:root {
  --row-height: 36px;
  --label-width: 220px;
  --header-height: 80px;
  --event-track-height: 24px;
  --year-axis-height: 48px;
  --border: #d8dde3;
  --border-strong: #b9c0c8;
  --bg: #ffffff;
  --bg-alt: #f6f8fa;
  --bg-region: #eef2f6;
  --text: #1f2328;
  --muted: #6a737d;
  --accent: #0969da;
  --indicator: #d62828;
  --primary: #0969da;
  --danger: #cf222e;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", "맑은 고딕", sans-serif;
  font-size: 13px;
  color: var(--text);
  background: var(--bg);
}

body {
  display: flex;
  flex-direction: column;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  flex-shrink: 0;
}

.toolbar h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  flex: 1;
}

.ctl {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
}

.ctl input[type="number"] {
  width: 90px;
}

.zoom-btn {
  width: 22px;
  height: 22px;
  padding: 0;
  border: 1px solid var(--border-strong);
  background: white;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.zoom-btn:hover { background: #f1f5f9; }

input[type="number"], input[type="text"], input[type="url"], textarea, select {
  font: inherit;
  padding: 4px 6px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: white;
}

input[type="range"] { vertical-align: middle; }

button {
  font: inherit;
  padding: 5px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  background: white;
  cursor: pointer;
}
button:hover { background: #eef2f6; }
button.primary { background: var(--primary); color: white; border-color: var(--primary); }
button.primary:hover { background: #0860c4; }
button.danger { background: white; color: var(--danger); border-color: var(--danger); }
button.danger:hover { background: #ffeef0; }
button.connected { background: #d1fae5; color: #065f46; border-color: #10b981; }
button.connected:hover { background: #a7f3d0; }

.spacer { flex: 1; }

/* Scroll container holds the whole grid; sticky elements live inside */
.scroll-container {
  flex: 1;
  overflow: auto;
  position: relative;
  background: var(--bg);
}

.grid {
  display: grid;
  grid-template-columns: var(--label-width) 1fr;
  grid-template-rows: auto auto;
  /* width set dynamically via --content-width */
  width: calc(var(--label-width) + var(--content-width, 5100px));
}

