/* viewmaster — drafting-table instrument: warm paper + ink + vermilion
   글로우/그라디언트 없음. 헤어라인 보더와 단일 액센트로 정밀기기 느낌. */

/* 함초롬돋움 — rhwp 측정/렌더 폴백 + CAD 텍스트용 (한컴 무료 배포본) */
@font-face {
  font-family: "HCR Dotum";
  src: url("/fonts/HCRDotum.woff") format("woff");
  font-display: swap;
}

:root {
  --paper: #f4f1e8;
  --paper-2: #ebe7da;
  --card: #fdfcf7;
  --ink: #211e17;
  --ink-dim: #75705f;
  --line: #d9d3c2;
  --line-strong: #b3ab93;
  --accent: #d9480f;
  --accent-deep: #b23a0a;
  --accent-soft: rgba(217, 72, 15, 0.07);
  --ok: #2f9e44;
  --warn: #e8590c;
  --danger: #c92a2a;
  --radius: 6px;
  --mono: "IBM Plex Mono", "Cascadia Code", Consolas, monospace;
  --grid-dot: rgba(33, 30, 23, 0.05);
  --toolbar-bg: rgba(253, 252, 247, 0.96);
  --veil: rgba(244, 241, 232, 0.82);
  --hard-shadow: rgba(33, 30, 23, 0.14);

  /* 기존 변수명 호환 별칭 (뷰어 모듈이 참조할 수 있음) */
  --bg: var(--paper);
  --surface: var(--card);
  --surface-2: var(--paper-2);
  --border: var(--line);
  --text: var(--ink);
  --text-dim: var(--ink-dim);
  --accent-dim: var(--accent-deep);
}

/* 블랙 테마 — 같은 제도판 문법의 다크 버전 (웜 차콜 + 밝은 버밀리언) */
[data-theme="dark"] {
  --paper: #131110;
  --paper-2: #1a1815;
  --card: #201d19;
  --ink: #ece7da;
  --ink-dim: #a59d8a;
  --line: #36322a;
  --line-strong: #524b3e;
  --accent: #ff6b3d;
  --accent-deep: #ff8a64;
  --accent-soft: rgba(255, 107, 61, 0.1);
  --ok: #51cf66;
  --warn: #ffa94d;
  --danger: #ff6b6b;
  --grid-dot: rgba(236, 231, 218, 0.045);
  --toolbar-bg: rgba(32, 29, 25, 0.96);
  --veil: rgba(19, 17, 16, 0.82);
  --hard-shadow: rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

:root { color-scheme: light; }
[data-theme="dark"] { color-scheme: dark; }
/* 버튼 기본 buttontext가 테마와 어긋나는 것 방지 — 전역 상속 */
button { color: inherit; font: inherit; }

html, body {
  margin: 0; height: 100%;
  background:
    radial-gradient(var(--grid-dot) 1px, transparent 1px) 0 0 / 22px 22px,
    var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans KR", "Noto Sans KR", "Malgun Gothic", sans-serif;
  font-size: 15px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* 스크롤바 — 얇고 톤 맞춤 */
* { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--line-strong); border-radius: 8px;
  border: 3px solid transparent; background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background-color: #978e72; }

