/* Fusion AI Studio Explorer — dark-first theme, light variant kept usable. */

:root {
  color-scheme: dark light;

  --bg: #0e0d10;
  --bg-deep: #0a090c;
  --panel: #16151a;
  --panel-2: #1d1b22;
  --panel-3: #24222b;
  --border: #2b2932;
  --border-soft: #221f28;
  --fg: #e8e5df;
  --fg-mid: #a8a29a;
  --fg-dim: #736d65;
  --accent: #e0863c;
  --accent-soft: #2a1d12;
  --violet: #8d7ce0;
  --teal: #4fb3a5;
  --danger: #d9534f;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --t-app: #c58af9;
  --t-workflow: #8ab4f8;
  --t-workflowNode: #6d8fc4;
  --t-businessObject: #6dd58c;
  --t-boFunction: #4a9e63;
  --t-tool: #fdd663;
  --t-deeplink: #f2a33c;
  --t-skill: #f28b82;
  --t-promptReference: #d17c74;
  --t-cliCommand: #ff8bcb;
  --t-doc: #9aa0a6;
  --t-docSection: #7a7f85;
  --t-restResource: #4dd0c1;
  --t-appPanel: #b39ddb;
  --t-appSubPanel: #9b86c9;
  --t-appAction: #ce93d8;
  --t-family: #ffab91;
  --t-product: #ffcc80;
  --t-artifactType: #90a4ae;
  --t-modelConfiguration: #80cbc4;
  --t-appStage: #a5d6a7;
  --t-appContextKey: #c5e1a5;
  --t-commandGroup: #f48fb1;
  --t-commandVerb: #f8bbd0;
  --t-policy: #bcaaa4;
  --t-issue: #ef5350;
  --t-other: #8a8a8a;
}

/* Three theme states: follow the system (no data-theme), or force one.
   The light palette is written twice because CSS has no way to alias a
   selector — once for "system says light and the viewer has not forced dark",
   once for "the viewer chose light". Keep the two blocks in sync.
   `color-scheme` is set alongside so native selects, scrollbars and focus rings
   follow the forced theme instead of the OS. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #f6f4ef;
    --bg-deep: #efece5;
    --panel: #fffefb;
    --panel-2: #f2efe8;
    --panel-3: #e8e4da;
    --border: #d9d4c8;
    --border-soft: #e5e1d6;
    --fg: #1e1c19;
    --fg-mid: #57534c;
    --fg-dim: #857f75;
    --accent: #b8590f;
    --accent-soft: #fbeee2;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f4ef;
  --bg-deep: #efece5;
  --panel: #fffefb;
  --panel-2: #f2efe8;
  --panel-3: #e8e4da;
  --border: #d9d4c8;
  --border-soft: #e5e1d6;
  --fg: #1e1c19;
  --fg-mid: #57534c;
  --fg-dim: #857f75;
  --accent: #b8590f;
  --accent-soft: #fbeee2;
}

:root[data-theme="dark"] { color-scheme: dark; }

* { box-sizing: border-box; }

/* An id selector setting `display` outbids the UA stylesheet's [hidden]
   rule, which silently rendered both top-level sections at once. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  height: 100%;
  height: 100dvh;
  background: var(--bg);
  color: var(--fg);
  font: 13.5px/1.55 var(--sans);
  overflow: hidden;
}
body > * { min-width: 0; }
body { display: flex; flex-direction: column; }

.mono { font-family: var(--mono); }
.lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

/* ------------------------------------------------------------- tab strip */

.tabstrip {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto;
}
.tabstrip button {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  padding: 9px 18px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--fg-dim);
  cursor: pointer;
}
.tabstrip button[aria-selected="true"] { color: var(--fg); border-bottom-color: var(--accent); }
.tabstrip a.tablink {
  display: flex; align-items: center;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 9px 18px;
  border-bottom: 2px solid transparent;
  color: var(--fg-dim);
}
.tabstrip a.tablink:hover { color: var(--accent); border-bottom-color: var(--accent); }
.tabstrip .spacer { flex: 1 1 auto; }
.tabstrip .build { padding: 9px 14px; }

