/* Journey map styles. Colors, fonts and sizes come only from /shared/tokens.css.
   Three text sizes: --text-xl for titles, --text-md for everything else, --text-sm for notes. */

*, *::before, *::after { box-sizing: border-box; }
html { color-scheme: light; }
body { margin: 0; background: var(--color-bg); color: var(--color-text); font-family: var(--font-sans); font-size: var(--text-md); line-height: var(--leading-body); }
h1, h2, h3 { font-size: var(--text-md); line-height: var(--leading-heading); margin: 0 0 var(--space-2); }
h1 { font-size: var(--text-xl); margin-block-end: var(--space-1); }
p { margin: 0 0 var(--space-3); max-width: var(--measure); }
a { color: var(--color-brand); }
img { max-width: 100%; height: auto; display: block; }
[hidden] { display: none !important; }
:focus-visible { outline: var(--focus-ring); outline-offset: var(--space-1); }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; inset-inline-start: var(--space-4); inset-block-start: calc(-1 * var(--space-16)); background: var(--color-brand); color: var(--color-on-brand); padding: var(--space-2) var(--space-4); border-radius: var(--radius); z-index: 30; }
.skip-link:focus { inset-block-start: var(--space-2); }
.note { font-size: var(--text-sm); color: var(--color-text-muted); }

main { padding: var(--space-6); min-width: 0; }

/* Top of the page */
.top { margin-block-end: var(--space-4); }
.layout { display: grid; grid-template-columns: 18rem minmax(0, 1fr); grid-template-rows: auto 1fr; grid-template-areas: "side head" "side main"; align-items: stretch; min-height: 100vh; }
.layout > .sidebar { grid-area: side; }
.layout > .top { grid-area: head; padding: var(--space-6) var(--space-6) 0; }
.layout > main { grid-area: main; padding-block-start: 0; }
.feedback { font-weight: bold; }
.how-narrow { display: none; }
.sidebar { background: var(--color-surface); border-inline-end: 1px solid var(--color-border); }
.sidebar-inner { padding: var(--space-6) var(--space-4); }
.person { margin-block-start: var(--space-6); padding: var(--space-4); background: var(--color-bg); border-inline-start: var(--highlight-bar); border-radius: var(--radius); }
.person h2 { margin-block-end: var(--space-3); }
.person dl { margin: 0; }
.person dt { font-weight: bold; }
.person dd { margin: 0 0 var(--space-3); }
.person .note { margin: 0; }

.tabs { border: 0; margin: 0; padding: 0; }
.tabs legend { font-weight: bold; padding: 0; margin-block-end: var(--space-2); }
.tab-list { display: grid; gap: var(--space-2); }
.tab { display: flex; align-items: center; gap: var(--space-3); cursor: pointer; padding: var(--space-1) var(--space-3); border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); }
.tab { min-block-size: var(--space-16); }
.tab:hover { border-color: var(--color-brand); }
.tab-icon { display: flex; flex: none; inline-size: var(--space-6); block-size: var(--space-6); color: var(--color-text-muted); }
.tab-icon svg { inline-size: 100%; block-size: 100%; }
.tab:has(input:checked) .tab-icon { color: var(--color-brand); }
.tab:has(input:checked) { border-color: var(--color-brand); box-shadow: inset 0 0 0 1px var(--color-brand); font-weight: bold; }
.tab:has(input:focus-visible) { outline: var(--focus-ring); outline-offset: var(--space-1); }
.group-who { margin: var(--space-2) 0 0; max-width: none; }
.group-who:empty { display: none; }