.shell { display: flex; height: 100vh; }

/* ---- 좌측 레일 ---- */
.rail {
  width: 232px; flex: none; display: flex; flex-direction: column; gap: 3px;
  background: var(--paper-2);
  border-right: 1px solid var(--line-strong);
  padding: 20px 14px 16px; position: relative;
}
.logo { display: flex; align-items: center; gap: 11px; padding: 2px 4px 20px; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 8px; flex: none;
  display: flex; align-items: center; justify-content: center;
  color: #fdfcf7; background: var(--accent);
  box-shadow: 2px 2px 0 rgba(33, 30, 23, 0.18);
}
.logo-text { font-weight: 700; font-size: 17.5px; letter-spacing: -0.4px; color: var(--ink); }
.rail-label {
  font-size: 10.5px; font-weight: 600; letter-spacing: 3px;
  color: var(--ink-dim); padding: 2px 10px 8px;
}
.rail-tab {
  position: relative; display: flex; align-items: center; gap: 11px;
  background: none; border: 1px solid transparent; color: var(--ink-dim);
  font-size: 14px; font-weight: 500; padding: 8px 10px;
  border-radius: var(--radius); cursor: pointer; text-align: left;
  transition: background 160ms, color 160ms, border-color 160ms;
}
.rt-ico {
  width: 30px; height: 30px; border-radius: 5px; flex: none;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--line);
  transition: border-color 160ms, color 160ms, background 160ms;
}
.rail-tab:hover { background: rgba(33, 30, 23, 0.05); color: var(--ink); }
.rail-tab:hover .rt-ico { border-color: var(--line-strong); }
.rail-tab.active {
  background: var(--card); border-color: var(--ink); color: var(--ink); font-weight: 600;
  box-shadow: 2px 2px 0 rgba(33, 30, 23, 0.14);
}
.rail-tab.active .rt-ico {
  background: var(--accent); border-color: var(--accent); color: #fdfcf7;
}
.rail-tab.active::before {
  content: ""; position: absolute; left: -15px; top: 50%; transform: translateY(-50%);
  width: 4px; height: 22px; background: var(--accent);
}
.rail-tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.rail-ctl { margin-top: auto; display: flex; gap: 6px; padding: 0 2px 10px; }
.ctl-btn {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  height: 30px; padding: 0 10px; border-radius: 5px; cursor: pointer;
  background: transparent; border: 1px solid var(--line);
  color: var(--ink-dim); font-size: 12px;
  transition: border-color 140ms, color 140ms, background 140ms;
}
.ctl-btn:hover { border-color: var(--line-strong); color: var(--ink); }
.ctl-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.ctl-lang { flex: 1; min-width: 0; appearance: none; -webkit-appearance: none; text-align: left; }
/* 네이티브 드롭다운 팝업 — OS 테마와 무관하게 항상 보이도록 명시 지정 */
.ctl-lang option { background: #fdfcf7; color: #211e17; }
[data-theme="dark"] .ctl-lang { color-scheme: dark; }
[data-theme="dark"] .ctl-lang option { background: #201d19; color: #ece7da; }
#themeToggle { width: 34px; flex: none; padding: 0; }
#themeToggle .ico-moon { display: none; }
[data-theme="dark"] #themeToggle .ico-moon { display: block; }
[data-theme="dark"] #themeToggle .ico-sun { display: none; }
.rail-foot {
  display: flex; align-items: center; gap: 9px;
  padding: 13px 8px 0; border-top: 1px solid var(--line-strong);
  font-size: 12px; color: var(--ink-dim);
}
.foot-dot {
  width: 7px; height: 7px; border-radius: 50%; flex: none;
  background: var(--ok);
  animation: foot-pulse 2.6s ease-in-out infinite;
}
.foot-txt { display: flex; flex-direction: column; line-height: 1.35; }
.foot-txt small { font-size: 10.5px; color: #98917c; }
@keyframes foot-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(47, 158, 68, 0.4); }
  50% { box-shadow: 0 0 0 5px rgba(47, 158, 68, 0); }
}

/* ---- 메인 ---- */
.main { flex: 1; overflow: auto; padding: 22px 26px; }
.tab-panel { display: none; height: 100%; }
.tab-panel.active { display: block; }
h2 { margin: 0 0 14px; font-size: 20px; font-weight: 700; letter-spacing: -0.3px; }
h2::before {
  content: ""; display: inline-block; width: 9px; height: 9px;
  background: var(--accent); margin-right: 10px;
}
h3 { margin: 18px 0 10px; font-size: 14px; color: var(--ink-dim); font-weight: 600; }
.hint { color: var(--ink-dim); font-size: 13px; }

/* ---- 뷰어 레이아웃 ---- */
.viewer-layout { display: flex; gap: 18px; height: calc(100vh - 46px); }
.file-side { width: 270px; flex: none; display: flex; flex-direction: column; gap: 12px; overflow: hidden; }