/* Corner cell: top-left */
.corner {
  background: var(--bg-alt);
  border-right: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
  z-index: 30;
  display: flex;
  flex-direction: column;
}
.corner-tracks {
  display: flex;
  flex-direction: column;
  border-bottom: 1px dashed var(--border);
}
.corner-track-row {
  height: var(--event-track-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px 0 14px;
  font-size: 11px;
  color: var(--muted);
  border-bottom: 1px dashed var(--border);
  cursor: grab;
}
.corner-track-row.dragging { opacity: 0.4; cursor: grabbing; }
.corner-track-row.drop-before { box-shadow: 0 -2px 0 var(--primary) inset; }
.corner-track-row.drop-after  { box-shadow: 0  2px 0 var(--primary) inset; }
.corner-group-row {
  height: var(--event-track-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  font-size: 11px;
  font-weight: 600;
  color: #0f172a;
  background: #f1f5f9;
  border-bottom: 1px dashed var(--border);
  cursor: grab;
}
.corner-group-row.dragging { opacity: 0.4; cursor: grabbing; }
.corner-group-row.drop-before { box-shadow: 0 -2px 0 var(--primary) inset; }
.corner-group-row.drop-after  { box-shadow: 0  2px 0 var(--primary) inset; }
.corner-group-row .group-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.corner-group-row .group-toggle {
  border: none;
  background: transparent;
  padding: 0 4px 0 0;
  font-size: 10px;
  cursor: pointer;
  color: #475569;
  line-height: 1;
}
.corner-group-row .group-toggle:hover { color: #0f172a; }
.corner-group-row .actions { display: inline-flex; gap: 2px; }
.corner-group-row .icon, .corner-track-row .actions .icon {
  border: 1px solid var(--border);
  background: white;
  border-radius: 3px;
  padding: 0 4px;
  font-size: 11px;
  cursor: pointer;
  line-height: 1.4;
}
.corner-group-row .icon:hover, .corner-track-row .actions .icon:hover { background: #f1f5f9; }
.corner-group-row .danger-icon, .corner-track-row .actions .danger-icon { color: var(--danger); }
.corner-group-row .danger-icon:hover, .corner-track-row .actions .danger-icon:hover { background: #ffeef0; }
.event-group-row {
  height: var(--event-track-height);
  border-bottom: 1px dashed var(--border);
  background: #f8fafc;
}
.corner-add-group-row {
  height: var(--event-track-height);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--muted);
  background: #fafbfc;
  border-bottom: 1px dashed var(--border);
  cursor: pointer;
}
.corner-add-group-row:hover { background: #eef2f7; color: #0f172a; }
.event-add-group-row {
  height: var(--event-track-height);
  border-bottom: 1px dashed var(--border);
  background: #fafbfc;
}
.corner-track-row .actions { display: inline-flex; gap: 2px; }
.corner-track-row:last-child { border-bottom: none; }
.corner-track-row .track-label {
  font-weight: 500;
  flex: 1;
  cursor: text;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 4px;
}
.corner-track-row .track-label:hover { background: #f1f5f9; border-radius: 3px; }
.corner-track-row .track-toggle {
  border: none;
  background: transparent;
  padding: 0 2px;
  font-size: 13px;
  cursor: pointer;
  line-height: 1;
  color: #475569;
}
.corner-track-row .track-toggle:hover { color: #0f172a; }
.corner-track-row .track-del {
  border: 1px solid var(--border);
  background: white;
  color: var(--danger);
  padding: 0 5px;
  border-radius: 3px;
  font-size: 11px;
  cursor: pointer;
  line-height: 1.4;
}
.corner-track-row .track-del:hover { background: #ffeef0; }
.corner-track-row.track-hidden .track-label { color: #94a3b8; text-decoration: line-through; }
.event-track-row.track-hidden { background: repeating-linear-gradient(45deg, transparent, transparent 6px, rgba(0,0,0,0.04) 6px, rgba(0,0,0,0.04) 12px); }
.corner-bottom {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600;
}

/* Top header: events + year axis */
.header {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border-strong);
  z-index: 20;
  display: flex;
  flex-direction: column;
  position: relative;
}
.event-tracks {
  display: flex;
  flex-direction: column;
  border-bottom: 1px dashed var(--border);
}
.event-track-row {
  height: var(--event-track-height);
  position: relative;
  border-bottom: 1px dashed var(--border);
  cursor: crosshair;
  overflow: hidden;
}
.event-track-row:last-child { border-bottom: none; }
.year-axis {
  height: var(--year-axis-height);
  position: relative;
  cursor: grab;
  user-select: none;
}
.year-axis.panning { cursor: grabbing; }

.year-tick {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}
.year-tick.major { background: var(--border-strong); }
.year-tick.zero { background: #888; }
.year-label {
  position: absolute;
  top: 4px;
  font-size: 11px;
  color: var(--muted);
  transform: translateX(-50%);
  white-space: nowrap;
  pointer-events: none;
}
.year-label.major { color: var(--text); font-weight: 500; }

.event-marker {
  position: absolute;
  top: 1px;
  bottom: 1px;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  font-size: 11px;
  cursor: pointer;
  z-index: 1;
}
.event-marker .dot {
  width: 6px; height: 6px;
  background: #f59e0b;
  border-radius: 50%;
  margin-bottom: 1px;
  flex-shrink: 0;
}
.event-marker .label {
  background: white;
  border: 1px solid #d97706;
  color: #92400e;
  padding: 0 4px;
  border-radius: 3px;
  white-space: nowrap;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 13px;
}
.event-marker:hover .label { background: #f59e0b; color: white; }