/* Theme switch. Selectors are qualified with .tabstrip because `.tabstrip button`
   above matches these too at equal specificity — and, being later in the file,
   would win and give the segmented control full tab-sized padding. */
.tabstrip .theme {
  display: flex;
  align-items: center;
  gap: 1px;
  align-self: center;
  margin-right: 10px;
  padding: 1px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--panel);
}
.tabstrip .theme button {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--fg-dim);
  cursor: pointer;
}
.tabstrip .theme button:hover { color: var(--fg-mid); }
.tabstrip .theme button[aria-pressed="true"] {
  background: var(--panel-3);
  color: var(--fg);
}

/* ------------------------------------------------------------- header */

header {
  display: flex;
  align-items: center;
  gap: 12px 16px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto;
  flex-wrap: wrap;
  row-gap: 10px;
}

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand h1 { font: 400 20px/1 var(--serif); margin: 0; letter-spacing: -0.01em; }
.brand .tag {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.counts { display: flex; gap: 16px; flex-wrap: wrap; }
.counts .c { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--fg-mid); }
.counts .c b { color: var(--fg); font-weight: 600; font-variant-numeric: tabular-nums; }
.dot { width: 6px; height: 6px; border-radius: 50%; flex: none; }

.controls { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-left: auto; }
.sel {
  display: flex; align-items: center; gap: 5px;
  padding: 5px 8px 5px 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
}
.sel > span { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-dim); }
.sel select {
  font: inherit; font-size: 12px;
  color: var(--fg);
  background: transparent;
  border: 0;
  cursor: pointer;
  padding-right: 2px;
}
.sel select:focus { outline: none; }

button.search-open {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px;
  min-width: 170px;
  flex: 0 1 auto;
  font: inherit; font-size: 12.5px;
  color: var(--fg-dim);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  text-align: left;
}
button.search-open:hover { border-color: var(--accent); color: var(--fg-mid); }
button.search-open kbd {
  margin-left: auto;
  font-family: var(--mono); font-size: 10px;
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--fg-dim);
}

/* ------------------------------------------------------------- graph layout */

#graph { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 0; }

.graph-main {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: 312px minmax(0, 1fr) 336px;
  min-height: 0;
  /* No transition on grid-template-columns: it is unreliable (the first change
     after page load was dropped) and animating a grid track is not worth a
     layout that sometimes does not apply. */
}

/* Collapsed track sizes are applied as an inline style by setPanelWidths() in
   app.js. Doing it from the stylesheet did not stick: the selector matched and
   the rule was present, yet the computed grid-template-columns kept the base
   value. An inline style cannot be outranked, and JS already owns the state. */

.side { position: relative; overflow: hidden; background: var(--panel); min-height: 0; }
.side.left { border-right: 1px solid var(--border); }
.side.right { border-left: 1px solid var(--border); }
.side-body { height: 100%; overflow: auto; }
.side.left .side-body { padding: 14px 14px 14px 14px; }

/* collapse toggles */
.panel-toggle {
  position: absolute;
  top: 8px; right: 6px;
  z-index: 4;
  width: 20px; height: 20px;
  display: grid; place-items: center;
  font: 600 13px/1 var(--sans);
  color: var(--fg-dim);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  cursor: pointer;
}
.panel-toggle.right { right: auto; left: 6px; }
.panel-toggle:hover { color: var(--accent); border-color: var(--accent); }

.rail-label { display: none; }
body.left-collapsed .side.left .side-body,
body.right-collapsed .side.right .side-body { display: none; }
body.left-collapsed .side.left .rail-label,
body.right-collapsed .side.right .rail-label {
  display: block;
  position: absolute;
  top: 40px; left: 50%;
  transform: translateX(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--fg-dim);
  white-space: nowrap;
  pointer-events: none;
}
body.left-collapsed #toggle-left, body.right-collapsed #toggle-right { right: 4px; left: 4px; }

.stage { position: relative; min-width: 0; min-height: 320px; background: var(--bg); }
canvas { display: block; width: 100%; height: 100%; cursor: grab; touch-action: none; }
canvas:active { cursor: grabbing; }

/* ------------------------------------------------------------- cards */

.card {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 12px;
}
.card > .lbl { margin-bottom: 6px; display: block; }

