rem 0;
  backdrop-filter: blur(2px);
  transform: translateY(100%);
  transition: transform 0.2s ease;
  z-index: 5;
}
.preview-item:hover .preview-dim {
  transform: translateY(0);
}
/* 단일 다운로드 아이콘 오버레이 */
.preview-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(16, 185, 129, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 6;
}
.preview-item:hover .preview-overlay {
  opacity: 1;
}
.preview-overlay i,
.preview-overlay svg {
  color: white;
  width: 1.5rem;
  height: 1.5rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

/* 푸터 */
.app-footer {
  margin-top: auto;
  padding-top: 3rem;
  padding-bottom: 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border-top: 1px solid var(--border-color);
}
.copyright {
  font-weight: 500;
}

/* 유틸리티 */
.hidden {
  display: none !important;
}

/* 스크롤바 디자인 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* 반응형 모바일 최적화 */
@media (max-width: 992px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
  .app-container {
    padding: 1rem;
  }
  .logo h1 {
    font-size: 1.5rem;
  }
}
@media (max-width: 576px) {
  .drop-zone {
    padding: 2.5rem 1rem;
  }
  .preset-grid-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
  .panel-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .canvas-toolbar {
    width: 100%;
    justify-content: space-between;
  }
  .tool-btn span {
    display: none; /* 모바일에서 텍스트 감추고 아이콘만 표시 */
  }
}

/* 모드 선택 탭 컨테이너 */
.mode-tab-container {
  display: flex;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.25rem;
  border-radius: 8px;
  margin-bottom: 0.75rem;
  margin-top: 0.5rem;
}
.mode-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 0;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
}
.mode-tab:hover {
  color: var(--text-primary);
}
.mode-tab.active {
  background-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--accent-light);
}
.mode-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* 푸터 및 미리보기 헤더 액션 스타일 */
.preview-list-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}
.title-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-text-action {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  transition: all 0.2s ease;
}
.btn-text-action:hover {
  color: var(--accent-icon);
  background-color: var(--accent-light);
}

/* 제외된 미리보기 컷 카드 스타일 */
.preview-item.excluded {
  border-color: var(--danger-light);
  background-color: rgba(239, 68, 68, 0.02);
}
.preview-item.excluded img {
  opacity: 0.25;
  filter: grayscale(90%);
}
.preview-item.excluded::after {
  content: "제외됨";
  position: absolute;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.55);
  color: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  z-index: 8;
  pointer-events: none;
}

/* 개별 컷 우측 상단 삭제(제외) 버튼 */
.preview-delete-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 4px;
  background-color: rgba(239, 68, 68, 0.85);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  opacity: 0;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.preview-item:hover .preview-delete-btn,
.preview-item.excluded .preview-delete-btn {
  opacity: 1; /* 제외됨 상태 또는 호버 시 빨간 X 버튼 항상 노출 */
  background-color: var(--danger);
}
.preview-delete-btn:hover {
  background-color: #ef4444;
  transform: scale(1.1);
}
.preview-delete-btn i,
.preview-delete-btn svg {
  width: 0.85rem;
  height: 0.85rem;
}

/* 개별 컷 체크박스 스타일 */
.preview-checkbox {
  display: none; /* 기본 상태에서는 감춤 */
  position: absolute;
  top: 4px;
  left: 4px;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 4px;
  border: 1.5px solid var(--text-secondary);
  background-color: var(--bg-secondary);
  accent-color: var(--accent-icon);
  cursor: pointer;
  z-index: 12;
  opacity: 0.95;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.select-mode-active .preview-checkbox {
  display: block; /* 다중 선택 활성화 시 노출 */
}
.preview-item:hover .preview-checkbox,
.preview-checkbox:checked {
  opacity: 1;
  border-color: var(--accent-icon);
}
.preview-item.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}

/* 다중 선택 액션바 */
.selection-action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--accent-light);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.75rem;
  animation: slideDown 0.25s ease-out;
}
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.selection-info {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
}
.selection-buttons {
  display: flex;
  gap: 0.35rem;
}
.btn-select-action {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.btn-select-action i,
.btn-select-action svg {
  width: 0.95rem;
  height: 0.95rem;
}
.btn-select-action:hover {
  color: var(--text-primary);
  border-color: var(--accent);
  background-color: var(--accent-light);
}
.btn-select-action.danger:hover {
  color: white;
  border-color: var(--danger);
  background-color: var(--danger);
}

/* 다중 선택 버튼 활성화 스타일 */
.btn-text-action.active {
  color: white !important;
  background-color: var(--accent);
  box-shadow: 0 2px 6px var(--accent-light);
}

/* 컷 목록 하단 도움말 안내 영역 */
.preview-tips {
  margin-top: 0.8rem;
  padding: 0.55rem 0.7rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.preview-tips i,
.preview-tips svg {
  width: 0.85rem;
  height: 0.85rem;
  color: var(--text-secondary);
  flex-shrink: 0;
}

/* 구분선 색상 설정 스타일 */
.global-color-toggle {
  margin-bottom: 0.8rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--divider-color);
}
.checkbox-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  user-select: none;
}
.checkbox-container input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--accent-icon);
  cursor: pointer;
}
.color-selector-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
}
.color-selector-group:last-child {
  margin-bottom: 0;
}
.color-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.color-presets {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.color-preset-btn {
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}
.color-preset-btn:hover {
  transform: scale(1.15);
}
.color-preset-btn.active {
  border-color: var(--text-primary);
  box-shadow: 0 0 0 2px var(--accent);
  transform: scale(1.05);
}
.custom-color-wrapper {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  height: 1.5rem;
  margin-left: 0.2rem;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}
.custom-color-input {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0;
}
.custom-color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}
.custom-color-input::-webkit-color-swatch {
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  padding: 0;
}
.hex-text {
  font-family: monospace;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  user-select: all;
}

/* =============================================================
 * AI 자동 분할 카드 프리미엄 스타일 & 애니메이션
 * ============================================================= */
.ai-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.15) 0%, rgba(16, 185, 129, 0.1) 100%);
  border: 1px solid rgba(124, 58, 237, 0.3) !important;
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.15);
}
.ai-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
  pointer-events: none;
  animation: pulseGlow 8s infinite alternate;
}
@keyframes pulseGlow {
  0% { transform: translate(-10%, -10%) scale(1); }
  100% { transform: translate(10%, 10%) scale(1.1); }
}
.ai-sparkles-icon {
  color: #a855f7 !important;
  filter: drop-shadow(0 0 8px rgba(168, 85, 247, 0.6));
  animation: floatIcon 3s ease-in-out infinite;
}
@keyframes floatIcon {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}
.ai-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.95rem;
  line-height: 1.45;
}
.ai-btn {
  background: linear-gradient(135deg, #7c3aed 0%, #10b981 100%) !important;
  border: none !important;
  color: white !important;
  font-weight: 700 !important;
  letter-spacing: -0.01em;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.4);
}
.ai-btn:hover {
  background: linear-gradient(135deg, #6d28d9 0%, #059669 100%) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5);
}
.ai-btn:disabled {
  background: var(--bg-tertiary) !important;
  color: var(--text-secondary) !important;
  box-shadow: none !important;
  cursor: not-allowed;
}