/*
 * Systems Atlas. Loads after styles/site.css and uses only its tokens (--paper, --ink, --accent,
 * --gold, --line, --radius, spacing and type scale). Header, footer, theme and type come from the
 * site; this file holds only what the Atlas adds. Gold is the one accent: the selected state and
 * thin rules, never text.
 */

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Work-in-progress notice, directly under the header */
.atlas-notice {
  max-width: none;
  padding: var(--space-3) 20px;
  border-bottom: 1px solid var(--gold);
  background: var(--accent-strong);
  color: var(--on-accent);
  font-size: var(--text-body);
  text-align: center;
}

/* Page frame */
.atlas-main,
.record-main {
  width: var(--shell);
  margin-inline: auto;
  padding: var(--space-12) 0 var(--space-24);
}

.atlas-intro {
  display: grid;
  margin-bottom: var(--space-8);
  gap: var(--space-3);
}

body[data-atlas-stage="map"] .atlas-intro p {
  display: none;
}

body[data-atlas-stage="map"] .atlas-main {
  padding-top: var(--space-4);
}

body[data-atlas-stage="map"] .atlas-intro {
  margin-bottom: var(--space-3);
}

body[data-atlas-stage="map"] .atlas-intro h1 {
  font-size: var(--text-h3);
}

/* Journeys */
.journey-deck {
  display: grid;
  margin-bottom: var(--space-12);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8) var(--space-6);
}

body[data-atlas-stage="map"] .journey-deck {
  display: none;
}

.journey-card {
  display: grid;
  align-content: start;
  gap: var(--space-3);
  color: var(--ink);
  text-decoration: none;
}

.journey-card picture {
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 2px solid transparent;
  border-radius: var(--radius);
  background: var(--paper-tint);
}

.journey-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.journey-card-title {
  font-size: var(--text-h2);
}

.journey-card p {
  color: var(--ink-soft);
}

.journey-card:hover picture,
.journey-card:focus-visible picture {
  border-color: var(--gold);
}

.journey-card:hover .journey-card-title {
  color: var(--accent);
}

.photo-credit {
  color: var(--ink-soft);
  font-size: var(--text-small);
}

/* Explorer */
.atlas-workspace {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
  isolation: isolate;
  overflow: hidden;
}

body[data-atlas-stage="map"] .atlas-workspace {
  height: calc(100dvh - 220px);
  min-height: 560px;
}

body[data-atlas-stage="cards"] .atlas-workspace {
  grid-template-rows: auto;
}

body[data-atlas-stage="cards"] .atlas-field,
body[data-atlas-stage="cards"] .journey-trail {
  display: none;
}

html:not(.js) .atlas-workspace {
  display: none;
}

.scene-toolbar {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: auto minmax(180px, 1.5fr) auto minmax(130px, 0.6fr) auto minmax(130px, 0.6fr) auto auto auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-bottom: 1px solid var(--line);
}

body[data-atlas-stage="cards"] .scene-toolbar {
  border-bottom: 0;
}

.scene-toolbar label {
  font-weight: 700;
}

.scene-toolbar input,
.scene-toolbar select,
.record-directory input {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 0 var(--space-3);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.scene-toolbar button,
.journey-trail button,
.record-directory button,
.zoom-controls button,
.trail-record,
.dossier-close {
  min-width: 44px;
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-weight: 600;
  cursor: pointer;
}

.scene-toolbar button:hover,
.journey-trail button:hover,
.record-directory button:hover,
.zoom-controls button:hover,
.trail-record:hover,
.dossier-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.scene-toolbar [data-surprise] {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  color: var(--on-accent);
}

.scene-toolbar [data-surprise]:hover {
  border-color: var(--accent-hover);
  background: var(--accent-hover);
  color: var(--on-accent);
}

.scene-toolbar [data-clear] {
  border-color: transparent;
  background: transparent;
  color: var(--accent);
}

.result-count {
  max-width: none;
  color: var(--ink-soft);
}

.journey-trail button:disabled {
  opacity: 0.45;
  cursor: default;
}

/* Graph field */
.atlas-field {
  position: relative;
  grid-row: 2;
  grid-column: 1;
  min-height: 0;
  overflow: hidden;
}

.field-heading {
  position: absolute;
  z-index: 6;
  top: var(--space-4);
  right: var(--space-4);
  left: var(--space-4);
  pointer-events: none;
}

.field-heading p {
  max-width: none;
  font-weight: 700;
}

.graph {
  position: absolute;
  inset: 0;
  touch-action: none;
}

.graph svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.journey-link-layer path,
.neighborhood-link-layer path {
  fill: none;
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-width: 2;
  opacity: 0.7;
  vector-effect: non-scaling-stroke;
}

