/*
 * Narrative Atlas derived graph presentations.
 * Loaded after workspace.css; every surface consumes the shared semantic tokens.
 */

.presentation-mode-control {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  grid-template-rows: auto auto;
  flex: 0 0 172px;
  align-items: center;
  min-width: 150px;
  min-height: 42px;
  padding: 3px 4px 3px 9px;
  color: var(--fg-secondary);
  background: var(--surface-raised);
  border: 1px solid var(--border-default);
  border-radius: 9px;
  gap: 0 7px;
}

.presentation-mode-control:focus-within {
  color: var(--accent-text);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.presentation-mode-control > svg {
  grid-column: 1;
  grid-row: 1 / -1;
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.65;
}

.presentation-mode-copy {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  padding: 2px 28px 0 0;
  pointer-events: none;
}

.presentation-mode-copy > span,
.presentation-mode-copy > small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.presentation-mode-copy > span {
  color: var(--fg-primary);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.presentation-mode-copy > small {
  display: block;
  color: var(--fg-muted);
  font-size: 8px;
}

.presentation-mode-control select {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 0;
  cursor: pointer;
  opacity: 0;
}

.presentation-mode-control::after {
  position: absolute;
  right: 10px;
  width: 7px;
  height: 7px;
  content: "";
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  z-index: 1;
  pointer-events: none;
  transform: rotate(45deg) translateY(-2px);
}

.presentation-mode-control {
  position: relative;
  cursor: pointer;
}

.presentation-mode-control select:focus-visible {
  outline: none;
}

.map-utility-bar.presentation-enabled {
  width: min(940px, calc(100% - 350px));
}

:root:is(
  [data-graph-presentation="orbit"],
  [data-graph-presentation="lineage"],
  [data-graph-presentation="matrix"]
) .map-utility-bar.presentation-enabled {
  right: auto;
  width: auto;
  max-width: calc(100% - 32px);
}

:root:is(
  [data-graph-presentation="orbit"],
  [data-graph-presentation="lineage"],
  [data-graph-presentation="matrix"]
) .map-utility-bar.presentation-enabled > :not(.presentation-mode-control) {
  display: none !important;
}

:root:is(
  [data-graph-presentation="orbit"],
  [data-graph-presentation="lineage"],
  [data-graph-presentation="matrix"]
) #mapWorkspace > #canvas,
:root:is(
  [data-graph-presentation="orbit"],
  [data-graph-presentation="lineage"],
  [data-graph-presentation="matrix"]
) #mapWorkspace > .view-controls,
:root:is(
  [data-graph-presentation="orbit"],
  [data-graph-presentation="lineage"],
  [data-graph-presentation="matrix"]
) #mapWorkspace > .command-dock,
:root:is(
  [data-graph-presentation="orbit"],
  [data-graph-presentation="lineage"],
  [data-graph-presentation="matrix"]
) #mapWorkspace > .color-palette {
  display: none !important;
}

.graph-presentation-layer {
  position: absolute;
  z-index: 8;
  inset: 0;
  min-width: 0;
  min-height: 0;
  padding: 82px 18px 18px;
  overflow: hidden;
  color: var(--fg-primary);
  background:
    radial-gradient(circle at 14% 12%, var(--accent-soft), transparent 30%),
    linear-gradient(145deg, var(--canvas-bg), var(--surface-base));
}

.graph-presentation-layer.hidden {
  display: none;
}

.presentation-shell {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  background: color-mix(in oklch, var(--surface-panel) 86%, transparent);
  border: 1px solid var(--border-default);
  border-radius: 16px;
  box-shadow: var(--panel-shadow);
}

.presentation-shell::before {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.78;
  pointer-events: none;
}

.presentation-header {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: end;
  justify-content: space-between;
  min-width: 0;
  padding: 17px 20px 15px;
  background: var(--surface-shell);
  border-bottom: 1px solid var(--border-subtle);
  gap: 20px;
}

