/* Graph Explorer layout. Colours, fonts and the top bar come from ../study-guides/assets/guide.css. */
body.xp { font-size: 15px; line-height: 1.55; overflow: hidden; height: 100vh; height: 100dvh; display: flex; flex-direction: column; }
.xp .shell { flex: 1; min-height: 0; display: grid; grid-template-columns: 216px minmax(0, 1fr) 400px; }

.xp .lessons { border-right: 1px solid var(--line); padding: 12px 8px; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; }
.xp .lessons button { all: unset; box-sizing: border-box; cursor: pointer; display: flex; gap: 9px; align-items: baseline; padding: 8px 10px; border-radius: 10px; color: var(--muted); font-size: 14px; line-height: 1.3; }
.xp .lessons button span { font: 700 11px var(--sans); color: var(--green-ink); background: var(--green-soft); border-radius: 6px; padding: 2px 6px; flex: none; }
.xp .lessons button:hover { background: var(--panel); color: var(--text); }
.xp .lessons button.on { background: var(--green-soft); color: var(--text); font-weight: 600; }
.xp .lessons button:focus-visible, .xp .xbtn:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }

.xp .stage { display: flex; flex-direction: column; min-width: 0; min-height: 0; padding: 10px 14px 8px; gap: 8px; }
.xp .netbar { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; }
.xp .netbar .ctl { grid-template-columns: auto auto; width: auto; }
.xp .netbar p, .xp .blurb { margin: 0; color: var(--muted); font-size: 13px; }
.xp .genparams { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 2px 18px; align-items: center; background: var(--panel); border-radius: 12px; padding: 8px 12px; }
.xp .canvas-wrap { position: relative; flex: 1; min-height: 240px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.xp #graph { position: absolute; inset: 0; width: 100%; height: 100%; touch-action: none; cursor: grab; }
.xp .legend { position: absolute; left: 10px; bottom: 8px; right: 10px; font-size: 12px; color: var(--muted); pointer-events: none; line-height: 1.7; }
.xp .sw { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin: 0 4px 0 8px; vertical-align: -1px; }
.xp .sw:first-child { margin-left: 0; }
.xp .bar { display: inline-block; width: 70px; height: 9px; border-radius: 5px; vertical-align: -1px; margin-right: 4px; }
.xp .bar.seq { background: linear-gradient(90deg, rgb(72,35,116), rgb(59,82,139), rgb(33,145,140), rgb(94,201,98), rgb(253,231,37)); }
.xp .bar.seq.rev { transform: scaleX(-1); margin-left: 8px; }
.xp .bar.div { background: linear-gradient(90deg, rgb(43,92,168), rgb(200,200,196), rgb(186,52,42)); }
.xp .xtip { position: absolute; max-width: 250px; background: var(--tip-bg); color: var(--tip-ink); font-size: 12px; line-height: 1.45; padding: 6px 9px; border-radius: 8px; pointer-events: none; z-index: 3; }
.xp .xtip span { opacity: .7; }
.xp .busy { position: absolute; top: 10px; right: 12px; font-size: 12px; background: var(--gold-soft); color: var(--text); border-radius: 8px; padding: 3px 9px; }

.xp .panel { border-left: 1px solid var(--line); overflow-y: auto; padding: 14px 16px 28px; background: var(--bg); }
.xp .panel h1 { font-size: 1.45rem; margin: 0 0 4px; }
.xp .panel h4 { font: 600 12px var(--sans); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 18px 0 6px; }
.xp .panel p { margin: 0 0 10px; }
.xp .panel .links { font-size: 13px; color: var(--muted); }
.xp .controls { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px; margin: 12px 0; display: flex; flex-direction: column; gap: 4px; }
.xp .controls:empty { display: none; }
.xp .ctl { display: grid; grid-template-columns: 128px minmax(0, 1fr) auto; gap: 8px; align-items: center; font-size: 13px; min-height: 30px; }
.xp .ctl > span { color: var(--muted); }
.xp .ctl output { font: 12px var(--mono); min-width: 40px; text-align: right; }
.xp .ctl select { grid-column: 2 / -1; min-width: 0; width: 100%; font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 4px 6px; }
.xp .ctl input[type=range] { width: 100%; accent-color: var(--green); }
.xp .ctlrow { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.xp .xbtn { font: 600 13px var(--sans); color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 5px 13px; cursor: pointer; }
.xp .xbtn:hover { border-color: var(--green); }
.xp .xbtn.primary { background: var(--green); border-color: var(--green); color: #fff; }
.xp .xbtn:disabled { opacity: .45; cursor: default; }
.xp .more summary { cursor: pointer; font-size: 13px; color: var(--muted); padding: 4px 0; }
.xp .stats { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 2px 12px; margin: 0 0 8px; font-size: 13px; }
.xp .stats dt { color: var(--muted); }
.xp .stats dd { margin: 0; font-variant-numeric: tabular-nums; }
.xp .chart { display: block; width: 100%; margin: 0 0 8px; }
.xp .note { font-size: 13px; color: var(--muted); }
.xp .toplist { margin: 0; padding-left: 22px; font-size: 13px; columns: 2; }
.xp .toplist li { cursor: pointer; font-variant-numeric: tabular-nums; }
.xp .toplist b { font-weight: 600; }
.xp .board { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.xp .board th, .xp .board td { text-align: left; padding: 3px 6px 3px 0; border-bottom: 1px solid var(--line); }
.xp .board th { color: var(--muted); font-weight: 600; }
.xp .board td:last-child { font-variant-numeric: tabular-nums; font-weight: 600; }
.xp .try { border: 1px solid var(--line); background: var(--surface); border-radius: 12px; padding: 8px 12px; margin-bottom: 8px; font-size: 13.5px; }
.xp .try summary { cursor: pointer; }
.xp .try p { margin: 8px 0 2px; color: var(--text); }
.xp .try[open] { border-color: var(--green); }
.xp .fine { font-size: 12px; color: var(--muted); margin-top: 18px; }

