:root {
  --ink: #1a1a18;
  --paper: #f5f0e8;
  --rule: #c8b99a;
  --accent: #2a4494;
  --accent-light: #e8edf8;
  --muted: #6b6355;
  --amber-bg: #fff3e0;
  --amber-border: #e8c070;
  --rose: #e8c4c4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, "IBM Plex Sans", sans-serif;
  font-weight: 300;
}

.topbar {
  padding: 24px 32px;
  border-bottom: 2px solid var(--ink);
  background: #fdfaf4;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--muted);
}

.wordmark {
  font-family: Georgia, "Playfair Display", serif;
  font-size: 28px;
  font-weight: 700;
}
.wordmark span { color: var(--accent); }

.tagline {
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 4px;
}

.layout {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  align-items: flex-start;
}

@media (max-width: 800px) {
  .layout { flex-direction: column; }
}

#sidebar {
  width: 260px;
  flex-shrink: 0;
  padding: 24px 20px;
  border-right: 1px solid var(--rule);
  min-height: calc(100vh - 90px);
  overflow: hidden;
}

#sidebar.collapsed {
  width: 0;
  padding-left: 0;
  padding-right: 0;
  border-right: none;
}

@media (max-width: 800px) {
  #sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--rule);
    min-height: 0;
  }
  #sidebar.collapsed {
    width: 100%;
    height: 0;
    padding-top: 0;
    padding-bottom: 0;
    border-bottom: none;
  }
  #sidebarToggleBtn { display: none; }
}

.panel-toggle {
  flex-shrink: 0;
  align-self: stretch;
  width: 18px;
  padding: 0;
  background: #fdfaf4;
  border: none;
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.panel-toggle:hover { background: var(--accent-light); color: var(--accent); }
.panel-toggle svg { transition: transform 0.15s; }
.panel-toggle.flipped svg { transform: rotate(180deg); }

.sidebar-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  background: #fdfaf4;
  border: 1px solid var(--rule);
  color: var(--accent);
  cursor: pointer;
}
.icon-btn:hover:not(:disabled) { background: var(--accent-light); }
.icon-btn:disabled {
  background: #fdfaf4;
  color: var(--rule);
  cursor: not-allowed;
}

.sidebar-folder {
  margin-bottom: 10px;
}
.sidebar-folder summary {
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--muted);
  margin-bottom: 8px;
  cursor: pointer;
  user-select: none;
}

#submissionList,
#archivedList {
  max-height: 320px;
  overflow-y: auto;
}

.submission-items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.folder-node {
  margin-bottom: 2px;
}
.folder-node > summary {
  display: flex;
  align-items: center;
  font-size: 12px;
  color: var(--ink);
  padding: 6px 4px;
  cursor: pointer;
  user-select: none;
  list-style: none;
}
.folder-node > summary::-webkit-details-marker { display: none; }
.folder-node > summary::before {
  content: "▸";
  display: inline-block;
  width: 14px;
  color: var(--muted);
  font-size: 10px;
}
.folder-node[open] > summary::before { content: "▾"; }
.folder-node > summary:hover { background: var(--accent-light); }
.folder-node > summary.drop-target-hover {
  background: var(--accent);
  color: #fff;
}
.folder-node-label { flex: 1; min-width: 0; }
.folder-export-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  padding: 0;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  opacity: 0;
}
.folder-node > summary:hover .folder-export-btn { opacity: 1; }
.folder-export-btn:hover { color: var(--accent); }
.folder-node > .folder-node,
.folder-node > .submission-items {
  margin-left: 15px;
  padding-left: 8px;
  border-left: 1px solid var(--rule);
}

.submission-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  cursor: grab;
  border-left: 2px solid transparent;
}
.submission-item:hover { background: var(--accent-light); }
.submission-item.selected { background: rgba(200, 185, 154, 0.3); }
.submission-item.active {
  background: var(--accent-light);
  border-left-color: var(--accent);
}
.submission-item.archived { opacity: 0.65; }
.submission-item.dragging { opacity: 0.4; }
.submission-item-main {
  flex: 1;
  min-width: 0;
}
.submission-item-filename {
  font-size: 13px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.submission-item-meta {
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}
.submission-list-empty {
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
  padding: 4px 10px;
}

