/* PDF 딸깍 — 공통 스타일
   디자인 토큰은 md2hwpx·image-editor 와 일치 — 회색 톤 다크 테마.
   (랜딩 페이지 styles/landing.css 는 다른 톤 #0d1117, 의도된 분리) */

:root {
  --bg:           #1a1a1a;
  --panel:        #232323;
  --panel-hover:  #2a2a2a;
  --toolbar:      #2a2a2a;
  --hover:        #333;
  --border:       #383838;
  --border-strong:#484848;
  --text:         #ebebee;
  --text2:        #b0b0b7;
  --text3:        #70707a;
  --accent:       #4a9eff;
  --accent2:      #6db1ff;
  --accent-glow:  rgba(74, 158, 255, 0.15);
  --success:      #4ade80;
  --warn:         #fbbf24;
  --soon:         #70707a;

  /* PDF 딸깍 카테고리 색상 — 카테고리별 라벨에만 사용, 카드 자체는 통일 톤 */
  --cat-page:     #4a9eff;
  --cat-content:  #a78bfa;
  --cat-extract:  #4ade80;
  /* v0.5.0 — 최적화·보안 + 뷰어·비교 + AI 3 카테고리를 "기타 도구" 1개로 통합 (--cat-misc) */
  --cat-misc:     #94a3b8;
  /* legacy 토큰 (다른 곳에서 직접 참조하는 경우 호환) */
  --cat-optimize: #fbbf24;
  --cat-viewer:   #6db1ff;
  --cat-ai:       #f472b6;

  /* topbar 토큰 — 다른 앱 일치 */
  --tph: 44px;
  --r:   6px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', '맑은 고딕', sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ─────────────────────────────────────────────────
   Topbar — 다른 앱(md2hwpx·image-editor) 과 동일 패턴
   ───────────────────────────────────────────────── */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--tph);
  background: var(--toolbar);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 10px;
  z-index: 100;
  gap: 8px;
}

.tb-left, .tb-right {
  display: flex; align-items: center; gap: 5px;
  flex: 1; min-width: 0;
}
.tb-right { justify-content: flex-end; }

.home-link {
  display: flex; align-items: center; gap: 5px;
  padding: 5px 9px; border-radius: var(--r);
  color: var(--text2); text-decoration: none;
  font-size: 11px; font-weight: 600; letter-spacing: 0.02em;
  background: rgba(74, 158, 255, 0.06);
  border: 1px solid rgba(74, 158, 255, 0.18);
  transition: all 0.15s;
  white-space: nowrap; flex-shrink: 0;
}
.home-link:hover {
  background: rgba(74, 158, 255, 0.14);
  border-color: var(--accent);
  color: var(--accent2);
}

.sep {
  width: 1px; height: 18px;
  background: var(--border);
  margin: 0 2px;
  flex-shrink: 0;
}

.logo {
  display: flex; align-items: center; gap: 5px;
  color: var(--accent); font-weight: 700; font-size: 12px;
  white-space: nowrap;
}

.tbtn {
  display: flex; align-items: center; gap: 4px;
  background: none; border: none; cursor: pointer;
  color: var(--text2);
  padding: 4px 7px; border-radius: var(--r);
  font-size: 11.5px; text-decoration: none;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}
.tbtn:hover {
  background: var(--hover);
  color: var(--text);
}

.version-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(74, 158, 255, 0.1);
  border: 1px solid rgba(74, 158, 255, 0.25);
  color: var(--accent2);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* ─────────────────────────────────────────────────
   Stage / Intro
   ───────────────────────────────────────────────── */
.stage {
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--tph) + 32px) 24px 80px;
}

.intro {
  text-align: center;
  margin-bottom: 40px;
  padding: 20px 0;
}
.intro h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: 12px;
}
.intro p {
  font-size: 15px;
  color: var(--text2);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.6;
}
.intro .phase-note {
  display: inline-block;
  margin-top: 14px;
  padding: 6px 14px;
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.25);
  border-radius: 100px;
  color: var(--warn);
  font-size: 12px;
  font-weight: 600;
}

/* ─────────────────────────────────────────────────
   카테고리 섹션 (6개)
   ───────────────────────────────────────────────── */
.category {
  margin-bottom: 40px;
}

.category-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text3);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.category-label .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.category-label .label-text {
  color: var(--text2);
}
.category-label .count {
  color: var(--text3);
  font-weight: 500;
  font-size: 11px;
}
.category-label .line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border) 0%, transparent 100%);
}

/* 카테고리별 dot 색상 */
.category[data-cat="page"] .dot { background: var(--cat-page); }
.category[data-cat="content"] .dot { background: var(--cat-content); }
.category[data-cat="extract"] .dot { background: var(--cat-extract); }
.category[data-cat="misc"] .dot { background: var(--cat-misc); }
/* legacy — 도구 내부 페이지의 헤더 색상이 이 셀렉터를 직접 참조하는 경우 호환 */
.category[data-cat="optimize"] .dot { background: var(--cat-optimize); }
.category[data-cat="viewer"] .dot { background: var(--cat-viewer); }
.category[data-cat="ai"] .dot { background: var(--cat-ai); }

/* ─────────────────────────────────────────────────
   Tools grid — 컴팩트 카드 (22개 노출)
   ───────────────────────────────────────────────── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all 0.18s;
  position: relative;
  min-height: 110px;
}

.tool-card.live {
  cursor: pointer;
}
.tool-card.live:hover {
  background: var(--panel-hover);
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.tool-card.soon {
  cursor: not-allowed;
  opacity: 0.55;
}
.tool-card.soon:hover {
  border-color: var(--border);
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 158, 255, 0.08);
  border-radius: 8px;
  color: var(--accent);
}
.card-icon svg { width: 18px; height: 18px; }