/* Range event in track — thin bar + auto-width label */
.event-range {
  position: absolute;
  top: 1px;
  bottom: 1px;
  cursor: pointer;
  z-index: 1;
}
.event-range .bar {
  position: absolute;
  top: 1px;
  left: 0;
  right: 0;
  height: 4px;
  background: #f59e0b;
  border-radius: 2px;
}
.event-range .label {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  border: 1px solid #d97706;
  color: #92400e;
  padding: 0 4px;
  border-radius: 3px;
  white-space: nowrap;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 11px;
  line-height: 13px;
}
.event-range:hover .label { background: #f59e0b; color: white; }
.event-range:hover .bar { background: #d97706; }

/* 화면 표시가 꺼진 사건 — 상단 트랙에서 흐리게 보이지만 클릭 편집은 가능 */
.event-marker.event-hidden,
.event-range.event-hidden {
  opacity: 0.35;
}
.event-marker.event-hidden .label,
.event-range.event-hidden .label {
  text-decoration: line-through;
}

/* Yellow overlay over country area (click-through) */
.events-overlay-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 4;
}
.event-overlay-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(217, 119, 6, 0.6);
}
.event-overlay-box {
  position: absolute;
  top: 0;
  bottom: 0;
  background: rgba(217, 119, 6, 0.15);
}
.axis-overlay { pointer-events: none; }

/* Left labels */
.rows-labels {
  background: var(--bg);
  border-right: 1px solid var(--border-strong);
  z-index: 10;
}

.region-block { border-bottom: 1px solid var(--border-strong); }
.region-add-row {
  padding: 10px 12px;
  font-size: 12px;
  color: var(--muted);
  background: #fafbfc;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  text-align: center;
}
.region-add-row:hover { background: #eef2f7; color: #0f172a; }
.region-header {
  background: var(--bg-region);
  padding: 6px 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  height: var(--row-height);
}
.region-header .region-name { flex: 1; }
.region-header button.icon {
  padding: 1px 5px; font-size: 11px;
  border: 1px solid var(--border);
  background: white;
}

.country-row-label {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 10px 0 22px;
  height: var(--row-height);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.country-row-label:hover { background: var(--bg-alt); }
.country-row-label .country-name { flex: 1; }
.country-row-label .actions {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 2px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .12s;
}
.country-row-label:hover .actions {
  opacity: 1;
  pointer-events: auto;
}
.country-row-label button.icon {
  padding: 1px 5px; font-size: 11px;
  border: 1px solid var(--border);
  background: white;
  color: var(--muted);
  border-radius: 3px;
  cursor: pointer;
}
.country-row-label button.icon:hover { background: var(--bg-alt); color: var(--text); }

/* Drag reorder (data.xml에 영향 없음, view-only) */
.region-header[draggable="true"],
.country-row-label[draggable="true"] { cursor: grab; }
.region-header.dragging,
.country-row-label.dragging { opacity: 0.4; cursor: grabbing; }
.region-header.drop-before,
.country-row-label.drop-before { box-shadow: inset 0 3px 0 var(--accent); }
.region-header.drop-after,
.country-row-label.drop-after { box-shadow: inset 0 -3px 0 var(--accent); }

/* Rows content area */
.rows-content {
  position: relative;
  background: var(--bg);
}

.grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.grid-bg .vline {
  position: absolute; top: 0; bottom: 0;
  width: 1px;
  background: #eef0f3;
}
.grid-bg .vline.major { background: #dde2e8; }
.grid-bg .vline.zero { background: #aaa; }
.grid-bg .row-sep {
  position: absolute; left: 0; right: 0;
  height: 1px;
  background: var(--border);
}
.grid-bg .region-sep {
  position: absolute; left: 0; right: 0;
  height: 1px;
  background: var(--border-strong);
}
.grid-bg .region-strip {
  position: absolute; left: 0; right: 0;
  background: var(--bg-region);
  height: var(--row-height);
}