.neighborhood-link-layer path {
  stroke: var(--line-strong);
  opacity: 1;
}

.journey-link-layer text,
.neighborhood-link-layer text {
  fill: var(--ink-soft);
  font-size: 0.8125rem;
  font-weight: 600;
  paint-order: stroke;
  stroke: var(--paper-raised);
  stroke-linejoin: round;
  stroke-width: 5px;
  text-anchor: middle;
}

.journey-link-layer text {
  display: none;
}

.atlas-node {
  cursor: pointer;
  transition: opacity 0.22s ease;
}

.atlas-node .node-halo {
  fill: var(--paper-raised);
  stroke: var(--line-strong);
  stroke-width: 1.4;
}

.atlas-node .node-core {
  fill: var(--accent);
  stroke: var(--paper-raised);
  stroke-width: 2;
}

.atlas-node.type-education .node-core {
  fill: color-mix(in srgb, var(--accent) 70%, var(--ink));
}

.atlas-node.type-program .node-core {
  fill: color-mix(in srgb, var(--accent) 55%, var(--paper-raised));
}

.atlas-node.type-publication .node-core {
  fill: var(--ink);
}

.atlas-node.type-talk .node-core {
  fill: var(--ink-soft);
}

.atlas-node.type-course .node-core {
  fill: color-mix(in srgb, var(--accent) 30%, var(--paper-raised));
  stroke: var(--accent);
}

.atlas-node.type-expertise .node-core {
  fill: var(--paper-raised);
  stroke: var(--ink-soft);
}

.atlas-node .node-label {
  fill: var(--ink);
  font-size: 0.8125rem;
  font-weight: 600;
  paint-order: stroke;
  stroke: var(--paper-raised);
  stroke-linejoin: round;
  stroke-width: 5px;
  pointer-events: none;
}

.atlas-node:hover .node-halo,
.atlas-node:focus-visible .node-halo {
  stroke: var(--accent);
  stroke-width: 3;
}

.atlas-node:focus-visible {
  outline: none;
}

.atlas-node.is-selected .node-halo {
  fill: var(--accent);
  stroke: var(--gold);
  stroke-width: 3;
}

.atlas-node.is-selected .node-core {
  fill: var(--paper-raised);
}

.atlas-node.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.atlas-node.is-dimmed {
  opacity: 0.16;
}

.fit-short {
  display: none;
}

.zoom-controls {
  position: absolute;
  z-index: 12;
  top: 56px;
  left: var(--space-4);
  display: flex;
  gap: var(--space-2);
}

/* Journey trail */
.journey-trail {
  position: relative;
  z-index: 22;
  grid-row: 2;
  grid-column: 1;
  align-self: end;
  display: grid;
  margin: var(--space-4);
  grid-template-columns: minmax(150px, 0.72fr) minmax(0, 2fr) auto auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--line-strong);
  border-top: 2px solid var(--gold);
  border-radius: var(--radius);
  background: var(--paper-raised);
}

.journey-trail > div:first-child {
  display: grid;
  gap: var(--space-1);
}

.journey-trail p {
  max-width: none;
  font-weight: 700;
}

[data-trail-lens] {
  display: none;
}

[data-trail-steps] strong {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (min-width: 721px) {
  .journey-trail:has(~ .dossier[data-open="true"]) {
    margin-right: calc(min(420px, 40%) + var(--space-4));
  }
}

[data-trail-steps] {
  display: flex;
  gap: var(--space-2);
  min-width: 0;
  overflow-x: auto;
}

[data-trail-steps] button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: var(--space-2);
  text-align: left;
}

[data-trail-steps] button[aria-pressed="true"] {
  border-color: var(--gold);
  box-shadow: inset 0 -3px 0 var(--gold);
}

/* Dossier */
.dossier {
  position: relative;
  z-index: 30;
  grid-row: 2;
  grid-column: 1;
  justify-self: end;
  width: min(420px, 40%);
  height: 100%;
  overflow: auto;
  padding: 72px var(--space-6) var(--space-8);
  border-left: 1px solid var(--line);
  background: var(--paper-raised);
  transform: translateX(calc(100% + 2px));
  opacity: 0;
  pointer-events: none;
  transition: transform 0.35s ease, opacity 0.2s ease;
}

.dossier[data-open="true"] {
  transform: none;
  opacity: 1;
  pointer-events: auto;
}

.dossier-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  display: grid;
  place-items: center;
  padding: 0;
}

.dossier h2 {
  font-size: var(--text-h3);
}

.dossier h3 {
  margin-top: var(--space-6);
  font-size: var(--text-body);
}

.dossier p {
  margin-top: var(--space-2);
}

.dossier-meta,
.dossier-organization {
  color: var(--ink-soft);
}

.dossier-lens {
  padding-top: var(--space-3);
  border-top: 1px solid var(--gold);
}