@media (max-width: 1080px) {
  body.xp { overflow: auto; height: auto; }
  .xp .shell { display: block; }
  .xp .lessons { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); padding: 8px 12px; }
  .xp .lessons button { white-space: nowrap; }
  .xp .canvas-wrap { flex: none; height: 62vh; }
  .xp .panel { border-left: 0; overflow: visible; }
}
.xp .topbar .inner { max-width: none; }
.xp [hidden] { display: none !important; }

/* the selected node's card, the network description, own-data note */
.xp .ncard { position: absolute; top: 10px; left: 10px; max-width: 290px; background: color-mix(in srgb, var(--surface) 94%, transparent); border: 1px solid var(--line); border-radius: 12px; padding: 8px 26px 8px 11px; font-size: 12.5px; line-height: 1.5; box-shadow: var(--shadow); z-index: 2; }
.xp .ncard .id, .xp .ncard .nbrs { color: var(--muted); }
.xp .ncard .nbrs { margin-top: 4px; }
.xp .ncard .close { all: unset; position: absolute; top: 2px; right: 8px; cursor: pointer; font-size: 18px; color: var(--muted); }
.xp .about { background: var(--panel); border-radius: 12px; padding: 6px 12px; font-size: 13px; max-height: 34vh; overflow-y: auto; flex: none; }
.xp .about summary { cursor: pointer; color: var(--muted); }
.xp .about summary b { color: var(--text); font-weight: 600; }
.xp .about dl { display: grid; grid-template-columns: 74px minmax(0, 1fr); gap: 3px 10px; margin: 6px 0 4px; }
.xp .about dt { color: var(--muted); }
.xp .about dd { margin: 0; }
.xp .own { font-size: 12px; background: var(--gold-soft); border-radius: 8px; padding: 2px 9px; }
.xp select:disabled { opacity: .5; }

/* find box, formulas, progress, own edge list */
.xp .netbar .find input { font: inherit; width: 150px; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 4px 8px; }
.xp .xformula { display: flex; flex-direction: column; gap: 3px; font: 12.5px/1.5 var(--mono); background: var(--panel); border-radius: 10px; padding: 8px 11px; color: var(--text); }
.xp .lessons button em { margin-left: auto; font: 600 11px var(--sans); font-style: normal; color: var(--muted); flex: none; }
.xp .lessons button.done em { color: var(--green-ink); }
.xp .try.seen summary b { color: var(--green-ink); }
.xp .try.seen summary b::after { content: "✓ "; }
.xp .genparams.ownbox { display: flex; flex-direction: column; gap: 6px; }
.xp .ownbox textarea { width: 100%; box-sizing: border-box; font: 12.5px/1.45 var(--mono); color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; resize: vertical; }
.xp .ownbox .ctlrow { align-items: center; margin-top: 0; }
.xp .ownbox input[type=file] { display: none; }
.xp .ownbox .note { margin: 0; }
.xp .board td { font-variant-numeric: tabular-nums; }
.xp .board.wide { font-size: 11.5px; table-layout: fixed; }
.xp .board.wide th, .xp .board.wide td { padding-right: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xp .board.wide td:last-child { font-weight: 400; }
.xp .board.wide td:nth-child(2) { font-weight: 600; }
.xp .board.wide th:first-child { width: 25%; }
.xp .board.wide th { text-transform: none; letter-spacing: 0; font-size: 11px; }