.dropzone {
  border: 1.5px dashed var(--line-strong); border-radius: var(--radius);
  padding: 22px 14px; text-align: center; cursor: pointer;
  color: var(--ink-dim); background: transparent;
  transition: border-color 180ms, background 180ms, color 180ms;
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--accent); background: var(--accent-soft); color: var(--ink);
}
.dropzone svg { color: var(--accent); }
.dropzone p { margin: 6px 0 0; font-size: 13.5px; }

.file-list { overflow-y: auto; display: flex; flex-direction: column; gap: 6px; padding: 1px; }
.file-item {
  display: flex; align-items: center; gap: 10px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 9px 12px; cursor: pointer;
  transition: border-color 140ms, background 140ms;
}
.file-item:hover { border-color: var(--line-strong); }
.file-item.active {
  border-color: var(--ink);
  box-shadow: inset 3px 0 0 var(--accent), 2px 2px 0 rgba(33, 30, 23, 0.1);
}
.file-item .fname {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font-size: 13.5px;
}
.file-item .fmeta { font-family: var(--mono); font-size: 10.5px; color: var(--ink-dim); }

.badge {
  flex: none; font-size: 10px; font-weight: 600; font-family: var(--mono);
  padding: 2px 7px; border-radius: 4px; text-transform: uppercase;
  background: transparent; border: 1px solid currentColor; color: var(--ink-dim);
}
.badge.document, .badge.office { color: #1864ab; }
.badge.hwp { color: #2b8a3e; }
.badge.image { color: #9c36b5; }
.badge.cad, .badge.mesh { color: #d9480f; }
.badge.text { color: #5f3dc4; }
.badge.video, .badge.audio { color: #0b7285; }
.badge.archive { color: #8a6d1b; }
.badge.font { color: #364fc7; }
.badge.db { color: #087f5b; }
.badge.unknown { color: #c92a2a; }

/* ---- 상단 지원 포맷 바 ---- */
.format-bar {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 10px 16px; margin-bottom: 14px;
}
.fb-row { display: flex; align-items: center; gap: 12px; }
.fb-title { font-weight: 700; font-size: 13px; color: var(--accent-deep); flex: none; }
.fb-chips { display: flex; gap: 7px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: thin; }
.fb-chip {
  cursor: pointer; background: transparent;
  font-size: 12px; font-weight: 600; padding: 3px 11px; border-radius: 999px;
  white-space: nowrap; transition: background 140ms, border-color 140ms;
}
.fb-chip b { font-family: var(--mono); margin-left: 3px; opacity: 0.75; }
.fb-chip:hover { background: rgba(33, 30, 23, 0.05); }
.fb-chip.open { border-color: var(--ink); background: var(--paper-2); }
.fb-detail {
  margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 5px; max-height: 240px; overflow-y: auto;
}
.fb-fmt { display: flex; align-items: baseline; gap: 12px; font-size: 12.5px; flex-wrap: wrap; }
.fb-fmt strong { min-width: 110px; }
.fb-exts { font-family: var(--mono); color: var(--ink-dim); }
.fb-viewer { color: var(--accent-deep); font-size: 11.5px; }
.fb-targets { color: var(--ink-dim); font-family: var(--mono); font-size: 11.5px; }

/* ---- 뷰어 방식 전환 세그먼트 ---- */
.viewer-switch {
  display: inline-flex; margin-left: 10px;
  border: 1px solid var(--line-strong); border-radius: 999px; overflow: hidden;
  background: var(--paper);
}
.vs-pill {
  background: none; border: none; color: var(--ink-dim);
  font-size: 12px; font-weight: 600; padding: 4px 12px; cursor: pointer;
  border-right: 1px solid var(--line); transition: background 140ms, color 140ms;
  white-space: nowrap;
}
.vs-pill:last-child { border-right: none; }
.vs-pill:hover:not(:disabled) { color: var(--ink); }
.vs-pill:disabled { opacity: 0.4; cursor: default; }
.vs-pill.active { background: var(--ink); color: var(--paper); }