.dossier-sources {
  display: grid;
  gap: var(--space-1);
}

.dossier-sources a {
  display: flex;
  min-height: 44px;
  align-items: center;
}

.dossier-primary {
  display: inline-flex;
  min-height: 44px;
  margin-top: var(--space-4);
  align-items: center;
  font-weight: 700;
}

.dossier-trail {
  display: grid;
  margin-top: var(--space-2);
  gap: var(--space-2);
}

.trail-record {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  text-align: left;
  font-weight: 400;
}

.trail-record span,
.trail-record small {
  color: var(--ink-soft);
  font-size: var(--text-body);
}

.trail-record strong {
  color: var(--ink);
}

/* Directory */
.record-directory {
  position: absolute;
  z-index: 40;
  inset: 0;
  overflow: auto;
  padding: var(--space-6);
  background: var(--paper-raised);
}

.record-directory > header {
  display: flex;
  margin-bottom: var(--space-4);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.record-directory > label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 700;
}

.directory-list {
  display: grid;
  margin-top: var(--space-6);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-8);
}

.directory-record {
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
}

.directory-record h3 a {
  display: block;
  padding-block: var(--space-2);
}

.directory-record p {
  color: var(--ink-soft);
}

.empty-state {
  display: grid;
  margin-top: var(--space-6);
  justify-items: start;
  gap: var(--space-4);
}

.noscript-atlas {
  display: grid;
  gap: var(--space-4);
}

.record-sheet > header {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.record-sheet h1 {
  font-size: var(--text-h2);
}

.record-meta {
  color: var(--ink-soft);
}

.record-lede {
  font-size: var(--text-lead);
  line-height: 1.45;
}

.record-lens {
  padding-left: var(--space-4);
  border-left: 2px solid var(--gold);
}

.atlas-neighborhood-link,
.record-back a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.record-back {
  margin-bottom: var(--space-8);
}

.source-plate,
.record-notes {
  display: grid;
  margin: 0 0 var(--space-8);
  gap: var(--space-4);
}

.source-plate div,
.record-notes {
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
}

.source-plate dt,
.record-notes dt {
  font-weight: 700;
}

.source-plate dd,
.record-notes dd {
  margin: 0;
}

.record-notes {
  margin-top: var(--space-4);
}

.record-sheet section {
  margin-bottom: var(--space-8);
}

.record-sheet section h2 {
  margin-bottom: var(--space-3);
  font-size: var(--text-h3);
}

.source-links {
  display: grid;
  gap: var(--space-1);
}

.source-links a {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: var(--space-2);
}

section.conversation {
  display: grid;
  padding-top: var(--space-6);
  border-top: 1px solid var(--line);
  justify-items: start;
  gap: var(--space-4);
}

/* Narrow screens */
@media (max-width: 900px) {
  .journey-deck {
    grid-template-columns: 1fr;
  }

  .scene-toolbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .scene-toolbar label:first-of-type,
  .scene-toolbar input {
    grid-column: 1 / -1;
  }

  .scene-toolbar [data-clear],
  .scene-toolbar .result-count {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .atlas-main,
  .record-main {
    padding-top: var(--space-8);
    padding-bottom: var(--space-16);
  }

  body[data-atlas-stage="map"] .atlas-workspace {
    height: calc(100dvh - 120px);
    min-height: 600px;
  }

  .scene-toolbar {
    gap: var(--space-2);
    padding: var(--space-3);
  }

  .scene-toolbar label {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .scene-toolbar input {
    grid-column: 1 / -1;
  }

  .scene-toolbar button {
    padding-inline: var(--space-2);
  }

  [data-trail-progress] {
    display: none;
  }

  .journey-trail button {
    padding-inline: var(--space-3);
  }

  .journey-trail {
    margin: var(--space-3);
    grid-template-columns: 1fr auto auto;
    gap: var(--space-2);
    padding: var(--space-3);
  }

  [data-trail-steps] {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .zoom-controls {
    top: auto;
    right: var(--space-2);
    bottom: 150px;
    left: auto;
  }

  .fit-long {
    display: none;
  }

  .fit-short {
    display: inline;
  }

  .dossier {
    position: fixed;
    z-index: 80;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: min(74dvh, 700px);
    padding: 72px var(--space-4) calc(var(--space-6) + env(safe-area-inset-bottom));
    border-top: 2px solid var(--gold);
    border-left: 0;
    border-radius: var(--radius) var(--radius) 0 0;
    transform: translateY(calc(100% + 24px));
    transition: opacity 0.2s ease;
  }

  .record-directory {
    position: fixed;
    z-index: 90;
    padding: var(--space-4) var(--space-4) calc(var(--space-8) + env(safe-area-inset-bottom));
  }

  .directory-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0s !important;
    animation-delay: 0s !important;
    transition-duration: 0s !important;
    scroll-behavior: auto !important;
  }
}