.tool-card.soon .card-icon {
  background: rgba(139, 148, 158, 0.08);
  color: var(--soon);
}

.badge {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 100px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-live {
  background: rgba(74, 222, 128, 0.12);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.3);
}
.badge-soon {
  background: rgba(139, 148, 158, 0.12);
  color: var(--soon);
  border: 1px solid rgba(139, 148, 158, 0.25);
}

.card-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}
.tool-card.soon .card-name { color: var(--text2); }

.card-desc {
  font-size: 12px;
  color: var(--text3);
  line-height: 1.45;
  flex: 1;
}

/* ─────────────────────────────────────────────────
   Footer
   ───────────────────────────────────────────────── */
.site-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  text-align: center;
  font-size: 12px;
  color: var(--text3);
  border-top: 1px solid var(--border);
}
.site-footer a {
  color: var(--text2);
  transition: color 0.15s;
}
.site-footer a:hover {
  color: var(--accent2);
}

/* ─────────────────────────────────────────────────
   도구 페이지 공통 레이아웃 (.tool-stage)
   — 각 tools/<name>/index.html 이 사용
   ───────────────────────────────────────────────── */
.tool-stage {
  max-width: 1200px;  /* 사이드바 도구 미리보기 + 옵션 균형 (v0.2.11 — 1400 → 1200) */
  margin: 0 auto;
  padding: calc(var(--tph) + 28px) 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tool-header { display: flex; flex-direction: column; gap: 8px; }

.tool-back {
  color: var(--text2);
  font-size: 12px;
  text-decoration: none;
  align-self: flex-start;
  padding: 4px 0;
  transition: color 0.12s;
}
.tool-back:hover { color: var(--accent2); }

.tool-title-row { display: flex; align-items: center; gap: 10px; }
.tool-cat-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.tool-cat-dot[data-cat="page"]     { background: var(--cat-page); }
.tool-cat-dot[data-cat="content"]  { background: var(--cat-content); }
.tool-cat-dot[data-cat="extract"]  { background: var(--cat-extract); }
.tool-cat-dot[data-cat="misc"]     { background: var(--cat-misc); }
/* legacy — 신규 도구는 misc 사용. 기존 도구 페이지 dot 호환 */
.tool-cat-dot[data-cat="optimize"] { background: var(--cat-optimize); }
.tool-cat-dot[data-cat="viewer"]   { background: var(--cat-viewer); }
.tool-cat-dot[data-cat="ai"]       { background: var(--cat-ai); }

.tool-title-row h1 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.01em;
  margin: 0;
}

.tool-desc {
  color: var(--text2);
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
}

.tool-body { display: flex; flex-direction: column; gap: 14px; }

.file-summary { color: var(--text3); font-size: 12px; padding: 2px 4px; }

/* ─── v0.4.1 PDF 비교 도구 — 좌우 PDF 입력 + 결과 페이지 카드 ───────── */
.cmp-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.cmp-side {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cmp-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text1);
  padding: 0 4px;
}
.cmp-info {
  font-size: 12px;
  color: var(--text3);
  padding: 0 4px;
  min-height: 16px;
}
@media (max-width: 800px) {
  .cmp-pair { grid-template-columns: 1fr; }
}

/* v0.4.2 — 결과 영역 다크 테마 가시성 ─────────────────────────────────── */
.cmp-summary {
  padding: 12px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  margin-bottom: 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text);
}
.cmp-summary .label {
  color: var(--text2);
}
.cmp-summary .pill-ins,
.cmp-summary .pill-del {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 4px;
  font-weight: 700;
  margin: 0 2px;
}
.cmp-summary .pill-ins {
  background: rgba(74, 222, 128, 0.18);
  color: #6ee7a0;
}
.cmp-summary .pill-del {
  background: rgba(248, 113, 113, 0.18);
  color: #fca5a5;
}
.cmp-summary .warn-note {
  display: block;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed var(--border);
  color: var(--warn);
}

.cmp-page {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 10px;
  background: var(--panel);
  overflow: hidden;
}
.cmp-page > summary {
  padding: 9px 14px;
  cursor: pointer;
  background: var(--panel-hover);
  color: var(--text);
  font-weight: 600;
  user-select: none;
  list-style: none;
}
.cmp-page > summary::-webkit-details-marker { display: none; }
.cmp-page > summary::before {
  content: '▶';
  display: inline-block;
  margin-right: 8px;
  color: var(--text3);
  font-size: 11px;
  transition: transform 0.15s;
}
.cmp-page[open] > summary::before { transform: rotate(90deg); }
.cmp-page .page-stat {
  margin-left: 10px;
  font-size: 12px;
  font-weight: 400;
  color: var(--text2);
}
.cmp-page .page-body {
  padding: 14px;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.75;
  white-space: pre-wrap;
  word-break: break-word;
  border-top: 1px solid var(--border);
}

.cmp-page-nochange {
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--text3);
}
.cmp-page-nochange strong { color: var(--text2); margin-right: 6px; }

/* diff 색 — 다크 배경 위 가독성 우선 (옅은 배경 + 진한 텍스트 색) */
.cmp-diff-ins {
  background: rgba(74, 222, 128, 0.22);
  color: #b6f0c8;
  text-decoration: none;
  padding: 1px 2px;
  border-radius: 2px;
}
.cmp-diff-del {
  background: rgba(248, 113, 113, 0.22);
  color: #fec5c5;
  text-decoration: line-through;
  padding: 1px 2px;
  border-radius: 2px;
}