/* ---- 광고 슬롯 ---- */
.ad-slot {
  border: 1px dashed var(--line-strong); border-radius: var(--radius);
  min-height: 90px; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 8px; color: var(--ink-dim); padding: 20px;
  background: var(--paper-2);
}
.ad-slot.ad-video { min-height: 220px; width: min(640px, 90%); }
.ad-label {
  font-family: var(--mono); font-size: 9.5px; font-weight: 600; letter-spacing: 1.5px;
  color: var(--ink-dim); border: 1px solid var(--line-strong); border-radius: 3px;
  padding: 1px 6px; align-self: flex-start; text-transform: uppercase;
}
.ad-fake-video { font-size: 48px; color: var(--line-strong); }
.ad-note { font-size: 13px; margin: 0; }
.ad-overlay {
  position: fixed; inset: 0; background: rgba(33, 30, 23, 0.45); z-index: 200;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.ad-card {
  background: var(--card); border: 1px solid var(--ink); border-radius: 10px; padding: 22px;
  display: flex; flex-direction: column; gap: 16px; max-width: 520px; width: 100%;
  box-shadow: 6px 6px 0 rgba(33, 30, 23, 0.25);
}
.ad-close { align-self: flex-end; }
.ad-close:disabled { opacity: 0.5; cursor: default; }
.ad-progress { display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 100%; gap: 18px; padding: 30px; }
.ad-progress-status { font-size: 14px; color: var(--ink); display: flex; align-items: center; gap: 9px; }
.spinner-inline {
  width: 15px; height: 15px; border: 2px solid var(--line);
  border-top-color: var(--accent); border-radius: 50%; display: inline-block;
  animation: spin 0.8s linear infinite;
}

/* ---- 뷰어 변환 드롭다운 ---- */
.convert-menu { position: relative; }
.convert-menu-list {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 30;
  background: var(--card); border: 1px solid var(--ink); border-radius: 8px;
  min-width: 220px; max-height: 320px; overflow-y: auto;
  box-shadow: 4px 4px 0 rgba(33, 30, 23, 0.18); padding: 6px;
}
.convert-menu-item {
  display: flex; align-items: baseline; gap: 8px; width: 100%;
  background: none; border: none; color: var(--ink);
  font-size: 13px; padding: 8px 12px; border-radius: 5px; cursor: pointer; text-align: left;
}
.convert-menu-item:hover { background: var(--accent-soft); color: var(--accent-deep); }
.convert-menu-item b { font-family: var(--mono); }
.convert-menu-item small { color: var(--ink-dim); }

.preview-pane {
  flex: 1; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: auto; position: relative; min-width: 0;
}
.empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 100%; color: var(--ink-dim); gap: 4px;
}
.es-ico {
  width: 64px; height: 64px; border-radius: 10px; margin-bottom: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); border: 1.5px dashed var(--line-strong);
  background: var(--paper);
}

.preview-toolbar {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 10px;
  background: var(--toolbar-bg);
  padding: 9px 14px; border-bottom: 1px solid var(--line); font-size: 13px;
}
.preview-toolbar .spacer { flex: 1; }
.preview-body { padding: 0; height: calc(100% - 44px); overflow: auto; }

/* 뷰어 본문 공통 */
.preview-body iframe { width: 100%; height: 100%; border: none; background: #525659; }
.preview-body img.preview-img { max-width: 100%; display: block; margin: 0 auto; }
.preview-body pre {
  margin: 0; padding: 16px 20px; font-family: var(--mono); font-size: 13px;
  white-space: pre-wrap; word-break: break-all;
}
.md-body { max-width: 800px; margin: 0 auto; padding: 24px; }
.md-body pre { background: var(--paper-2); border-radius: 6px; }
.md-body code { background: var(--paper-2); padding: 1px 5px; border-radius: 4px; font-family: var(--mono); font-size: 0.9em; }
.md-body table { border-collapse: collapse; }
.md-body td, .md-body th { border: 1px solid var(--line-strong); padding: 5px 11px; }
.md-body a { color: var(--accent-deep); }

table.csv-table { border-collapse: collapse; font-size: 13px; margin: 14px; font-family: var(--mono); }
table.csv-table td, table.csv-table th { border: 1px solid var(--line-strong); padding: 4px 10px; white-space: nowrap; }
table.csv-table th { background: var(--paper-2); position: sticky; top: 44px; }