.focus-title { font: 400 19px/1.2 var(--serif); margin: 0 0 4px; }
.focus-kind { font-size: 11.5px; color: var(--fg-dim); margin-bottom: 10px; }

.metric-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.metric {
  background: var(--panel-3);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 9px 10px;
}
.metric .k { font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-dim); }
.metric .v { font: 600 19px/1.15 var(--sans); font-variant-numeric: tabular-nums; margin: 3px 0 1px; }
.metric .s { font-size: 10.5px; color: var(--fg-dim); line-height: 1.35; }
.metric.hot .v { color: var(--accent); }

.insight { display: flex; gap: 8px; margin-top: 10px; }
.insight .bullet { width: 6px; height: 6px; border-radius: 50%; margin-top: 6px; flex: none; background: var(--accent); }
.insight .body { font-size: 12px; color: var(--fg-mid); }
.insight .body b { display: block; color: var(--fg); font-weight: 600; margin-bottom: 1px; }

.pressure { margin-bottom: 10px; }
.pressure .row { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.pressure .name { font-size: 12.5px; font-weight: 600; }
.pressure .n { font-size: 10.5px; color: var(--fg-dim); white-space: nowrap; }
.pressure .keys { font-size: 11px; color: var(--fg-dim); margin: 2px 0 5px; }
.bar { height: 3px; border-radius: 2px; background: var(--panel-3); overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent); }

.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 7px;
  border-radius: 999px;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.06em;
  background: var(--panel-3);
  border: 1px solid var(--border);
  color: var(--fg-mid);
  margin: 0 4px 4px 0;
}
.badge.hot { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.badge.warn { background: #2a1414; border-color: var(--danger); color: #ff8a85; }
.badge.off { opacity: 0.4; }
.badge.clickable { cursor: pointer; }
.badge.clickable:hover { border-color: var(--accent); color: var(--accent); }

/* ------------------------------------------------------------- browse list */

.browse-filter {
  width: 100%;
  padding: 7px 9px;
  margin-bottom: 10px;
  font: inherit; font-size: 12.5px;
  color: var(--fg);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
}
.browse-filter:focus { outline: 1px solid var(--accent); }

details.grp2 { margin-bottom: 8px; border-bottom: 1px solid var(--border-soft); padding-bottom: 6px; }
details.grp2 > summary {
  cursor: pointer;
  display: flex; align-items: center; gap: 7px;
  padding: 5px 0;
  font-size: 12.5px; font-weight: 600;
  list-style: none;
}
details.grp2 > summary::-webkit-details-marker { display: none; }
details.grp2 > summary::before {
  content: '▸'; color: var(--fg-dim); font-size: 10px; width: 9px; flex: none;
}
details.grp2[open] > summary::before { content: '▾'; }
details.grp2 > summary .n { margin-left: auto; font-family: var(--mono); font-size: 10px; color: var(--fg-dim); }
details.grp2 > summary .note { font-weight: 400; font-size: 10.5px; color: var(--fg-dim); }

ul.browse { list-style: none; margin: 2px 0 0; padding: 0 0 0 16px; }
ul.browse li { padding: 2px 0; font-size: 12.5px; line-height: 1.4; overflow-wrap: anywhere; }
ul.browse li .sub { color: var(--fg-dim); font-size: 10.5px; }
button.more {
  margin: 4px 0 0 16px;
  font: inherit; font-size: 11px;
  padding: 2px 8px;
  background: var(--panel-3); color: var(--fg-mid);
  border: 1px solid var(--border); border-radius: 5px; cursor: pointer;
}
button.more:hover { color: var(--accent); border-color: var(--accent); }

.back-browse {
  display: inline-flex; align-items: center; gap: 5px;
  margin-bottom: 10px;
  font: inherit; font-size: 11.5px;
  padding: 4px 9px;
  background: var(--panel-2); color: var(--fg-mid);
  border: 1px solid var(--border); border-radius: 6px; cursor: pointer;
}
.back-browse:hover { color: var(--accent); border-color: var(--accent); }