.cmp-empty-msg {
  padding: 22px;
  text-align: center;
  color: var(--success);
  font-size: 14px;
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: 8px;
}

/* v0.4.3 — 비교 범위 한정 안내 (텍스트만 비교) */
.cmp-scope-note {
  margin: -4px 0 8px;
  padding: 12px 14px;
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.35);
  border-left: 3px solid var(--warn);
  border-radius: 6px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text);
}
.cmp-scope-note strong { color: var(--warn); }
.cmp-scope-note ul {
  margin: 6px 0 6px 18px;
  padding: 0;
  color: var(--text2);
}
.cmp-scope-note ul li { margin: 2px 0; }
.cmp-scope-note ul strong { color: var(--text); }

/* v0.5.4 — 온톨로지 요약 결과 첫 줄 도메인 chip */
.ontology-chip {
  display: inline-block;
  padding: 6px 12px;
  margin: -2px 0 12px;
  background: rgba(167, 139, 250, 0.18);
  border: 1px solid rgba(167, 139, 250, 0.4);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: #c4b5fd;
  white-space: pre-wrap;
  word-break: keep-all;
  line-height: 1.5;
}

/* v0.5.6 — 논리 흐름 Mermaid 다이어그램 영역 */
.mermaid-wrap {
  margin: 6px 0 18px;
  padding: 14px 16px 18px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(167, 139, 250, 0.06));
  border: 1px solid rgba(96, 165, 250, 0.28);
  border-radius: 10px;
  overflow-x: auto;
}
.mermaid-title {
  font-size: 12px;
  font-weight: 700;
  color: #93c5fd;
  margin-bottom: 8px;
  letter-spacing: 0.02em;
  text-transform: none;
}
.mermaid-wrap .mermaid {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60px;
  text-align: center;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', sans-serif;
}
.mermaid-wrap .mermaid svg {
  max-width: 100%;
  height: auto !important;
}
/* mermaid 가 직접 박는 색이 다크 톤에 안 어울리는 케이스 보정 */
.mermaid-wrap .mermaid .nodeLabel,
.mermaid-wrap .mermaid .edgeLabel {
  color: #f1f5f9 !important;
}
.mermaid-wrap .mermaid .edgeLabel {
  background: rgba(30, 41, 59, 0.85) !important;
  padding: 2px 6px;
  border-radius: 4px;
}

.tool-actions {
  display: flex; justify-content: flex-end; gap: 10px;
  padding-top: 8px;
}

.btn-primary, .btn-secondary {
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent2);
  border-color: var(--accent2);
}
.btn-primary:disabled, .btn-secondary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn-secondary {
  background: transparent;
  color: var(--text2);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--panel-hover);
  color: var(--text);
  border-color: var(--border-strong);
}

/* ─────────────────────────────────────────────────
   도구 공통 폼 요소 (fieldset · form-row · collapsible · info bar)
   — 분할 도구부터 사용, 다른 도구도 재사용
   ───────────────────────────────────────────────── */

/* 모드 선택 fieldset (라디오 그룹) */
.split-mode {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.split-mode legend {
  padding: 0 6px;
  color: var(--text2);
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
}
.split-mode label {
  display: flex; align-items: center; gap: 8px;
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 6px;
  transition: background 0.12s;
}
.split-mode label:hover { background: var(--panel-hover); }
.split-mode label small {
  color: var(--text3); font-size: 11px; margin-left: auto;
}
.split-mode input[type=radio] {
  accent-color: var(--accent);
  cursor: pointer;
  margin: 0;
}

/* 단일 폼 행 (label + input) */
.form-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  cursor: default;
}
.form-row span { color: var(--text2); flex: 1; }
.form-row input[type=number],
.form-row input[type=text] {
  width: 100px;
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
}
.form-row input[type=number]:focus,
.form-row input[type=text]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.15);
}
.form-row select {
  min-width: 200px;
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
}
.form-row select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.15);
}

/* ─────────────────────────────────────────────────
   사이드바 레이아웃 (회전·자르기 등 — 좌:미리보기 / 우:옵션)
   ───────────────────────────────────────────────── */
.tool-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 20px;
  align-items: stretch;  /* ★ .tool-main 이 사이드바 만큼 stretch → 안에서 sticky scroll 가능 */
}
.tool-main {
  display: flex; flex-direction: column; gap: 14px; min-width: 0;
  align-items: flex-start;  /* 자녀 (.wm-preview 등) stretch 방지 */
}
.tool-sidebar {
  /* sticky 제거 — 사이드바 옵션 길어지면 자연스럽게 길어지고,
     미리보기 (.wm-preview 등) 만 sticky 로 따라옴 */
  align-self: start;  /* 사이드바는 자기 자연 높이만 — 빈공간 stretch X */
  display: flex; flex-direction: column; gap: 14px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
/* 사이드바 자체를 sticky 로 (멀티페이지 뷰어 패턴 — add-text 등) */
.tool-sidebar.sidebar-sticky {
  position: sticky;
  top: calc(var(--tph) + 16px);
  max-height: calc(100vh - var(--tph) - 32px);
  overflow-y: auto;
}
/* 사이드바 안 액션 그룹 — 적용/초기화 버튼 강조 (도구 바로 아래 위치) */
.tool-sidebar .sidebar-action-group {
  padding: 12px;
  background: rgba(74, 158, 255, 0.06);
  border: 1px solid rgba(74, 158, 255, 0.22);
  border-radius: 8px;
  margin: -4px 0 0;
}
.tool-sidebar .sidebar-action-group .btn-primary,
.tool-sidebar .sidebar-action-group .btn-secondary {
  border-radius: 6px;
  font-weight: 700;
}
.tool-sidebar h3 {
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text2);
  margin: 0;
}
.tool-sidebar .sidebar-group {
  display: flex; flex-direction: column; gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.tool-sidebar .sidebar-group:last-child { border-bottom: none; padding-bottom: 0; }