.key { list-style: none; margin: var(--space-4) 0 0; padding: 0; display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-6); font-size: var(--text-sm); }
.key li { display: flex; align-items: center; gap: var(--space-2); }
.key-box { display: inline-block; inline-size: var(--space-8); block-size: var(--space-6); border-radius: var(--radius); background: var(--color-bg); }
.key-alt { border: 1px dashed var(--color-text-muted); }
.key-end { background: var(--color-surface); border: 1px solid var(--color-text-muted); }
.key-suny { background: var(--color-surface); border-inline-start: var(--highlight-bar); border-radius: 0; }
.key-mark { display: inline-block; inline-size: var(--space-1); block-size: var(--space-4); background: var(--color-highlight); }
.key-arrow { display: inline-block; inline-size: var(--space-6); border-block-start: 2px solid var(--color-brand); position: relative; }
.key-arrow::after { content: ""; position: absolute; inset-inline-end: 0; inset-block-start: calc(-1 * var(--space-1) - 1px); border-inline-start: 6px solid var(--color-brand); border-block: 4px solid transparent; }
#page-how { color: var(--color-text-muted); }

/* Items */
.cell { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.cell.path-cell { gap: var(--space-4); }
.box, .text-line { display: block; width: 100%; text-align: start; font: inherit; color: var(--color-text); cursor: pointer; }
.box { background: var(--color-bg); border: 1px solid var(--color-text-muted); border-radius: var(--radius); padding: var(--space-2) var(--space-3); }
.box.is-main { border: 2px solid var(--color-brand); }
.box.is-alt { border: 1px dashed var(--color-text-muted); }
.box.is-end { background: var(--color-surface); }
.box:hover { box-shadow: inset 0 0 0 1px var(--color-brand); }
.text-line { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-2) var(--space-3); }
.text-line:hover { box-shadow: inset 0 0 0 1px var(--color-brand); }
.text-line.is-question { font-style: italic; }
.is-group { border-inline-start: 4px solid var(--color-highlight); padding-inline-start: var(--space-2); }
.box.is-group { padding-inline-start: var(--space-3); }
.group-label { display: block; font-size: var(--text-sm); font-weight: bold; }
.step-num { display: inline-grid; place-items: center; float: inline-start; inline-size: var(--space-6); block-size: var(--space-6); margin: 0 var(--space-2) 0 0; border-radius: 50%; border: 2px solid var(--color-brand); color: var(--color-brand); font-size: var(--text-sm); font-weight: bold; }
.key-num { display: grid; place-items: center; inline-size: var(--space-6); block-size: var(--space-6); border: 2px solid var(--color-brand); border-radius: 50%; font-size: var(--text-sm); font-weight: bold; color: var(--color-brand); }
.is-selected { box-shadow: inset 0 0 0 2px var(--color-brand); }

