.viewerDialog {
  width: min(1100px, calc(100% - 18px));
  height: min(92vh, 900px);
  max-width: none;
  max-height: none;
  background: #172829;
  overflow: hidden;
}
.viewerHead {
  height: 74px;
  padding: 13px 20px;
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.viewerHead h2 { font-family: Georgia, serif; font-size: 22px; font-weight: 500; margin: 3px 0; }
.viewerStage {
  position: relative;
  height: calc(100% - 74px);
  overflow: auto;
  background: #344748;
  user-select: none;
  -webkit-user-select: none;
}
.viewerStage iframe { display: block; width: 100%; height: 100%; border: 0; background: white; }
.viewerStage img { display: block; max-width: 100%; min-height: 100%; object-fit: contain; margin: auto; pointer-events: none; }
.watermark {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 150px;
  align-items: center;
  justify-items: center;
  overflow: hidden;
  pointer-events: none;
}
.watermark span {
  color: rgba(12, 65, 63, .23);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .5px;
  white-space: nowrap;
  transform: rotate(-28deg);
  text-shadow: 0 0 1px rgba(255, 255, 255, .35);
}
@media (max-width: 600px) {
  .watermark { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 120px; }
  .watermark span { font-size: 11px; }
  .viewerDialog { height: 94vh; }
}
.headerActions { display: flex; gap: 10px; align-items: center; }
.secondary { border: 1px solid var(--teal); background: var(--paper); color: var(--teal); padding: 12px 16px; border-radius: 8px; font-weight: 750; cursor: pointer; }
.ownerPanel { padding: 26px; }
.ownerIntro { color: var(--muted); margin-top: -8px; }
.ownerChats { display: grid; gap: 10px; margin-top: 20px; max-height: 58vh; overflow: auto; }
.addGroupForm { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 0 10px; align-items: end; padding: 14px; margin-top: 18px; border: 1px solid var(--line); border-radius: 8px; background: #f4f1e8; }
.addGroupForm label { margin: 0; }
.addGroupForm .primary { align-self: end; }
.addGroupForm .error { grid-column: 1/-1; margin: 7px 0 0; }
.ownerChat { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 10px 16px; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: white; }
.ownerChat strong,.ownerChat small { display: block; }
.ownerChat small { color: var(--muted); margin-top: 4px; }
.status { align-self: start; border-radius: 20px; padding: 4px 8px; font-size: 11px; font-weight: 800; }
.status.approved { color: #17613c; background: #daf1e3; }
.status.pending { color: #835b0b; background: #fff0c7; }
.ownerActions { grid-column: 1/-1; display: flex; gap: 8px; }
.ownerActions button { border: 1px solid var(--line); background: var(--paper); color: var(--teal); padding: 8px 11px; border-radius: 6px; font-weight: 700; cursor: pointer; }
.emptyOwner { color: var(--muted); text-align: center; padding: 24px; }
@media (max-width: 600px) { .headerActions { width: 100%; } .headerActions button { flex: 1; } .addGroupForm { grid-template-columns: 1fr; gap: 10px; } .addGroupForm .error { grid-column: 1; } }