/* 전체 선택 토글 체크박스 */
.select-all-row {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}
.select-all-row input { accent-color: var(--accent); cursor: pointer; margin: 0; }
.select-all-row .select-count {
  margin-left: auto;
  color: var(--text3);
  font-size: 11px;
  font-weight: 600;
}

/* 회전 도구 — 5개 아이콘 버튼 그리드 */
.rotate-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}
.rotate-btn {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 12px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--text2);
  transition: all 0.15s;
  font-family: inherit;
}
.rotate-btn:hover {
  background: var(--panel-hover);
  border-color: var(--border-strong);
  color: var(--text);
}
.rotate-btn.active {
  background: rgba(74, 158, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent2);
}
.rotate-btn svg { width: 22px; height: 22px; }
.rotate-btn .rotate-label { font-size: 11px; font-weight: 600; }

@media (max-width: 768px) {
  .tool-with-sidebar { grid-template-columns: 1fr; }
  .tool-sidebar { position: static; }
}

/* 자르기 도구 — canvas + 드래그 오버레이 */
.crop-controls {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
}
.crop-hint {
  color: var(--text3); font-size: 12px;
  margin-left: 6px;
}
.crop-canvas-wrap {
  position: relative;
  display: inline-block;
  align-self: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  max-width: 100%;
}
.crop-canvas-wrap canvas {
  display: block;
  cursor: crosshair;
  user-select: none;
}
.crop-overlay {
  position: absolute;
  display: none;
  border: 2px solid var(--accent);
  background: rgba(74, 158, 255, 0.12);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}
/* corner resize handle — 이미지 에디터 패턴 */
.crop-handle {
  position: absolute;
  width: 12px; height: 12px;
  background: var(--accent);
  border: 2px solid #fff;
  border-radius: 2px;
  pointer-events: none; /* canvas 가 hit test 처리 */
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.4);
}
.crop-handle.nw { top: -7px; left: -7px; }
.crop-handle.ne { top: -7px; right: -7px; }
.crop-handle.sw { bottom: -7px; left: -7px; }
.crop-handle.se { bottom: -7px; right: -7px; }

/* 워터마크 (텍스트) — 미리보기 + 결과 카드를 한 wrapper 로 sticky */
.wm-sticky-group {
  position: sticky;
  top: calc(var(--tph) + 16px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-self: flex-start;
  z-index: 5;
}
.wm-preview {
  position: relative;
  display: inline-block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  max-width: 100%;
}
.wm-preview canvas {
  display: block;
  background: #fff;
}
.wm-overlay {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  font-weight: bold;
  pointer-events: auto;   /* 드래그 가능 */
  cursor: move;
  user-select: none;
  white-space: nowrap;
  transition: opacity 0.12s, color 0.12s;
}
.wm-overlay:active { cursor: grabbing; }

/* 워터마크 위치 9분할 quick buttons */
.wm-pos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.wm-pos-btn {
  display: flex; align-items: center; justify-content: center;
  height: 32px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text2);
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.12s;
}
.wm-pos-btn:hover {
  background: var(--panel-hover);
  border-color: var(--border-strong);
  color: var(--text);
}
.wm-pos-btn.active {
  background: rgba(74, 158, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent2);
}

/* 워터마크 회전 각도 9방향 grid (8 프리셋 + 중앙 자유 입력) */
.wm-rot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.wm-rot-btn {
  display: flex; align-items: center; justify-content: center;
  height: 32px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text2);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.12s;
}
.wm-rot-btn:hover {
  background: var(--panel-hover);
  border-color: var(--border-strong);
  color: var(--text);
}
.wm-rot-btn.active {
  background: rgba(74, 158, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent2);
}
.wm-rot-input {
  height: 32px;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  font-family: inherit;
  padding: 0 4px;
  width: 100%;
  min-width: 0;
}
.wm-rot-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(74, 158, 255, 0.15);
}

/* 워터마크 이미지 선택 영역 */
.wm-img-input {
  display: flex; flex-direction: column; gap: 8px;
}
.wm-img-pick {
  padding: 10px 12px;
  background: var(--bg);
  border: 1px dashed var(--border-strong);
  border-radius: 6px;
  color: var(--text2);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  text-align: center;
  transition: all 0.12s;
}
.wm-img-pick:hover {
  background: var(--panel-hover);
  border-color: var(--accent);
  color: var(--text);
}
.wm-img-info {
  font-size: 11px;
  color: var(--text3);
  text-align: center;
  word-break: break-all;
}
.wm-img-thumb {
  max-width: 100%;
  max-height: 80px;
  align-self: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px;
}