/* Entries */
.entries-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.entry {
  position: absolute;
  border: 1px solid rgba(0,0,0,0.18);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 12px;
  overflow: hidden;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06);
  transition: box-shadow .12s, transform .12s;
  user-select: none;
}
.entry:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
  transform: translateY(-1px);
  z-index: 2;
}
.entry .name { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.entry .img-badge {
  width: 14px; height: 14px;
  background: rgba(255,255,255,0.7);
  border-radius: 2px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 10px;
}

/* Indicator */
.indicator-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--indicator);
  z-index: 5;
  pointer-events: none;
  transform: translateX(-1px);
  left: 0;
}
.indicator-handle {
  position: absolute;
  bottom: 4px;
  width: 14px; height: 14px;
  background: var(--indicator);
  border-radius: 50%;
  cursor: ew-resize;
  pointer-events: auto;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  transform: translateX(-50%);
  z-index: 6;
}
.indicator-handle::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 6px;
  background: var(--indicator);
}
.indicator-label {
  position: absolute;
  top: 4px;
  background: var(--indicator);
  color: white;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 11px;
  white-space: nowrap;
  pointer-events: none;
  transform: translateX(-50%);
  z-index: 6;
}

/* Sticky helpers */
.sticky-left { position: sticky; left: 0; }
.sticky-top { position: sticky; top: 0; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: white;
  border-radius: 8px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.25);
  width: 480px;
  max-width: 92vw;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
}
.modal h2 {
  margin: 0;
  padding: 14px 18px;
  font-size: 15px;
  border-bottom: 1px solid var(--border);
}
.modal-body {
  padding: 16px 18px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.modal-body label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}
.modal-body input, .modal-body textarea, .modal-body select {
  width: 100%;
  font-size: 13px;
  color: var(--text);
}
.modal-body textarea { min-height: 70px; resize: vertical; }
.modal-body .row { display: flex; gap: 10px; }
.modal-body .row > label { flex: 1; }
.modal-body .countries-list {
  max-height: 160px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px;
}
.modal-body .countries-list label {
  flex-direction: row; align-items: center; gap: 6px;
  padding: 3px 4px;
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
}
.modal-body .countries-list label:hover { background: var(--bg-alt); }
.modal-body .img-preview {
  max-width: 100%;
  max-height: 180px;
  display: block;
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-top: 4px;
}
.modal-body .image-preview {
  display: block;
  resize: both;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-top: 6px;
  width: 100%;
  height: 420px;
  min-width: 280px;
  min-height: 200px;
  max-width: 100%;
  background: #fafafa;
  position: relative;
}
.modal-body .image-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  cursor: grab;
  user-select: none;
  -webkit-user-drag: none;
  transform-origin: 0 0;
  will-change: transform;
}
.modal-body .image-preview.dragging img { cursor: grabbing; }
.modal-body .image-preview.empty {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-body .image-preview.empty img,
.modal-body .image-preview.empty .preview-tools,
.modal-body .image-preview.empty .trash,
.modal-body .image-preview.empty .resize-hint { display: none; }
.modal-body .image-preview.empty::after {
  content: '이미지 미리보기 — 위에서 경로 입력 또는 파일 업로드';
  color: var(--muted);
  font-size: 12px;
}
.modal-body .image-preview .resize-hint {
  position: absolute;
  bottom: 2px; right: 18px;
  font-size: 10px;
  color: var(--muted);
  background: rgba(255,255,255,0.7);
  padding: 0 4px;
  border-radius: 2px;
  pointer-events: none;
}
.modal-body .image-preview .preview-tools {
  position: absolute;
  top: 4px; right: 4px;
  display: flex; gap: 4px;
  z-index: 1;
}
.modal-body .image-preview .preview-tools button {
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 11px;
  cursor: pointer;
  color: var(--text);
}
.modal-body .image-preview .preview-tools button:hover { background: white; }
.modal-body .image-preview .trash {
  position: absolute;
  top: 4px; left: 4px;
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 13px;
  cursor: pointer;
  color: var(--danger);
  z-index: 1;
}
.modal-body .image-preview .trash:hover { background: #ffeef0; }
.modal-body .images-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}
.modal-body .images-stack:empty { margin-top: 0; }
.modal-body .images-stack .image-preview { margin-top: 0; }
.modal-actions {
  display: flex;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  align-items: center;
}