.json-tree { font-family: var(--mono); font-size: 13px; padding: 16px 20px; }
.json-tree details { padding-left: 18px; }
.json-tree summary { cursor: pointer; color: var(--ink-dim); }
.json-tree .jkey { color: #1864ab; }
.json-tree .jstr { color: #2b8a3e; }
.json-tree .jnum { color: #d9480f; }
.json-tree .jbool { color: #9c36b5; }

.hex-view { font-family: var(--mono); font-size: 12.5px; padding: 16px 20px; color: var(--ink-dim); }
.hex-view .hx-off { color: var(--line-strong); }
.hex-view .hx-asc { color: var(--accent-deep); }

canvas.page-canvas { display: block; margin: 14px auto; background: #fff; box-shadow: 0 2px 10px rgba(33, 30, 23, 0.18); border: 1px solid var(--line); }
.cad-controls {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 16px; font-size: 12.5px; color: var(--ink-dim);
  background: var(--card); border-bottom: 1px solid var(--line);
  position: sticky; top: 44px; z-index: 4;
}
.cad-controls input[type="range"] {
  width: 220px; accent-color: var(--accent); cursor: pointer;
}
.cad-controls .eraser-size { width: 90px; }
.cad-level-label { color: var(--accent-deep); font-weight: 600; margin-left: 6px; }
canvas.cad-canvas { height: calc(100% - 38px) !important; }
canvas.mesh-canvas, canvas.cad-canvas { display: block; width: 100%; height: 100%; cursor: grab; }
canvas.mesh-canvas:active, canvas.cad-canvas:active { cursor: grabbing; }

/* ---- 버튼 ---- */
.btn {
  background: var(--card); color: var(--ink);
  border: 1px solid var(--line-strong);
  font-size: 13px; padding: 6px 14px; border-radius: 5px;
  cursor: pointer; transition: border-color 140ms, background 140ms, box-shadow 140ms;
}
.btn:hover { border-color: var(--ink); box-shadow: 2px 2px 0 rgba(33, 30, 23, 0.12); }
.btn.primary {
  background: var(--ink); color: var(--paper); border-color: var(--ink); font-weight: 600;
}
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: #fdfcf7; box-shadow: 2px 2px 0 rgba(33, 30, 23, 0.18); }
.btn.danger:hover { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---- 변환 탭 ---- */
.convert-layout { display: flex; gap: 22px; }
.convert-source { width: 300px; flex: none; }
.convert-source .file-list { max-height: 380px; }
.convert-targets { flex: 1; }
.target-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.target-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 16px; cursor: pointer; min-width: 120px;
  transition: border-color 140ms, box-shadow 140ms;
}
.target-card:hover {
  border-color: var(--ink); box-shadow: 2px 2px 0 rgba(33, 30, 23, 0.12);
}
.target-card .t-fmt { font-family: var(--mono); font-weight: 600; font-size: 15px; color: var(--accent-deep); text-transform: uppercase; }
.target-card .t-via { font-size: 11.5px; color: var(--ink-dim); }
.target-card .t-mode { font-size: 10.5px; color: var(--warn); }

.job-list { display: flex; flex-direction: column; gap: 8px; }
.job-card {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 10px 16px; font-size: 13.5px;
}
.job-card .j-route { font-family: var(--mono); font-weight: 600; }
.job-card .j-status {
  font-family: var(--mono); font-size: 11px; padding: 2px 9px; border-radius: 999px;
  border: 1px solid currentColor; color: var(--ink-dim);
}
.job-card .j-status.running { color: var(--warn); }
.job-card .j-status.done { color: var(--ok); }
.job-card .j-status.error { color: var(--danger); }
.job-card .j-err { color: var(--danger); font-size: 12px; flex: 1; }
.job-card .spacer { flex: 1; }