/* ─────────────────────────────────────────────────
   텍스트 추가 도구 — 멀티페이지 풀 에디터 (v0.2.14)
   - 모든 페이지 vertical stack
   - 페이지마다 독립 박스 추가 가능
   - 박스: 드래그·리사이즈·회전·정렬·박스별 스타일·배경색
   ───────────────────────────────────────────────── */
.ta-pages-container {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
}
.ta-page-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}
.ta-page-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text2);
  padding: 0 2px;
}
.ta-page-canvas {
  display: block;
  background: #fff;
  border-radius: 4px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
.ta-canvas-wrap {
  position: relative;
  cursor: crosshair;
  display: inline-block;
}
.ta-box {
  position: absolute;
  background: rgba(255, 255, 255, 0.55);
  border: 1.5px dashed rgba(74, 158, 255, 0.5);
  border-radius: 2px;
  cursor: move;
  user-select: none;
  z-index: 10;
  box-sizing: border-box;
  transform-origin: center center;
}
.ta-box:hover {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.7);
}
.ta-box.selected {
  border-style: solid;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.8);
  z-index: 20;
}
.ta-box.dragging,
.ta-box.resizing,
.ta-box.rotating {
  border-color: var(--accent2);
  background: rgba(255, 255, 255, 0.85);
}
.ta-box .ta-text {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: inherit;
  padding: 2px 4px;
  font-family: 'Nanum Gothic', '나눔고딕', '맑은 고딕', sans-serif;
  cursor: text;
  box-sizing: border-box;
}
.ta-box .ta-text::placeholder { color: rgba(0,0,0,0.3); font-style: italic; }

/* 리사이즈 핸들 8개 (선택 시만 표시)
   ★ v0.2.17 — .ta-box 부모 종속 X (서명 .sg-box 도 reuse 위해) */
.ta-handle {
  position: absolute;
  width: 10px; height: 10px;
  background: var(--accent);
  border: 1.5px solid #fff;
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  display: none;
  z-index: 21;
}
.ta-box.selected .ta-handle,
.sg-box.selected .ta-handle { display: block; }
.ta-h-nw { top: -6px; left: -6px; cursor: nw-resize; }
.ta-h-n  { top: -6px; left: 50%; margin-left: -5px; cursor: n-resize; }
.ta-h-ne { top: -6px; right: -6px; cursor: ne-resize; }
.ta-h-e  { top: 50%; right: -6px; margin-top: -5px; cursor: e-resize; }
.ta-h-se { bottom: -6px; right: -6px; cursor: se-resize; }
.ta-h-s  { bottom: -6px; left: 50%; margin-left: -5px; cursor: s-resize; }
.ta-h-sw { bottom: -6px; left: -6px; cursor: sw-resize; }
.ta-h-w  { top: 50%; left: -6px; margin-top: -5px; cursor: w-resize; }

/* 회전 핸들 — 박스 위 동그라미 (.ta-box, .sg-box 공통) */
.ta-rot-handle {
  position: absolute;
  top: -34px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--accent);
  border: 1.5px solid #fff;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  cursor: grab;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
  z-index: 21;
}
.ta-rot-handle::before {
  content: '';
  position: absolute;
  top: 22px;
  left: 50%;
  width: 1px; height: 12px;
  background: var(--accent);
  transform: translateX(-50%);
}
.ta-box.selected .ta-rot-handle,
.sg-box.selected .ta-rot-handle { display: flex; }
.ta-rot-handle:active { cursor: grabbing; }

/* 정렬 버튼 그리드 (3개) */
.ta-align-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.ta-align-btn {
  display: flex; align-items: center; justify-content: center;
  height: 32px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text2);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.12s;
}
.ta-align-btn:hover {
  background: var(--panel-hover);
  border-color: var(--border-strong);
  color: var(--text);
}
.ta-align-btn.active {
  background: rgba(74, 158, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent2);
}

/* 박스 목록 항목 (선택 가능) */
.ta-list-item {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.12s;
}
.ta-list-item:hover {
  background: var(--panel-hover);
  border-color: var(--border-strong);
}
.ta-list-item.selected {
  background: rgba(74, 158, 255, 0.12);
  border-color: var(--accent);
}
.ta-list-num {
  color: var(--accent2); font-weight: 700; font-size: 11px;
  flex-shrink: 0; min-width: 18px;
}
/* 서명 목록 항목의 미니 미리보기 */
.ta-list-sig {
  width: 60px; height: 24px;
  object-fit: contain;
  background: #fff;
  border-radius: 3px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.ta-list-page {
  font-size: 10px; font-weight: 600;
  color: var(--text3);
  padding: 1px 5px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  flex-shrink: 0;
}
.ta-list-text {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--text);
}
.ta-list-del {
  background: transparent; border: none; cursor: pointer;
  color: var(--text3); font-size: 11px;
  padding: 2px 5px; border-radius: 3px;
  transition: all 0.12s;
}
.ta-list-del:hover { background: rgba(248, 113, 113, 0.15); color: #f87171; }

/* ─────────────────────────────────────────────────
   서명 도구 (v0.2.16) — Phase 2 #6
   - 박스 패턴은 .ta-handle / .ta-rot-handle reuse
   - 박스 자체는 .sg-box, 내부 이미지 .sg-img
   - 모달 .sig-modal (그리기 + 업로드)
   ───────────────────────────────────────────────── */
.sg-box {
  position: absolute;
  border: 1.5px dashed rgba(74, 158, 255, 0.5);
  background: transparent;
  cursor: move;
  user-select: none;
  z-index: 10;
  box-sizing: border-box;
  transform-origin: center center;
}
.sg-box:hover { border-color: var(--accent); }
.sg-box.selected {
  border-style: solid;
  border-color: var(--accent);
  z-index: 20;
}
.sg-box.dragging, .sg-box.resizing, .sg-box.rotating { border-color: var(--accent2); }
.sg-img {
  display: block;
  width: 100%; height: 100%;
  object-fit: fill;
  pointer-events: none;
  -webkit-user-drag: none;
}

/* 모달 */
.sig-modal {
  position: fixed; inset: 0;
  display: none;
  align-items: center; justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1500;
}
.sig-modal.open { display: flex; }
.sig-modal-panel {
  display: flex; flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  width: 760px;
  max-width: calc(100vw - 32px);
  max-height: calc(100vh - 60px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}
.sig-modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--toolbar);
}
.sig-modal-close {
  background: transparent; border: none; cursor: pointer;
  color: var(--text2); font-size: 18px;
  padding: 4px 10px; border-radius: 4px;
  transition: all 0.12s;
}
.sig-modal-close:hover { background: var(--hover); color: var(--text); }