.presentation-header > div:first-child {
  min-width: 0;
}

.presentation-kicker {
  display: block;
  margin-bottom: 5px;
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.presentation-header h2 {
  margin: 0;
  color: var(--fg-primary);
  font-family: var(--font-display);
  font-size: clamp(22px, 2.2vw, 30px);
  font-weight: 710;
  letter-spacing: -0.025em;
  line-height: 1.06;
}

.presentation-header p {
  max-width: 720px;
  margin: 6px 0 0;
  overflow-wrap: anywhere;
  color: var(--fg-muted);
  font-size: 11px;
  line-height: 1.55;
}

.presentation-stats {
  display: flex;
  flex: 0 1 auto;
  align-items: center;
  justify-content: flex-end;
  min-width: 0;
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  gap: 7px;
}

.presentation-stats span {
  min-height: 28px;
  padding: 6px 9px;
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  white-space: nowrap;
}

.presentation-stats span:last-child {
  max-width: min(42vw, 440px);
  overflow: hidden;
  color: var(--fg-secondary);
  text-overflow: ellipsis;
}

.presentation-stage {
  min-width: 0;
  min-height: 0;
  overflow: auto;
  scrollbar-color: var(--border-strong) transparent;
  scrollbar-width: thin;
}

.presentation-empty {
  display: grid;
  align-content: center;
  justify-items: center;
  min-height: 0;
  padding: 36px;
  text-align: center;
}

.presentation-empty > span {
  display: grid;
  width: 78px;
  height: 78px;
  margin-bottom: 18px;
  place-items: center;
  color: var(--accent-text);
  background: var(--accent-soft);
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 34px;
}

.presentation-empty h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
}

.presentation-empty p {
  max-width: 430px;
  margin: 8px 0 18px;
  color: var(--fg-muted);
  font-size: 12px;
  line-height: 1.65;
}

.presentation-empty button {
  min-height: 44px;
  padding: 0 17px;
  color: var(--on-accent);
  background: var(--accent);
  border-color: var(--accent);
  border-radius: 9px;
  font-weight: 750;
}

/* Relationship orbit ------------------------------------------------------ */

.orbit-stage {
  background:
    radial-gradient(circle at center, var(--accent-soft), transparent 39%),
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: auto, 40px 40px, 40px 40px;
}

.orbit-map {
  display: block;
  width: 100%;
  min-width: 760px;
  min-height: 540px;
  height: 100%;
  font-family: var(--font-ui);
}

.orbit-guide {
  fill: none;
  stroke: var(--border-subtle);
  stroke-dasharray: 4 9;
  stroke-width: 1;
}

.orbit-guide-inner {
  stroke: var(--border-default);
}

.orbit-guide-label {
  fill: var(--fg-faint);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.orbit-edge {
  stroke: var(--edge-neutral);
  stroke-linecap: round;
  stroke-width: 1.35;
  opacity: 0.46;
}

.orbit-edge-union {
  stroke: var(--warning);
  stroke-width: 2;
}

.orbit-edge-parent {
  stroke: var(--positive);
}

.orbit-edge-link {
  stroke: var(--edge-accent);
  stroke-dasharray: 4 5;
}

.orbit-edge.is-selected {
  stroke: var(--accent);
  stroke-width: 3;
  opacity: 1;
}

.orbit-person {
  color: var(--fg-primary);
  cursor: pointer;
  outline: none;
}

.orbit-person-halo {
  fill: var(--surface-raised);
  stroke: var(--border-default);
  stroke-width: 1.2;
  transition:
    fill 150ms var(--ease-workspace),
    stroke 150ms var(--ease-workspace),
    transform 150ms var(--ease-workspace);
}

.orbit-person-avatar {
  fill: var(--person-color);
  stroke: var(--surface-raised);
  stroke-width: 4;
}

.orbit-person:hover .orbit-person-halo {
  fill: var(--surface-hover);
  stroke: var(--border-strong);
  transform: scale(1.05);
}

.orbit-person:focus-visible .orbit-person-halo {
  fill: var(--accent-soft-strong);
  stroke: var(--focus);
  stroke-width: 3;
}