/* Wide screens: lanes */
.grid-scroll { overflow-x: auto; position: relative; scrollbar-width: none; }
.grid-scroll::-webkit-scrollbar { display: none; }
/* One sideways scrollbar, pinned to the bottom of the window while the map is on screen. */
.hscroll { position: sticky; inset-block-end: 0; z-index: 3; overflow-x: auto; background: var(--color-bg); border-block-start: 1px solid var(--color-border); }
.hscroll::-webkit-scrollbar { height: var(--space-3); }
.hscroll::-webkit-scrollbar-track { background: var(--color-surface); }
.hscroll::-webkit-scrollbar-thumb { background: var(--color-text-muted); border-radius: var(--radius); }
#hscroll-inner { block-size: 1px; }
.scroll-cue { display: flex; align-items: center; justify-content: flex-end; gap: var(--space-3); margin-block-end: var(--space-2); font-size: var(--text-sm); color: var(--color-text-muted); }
.scroll-btn { font: inherit; font-weight: bold; cursor: pointer; color: var(--color-brand); background: var(--color-bg); border: 1px solid var(--color-brand); border-radius: var(--radius); padding: var(--space-1) var(--space-3); }
.scroll-btn:disabled { color: var(--color-text-muted); border-color: var(--color-border); cursor: default; }
.flow { position: absolute; inset-block-start: 0; inset-inline-start: 0; pointer-events: none; z-index: 0; overflow: visible; }
.flow-line { fill: none; stroke-width: 2; }
.flow-line.is-main { stroke: var(--color-brand); }
.flow-line.is-branch { stroke: var(--color-text-muted); stroke-dasharray: 5 4; }
.flow-line.is-related { stroke-width: 3.5; }
.arrow-main { fill: var(--color-brand); }
.arrow-branch { fill: var(--color-text-muted); }
.grid { position: relative; z-index: 1; width: 100%; min-width: 110rem; table-layout: fixed; border-collapse: collapse; }
.grid th, .grid td { padding-inline-end: var(--space-8); }
.grid thead td { width: 8rem; }
.grid thead th { position: relative; text-align: start; vertical-align: bottom; padding-block: 0 var(--space-3); }
.grid thead th .stage-line { padding-block-end: var(--space-2); border-block-end: 2px solid var(--color-brand); }
.stage-next { position: absolute; inset-inline-end: var(--space-1); inset-block-end: var(--space-4); inline-size: var(--space-6); border-block-start: 2px solid var(--color-brand); }
.stage-next::after { content: ""; position: absolute; inset-inline-end: 0; inset-block-start: calc(-1 * var(--space-1) - 2px); border-inline-start: 8px solid var(--color-brand); border-block: 5px solid transparent; }
.stage-line { display: flex; align-items: center; gap: var(--space-2); }
.stage-n { display: inline-grid; place-items: center; inline-size: var(--space-6); block-size: var(--space-6); border-radius: 50%; background: var(--color-brand); color: var(--color-on-brand); font-size: var(--text-sm); font-weight: bold; flex: none; }
.grid tbody th { text-align: start; vertical-align: top; font-weight: bold; padding-block: var(--space-4); position: sticky; inset-inline-start: 0; z-index: 2; background: var(--color-bg); }
.grid thead td { position: sticky; inset-inline-start: 0; z-index: 2; background: var(--color-bg); }
.grid tbody .lane-suny th { background: var(--color-surface); }
.grid tbody td { vertical-align: top; padding-block: var(--space-4); }
.lane + .lane > * { border-block-start: 1px dashed var(--color-text-muted); }

.lane-end th { color: var(--color-text-muted); }
.lane-suny > * { background: var(--color-surface); }
.lane-suny th { border-inline-start: var(--highlight-bar); padding-inline-start: var(--space-2); }
.lane-suny th, .lane-suny td { padding-block: var(--space-4); }

/* Narrow screens: stages stacked */
.stacked { display: none; }
.stack-stage { margin-block-end: var(--space-8); }
.stack-title { display: flex; align-items: center; gap: var(--space-2); padding-block-end: var(--space-2); border-block-end: 2px solid var(--color-brand); margin-block-end: var(--space-3); }
.stack-lane { padding-block: var(--space-3); border-block-start: 1px dashed var(--color-text-muted); }
.stack-lane:first-of-type, .stack-lane.lane-end { border-block-start: 0; }
.stack-lane.lane-suny { padding: var(--space-3); background: var(--color-surface); border-inline-start: var(--highlight-bar); }

.next { margin-block: var(--space-6) var(--space-8); font-weight: bold; max-width: none; }

/* Footer */
.footer { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(18rem, 100%), 1fr)); gap: var(--space-8); padding-block-start: var(--space-6); border-block-start: 1px solid var(--color-border); font-size: var(--text-sm); }
.footer h2 { margin-block-start: var(--space-4); }
.footer h2:first-child { margin-block-start: 0; }
.not-in-map { margin: 0; padding-inline-start: var(--space-4); display: grid; gap: var(--space-2); }
.glossary { display: grid; grid-template-columns: max-content 1fr; gap: var(--space-2) var(--space-4); margin: 0; }
.glossary dt { font-weight: bold; }
.glossary dd { margin: 0; }
.footer h3 { font-size: var(--text-sm); margin: var(--space-3) 0 var(--space-1); }
.source-list li:target, .footer h3:target { background: var(--color-surface); outline: 2px solid var(--color-brand); }
.source-list { margin: 0 0 var(--space-3); padding-inline-start: var(--space-4); color: var(--color-text-muted); }