.sig-tab-bar {
  display: flex; gap: 4px;
  padding: 12px 16px 0;
  border-bottom: 1px solid var(--border);
}
.sig-tab-btn {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  color: var(--text2);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  border-radius: 4px 4px 0 0;
  transition: all 0.12s;
  margin-bottom: -1px;
}
.sig-tab-btn:hover { color: var(--text); background: var(--hover); }
.sig-tab-btn.active {
  color: var(--accent2);
  border-bottom-color: var(--accent);
  background: rgba(74, 158, 255, 0.08);
}

.sig-tab-panel {
  display: none;
  padding: 16px;
  flex: 1;
  min-height: 0;
  overflow: auto;
}
.sig-tab-panel.active { display: block; }

.sig-draw-toolbar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 4px;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 10px;
}
.sig-color-btn {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  transition: all 0.12s;
}
.sig-color-btn:hover { transform: scale(1.1); }
.sig-color-btn.active {
  border-color: #fff;
  box-shadow: 0 0 0 2px var(--accent);
}
.sig-width-btn {
  padding: 4px 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text2);
  font-size: 11px; font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.12s;
}
.sig-width-btn:hover { background: var(--panel-hover); color: var(--text); }
.sig-width-btn.active {
  background: rgba(74, 158, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent2);
}

.sig-draw-canvas {
  display: block;
  width: 100%;
  max-width: 700px;
  height: 280px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  cursor: crosshair;
  touch-action: none;
  box-shadow: inset 0 1px 4px rgba(0,0,0,0.06);
}

.sig-upload-pick {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  padding: 32px 20px;
  background: var(--bg);
  border: 2px dashed var(--border-strong);
  border-radius: 8px;
  color: var(--text2);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.sig-upload-pick:hover {
  background: var(--panel-hover);
  border-color: var(--accent);
  color: var(--text);
}
.sig-upload-preview-box {
  display: flex; align-items: center; justify-content: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  margin-top: 12px;
  min-height: 60px;
}
.sig-upload-preview-box img { max-width: 100%; max-height: 240px; object-fit: contain; }

.sig-modal-foot {
  display: flex; align-items: center; justify-content: flex-end; gap: 10px;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  background: var(--toolbar);
}

/* 머리글·바닥글 overlay (canvas 위 6개 텍스트 — 좌/중/우 × 머리/바닥) */
.hf-overlay {
  position: absolute;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  font-weight: 400;
  line-height: 1;
}

/* 워터마크 이미지 overlay (canvas 위 img) */
.wm-img-overlay {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) rotate(0deg);
  pointer-events: auto;
  cursor: move;
  user-select: none;
  -webkit-user-drag: none;
  max-width: 100%;
  max-height: 100%;
  transition: opacity 0.12s;
}
.wm-img-overlay:active { cursor: grabbing; }

/* 텍스트 추출 등의 텍스트 미리보기 박스 */
.text-preview {
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text2);
  font-size: 12px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 240px;
  overflow-y: auto;
  font-family: ui-monospace, 'Cascadia Code', 'Menlo', 'Consolas', monospace;
  margin: 0;
}

/* 로딩된 파일 정보 바 */
.loaded-info {
  padding: 10px 14px;
  background: rgba(74, 158, 255, 0.06);
  border: 1px solid rgba(74, 158, 255, 0.18);
  border-radius: 8px;
  color: var(--text);
  font-size: 13px;
}
.loaded-info strong { color: var(--accent2); font-weight: 700; }

/* 결과 미리보기 한 줄 */
.result-preview {
  padding: 10px 14px;
  color: var(--accent2);
  font-size: 13px; font-weight: 600;
  background: rgba(74, 158, 255, 0.04);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
}

/* details/summary 접힘 패턴 (썸네일 미리보기 등) */
.thumb-collapsible summary {
  cursor: pointer;
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 13px; font-weight: 600;
  list-style: none;
  display: flex; align-items: center; gap: 8px;
  transition: background 0.12s;
}
.thumb-collapsible summary::-webkit-details-marker { display: none; }
.thumb-collapsible summary::before {
  content: '▶';
  font-size: 9px; color: var(--text3);
  transition: transform 0.15s;
}
.thumb-collapsible[open] summary::before { transform: rotate(90deg); }
.thumb-collapsible summary:hover { background: var(--panel-hover); }
.thumb-collapsible > .thumb-grid,
.thumb-collapsible > div {
  margin-top: 12px;
  max-height: 480px;
  overflow-y: auto;
  padding: 4px 4px 8px;
}

/* ─────────────────────────────────────────────────
   shared/file-input.js — 드롭 zone
   ───────────────────────────────────────────────── */
.fi-zone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  padding: 32px 20px;
  background: var(--panel);
  border: 2px dashed var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.18s;
  min-height: 160px;
}
.fi-zone:hover {
  background: var(--panel-hover);
  border-color: var(--accent);
}
.fi-zone.fi-dragover {
  background: rgba(74, 158, 255, 0.08);
  border-color: var(--accent);
  border-style: solid;
}
.fi-icon { font-size: 32px; opacity: 0.8; }
.fi-text { color: var(--text2); font-size: 14px; text-align: center; }
.fi-hidden { display: none; }