/* ---- 저장소 ---- */
.search-input {
  width: 100%; max-width: 520px; background: var(--card); border: 1px solid var(--line-strong);
  color: var(--ink); font: inherit; padding: 10px 16px; border-radius: var(--radius);
  margin-bottom: 16px; transition: border-color 140ms, box-shadow 140ms;
}
.search-input::placeholder { color: #a39b85; }
.search-input:focus {
  outline: none; border-color: var(--ink);
  box-shadow: 2px 2px 0 rgba(33, 30, 23, 0.12);
}
.storage-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.storage-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px 16px;
  transition: border-color 140ms, box-shadow 140ms;
}
.storage-card:hover { border-color: var(--line-strong); box-shadow: 2px 2px 0 rgba(33, 30, 23, 0.08); }
.storage-card .s-name { font-weight: 600; font-size: 14px; word-break: break-all; }
.storage-card .s-meta { font-family: var(--mono); font-size: 11px; color: var(--ink-dim); margin: 6px 0 10px; }
.storage-card .s-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.storage-card .s-derived { font-size: 11.5px; color: var(--ink-dim); margin-top: 8px; font-family: var(--mono); }
.storage-card .s-derived a { color: var(--accent-deep); text-decoration: none; }

/* ---- AI ---- */
.ai-result {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px 18px;
  font-size: 13.5px; margin-top: 8px;
}
.ai-result .a-mode { font-family: var(--mono); font-size: 11px; color: var(--warn); }
.ai-result .a-fmt { font-size: 17px; font-weight: 700; color: var(--accent-deep); font-family: var(--mono); }

/* ---- PDF 도구 탭 ---- */
.pdftool-ops { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.pdfop {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px 16px; cursor: pointer; text-align: left; min-width: 130px;
  display: flex; flex-direction: column; gap: 2px;
  transition: border-color 140ms, box-shadow 140ms;
}
.pdfop:hover { border-color: var(--line-strong); box-shadow: 2px 2px 0 rgba(33, 30, 23, 0.1); }
.pdfop.active {
  border-color: var(--ink);
  box-shadow: inset 0 3px 0 var(--accent), 2px 2px 0 rgba(33, 30, 23, 0.12);
}
.pdfop strong { font-size: 14px; }
.pdfop small { color: var(--ink-dim); font-size: 11.5px; }
.pdf-drop { margin-bottom: 14px; }
.pdf-merge-list .merge-cards { display: flex; flex-direction: column; gap: 6px; }
.merge-card {
  display: flex; align-items: center; gap: 10px; cursor: grab;
  background: var(--card); border: 1px solid var(--line); border-radius: 5px; padding: 9px 12px;
}
.merge-card.dragging { opacity: 0.4; }
.merge-card .mc-num { font-family: var(--mono); color: var(--accent-deep); font-weight: 600; width: 22px; }
.merge-card .mc-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.merge-card .mc-del { background: none; border: none; color: var(--ink-dim); cursor: pointer; font-size: 14px; }
.merge-card .mc-del:hover { color: var(--danger); }
.pdf-param { margin: 14px 0; display: flex; flex-direction: column; gap: 12px; max-width: 420px; }
.pdf-param label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--ink-dim); }
.pdf-param input, .pdf-param select {
  background: var(--card); border: 1px solid var(--line-strong); color: var(--ink);
  font: inherit; padding: 9px 12px; border-radius: 5px;
}
.pdf-done {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px 18px;
}

/* ---- 토스트 ---- */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translate(-50%, 80px);
  background: var(--ink); color: var(--paper); padding: 10px 22px;
  border-radius: 999px; font-size: 13.5px; opacity: 0; pointer-events: none;
  transition: transform 240ms, opacity 240ms; z-index: 100;
  box-shadow: 3px 3px 0 rgba(33, 30, 23, 0.2);
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.toast.error { background: var(--danger); color: #fff; }

