.sv-shell {
  --sv-color: #5263d5;
  min-width: 0;
  width: 100%;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
}
.sv-topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-color);
}
.sv-heading {
  min-width: 0;
  flex: 1;
}
.sv-heading h2 {
  margin: 3px 0 0;
  font-size: 1.12rem;
  font-weight: 680;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.sv-eyebrow,
.sv-section-label,
.sv-type {
  color: var(--text-secondary);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}
.sv-section-label {
  display: block;
  margin: 12px 0;
}
.sv-toptools,
.sv-widget-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
.sv-button {
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: 7px;
  padding: 7px 10px;
  font-size: 0.76rem;
  line-height: 1.4;
  white-space: nowrap;
  cursor: pointer;
}
.sv-button:hover,
.sv-button[aria-pressed="true"] {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.sv-button:disabled {
  opacity: 0.45;
}
.sv-action {
  color: var(--accent);
  border-color: var(--accent);
  margin: 8px 0;
}
.sv-layout {
  display: flex;
  min-width: 0;
  height: min(76vh, 800px);
  min-height: 540px;
  position: relative;
}
.sv-outline,
.sv-inspector {
  flex: 0 0 210px;
  width: 210px;
  overflow: auto;
  padding: 18px 16px;
  background: var(--bg-secondary);
  overscroll-behavior: contain;
  z-index: 4;
}
.sv-outline {
  border-right: 1px solid var(--border-color);
}
.sv-inspector {
  flex-basis: 280px;
  width: 280px;
  border-left: 1px solid var(--border-color);
}
.sv-inspector h3 {
  margin: 10px 0 18px;
  font-size: 1.18rem;
  line-height: 1.35;
}
.sv-inspector-content {
  overflow-wrap: anywhere;
}
.sv-description,
.sv-caption {
  color: var(--text-secondary);
  font-size: 0.76rem;
  line-height: 1.65;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.sv-search {
  width: 100%;
  min-width: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 7px;
  padding: 8px 10px;
  color: var(--text-primary);
  font-size: 0.75rem;
  margin: 5px 0 16px;
}
.sv-outline-item {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  width: 100%;
  gap: 1px 10px;
  border: 0;
  border-radius: 7px;
  padding: 10px 6px;
  text-align: left;
  background: transparent;
  color: var(--text-primary);
  font-size: 0.77rem;
  overflow-wrap: anywhere;
}
.sv-outline-item:hover {
  background: var(--bg-primary);
}
.sv-outline-item small {
  grid-column: 2;
  color: var(--text-secondary);
  font-size: 0.65rem;
}
.sv-outline-dot {
  width: 6px;
  height: 6px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--sv-color);
}
.sv-stage-wrap {
  min-width: 0;
  flex: 1;
  position: relative;
  background: var(--bg-primary);
  overflow: hidden;
}
.sv-stage {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background-color: var(--bg-primary);
  background-image: radial-gradient(
    circle,
    var(--border-color) 1.2px,
    transparent 1.4px
  );
  background-size: 24px 24px;
  touch-action: none;
  outline-offset: -4px;
  cursor: grab;
}
.sv-stage.sv-dragging,
.sv-stage.sv-pan-mode {
  cursor: grabbing;
}
.sv-stage.sv-dragging {
  user-select: none;
}
.sv-world {
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 0 0;
  will-change: transform;
}
.sv-connections {
  position: absolute;
  top: 0;
  left: 0;
  overflow: visible;
  pointer-events: none;
}
.sv-connections path {
  fill: none;
  stroke-width: 1.8;
  opacity: 0.6;
}
.sv-connections text {
  text-anchor: middle;
  fill: var(--text-secondary);
  font:
    11px system-ui,