.orbit-person.is-selected .orbit-person-halo {
  fill: var(--accent-soft-strong);
  stroke: var(--accent);
  stroke-width: 2.5;
}

.orbit-person.is-center .orbit-person-halo {
  fill: var(--surface-shell);
  stroke: var(--accent);
  stroke-width: 2;
}

.orbit-person-initial,
.orbit-person-name,
.orbit-person-role {
  pointer-events: none;
  user-select: none;
}

.orbit-person-initial {
  fill: var(--node-ink);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 750;
}

.orbit-person-name {
  fill: var(--fg-primary);
  font-size: 11px;
  font-weight: 720;
}

.orbit-person-role {
  fill: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 8px;
}

/* Lineage scroll ---------------------------------------------------------- */

.lineage-stage {
  padding: 18px;
  background:
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px) 0 0 / 28px 100%,
    var(--surface-base);
}

.lineage-board {
  display: grid;
  grid-auto-columns: minmax(252px, 1fr);
  grid-auto-flow: column;
  align-items: stretch;
  width: max-content;
  min-width: 100%;
  min-height: 100%;
  gap: 14px;
}

.lineage-generation {
  position: relative;
  min-width: 252px;
  padding: 13px;
  background: var(--surface-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}

.lineage-generation:not(:last-child)::after {
  position: absolute;
  z-index: 2;
  top: 34px;
  right: -11px;
  width: 7px;
  height: 7px;
  content: "";
  border-top: 1.5px solid var(--accent);
  border-right: 1.5px solid var(--accent);
  transform: rotate(45deg);
}

.lineage-generation > header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  min-height: 55px;
  margin-bottom: 10px;
  padding: 2px 4px 10px;
  border-bottom: 1px solid var(--border-subtle);
}

.lineage-generation > header > span {
  grid-column: 1 / -1;
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.lineage-generation h3 {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: 18px;
}

.lineage-generation header small {
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 9px;
}

.lineage-cards {
  display: grid;
  align-content: start;
  gap: 8px;
}

.lineage-person {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 20px;
  align-items: center;
  width: 100%;
  min-height: 94px;
  padding: 10px;
  color: var(--fg-secondary);
  text-align: left;
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 9px;
  box-shadow: 0 6px 18px color-mix(in oklch, var(--shadow-color) 44%, transparent);
  gap: 9px;
  transition:
    color 150ms var(--ease-workspace),
    background-color 150ms var(--ease-workspace),
    border-color 150ms var(--ease-workspace),
    transform 90ms var(--ease-workspace);
}

.lineage-person::before {
  position: absolute;
  top: 9px;
  bottom: 9px;
  left: 0;
  width: 3px;
  content: "";
  background: var(--person-color);
  border-radius: 0 3px 3px 0;
}

.lineage-person:hover {
  color: var(--fg-primary);
  background: var(--surface-hover);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.lineage-person:active {
  transform: scale(0.985);
}

.lineage-person.is-selected {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.lineage-avatar {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--node-ink);
  background: var(--person-color);
  border: 2px solid var(--surface-raised);
  border-radius: 9px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 750;
  box-shadow: 0 0 0 1px var(--border-default);
}

.lineage-person-copy {
  display: grid;
  min-width: 0;
  gap: 3px;
}

.lineage-person-copy strong,
.lineage-person-copy small,
.lineage-person-copy em {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lineage-person-copy strong {
  color: var(--fg-primary);
  font-size: 13px;
}

.lineage-person-copy small {
  color: var(--fg-secondary);
  font-size: 10px;
}

.lineage-person-copy em {
  color: var(--fg-muted);
  font-size: 9px;
  font-style: normal;
}

.lineage-open {
  color: var(--fg-faint);
  font-size: 14px;
}

/* Relationship matrix ---------------------------------------------------- */

.matrix-stage {
  padding: 16px;
  background: var(--surface-base);
}

.matrix-scroll {
  max-width: 100%;
  height: 100%;
  overflow: auto;
  background: var(--surface-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 11px;
  overscroll-behavior: contain;
}