.spinner {
  width: 26px; height: 26px; border: 3px solid var(--line);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin 0.8s linear infinite; margin: 60px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- 사이트 전역 드롭 오버레이 ---- */
.drop-overlay {
  position: fixed; inset: 0; z-index: 300;
  display: flex; align-items: center; justify-content: center;
  background: var(--veil); backdrop-filter: blur(2px);
  opacity: 0; transition: opacity 180ms ease;
  pointer-events: none;  /* 드래그 이벤트가 아래 document로 전달되게 */
}
.drop-overlay.active { opacity: 1; }
.drop-card {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  padding: 54px 70px; border-radius: 14px;
  border: 2.5px dashed var(--accent);
  background: var(--card);
  box-shadow: 8px 8px 0 rgba(33, 30, 23, 0.12);
  transform: scale(0.92); transition: transform 220ms cubic-bezier(0.2, 1.2, 0.4, 1);
}
.drop-overlay.active .drop-card { transform: scale(1); }
.drop-ring {
  width: 96px; height: 96px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); background: var(--accent-soft);
  animation: drop-pulse 1.4s ease-in-out infinite;
}
.drop-title { margin: 0; font-size: 24px; font-weight: 700; color: var(--ink); }
.drop-sub { margin: 0; font-size: 14px; color: var(--ink-dim); }
@keyframes drop-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(217, 72, 15, 0.35); transform: translateY(0); }
  50% { box-shadow: 0 0 0 18px rgba(217, 72, 15, 0); transform: translateY(-5px); }
}
@media (prefers-reduced-motion: reduce) {
  .drop-ring { animation: none; }
  .drop-card { transition: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation-duration: 0.01ms !important; }
}

@media (max-width: 900px) {
  .rail { width: 64px; padding: 16px 10px 12px; align-items: center; }
  .rt-txt, .logo-text, .rail-label, .rail-foot, .ctl-lang { display: none; }
  .rail-ctl { padding-bottom: 0; }
  .rail-tab { padding: 6px; justify-content: center; }
  .rail-tab.active::before { left: -11px; }
  .logo { padding-bottom: 14px; }
  .viewer-layout { flex-direction: column; height: auto; }
  .file-side { width: 100%; }
  /* 모바일: 미리보기를 위로, 파일 목록은 접어서 아래 (보던 파일 우선) */
  .preview-pane { min-height: 60vh; order: -1; }
  .file-list { max-height: 200px; }
  .main { padding: 12px; }
  .fb-row { flex-wrap: wrap; }
  .preview-toolbar { flex-wrap: wrap; gap: 6px; }
  .viewer-switch { margin-left: 0; }
  .convert-layout { flex-direction: column; }
  .convert-source { width: 100%; }
  .ad-card { max-width: 100%; }
  /* 3D/CAD 캔버스 터치 줌 허용 */
  canvas.mesh-canvas, canvas.cad-canvas { touch-action: none; }
}

/* 터치 디바이스: 핀치 줌 제스처가 캔버스 휠 핸들러와 충돌하지 않게 */
@media (pointer: coarse) {
  .vs-pill, .fb-chip, .convert-menu-item { padding-top: 8px; padding-bottom: 8px; }
}

/* ---- highlight.js 라이트 토큰 (테마 CSS 미동봉 — github-light 계열 자체 정의) ---- */
.hljs-comment, .hljs-quote { color: #6a737d; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-template-tag, .hljs-type { color: #d73a49; }
.hljs-string, .hljs-regexp, .hljs-template-variable { color: #032f62; }
.hljs-number, .hljs-literal, .hljs-symbol, .hljs-bullet { color: #005cc5; }
.hljs-title, .hljs-title.function_, .hljs-title.class_ { color: #6f42c1; }
.hljs-attr, .hljs-attribute, .hljs-variable, .hljs-built_in, .hljs-params { color: #e36209; }
.hljs-section, .hljs-name, .hljs-selector-id, .hljs-selector-class { color: #22863a; }
.hljs-meta, .hljs-doctag { color: #6a737d; }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 700; }
.hljs-addition { color: #22863a; background: rgba(34, 134, 58, 0.1); }
.hljs-deletion { color: #b31d28; background: rgba(179, 29, 40, 0.1); }