    sans-serif;
  paint-order: stroke;
  stroke: var(--bg-primary);
  stroke-width: 5px;
  stroke-linejoin: round;
}
.sv-block {
  position: absolute;
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--border-color);
  border-top: 3px solid var(--sv-color);
  background: var(--bg-secondary);
  box-shadow: 0 3px 12px #1d29480a;
  border-radius: 10px;
  overflow: hidden;
  cursor: default;
  z-index: 1;
}
.sv-block.sv-selected {
  outline: 2px solid var(--sv-color);
  outline-offset: 3px;
  box-shadow: 0 8px 24px #1d29481a;
}
.sv-node-header {
  display: block;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
  background: transparent;
  border: 0;
  padding: 15px 18px 10px;
  cursor: pointer;
  flex: 0 0 auto;
}
.sv-node-header h3 {
  font-size: 1rem;
  font-weight: 660;
  line-height: 1.35;
  margin: 5px 0 0;
  overflow-wrap: anywhere;
}
.sv-type {
  color: var(--sv-color);
}
.sv-body {
  min-height: 0;
  overflow: auto;
  padding: 0 18px 18px;
  scrollbar-width: thin;
  overscroll-behavior: contain;
  overflow-wrap: anywhere;
  font-size: 0.82rem;
}
.sv-text {
  white-space: pre-wrap;
  line-height: 1.7;
  overflow-wrap: anywhere;
  margin: 8px 0 12px;
}
.sv-items {
  padding-left: 18px;
  margin: 4px 0;
  line-height: 1.7;
}
.sv-items li + li {
  margin-top: 9px;
}
.sv-date {
  color: var(--sv-color);
  font-size: 0.7rem;
  font-weight: 650;
  margin-bottom: 5px;
}
.sv-comparison {
  display: flex;
  gap: 22px;
  min-width: 0;
}
.sv-comparison > section {
  flex: 1;
  min-width: 120px;
}
.sv-comparison > section + section {
  border-left: 1px solid var(--border-color);
  padding-left: 18px;
}
.sv-comparison h4,
.sv-event-details h4,
.sv-all-hotspots h4 {
  font-size: 0.87rem;
  margin: 5px 0 10px;
}
.sv-table {
  border-collapse: collapse;
  font-size: 0.8rem;
  width: 100%;
}
.sv-table th,
.sv-table td {
  padding: 9px 10px;
  border: 1px solid var(--border-color);
  white-space: pre-wrap;
  min-width: 90px;
}
.sv-table th {
  font-weight: 650;
  background: var(--bg-primary);
}
.sv-flashcard {
  font-size: 1rem;
  line-height: 1.6;
  white-space: pre-wrap;
  margin: 8px 0 14px;
}
.sv-timeline {
  display: flex;
  gap: 14px;
  padding: 10px 0 15px;
  overflow: auto;
  border-bottom: 1px solid var(--border-color);
  scrollbar-width: thin;
}
.sv-timeline-event {
  flex: 1 0 138px;
  display: flex;
  flex-direction: column;
  text-align: left;
  position: relative;
  padding: 12px 10px;
  background: var(--bg-primary);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.75rem;
}
.sv-timeline-event[aria-pressed="true"] {
  border-color: var(--sv-color);
}
.sv-timeline-event .sv-date {
  font-size: 0.62rem;
}
.sv-event-details {
  padding-top: 14px;
}
.sv-image {
  display: block;
  max-width: 100%;
  width: 100%;
  height: auto;
  border-radius: 7px;
}
.sv-picture {
  position: relative;
  margin-top: 5px;
}
.sv-hotspot {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 29px;
  height: 29px;
  border-radius: 50%;
  background: var(--sv-color);
  color: white;
  border: 2px solid white;
  font-size: 0.72rem;
  font-weight: 700;
  box-shadow: 0 2px 8px #0003;
}
.sv-hotspot-details {
  font-size: 0.8rem;
}
.sv-quiz-choices {
  display: grid;
  gap: 6px;
}
.sv-quiz-choice {
  border: 1px solid var(--border-color);
  border-radius: 7px;
  padding: 8px 10px;
  text-align: left;
  font-size: 0.79rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  overflow-wrap: anywhere;
}
.sv-quiz-choice[aria-pressed="true"] {