.relationship-matrix {
  width: max-content;
  min-width: 100%;
  border-spacing: 0;
  color: var(--fg-secondary);
  background: var(--surface-panel);
  font-size: 10px;
}

.relationship-matrix th,
.relationship-matrix td {
  min-width: 76px;
  height: 54px;
  padding: 3px;
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.relationship-matrix thead th {
  position: sticky;
  z-index: 5;
  top: 0;
  background: var(--surface-shell);
}

.relationship-matrix tbody th {
  position: sticky;
  z-index: 4;
  left: 0;
  min-width: 150px;
  background: var(--surface-shell);
}

.relationship-matrix .matrix-corner {
  z-index: 7;
  left: 0;
  min-width: 150px;
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.matrix-person,
.matrix-cell {
  width: 100%;
  min-width: 0;
  min-height: 46px;
  padding: 5px;
  color: var(--fg-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
}

.matrix-person:hover,
.matrix-cell:hover {
  color: var(--fg-primary);
  background: var(--surface-hover);
  border-color: var(--border-default);
}

.matrix-person.is-selected,
.matrix-cell.is-selected {
  color: var(--accent-text);
  background: var(--accent-soft-strong);
  border-color: var(--accent);
}

.matrix-column-person {
  display: grid;
  justify-items: center;
  gap: 2px;
}

.matrix-column-person > span {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  color: var(--on-accent);
  background: var(--accent);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 11px;
}

.matrix-column-person small {
  max-width: 66px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.matrix-row-person {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  align-items: center;
  text-align: left;
  gap: 8px;
}

.matrix-person-dot {
  width: 8px;
  height: 28px;
  background: var(--person-color);
  border-radius: 5px;
}

.matrix-row-person > span:last-child {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.matrix-row-person strong,
.matrix-row-person small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.matrix-row-person strong {
  color: var(--fg-primary);
  font-size: 11px;
}

.matrix-row-person small {
  color: var(--fg-muted);
  font-size: 8px;
}

.matrix-cell {
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.2;
}

.matrix-cell span {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.matrix-cell-empty {
  color: var(--fg-muted);
}

.matrix-cell-self {
  color: var(--fg-muted);
  background: var(--surface-control);
}

.matrix-cell-union {
  color: var(--warning);
  background: var(--warning-soft);
}

.matrix-cell-parent {
  color: var(--positive);
  background: var(--positive-soft);
}

.matrix-cell-coparent {
  color: var(--accent-text);
  background: var(--accent-soft);
}

.matrix-cell-link {
  color: var(--edge-accent);
  background: var(--accent-soft);
}

/* Heritage skins reuse the same structure but speak through material. */

:root[data-theme="ink"] .graph-presentation-layer,
:root[data-theme="celadon"] .graph-presentation-layer {
  background:
    radial-gradient(ellipse at 18% 10%, var(--accent-soft-strong), transparent 35%),
    repeating-linear-gradient(0deg, transparent 0 5px, var(--border-subtle) 5px 6px),
    var(--canvas-bg);
}

:root[data-theme="ink"] .presentation-shell,
:root[data-theme="celadon"] .presentation-shell {
  border-radius: 5px 14px 5px 14px;
}

:root[data-theme="ink"] .presentation-shell::before {
  right: 18px;
  left: auto;
  width: 38px;
  height: 5px;
  background: var(--danger);
  opacity: 0.9;
}

:root[data-theme="vermilion"] .presentation-shell {
  border-color: var(--accent);
  box-shadow:
    0 0 0 3px var(--surface-base),
    0 0 0 4px var(--border-strong),
    var(--panel-shadow);
}

:root[data-theme="vermilion"] .presentation-header,
:root[data-theme="vermilion"] .lineage-generation,
:root[data-theme="vermilion"] .matrix-scroll {
  border-color: var(--border-strong);
}

:root[data-theme="dunhuang"] .graph-presentation-layer {
  background:
    radial-gradient(circle at 12% 16%, var(--danger-soft), transparent 25%),
    radial-gradient(circle at 88% 80%, var(--positive-soft), transparent 30%),
    var(--canvas-bg);
}

