.rvrh-abb-viewer {
  max-width: 820px;
  margin: 24px auto;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.rvrh-viewer-controls-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}
.rvrh-viewer-controls-top label { font-weight: 700; }
.rvrh-viewer-controls-top select {
  display: block;
  width: 100%;
  margin-top: 5px;
  padding: 8px;
}
.rvrh-viewer-stage-wrap { width: 100%; }
.rvrh-viewer-display-options {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  margin: -4px 0 14px;
  font-weight: 600;
}
.rvrh-viewer-display-options label {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}
.rvrh-viewer-stage {
  position: relative;
  overflow: hidden;
  background: #111;
  border: 1px solid #ddd;
  aspect-ratio: 1 / 1;
  width: 100%;
  margin: 0 auto;
}
.rvrh-viewer-frame {
  position: absolute;
  left: 0;
  top: 0;
  width: 200%;
  height: 300%;
  max-width: none;
  display: block;
  transition: none;
}
.rvrh-viewer-bubble {
  display: none;
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  z-index: 5;
  background: #fff;
  color: #111;
  border: 2px solid #111;
  border-radius: 18px;
  padding: 12px 16px;
  font-size: 17px;
  line-height: 1.35;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
}
.rvrh-viewer-bubble:after {
  content: "";
  position: absolute;
  left: 38px;
  bottom: -14px;
  width: 24px;
  height: 24px;
  background: #fff;
  border-right: 2px solid #111;
  border-bottom: 2px solid #111;
  transform: rotate(45deg);
}
.rvrh-viewer-caption {
  box-sizing: border-box;
  background: #fff;
  border: 1px solid #ddd;
  border-top: 0;
  padding: 13px 15px;
  min-height: 68px;
  line-height: 1.45;
}
.rvrh-viewer-dialogue { margin-top: 6px; }
.rvrh-viewer-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.rvrh-viewer-buttons button {
  padding: 9px 14px;
  border: 1px solid #222;
  background: #222;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
}
.rvrh-viewer-buttons button:nth-child(n+2) {
  background: #fff;
  color: #222;
}
.rvrh-viewer-status { margin-top: 8px; color: #555; }
.rvrh-viewer-empty, .rvrh-viewer-loader {
  border: 1px solid #ddd;
  padding: 20px;
  background: #fff;
}
@media (max-width: 700px) {
  .rvrh-viewer-controls-top { grid-template-columns: 1fr; }
  .rvrh-viewer-bubble { left: 14px; right: 14px; bottom: 14px; font-size: 15px; }
}
.rvrh-viewer-message { margin: 12px 0; }
.rvrh-viewer-empty-card {
  border: 1px solid #e0d7c9;
  background: linear-gradient(180deg, #fffaf1, #fff);
  border-radius: 14px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 4px 18px rgba(0,0,0,.06);
}
.rvrh-viewer-empty-title {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 8px;
  color: #241b13;
}
.rvrh-viewer-request-form {
  max-width: 520px;
  margin: 18px auto 0;
  display: grid;
  gap: 10px;
}
.rvrh-viewer-request-form input,
.rvrh-viewer-request-form textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
}
.rvrh-viewer-request-form button {
  border: 0;
  border-radius: 8px;
  padding: 11px 14px;
  background: #222;
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}
.rvrh-viewer-request-status {
  min-height: 22px;
  color: #4f3b20;
  font-weight: 600;
}