  background: var(--accent-soft);
  border-color: var(--accent);
}
.sv-feedback {
  margin: 10px 0 0;
  font-size: 0.78rem;
  white-space: pre-wrap;
}
.sv-success {
  color: #28836c;
}
.sv-retry {
  color: #a26720;
}
.sv-group {
  background: color-mix(in srgb, var(--sv-color) 4%, transparent);
  border: 1px dashed var(--sv-color);
  box-shadow: none;
  z-index: 0;
  pointer-events: none;
}
.sv-group .sv-node-header {
  pointer-events: auto;
}
.sv-group .sv-body {
  opacity: 0.7;
}
.sv-widget {
  width: 100%;
  height: 230px;
  border: 1px solid var(--border-color);
  border-radius: 7px;
  background: white;
}
.sv-widget-host:empty {
  display: none;
}
.sv-widget-actions {
  margin-bottom: 8px;
}
.sv-widget-notes,
.sv-all-hotspots {
  margin: 12px 0;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.sv-widget-notes summary,
.sv-all-hotspots summary {
  cursor: pointer;
}
.sv-canvas-controls {
  position: absolute;
  z-index: 3;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 5px;
  background: var(--bg-secondary);
  box-shadow: 0 4px 18px #1d294812;
  max-width: calc(100% - 18px);
}
.sv-canvas-controls .sv-button {
  border-color: transparent;
  padding: 7px 9px;
}
.sv-zoom {
  min-width: 47px;
  text-align: center;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}
.sv-help {
  margin: 0;
  padding: 11px 18px;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.69rem;
}
.sv-list-view {
  position: absolute;
  inset: 0;
  padding: 24px;
  overflow: auto;
  overscroll-behavior: contain;
}
.sv-reading-block {
  position: relative;
  width: 100%;
  max-width: 800px;
  height: auto;
  min-height: 130px;
  margin: 0 auto 22px;
}
.sv-reading-block .sv-body {
  max-height: 560px;
}
.sv-reading-block.sv-group {
  pointer-events: auto;
}
@media (max-width: 1100px) {
  .sv-inspector {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    box-shadow: -8px 0 30px #1d294817;
  }
  .sv-outline {
    flex-basis: 190px;
    width: 190px;
  }
}
@media (max-width: 760px) {
  .sv-topbar {
    flex-wrap: wrap;
    gap: 12px;
    padding: 14px;
  }
  .sv-toptools {
    flex-basis: 100%;
  }
  .sv-heading h2 {
    font-size: 1rem;
  }
  .sv-eyebrow {
    font-size: 0.54rem;
  }
  .sv-topbar > .sv-button {
    font-size: 0.71rem;
    padding: 7px 8px;
  }
  .sv-layout {
    height: 68vh;
    min-height: 440px;
    max-height: 760px;
  }
  .sv-outline {
    position: absolute;
    inset: 0 auto 0 0;
    width: min(270px, 86%);
    box-shadow: 8px 0 30px #1d294817;
  }
  .sv-inspector {
    position: absolute;
    top: auto;
    right: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    max-height: min(70%, 65vh);
    border-top: 1px solid var(--border-color);
    border-left: 0;
    border-radius: 14px 14px 0 0;
    box-shadow: 0 -10px 30px #1d294824;
    padding: 14px 18px;
  }
  .sv-inspector .sv-comparison {
    flex-wrap: wrap;
  }
  .sv-list-view {
    padding: 18px 14px;
  }
  .sv-node-header {
    padding: 14px 15px 10px;
  }
  .sv-body {
    padding: 0 15px 18px;
    font-size: 0.86rem;
  }
  .sv-reading-block .sv-comparison {
    flex-wrap: wrap;
  }
  .sv-reading-block .sv-comparison > section {
    min-width: 100%;
  }
  .sv-reading-block .sv-comparison > section + section {
    border-left: 0;
    border-top: 1px solid var(--border-color);
    padding: 12px 0 0;
  }
  .sv-help {
    padding: 10px 14px;
    font-size: 0.65rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  .sv-shell * {
    scroll-behavior: auto !important;
  }
}