/* ------------------------------------------------------------- right panel */

.rtabs {
  display: flex;
  padding-left: 24px;                 /* clear of the collapse toggle */
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
  background: var(--panel);
  z-index: 2;
}
.rtabs button {
  flex: 1 1 0;
  min-width: 0;
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 10px 2px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  border: 0; border-bottom: 2px solid transparent;
  background: transparent; color: var(--fg-dim);
  cursor: pointer;
}
.rtabs button[aria-selected="true"] { color: var(--fg); border-bottom-color: var(--accent); }
.rbody { padding: 14px; overflow-wrap: anywhere; }
.rbody code { overflow-wrap: anywhere; }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 3px 10px; font-size: 12.5px; }
.kv dt { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-dim); padding-top: 3px; }
.kv dd { margin: 0; overflow-wrap: anywhere; }

/* The left panel is too narrow for a two-column definition list: long artifact
   codes break mid-word. Stack label over value there instead. */
#focus-panel .kv { grid-template-columns: 1fr; gap: 0; }
#focus-panel .kv dt { padding-top: 8px; }
#focus-panel .kv dt:first-child { padding-top: 0; }
#focus-panel .kv dd { margin-bottom: 0; font-size: 12.5px; line-height: 1.45; }
#focus-panel .kv dd code { font-size: 11px; }

pre {
  margin: 8px 0 0;
  padding: 9px 10px;
  background: var(--bg-deep);
  border: 1px solid var(--border-soft);
  border-radius: 7px;
  font-family: var(--mono); font-size: 11px; line-height: 1.5;
  max-height: 260px; overflow: auto;
  white-space: pre-wrap; overflow-wrap: anywhere;
}

a.nl { color: var(--fg); text-decoration: none; cursor: pointer; border-bottom: 1px solid var(--border); }
a.nl:hover { color: var(--accent); border-bottom-color: var(--accent); }
.ctx { color: var(--fg-dim); font-size: 11px; }

ul.links { list-style: none; margin: 0; padding: 0; }
ul.links li { padding: 2px 0; font-size: 12.5px; }

.relgrp { margin-bottom: 12px; }
.relgrp > .lbl { display: block; margin-bottom: 3px; }

.rank-row {
  display: flex; align-items: baseline; gap: 8px;
  padding: 5px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 12.5px;
}
.rank-row .num { font-family: var(--mono); font-size: 10px; color: var(--fg-dim); width: 20px; flex: none; }
.rank-row .val { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--accent); white-space: nowrap; }

/* ------------------------------------------------------------- stage overlays */

.overlay {
  position: absolute;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: 10px;
  backdrop-filter: blur(6px);
}
.ov-controls { bottom: 14px; right: 14px; padding: 11px 13px; width: 232px; }
.ov-controls .lbl { display: flex; justify-content: space-between; margin-bottom: 5px; }
.ov-controls input[type="range"] { width: 100%; accent-color: var(--accent); margin: 0 0 10px; }
.ov-controls select {
  width: 100%;
  font: inherit; font-size: 12px;
  color: var(--fg);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 7px;
}
.ov-controls .hint { font-size: 10.5px; color: var(--fg-dim); margin-top: 8px; line-height: 1.4; }

.ov-empty {
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  padding: 18px 22px; text-align: center; max-width: 340px;
  color: var(--fg-dim); font-size: 12.5px;
}

.stage-actions { position: absolute; top: 12px; right: 14px; display: flex; gap: 6px; }
.stage-actions button, .mini {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 5px 9px;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  color: var(--fg-mid);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}
.stage-actions button:hover, .mini:hover { color: var(--accent); border-color: var(--accent); }
.mini.on { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* ------------------------------------------------------------- hover tip */

.tip {
  position: absolute;
  z-index: 5;
  max-width: 300px;
  padding: 8px 10px;
  background: color-mix(in srgb, var(--panel) 96%, transparent);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  pointer-events: none;
  display: flex; flex-direction: column; gap: 2px;
}
.tip b { font-size: 12.5px; font-weight: 600; }
.tip span { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-dim); }
.tip i { font-style: normal; font-size: 11.5px; color: var(--fg-mid); margin-top: 2px; }

/* ------------------------------------------------------------- legend + status */