:root[data-theme="dunhuang"] .presentation-shell {
  border-radius: 18px 5px 18px 5px;
}

:root[data-theme="dunhuang"] .orbit-guide {
  stroke-dasharray: 2 7;
}

@media (max-width: 1180px) {
  .map-utility-bar.presentation-enabled {
    width: auto;
  }

  .presentation-mode-control {
    flex-basis: 158px;
  }

  .presentation-header p {
    max-width: 560px;
  }
}

@media (max-width: 820px) {
  .map-utility-bar.presentation-enabled .presentation-mode-control {
    grid-column: 1 / -1;
    width: min(220px, 100%);
    min-width: 0;
  }

  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled {
    grid-template-areas:
      "present present focus batch"
      "search tag saved saved";
    grid-template-columns: minmax(120px, 1fr) minmax(92px, 0.7fr) 44px 44px;
    min-height: 98px;
  }

  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled .presentation-mode-control {
    grid-area: present;
    width: 100%;
  }

  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled .map-filter-search {
    grid-area: search;
  }

  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled .map-tag-filter {
    grid-area: tag;
  }

  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled #focusConnections {
    grid-area: focus;
  }

  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled #batchSelection {
    grid-area: batch;
  }

  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled .saved-view-control {
    grid-area: saved;
    width: 88px;
    justify-self: end;
  }

  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled #graphFilterCount {
    top: calc(100% + 4px);
  }

  :root[data-graph-presentation="canvas"] .view-controls {
    top: 118px;
  }

  :root:is(
    [data-graph-presentation="orbit"],
    [data-graph-presentation="lineage"],
    [data-graph-presentation="matrix"]
  ) .map-utility-bar.presentation-enabled {
    display: flex;
    min-height: 52px;
  }

  .graph-presentation-layer {
    padding: 70px 9px 9px;
  }

  .presentation-header {
    align-items: start;
    padding: 14px;
  }

  .presentation-header p {
    max-width: 460px;
  }

  .presentation-stats {
    display: grid;
    justify-items: end;
  }

  .presentation-stats span:last-child {
    max-width: 34vw;
  }

  .lineage-stage,
  .matrix-stage {
    padding: 10px;
  }
}

@media (max-width: 560px) {
  .presentation-mode-control {
    flex-basis: 100%;
  }

  .presentation-header {
    display: grid;
    gap: 10px;
  }

  .presentation-kicker,
  .presentation-header p {
    display: none;
  }

  .presentation-header h2 {
    font-size: 21px;
  }

  .presentation-stats {
    display: flex;
    justify-content: flex-start;
  }

  .presentation-stats span:last-child {
    max-width: 62vw;
  }

  .orbit-map {
    min-width: 700px;
  }

  .lineage-board {
    grid-auto-columns: 236px;
  }

  .lineage-generation {
    min-width: 236px;
  }

  .relationship-matrix tbody th,
  .relationship-matrix .matrix-corner {
    min-width: 126px;
  }
}

@media (max-width: 460px) {
  :root[data-graph-presentation="canvas"] .map-utility-bar.presentation-enabled {
    grid-template-columns: minmax(108px, 1fr) minmax(82px, 0.72fr) 44px 44px;
  }

  .map-utility-bar.presentation-enabled .presentation-mode-control {
    min-height: 44px;
  }

  .graph-presentation-layer {
    padding: 66px 6px 6px;
  }

  .presentation-shell {
    border-radius: 11px;
  }

  .presentation-header {
    padding: 12px;
  }

  .presentation-stats span {
    min-height: 26px;
    padding: 5px 7px;
  }

  .lineage-stage,
  .matrix-stage {
    padding: 7px;
  }
}

@media (pointer: coarse) {
  .presentation-mode-control,
  .presentation-mode-control select,
  .lineage-person,
  .matrix-person,
  .matrix-cell,
  .presentation-empty button {
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-person-halo,
  .lineage-person {
    transition-duration: 0.01ms !important;
  }
}