.pdf-viewer-shell {
  display: flex;
  flex-direction: column;
  height: 100%;
  user-select: none;
  -webkit-user-select: none;
}

.pdf-toolbar {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border, #fff);
  background: var(--surface, #0c1130);
  flex-shrink: 0;
}

.pdf-toolbar-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  flex: 1;
  min-width: 0;
}

.pdf-help-btn {
  flex-shrink: 0;
  margin-left: auto;
}

.pdf-help-layer {
  position: fixed;
  inset: 0;
  z-index: 250;
}

.pdf-help-layer[hidden] {
  display: none;
}

.pdf-help-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
}

.pdf-help-popup {
  position: absolute;
  top: 3.25rem;
  right: 0.75rem;
  width: min(22rem, calc(100vw - 1.5rem));
  max-height: min(70vh, 28rem);
  overflow: auto;
  background: var(--surface, #0c1130);
  border: 1px solid var(--border, #fff);
  padding: 0.85rem 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  user-select: text;
  -webkit-user-select: text;
}

.pdf-help-title {
  margin: 0 0 0.65rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pdf-help-lead {
  margin: 0.5rem 0 0.35rem;
  font-size: 0.65rem;
  color: var(--accent, #7dffb3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pdf-help-list {
  margin: 0 0 0.5rem;
  padding-left: 1.1rem;
  font-size: 0.68rem;
  line-height: 1.45;
  text-transform: none;
  letter-spacing: normal;
}

.pdf-help-list li {
  margin-bottom: 0.25rem;
}

.pdf-help-note {
  margin: 0.65rem 0 0;
  font-size: 0.62rem;
  color: var(--muted, #8fa3c8);
  text-transform: none;
  letter-spacing: normal;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 0.5rem;
}

.pdf-toolbar .btn.active {
  background: var(--border, #fff);
  color: var(--bg, #080c1f);
}

.pdf-toolbar .btn {
  width: auto;
  padding: 0.35rem 0.65rem;
  font-size: 0.65rem;
}

.pdf-pages {
  flex: 1;
  overflow: auto;
  padding: 1rem;
  background: #000;
}

.pdf-page-wrap {
  position: relative;
  margin: 0 auto 1rem;
  width: fit-content;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.pdf-page-wrap canvas.pdf-canvas {
  display: block;
  vertical-align: top;
}

.pdf-page-wrap canvas.annot-layer {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  pointer-events: none;
}

.pdf-page-wrap canvas.annot-layer.interactive {
  pointer-events: auto;
  cursor: crosshair;
}

.pdf-page-wrap.mode-comment {
  cursor: pointer;
}

.comment-marker,
.comment-bubble {
  display: none;
}

.comment-popup {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
}

.comment-popup-inner {
  background: var(--surface, #0c1130);
  border: 1px solid var(--border, #fff);
  padding: 1rem;
  width: 100%;
  max-width: 360px;
}

.comment-popup-inner textarea {
  width: 100%;
  min-height: 80px;
  margin-bottom: 0.75rem;
  user-select: text;
  -webkit-user-select: text;
  text-transform: none;
  letter-spacing: normal;
  font-family: inherit;
}

.pdf-status {
  padding: 0.35rem 0.75rem;
  font-size: 0.65rem;
  color: var(--muted, #8fa3c8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.pdf-toolbar .btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.save-success-title {
  color: var(--success, #7dffb3);
  font-weight: 700;
}

.save-success-message,
.save-success-name,
.save-success-note {
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.75rem;
  margin: 0 0 0.5rem;
}

.save-success-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.save-success-actions .btn {
  width: auto;
  text-decoration: none;
  text-align: center;
}

.pdf-loading {
  padding: 2rem;
  text-align: center;
  color: var(--muted, #8fa3c8);
}

.hand-tracker-video {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.pdf-viewer-shell.hand-camera-on .pdf-status::before {
  content: '';
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--danger, #ff6b6b);
  margin-right: 0.35rem;
  vertical-align: middle;
}

.pdf-pages {
  transform-origin: top center;
}

.hand-draw-cursor {
  position: fixed;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border-radius: 50%;
  border: 2px solid var(--accent, #7dffb3);
  background: rgba(125, 255, 179, 0.25);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.35);
  pointer-events: none;
  z-index: 50;
}

.pdf-viewer-shell.hand-draw-mode .annot-layer.interactive {
  cursor: none;
}

.pdf-viewer-shell.hand-draw-mode .pdf-page-wrap {
  cursor: none;
}