.legend {
  flex: 0 0 auto;
  display: flex; align-items: center; gap: 10px;
  padding: 7px 14px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  max-height: 92px;
  overflow-y: auto;
  scrollbar-width: thin;
}
.legend::-webkit-scrollbar { height: 5px; }
.legend::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.legend .title { font: 400 14px/1 var(--serif); flex: none; white-space: nowrap; }
.legend > .lbl { flex: none; white-space: nowrap; }
.legend .chips { display: flex; gap: 5px; flex-wrap: wrap; row-gap: 4px; min-width: 0; }
.legend { flex-wrap: wrap; }

.status {
  flex: 0 0 auto;
  display: flex; gap: 14px; align-items: center;
  padding: 5px 14px;
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  font-family: var(--mono); font-size: 10.5px; color: var(--fg-dim);
}
.status .right { margin-left: auto; }
.status .credit { color: var(--fg-dim); }
.status .credit a { color: var(--fg-mid); text-decoration: none; border-bottom: 1px solid var(--border); }
.status .credit a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* ------------------------------------------------------------- command palette */

.palette-back {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: grid; place-items: start center;
  padding-top: 12vh;
  z-index: 50;
}
.palette {
  width: min(720px, 92vw);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}
.palette input {
  width: 100%;
  padding: 15px 18px;
  font: inherit; font-size: 15px;
  color: var(--fg);
  background: transparent;
  border: 0; border-bottom: 1px solid var(--border);
}
.palette input:focus { outline: none; }
.palette .hits { max-height: 54vh; overflow: auto; }
.palette .hit {
  display: flex; align-items: center; gap: 9px;
  padding: 8px 18px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-soft);
}
.palette .hit[aria-selected="true"] { background: var(--panel-2); box-shadow: inset 2px 0 0 var(--accent); }
.palette .hit .t { font-size: 13px; }
.palette .hit em { font-style: normal; color: var(--accent); }
.palette .hit .m { margin-left: auto; font-family: var(--mono); font-size: 10px; color: var(--fg-dim); white-space: nowrap; }
.palette .foot { padding: 8px 18px; font-size: 11px; color: var(--fg-dim); display: flex; gap: 14px; }

/* ------------------------------------------------------------- data lab */

#lab { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 0; }
.lab-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.lab-bar input[type="text"] {
  flex: 1 1 220px; min-width: 160px;
  padding: 7px 10px;
  font: inherit; color: var(--fg);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
}
.lab-bar input[type="text"]:focus { outline: 1px solid var(--accent); }

.lab-scroll { flex: 1 1 auto; overflow: auto; min-height: 200px; }
table.grid { width: 100%; border-collapse: collapse; font-size: 12px; }
table.grid thead th {
  position: sticky; top: 0; z-index: 1;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  padding: 7px 9px;
  text-align: left;
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-dim);
  cursor: pointer;
  white-space: nowrap;
}
table.grid thead th:hover { color: var(--accent); }
table.grid thead th.sorted { color: var(--fg); }
table.grid tbody td { padding: 5px 9px; border-bottom: 1px solid var(--border-soft); }
table.grid tbody tr:hover { background: var(--panel-2); }
table.grid td.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
table.grid td.name { font-weight: 500; }

.tools {
  flex: 0 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  padding: 14px;
  border-top: 1px solid var(--border);
  background: var(--panel);
  max-height: 42vh; overflow: auto;
}
.tool { background: var(--panel-2); border: 1px solid var(--border-soft); border-radius: 10px; padding: 14px; min-width: 0; }
.tool h3 { font: 400 15px/1.2 var(--serif); margin: 0 0 3px; }
.tool p.ctx { margin: 0 0 10px; }
.tool .row { display: flex; gap: 7px; margin-bottom: 7px; flex-wrap: wrap; }
.tool input[type="text"] {
  flex: 1 1 180px;
  padding: 6px 9px;
  font: inherit; color: var(--fg);
  background: var(--panel-3);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.tool button.go {
  font: inherit; font-size: 12px;
  padding: 6px 13px;
  background: var(--accent); color: #14100c;
  border: 0; border-radius: 6px; font-weight: 600;
  cursor: pointer;
}
.hop { display: flex; align-items: baseline; gap: 8px; padding: 3px 0; font-size: 12.5px; }
.hop .num {
  flex: none; width: 19px; height: 19px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--panel-3); border: 1px solid var(--border);
  font-family: var(--mono); font-size: 9.5px;
}
.hop .via { font-family: var(--mono); font-size: 10.5px; color: var(--fg-dim); }
details.grp summary { cursor: pointer; padding: 3px 0; font-size: 12.5px; }