/* Tooltip */
.entry-tooltip {
  position: fixed;
  background: white;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
  padding: 8px 10px;
  max-width: 380px;
  z-index: 50;
  pointer-events: none;
  font-size: 12px;
}
.entry-tooltip .tt-name { font-weight: 600; margin-bottom: 4px; font-size: 13px; }
.entry-tooltip .tt-period { color: var(--muted); margin-bottom: 6px; }
.entry-tooltip img {
  display: block;
  width: auto; height: auto;
  max-width: 360px;
  max-height: 280px;
  border-radius: 4px;
  object-fit: contain;
  background: #fafafa;
}

/* 디바이스/방향/크기 상태 — 툴바 안에 항상 표시 */
#device-status {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 6px;
  background: rgba(15, 23, 42, 0.7);
  color: #fff;
  font-size: 10px;
  font-family: monospace;
  font-weight: 400;
  border-radius: 3px;
  vertical-align: middle;
  white-space: nowrap;
  align-self: center;
}

/* ============================================================
   Mobile — 폰(세로 ≤600px / 가로 height ≤500px) 모두 커버
   아이패드는 가로에서도 height 768+ 이라 안 걸림
   ============================================================ */
@media (max-width: 600px), (max-height: 500px) {
  :root {
    --label-width: 88px;
    --row-height: 28px;
    --event-track-height: 20px;
    --year-axis-height: 36px;
  }

  /* 툴바: 줄바꿈 대신 가로 스크롤 → 세로 공간 최소화 */
  .toolbar {
    padding: 4px 6px;
    gap: 6px;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
  }
  .toolbar h1 { display: none; }   /* 제목 숨김 */
  #device-status { flex-shrink: 0; margin-left: 0; }   /* 모바일에서도 항상 표시 */
  .controls {
    flex-wrap: nowrap;
    gap: 6px;
  }
  .controls > * { flex-shrink: 0; }
  .spacer { display: none; }

  .ctl { font-size: 10px; gap: 3px; }
  .ctl input[type="number"] { width: 56px; padding: 2px 4px; }
  #zoom { width: 80px; }
  #zoom-value { display: none; }

  button {
    padding: 3px 6px;
    font-size: 11px;
    border-radius: 4px;
  }

  /* 좌측 라벨 폭 축소 */
  .region-header {
    padding: 3px 6px;
    font-size: 11px;
    gap: 3px;
  }
  .region-header button.icon,
  .country-row-label button.icon {
    padding: 0 3px;
    font-size: 9px;
  }
  .country-row-label {
    padding: 0 2px 0 6px;
    font-size: 10px;
    gap: 2px;
  }
  .country-row-label .actions { right: 2px; gap: 1px; }

  /* corner의 트랙 라벨도 작게 */
  .corner-track-row {
    font-size: 9px;
    padding: 0 3px;
  }
  .corner-track-row .track-del {
    padding: 0 3px;
    font-size: 10px;
  }
  .corner-bottom { font-size: 11px; }

  /* 사건 마커/막대 라벨 축소 */
  .event-marker { font-size: 10px; }
  .event-marker .label, .event-range .label {
    font-size: 10px;
    line-height: 12px;
    max-width: 160px;
    padding: 0 3px;
  }
  .event-marker .dot { width: 5px; height: 5px; }
  .event-range .bar { height: 3px; }

  /* 모달도 작은 화면에 맞춰 */
  .modal { width: 96vw; }
  .modal-body { padding: 10px 12px; gap: 8px; }
  .modal-body .image-preview { height: 220px; min-height: 140px; }
}
.entry-tooltip .tt-desc { margin-top: 6px; color: #444; white-space: pre-wrap; }