/* ─────────────────────────────────────────────────
   shared/file-input.js — 다중 파일 정렬 리스트
   ───────────────────────────────────────────────── */
.sf-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 6px;
}
.sf-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  transition: background 0.12s;
}
.sf-item:hover { background: var(--panel-hover); }
.sf-handle {
  color: var(--text3); cursor: grab; user-select: none;
  font-size: 14px;
}
.sf-handle:active { cursor: grabbing; }
.sf-num {
  min-width: 24px; text-align: center;
  color: var(--accent2); font-weight: 700; font-size: 12px;
}
.sf-name {
  flex: 1; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--text);
}
.sf-size { color: var(--text3); font-size: 11px; }
.sf-remove {
  background: transparent; border: none; cursor: pointer;
  color: var(--text3); font-size: 14px; padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.12s;
}
.sf-remove:hover { background: rgba(248, 113, 113, 0.15); color: #f87171; }

/* ─────────────────────────────────────────────────
   shared/thumbnail.js — 페이지 썸네일 그리드
   ───────────────────────────────────────────────── */
.thumb-grid {
  display: grid;
  /* ★ v0.3.4 — minmax 의 min 을 CSS var 로 → 줌 가능 (thumb-toolbar 에서 제어) */
  grid-template-columns: repeat(auto-fill, minmax(var(--thumb-w, 150px), 1fr));
  gap: 12px;
  padding: 12px 0;
  width: 100%;          /* v0.3.2 — .tool-main align-items:flex-start 영향 회피 */
  align-self: stretch;
}
.thumb-item {
  display: flex; flex-direction: column; gap: 6px;
  padding: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: default;
  transition: all 0.15s;
}
.thumb-grid.thumb-selectable .thumb-item { cursor: pointer; }
.thumb-grid.thumb-selectable .thumb-item:hover {
  background: var(--panel-hover);
  border-color: var(--border-strong);
}
.thumb-item.thumb-selected {
  background: rgba(74, 158, 255, 0.08);
  border-color: var(--accent);
}
/* ★ selected 상태가 hover specificity 에 밀려 border 가 회색으로 바뀌는 버그 fix
   selected + hover 시 accent border 유지 + 배경만 살짝 더 진하게 */
.thumb-grid.thumb-selectable .thumb-item.thumb-selected,
.thumb-grid.thumb-selectable .thumb-item.thumb-selected:hover {
  border-color: var(--accent);
}
.thumb-grid.thumb-selectable .thumb-item.thumb-selected:hover {
  background: rgba(74, 158, 255, 0.15);
}
/* 드래그 재정렬 시 placeholder (drop target) 강조 */
.thumb-grid .thumb-item.thumb-drop-target {
  background: rgba(74, 158, 255, 0.18);
  border: 2px dashed var(--accent2);
  box-shadow: 0 0 12px rgba(74, 158, 255, 0.35);
}
.thumb-grid .thumb-item.thumb-dragging {
  opacity: 0.4;
}
.thumb-item.thumb-error {
  background: rgba(248, 113, 113, 0.08);
  border-color: #f87171;
}
.thumb-canvas-wrap {
  display: flex; align-items: center; justify-content: center;
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  min-height: 80px;
}
.thumb-canvas-wrap canvas {
  display: block; max-width: 100%; height: auto;
}
.thumb-meta {
  display: flex; align-items: center; justify-content: space-between; gap: 6px;
  font-size: 11px;
  color: var(--text3);
}
.thumb-check { cursor: pointer; accent-color: var(--accent); }
.thumb-page { font-weight: 600; }

/* ─────────────────────────────────────────────────
   shared/thumb-toolbar.js — 썸네일/그리드 공용 toolbar (v0.3.4)
   - 줌 (slider + ± 버튼) + 정렬 dropdown + 뷰 모드 (그리드/리스트)
   ───────────────────────────────────────────────── */
.thumb-toolbar {
  display: flex; align-items: center; gap: 12px;
  padding: 6px 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  flex-wrap: wrap;
  font-size: 12px;
  align-self: stretch;
}
.thumb-toolbar .tt-label { color: var(--text2); font-weight: 600; margin-right: 4px; }

/* 보기 모드 토글 (그리드/리스트) */
.thumb-toolbar .tt-viewmode {
  display: flex; gap: 2px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px;
}
.thumb-toolbar .tt-vm-btn {
  padding: 4px 10px;
  background: transparent;
  border: none;
  color: var(--text2);
  font-size: 14px;
  cursor: pointer;
  border-radius: 3px;
  font-family: inherit;
  line-height: 1;
}
.thumb-toolbar .tt-vm-btn:hover { background: var(--hover); color: var(--text); }
.thumb-toolbar .tt-vm-btn.active {
  background: rgba(74, 158, 255, 0.18);
  color: var(--accent2);
}

/* 정렬 dropdown */
.thumb-toolbar .tt-sort {
  padding: 4px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
}
.thumb-toolbar .tt-sort:focus { outline: none; border-color: var(--accent); }

/* 줌 컨트롤 */
.thumb-toolbar .tt-zoom {
  display: flex; align-items: center; gap: 4px;
  margin-left: auto;          /* 오른쪽 끝 */
}
.thumb-toolbar .tt-zoom-slider {
  width: 100px;
  accent-color: var(--accent);
}
.thumb-toolbar .tt-zoom-btn {
  width: 24px; height: 24px;
  padding: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
.thumb-toolbar .tt-zoom-btn:hover { background: var(--panel-hover); border-color: var(--accent); }