.empty { padding: 20px 4px; color: var(--fg-dim); font-size: 12.5px; }

/* Phone-only furniture, laid out by the breakpoint at the foot of this file. */
.mbar { display: none; }
.drawer-scrim { display: none; }
.ov-toggle { display: none; }
.touch-only { display: none; }

@media (max-width: 1280px) {
  .graph-main { grid-template-columns: 268px minmax(0, 1fr) 300px; }
}
@media (max-width: 1040px) {
  .graph-main { grid-template-columns: minmax(0, 1fr) 300px; }
  .side.left { display: none; }
  .tools { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------- phone

   Below this width the three-column grid cannot hold: the canvas would be a
   sliver between two panels. The stage takes the full width and both panels
   become drawers that slide over it.

   `!important` on the grid tracks is deliberate — setPanelWidths() in app.js
   writes grid-template-columns as an inline style, and an inline declaration
   outranks a plain rule here however late it appears. (app.js also skips that
   write on a phone; this is the belt to its braces.) */
@media (max-width: 860px) {
  .mbar { display: flex; }
  .ov-toggle { display: block; }
  .touch-only { display: inline-block; }

  /* --------------------------------------------------- chrome */

  .tabstrip { flex-wrap: wrap; }
  .tabstrip button { padding: 11px 14px; }
  .tabstrip .build { display: none; }
  .tabstrip .theme { margin-right: 8px; }
  .tabstrip .theme button { padding: 5px 9px; }

  header { padding: 9px 12px; gap: 8px 10px; row-gap: 8px; }
  .brand { flex: 1 1 100%; flex-wrap: wrap; gap: 4px 9px; }
  .brand h1 { font-size: 17px; }
  .counts {
    flex: 1 1 100%;
    gap: 6px 14px;
    max-height: 46px;
    overflow-y: auto;
    scrollbar-width: thin;
  }
  .counts .c { font-size: 11.5px; }
  /* Basis rather than a percentage, so the three controls sit on one line on a
     small tablet and fold to two rows on a phone without a second breakpoint. */
  .controls { flex: 1 1 100%; margin-left: 0; gap: 6px; }
  .controls .sel { flex: 1 1 160px; min-width: 0; max-width: 340px; }
  .controls .sel select { flex: 1 1 auto; min-width: 0; }
  button.search-open { flex: 1 1 220px; min-width: 0; }
  button.search-open kbd { display: none; }

  /* 16px keeps iOS Safari from zooming the whole page in on focus. */
  .sel select,
  .browse-filter,
  .ov-controls select,
  .lab-bar input[type="text"],
  .tool input[type="text"] { font-size: 16px; }

  /* --------------------------------------------------- drawers */

  .mbar {
    flex: 0 0 auto;
    gap: 8px;
    padding: 7px 12px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
  }
  .mbar button {
    flex: 1 1 0;
    font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 9px 10px;
    color: var(--fg-mid);
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 7px;
    cursor: pointer;
  }
  .mbar button[aria-expanded="true"] {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-soft);
  }

  .graph-main { grid-template-columns: minmax(0, 1fr) !important; }

  .side {
    position: fixed;
    top: 0; bottom: 0;
    z-index: 40;
    width: min(88vw, 380px);
    border: 0;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
    transition: transform 0.2s ease;
  }
  /* The 1040px rule above drops the left panel entirely; as a drawer it is the
     only way to reach Browse on a phone, so put it back. */
  .side.left { display: block; left: 0; transform: translateX(-101%); border-right: 1px solid var(--border); }
  .side.right { right: 0; transform: translateX(101%); border-left: 1px solid var(--border); }
  body.m-left-open .side.left,
  body.m-right-open .side.right { transform: none; }