#submissionList.drop-target-hover,
#archivedList.drop-target-hover {
  outline: 2px dashed var(--accent);
  outline-offset: -2px;
}

body.drag-over::after {
  content: "Drop image(s) to upload";
  position: fixed;
  inset: 0;
  background: rgba(42, 68, 148, 0.12);
  border: 3px dashed var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 18px;
  color: var(--accent);
  pointer-events: none;
  z-index: 9999;
}

main {
  flex: 1;
  min-width: 0;
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px;
}

.controls {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
  background: #fdfaf4;
  border: 1px solid var(--rule);
  padding: 20px 24px;
  margin-bottom: 20px;
}

select, button, input[type="file"] {
  font-family: inherit;
  font-size: 14px;
}

button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 20px;
  cursor: pointer;
  font-weight: 500;
}
button:disabled {
  background: var(--rule);
  cursor: not-allowed;
}
button:not(:disabled):hover {
  opacity: 0.9;
}

.status {
  padding: 12px 16px;
  margin-bottom: 20px;
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 12px;
}
.status.info { background: var(--accent-light); color: var(--accent); }
.status.error { background: #fbe9e9; color: #a13a3a; border-left: 3px solid #a13a3a; }

.results-grid {
  display: flex;
  align-items: flex-start;
  gap: 24px;
}
.results-grid[hidden] { display: none; }

#imagePanel, #textPanel {
  flex: 1 1 0;
  min-width: 0;
}

.results-grid.image-collapsed #imagePanel {
  flex: 0 0 0;
  min-width: 0;
  overflow: hidden;
  padding: 0;
  border: none;
}

@media (max-width: 720px) {
  .results-grid { flex-direction: column; }
  #imageToggleBtn { display: none; }
  .results-grid.image-collapsed #imagePanel { display: none; }
}

.panel {
  background: #fdfaf4;
  border: 1px solid var(--rule);
  padding: 16px;
}

.panel-label {
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--muted);
  margin-bottom: 12px;
}

#imageWrap {
  position: relative;
  line-height: 0;
}

#resultImage {
  max-width: 100%;
  display: block;
}

#overlayLayer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.bbox-overlay {
  position: absolute;
  pointer-events: auto;
  border: 1.5px solid transparent;
  box-sizing: border-box;
  cursor: default;
}

.bbox-overlay.conf-medium { border-color: var(--amber-border); background: rgba(232, 192, 112, 0.12); }
.bbox-overlay.conf-low { border-color: #c85a5a; background: rgba(200, 90, 90, 0.1); }
.bbox-overlay.diff-delete { border-color: #a13a3a; background: rgba(161, 58, 58, 0.08); }

.bbox-overlay.highlighted {
  border-width: 2px;
  background: rgba(42, 68, 148, 0.18);
  border-color: var(--accent);
}

#textOutput {
  font-size: 15px;
  line-height: 2.1;
  white-space: pre-wrap;
}
#textOutput[contenteditable="true"] {
  outline: none;
  background: var(--accent-light);
  padding: 8px;
  margin: -8px;
  cursor: text;
}
#textOutput[contenteditable="true"] div { min-height: 1.2em; }

.word {
  padding: 1px 2px;
  border-radius: 2px;
}

.word.conf-medium { background: var(--amber-bg); }
.word.conf-low { background: #fbe4e4; }

.word.diff-delete {
  color: #a13a3a;
  text-decoration: line-through;
  text-decoration-color: rgba(161, 58, 58, 0.6);
  opacity: 0.8;
}
.word.diff-insert {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  background: var(--accent-light);
}

.word.highlighted {
  background: var(--accent-light);
  outline: 1.5px solid var(--accent);
}

.legend {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.legend[hidden] { display: none; }
.legend-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 5px;
  vertical-align: middle;
  border-radius: 2px;
}
.diff-delete-swatch { background: #a13a3a; }
.diff-insert-swatch { background: var(--accent); }

.panel-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.panel-label-row .panel-label { margin-bottom: 0; }

.text-btn {
  background: none;
  border: 1px solid var(--rule);
  color: var(--accent);
  padding: 4px 10px;
  font-family: "SF Mono", "IBM Plex Mono", monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
}
.text-btn:hover { background: var(--accent-light); }
.text-btn.finalized {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

#rawResponseLink {
  margin-left: auto;
  color: var(--accent);
  text-decoration: none;
}
#rawResponseLink:hover { text-decoration: underline; }

#exportDocxLink {
  color: var(--accent);
  text-decoration: none;
}
#exportDocxLink:hover { text-decoration: underline; }