/* ─────────────────────────────────────────────────
   from-image 자체 그리드 (.fg-grid) — 이미지 파일 미리보기
   ───────────────────────────────────────────────── */
.fg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--thumb-w, 180px), 1fr));
  gap: 12px;
  padding: 12px 0;
  width: 100%;
  align-self: stretch;
}
.fg-item {
  position: relative;
  display: flex; flex-direction: column; gap: 6px;
  padding: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: grab;
  transition: all 0.15s;
}
.fg-item:hover { background: var(--panel-hover); border-color: var(--border-strong); }
.fg-item.fg-dragging { opacity: 0.4; }
.fg-item.fg-drop-target {
  background: rgba(74, 158, 255, 0.15);
  border: 2px dashed var(--accent2);
}
.fg-thumb-wrap {
  display: flex; align-items: center; justify-content: center;
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 3 / 4;     /* 일관된 카드 모양 (이미지는 contain) */
}
.fg-thumb-wrap img {
  max-width: 100%; max-height: 100%;
  object-fit: contain;
  pointer-events: none;
  -webkit-user-drag: none;
}
.fg-meta {
  display: flex; align-items: center; gap: 4px;
  font-size: 11px;
  color: var(--text3);
}
.fg-num {
  color: var(--accent2); font-weight: 700;
  min-width: 18px;
}
.fg-name {
  flex: 1; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--text2);
}
.fg-del {
  background: transparent; border: none; cursor: pointer;
  color: var(--text3); font-size: 12px;
  padding: 1px 5px; border-radius: 3px;
  flex-shrink: 0;
}
.fg-del:hover { background: rgba(248, 113, 113, 0.18); color: #f87171; }

/* ─────────────────────────────────────────────────
   shared/page-range.js — 페이지 범위 입력
   ───────────────────────────────────────────────── */
.pr-input { display: flex; flex-direction: column; gap: 8px; }
.pr-controls { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.pr-text {
  flex: 1; min-width: 200px;
  padding: 8px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
}
.pr-text:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.15);
}
.pr-btn {
  padding: 6px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text2);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.12s;
}
.pr-btn:hover {
  background: var(--panel-hover);
  border-color: var(--border-strong);
  color: var(--text);
}
.pr-summary { font-size: 12px; min-height: 18px; }
.pr-ok { color: var(--success); }
.pr-err { color: #f87171; }
.pr-hint { color: var(--text3); }

/* ─────────────────────────────────────────────────
   shared/progress-ui.js — 진행률 모달
   ───────────────────────────────────────────────── */
.pg-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.pg-modal {
  display: flex; flex-direction: column; gap: 14px;
  padding: 28px 32px;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  min-width: 320px;
  max-width: 480px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
.pg-message { color: var(--text); font-size: 14px; font-weight: 600; }
.pg-bar {
  height: 8px;
  background: rgba(74, 158, 255, 0.1);
  border-radius: 100px;
  overflow: hidden;
}
.pg-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent2) 100%);
  transition: width 0.2s ease;
  border-radius: 100px;
}
.pg-percent {
  text-align: right;
  color: var(--text2); font-size: 12px; font-weight: 600;
}
.pg-cancel {
  align-self: flex-end;
  padding: 6px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text2);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.12s;
}
.pg-cancel:hover {
  background: rgba(248, 113, 113, 0.1);
  border-color: #f87171;
  color: #f87171;
}

/* ─────────────────────────────────────────────────
   shared/progress-ui.js — 토스트
   ───────────────────────────────────────────────── */
.pg-toast {
  position: fixed; right: 20px; bottom: 20px;
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-left-width: 4px;
  border-radius: 8px;
  min-width: 280px; max-width: 420px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  z-index: 1001;
  transform: translateX(120%);
  transition: transform 0.3s ease;
}
.pg-toast.pg-toast-show { transform: translateX(0); }
.pg-toast + .pg-toast { bottom: 90px; }  /* 단순한 stacking — 본격 stacking 필요 시 v1.1 */
.pg-toast-error   { border-left-color: #f87171; }
.pg-toast-success { border-left-color: var(--success); }
.pg-toast-info    { border-left-color: var(--accent); }
.pg-toast-warn    { border-left-color: var(--warn); }
.pg-toast-icon {
  font-size: 16px; font-weight: 800; line-height: 1;
  flex-shrink: 0; margin-top: 2px;
}
.pg-toast-error   .pg-toast-icon { color: #f87171; }
.pg-toast-success .pg-toast-icon { color: var(--success); }
.pg-toast-info    .pg-toast-icon { color: var(--accent); }
.pg-toast-warn    .pg-toast-icon { color: var(--warn); }
.pg-toast-body { flex: 1; min-width: 0; }
.pg-toast-msg { color: var(--text); font-size: 13px; font-weight: 600; }
.pg-toast-details {
  color: var(--text2); font-size: 12px;
  margin-top: 4px;
  line-height: 1.4;
}
.pg-toast-close {
  background: transparent; border: none; cursor: pointer;
  color: var(--text3); font-size: 12px;
  padding: 2px 4px; border-radius: 4px;
  flex-shrink: 0;
  transition: color 0.12s;
}
.pg-toast-close:hover { color: var(--text); }

/* ─────────────────────────────────────────────────
   반응형
   ───────────────────────────────────────────────── */
@media (max-width: 640px) {
  .stage { padding: calc(var(--tph) + 20px) 14px 60px; }
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px;
  }
  .tool-card { padding: 12px; min-height: 96px; }
  .tbtn span, .home-link span { display: none; }
  .thumb-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 8px;
  }
  .pg-toast { right: 10px; left: 10px; min-width: 0; }

  /* 도구 페이지 모바일 */
  .tool-stage { padding: calc(var(--tph) + 16px) 14px 60px; gap: 18px; }
  .tool-title-row h1 { font-size: 20px; }
  .tool-actions { flex-direction: column-reverse; }
  .btn-primary, .btn-secondary { width: 100%; }
}