  /* Collapsed-rail state is a desktop idea; a drawer is either open or gone. */
  body.left-collapsed .side.left .side-body,
  body.right-collapsed .side.right .side-body { display: block; }
  .rail-label { display: none !important; }

  .drawer-scrim {
    position: fixed; inset: 0;
    z-index: 35;
    background: rgba(0, 0, 0, 0.5);
  }
  body.m-left-open .drawer-scrim,
  body.m-right-open .drawer-scrim { display: block; }

  /* The collapse chevrons close the drawer instead (app.js rebinds them). */
  .panel-toggle { width: 30px; height: 30px; font-size: 17px; top: 6px; }
  .side.left .panel-toggle { right: 8px; left: auto; }
  .side.right .panel-toggle { left: 8px; right: auto; }
  .side.left .side-body { padding: 12px; }
  .rtabs { padding-left: 44px; }
  .rtabs button { font-size: 9.5px; padding: 12px 2px; }
  .rbody { padding: 12px; }

  /* --------------------------------------------------- stage */

  .stage { min-height: 220px; }
  .stage-actions { top: 8px; right: 8px; gap: 5px; }
  .stage-actions button { padding: 7px 10px; }
  #zoom-in, #zoom-out { font-size: 13px; padding: 5px 11px; line-height: 1; }

  .ov-controls {
    left: 8px; right: 8px; bottom: 8px;
    width: auto;
    padding: 8px 10px;
  }
  .ov-toggle {
    width: 100%;
    font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.12em;
    text-transform: uppercase;
    text-align: left;
    padding: 3px 0;
    color: var(--fg-mid);
    background: transparent;
    border: 0;
    cursor: pointer;
  }
  .ov-toggle::after { content: ' \25BE'; color: var(--fg-dim); }
  .ov-controls.collapsed .ov-toggle::after { content: ' \25B8'; }
  .ov-controls.collapsed > *:not(.ov-toggle) { display: none; }
  .ov-controls .hint { display: none; }
  .ov-controls input[type="range"] { margin-bottom: 12px; height: 22px; }
  .ov-controls select { padding: 8px 7px; }
  .ov-empty { max-width: min(88vw, 340px); padding: 14px 16px; }
  .tip { max-width: min(78vw, 260px); }

  /* --------------------------------------------------- legend + status */

  .legend { padding: 6px 10px; gap: 6px 8px; max-height: 76px; }
  .legend .title { font-size: 13px; }
  .status {
    flex-wrap: wrap;
    gap: 2px 10px;
    padding: 5px 10px;
    font-size: 9.5px;
    line-height: 1.5;
  }
  .status .right { margin-left: 0; }

  /* --------------------------------------------------- palette */

  .palette-back { padding-top: 5vh; }
  .palette { width: 94vw; }
  .palette input { font-size: 16px; padding: 13px 15px; }
  .palette .hits { max-height: 62vh; }
  .palette .hit { padding: 11px 15px; }
  .palette .foot { display: none; }

  /* --------------------------------------------------- data lab */

  .lab-bar { padding: 8px 10px; gap: 7px; }
  .lab-bar input[type="text"] { flex: 1 1 100%; }
  .lab-bar .sel { flex: 1 1 44%; min-width: 0; }
  .lab-bar .sel select { min-width: 0; }
  /* Fourteen columns will not fold. Let the grid scroll sideways in its own box
     rather than squeezing every column to unreadable — the floor matters once a
     filter narrows the content enough for the table to shrink to the screen. */
  .lab-scroll { -webkit-overflow-scrolling: touch; }
  table.grid { min-width: 1080px; }
  /* Half the screen is too much to spend on the two query tools when the grid
     above them is the reason to be here. */
  .tools { grid-template-columns: 1fr; padding: 10px; gap: 10px; max-height: 38vh; }
  .tool { padding: 11px; }
}

/* A phone held sideways has ~350px of height to spend: drop the legend and
   tighten the header so the canvas keeps most of it. */
@media (max-width: 960px) and (max-height: 520px) {
  .legend { display: none; }
  .counts { display: none; }
  header { padding: 6px 12px; }
  .brand h1 { font-size: 15px; }
}