.annotation-shell { max-width: 980px; }
.annotation-card { min-width: 0; }
.annotation-workspace { margin-top: 18px; }
.annotation-workspace[hidden] { display: none; }

.annotation-toolbar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--ink);
}
.annotation-toolbar button {
  min-height: 42px;
  padding: 8px 5px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 8px "DM Mono", monospace;
  font-weight: 500;
  letter-spacing: .08em;
  cursor: pointer;
}
.annotation-toolbar button + button { border-left: 1px solid var(--ink); }
.annotation-toolbar button:hover, .annotation-toolbar button.active { background: var(--ink); color: var(--white); }

.annotation-layout { margin-top: 10px; display: grid; gap: 10px; }
.annotation-viewer-column { min-width: 0; }
.page-navigation {
  min-height: 38px;
  display: grid;
  grid-template-columns: 38px 1fr 38px;
  align-items: center;
  border: 1px solid var(--line);
  border-bottom: 0;
}
.page-navigation button { height: 37px; border: 0; background: transparent; font: 13px "DM Mono", monospace; cursor: pointer; }
.page-navigation button:hover:not(:disabled) { background: var(--ink); color: var(--white); }
.page-navigation button:disabled { opacity: .25; cursor: default; }
.page-navigation label { text-align: center; color: var(--muted); font: 7px "DM Mono", monospace; letter-spacing: .08em; }
.page-navigation input { width: 45px; min-height: 27px; margin: 0 5px; border: 1px solid var(--line); background: #d7d8d3; text-align: center; font: 10px "DM Mono", monospace; }

.annotation-viewer {
  min-height: 440px;
  padding: 12px;
  display: grid;
  align-items: start;
  justify-items: center;
  overflow: auto;
  border: 1px solid var(--ink);
  background: #8f908c;
}
.pdf-page-stage { position: relative; line-height: 0; background: white; box-shadow: 0 8px 24px rgba(17,18,16,.25); touch-action: none; }
.pdf-page-stage canvas { display: block; max-width: none; }
.annotation-overlay { position: absolute; inset: 0; line-height: normal; cursor: default; }
.annotation-overlay.mode-highlight { cursor: crosshair; }
.annotation-overlay.mode-comment { cursor: copy; }
.annotation-mark { position: absolute; margin: 0; padding: 0; border: 1px solid rgba(17,18,16,.52); cursor: pointer; }
.annotation-mark.highlight { background: color-mix(in srgb, var(--annotation-color) 46%, transparent); mix-blend-mode: multiply; }
.annotation-mark.comment {
  width: 23px !important;
  height: 23px !important;
  display: grid;
  place-items: center;
  border-radius: 50% 50% 50% 3px;
  background: var(--annotation-color);
  color: var(--ink);
  font: 12px "DM Mono", monospace;
  box-shadow: 2px 2px 0 rgba(17,18,16,.28);
}
.annotation-mark.selected { outline: 3px solid var(--ink); outline-offset: 2px; z-index: 3; }
.annotation-draft { position: absolute; border: 1px dashed var(--ink); background: rgba(255,228,92,.42); pointer-events: none; }
.annotation-hint { margin: 8px 2px 0; color: var(--muted); font: 7px/1.5 "DM Mono", monospace; letter-spacing: .04em; }

.annotation-inspector { min-width: 0; padding: 13px; border: 1px solid var(--ink); background: rgba(212,213,208,.55); }
.inspector-empty { min-height: 190px; display: grid; align-content: center; text-align: center; }
.inspector-empty span { font: 8px "DM Mono", monospace; letter-spacing: .1em; }
.inspector-empty p { max-width: 230px; margin: 9px auto 0; color: var(--muted); font-size: 9px; line-height: 1.5; }
.inspector-heading { margin-bottom: 14px; padding-bottom: 10px; display: flex; align-items: end; justify-content: space-between; border-bottom: 1px solid var(--line); }
.inspector-heading span { color: var(--muted); font: 7px "DM Mono", monospace; letter-spacing: .08em; }
.inspector-heading strong { font: 10px "Archivo Black", "Inter", sans-serif; }
.annotation-inspector .field + .field { margin-top: 10px; }
.color-field input { height: 38px; padding: 4px; cursor: pointer; }
.annotation-inspector .tool-action { margin-top: 12px; min-height: 40px; font-size: 8px; }
.annotation-summary { margin-top: 13px; padding-top: 11px; display: flex; justify-content: space-between; border-top: 1px solid var(--line); color: var(--muted); font: 7px "DM Mono", monospace; letter-spacing: .08em; }
.annotation-summary strong { color: var(--ink); font-size: 10px; }
.document-comments-heading { margin-top: 13px; padding-top: 11px; display: flex; justify-content: space-between; border-top: 1px solid var(--line); color: var(--muted); font: 7px "DM Mono", monospace; letter-spacing: .08em; }
.document-comments-heading strong { color: var(--ink); font-size: 10px; }
.document-comments { max-height: 285px; margin-top: 8px; display: grid; gap: 6px; overflow: auto; }
.document-comments > p { margin: 4px 0; color: var(--muted); font: 8px/1.5 "DM Mono", monospace; }
.document-comment {
  width: 100%;
  padding: 9px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  align-items: start;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.25);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}
.document-comment:hover, .document-comment.active { border-color: var(--ink); background: var(--white); }
.document-comment span { padding: 3px 4px; background: var(--ink); color: var(--white); font: 7px "DM Mono", monospace; white-space: nowrap; }
.document-comment strong { font: 8px/1.45 "Inter", sans-serif; font-weight: 600; overflow-wrap: anywhere; }
.annotation-downloads { display: grid; gap: 8px; }

@media (min-width: 720px) {
  .annotation-layout { grid-template-columns: minmax(0, 1fr) 260px; align-items: start; }
  .annotation-inspector { position: sticky; top: 12px; }
  .annotation-downloads { grid-template-columns: 1fr 1.5fr; }
  .annotation-viewer { min-height: 620px; }
}

@media (max-width: 519px) {
  .annotation-card { padding-right: 11px; padding-left: 11px; }
  .annotation-viewer { padding: 8px; }
}