/* 다크 테마 코드/JSON 토큰 */
[data-theme="dark"] .hljs-comment, [data-theme="dark"] .hljs-quote,
[data-theme="dark"] .hljs-meta, [data-theme="dark"] .hljs-doctag { color: #8b949e; }
[data-theme="dark"] .hljs-keyword, [data-theme="dark"] .hljs-selector-tag,
[data-theme="dark"] .hljs-template-tag, [data-theme="dark"] .hljs-type { color: #ff7b72; }
[data-theme="dark"] .hljs-string, [data-theme="dark"] .hljs-regexp,
[data-theme="dark"] .hljs-template-variable { color: #a5d6ff; }
[data-theme="dark"] .hljs-number, [data-theme="dark"] .hljs-literal,
[data-theme="dark"] .hljs-symbol, [data-theme="dark"] .hljs-bullet { color: #79c0ff; }
[data-theme="dark"] .hljs-title, [data-theme="dark"] .hljs-title.function_,
[data-theme="dark"] .hljs-title.class_ { color: #d2a8ff; }
[data-theme="dark"] .hljs-attr, [data-theme="dark"] .hljs-attribute,
[data-theme="dark"] .hljs-variable, [data-theme="dark"] .hljs-built_in,
[data-theme="dark"] .hljs-params { color: #ffa657; }
[data-theme="dark"] .hljs-section, [data-theme="dark"] .hljs-name,
[data-theme="dark"] .hljs-selector-id, [data-theme="dark"] .hljs-selector-class { color: #7ee787; }
[data-theme="dark"] .hljs-addition { color: #aff5b4; background: rgba(46, 160, 67, 0.15); }
[data-theme="dark"] .hljs-deletion { color: #ffdcd7; background: rgba(248, 81, 73, 0.15); }
[data-theme="dark"] .json-tree .jkey { color: #79c0ff; }
[data-theme="dark"] .json-tree .jstr { color: #7ee787; }
[data-theme="dark"] .json-tree .jnum { color: #ffa657; }
[data-theme="dark"] .json-tree .jbool { color: #d2a8ff; }

/* ---------------------------------------------------------------- PDF 시각 페이지 편집기 (W6-2) */
.pdf-editor { margin-top: 14px; }
.pe-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.pe-bar h3 { margin: 0; font-size: 15px; }
.pe-bar h3 small { color: var(--muted, #8a8475); font-weight: 400; }
.pe-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.pe-page {
  position: relative; width: 104px; padding: 8px;
  border: 1px solid var(--border); border-radius: 6px; background: var(--surface-2);
  cursor: grab; transition: box-shadow .12s, opacity .12s, transform .12s;
}
.pe-page:hover { box-shadow: 2px 2px 0 var(--accent-soft); border-color: var(--accent); }
.pe-page.dragging { opacity: .4; cursor: grabbing; }
.pe-page.deleted { opacity: .35; filter: grayscale(1); cursor: default; }
.pe-page.deleted .pe-thumb { outline: 2px solid var(--accent); }
.pe-thumb {
  display: block; width: 100%; height: 120px; object-fit: contain;
  background: #fff; border: 1px solid var(--border);
  transition: transform .15s ease;
}
.pe-noimg { background: repeating-linear-gradient(45deg, var(--paper), var(--paper) 6px, var(--paper-2) 6px, var(--paper-2) 12px); }
.pe-num {
  position: absolute; top: 4px; left: 4px; min-width: 18px; height: 18px; padding: 0 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 600; color: #fdfcf7; background: var(--accent);
  border-radius: 4px;
}
.pe-tools { display: flex; gap: 6px; margin-top: 6px; }
.pe-tools button {
  flex: 1; padding: 3px 0; font-size: 13px; line-height: 1;
  border: 1px solid var(--border); border-radius: 4px; background: var(--bg); cursor: pointer;
}
.pe-tools button:hover { border-color: var(--accent); color: var(--accent); }

/* 스프레드시트 뷰어 (xlsx/xls/ods) — 원본 표 그대로 */
.sheet-tabs { display: flex; gap: 4px; padding: 8px 12px; flex-wrap: wrap; border-bottom: 1px solid var(--line); }
.sheet-tab { padding: 4px 12px; border: 1px solid var(--line); background: var(--card); border-radius: 4px; cursor: pointer; font-size: 13px; color: inherit; }
.sheet-tab.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.sheet-view { overflow: auto; }
.sheet-view table { border-collapse: collapse; font-size: 13px; }
.sheet-view td, .sheet-view th { border: 1px solid var(--line); padding: 3px 8px; white-space: nowrap; max-width: 360px; overflow: hidden; text-overflow: ellipsis; }