/* Detail panel */
.panel { position: fixed; inset-block: 0; inset-inline-end: 0; z-index: 20; width: min(30rem, 100%); background: var(--color-bg); border-inline-start: 1px solid var(--color-text-muted); overflow-y: auto; }
.panel-inner { padding: var(--space-6); }
.panel-close { float: inline-end; font: inherit; font-weight: bold; cursor: pointer; background: var(--color-bg); color: var(--color-brand); border: 1px solid var(--color-brand); border-radius: var(--radius); padding: var(--space-1) var(--space-3); }
.panel h2 { font-size: var(--text-xl); padding-inline-end: var(--space-16); margin-block-end: var(--space-4); }
.panel h2:focus { outline: none; }
.panel-kicker { font-size: var(--text-sm); color: var(--color-text-muted); margin: 0 0 var(--space-1); }
.panel-section { margin-block: var(--space-6); }
.panel ul.plain { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-3); }
.src-type { display: block; font-size: var(--text-sm); font-weight: bold; color: var(--color-text-muted); }
.stage-summary { margin: 0; font-size: var(--text-sm); color: var(--color-text-muted); }
.grid tbody .lane-summary > * { padding-block: var(--space-2) var(--space-4); }
.stack-stage > .stage-summary { margin-block-end: var(--space-4); }
.cite { display: block; font-size: var(--text-sm); color: var(--color-text-muted); }
.link-button { font: inherit; color: var(--color-brand); background: none; border: 0; padding: 0; text-decoration: underline; cursor: pointer; text-align: start; }
.panel figure { margin: var(--space-4) 0 0; }
.panel figure a { display: block; border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
.panel figcaption { font-size: var(--text-sm); color: var(--color-text-muted); margin-block-start: var(--space-1); }

.nav-toggle { display: none; }
/* Wide screens: the side panel can collapse to a strip of group icons. */
@media (min-width: 64.01rem) {
  .layout { transition: grid-template-columns 0.2s ease; }
  .sidebar { position: relative; }
  .sidebar-inner { padding-block-start: var(--space-12); }
  /* The toggle sits on the line between the side panel and the map. */
  .nav-toggle { position: absolute; z-index: 5; inset-block-start: var(--space-3); inset-inline-end: calc(-1 * var(--space-4)); display: flex; align-items: center; justify-content: center; padding: var(--space-1); cursor: pointer; color: var(--color-text-muted); background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius); }
  .nav-toggle:hover { color: var(--color-brand); border-color: var(--color-brand); }
  .nav-toggle:focus-visible { outline: var(--focus-ring); outline-offset: var(--space-1); }
  .layout.is-collapsed { grid-template-columns: 4.5rem minmax(0, 1fr); }
  .is-collapsed .sidebar-inner { padding: var(--space-16) var(--space-2) var(--space-6); }
  .is-collapsed .tabs legend, .is-collapsed .person { display: none; }
  .is-collapsed .tab { justify-content: center; padding: var(--space-2); min-block-size: var(--space-12); }
  .is-collapsed .tab > span:last-child { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}
@media (min-width: 64.01rem) and (prefers-reduced-motion: reduce) { .layout { transition: none; } }
@media (max-width: 64rem) {
  .layout { grid-template-columns: 1fr; grid-template-rows: auto; grid-template-areas: "head" "side" "main"; }
  .layout > .top { padding: var(--space-4) var(--space-4) 0; }
  .key li.key-next, #page-how .how-wide { display: none; }
  .how-narrow { display: inline; }
  .sidebar { position: static; max-height: none; border-inline-end: 0; border-block-end: 1px solid var(--color-border); }
  main { padding: var(--space-4); }
  .grid-scroll, .hscroll, .scroll-cue { display: none; }
  .stacked { display: block; }
  .panel-inner { padding: var(--space-4); }
}