:root {
  /* Markets InSecurity desk tokens — red property, dark theme. (Forked from the Heretics-gold
     build at heretics.io/build-your-soc; only the accent changes — bg/ink/coverage stay functional.) */
  --bg: #121214; --surface: #1A1A1E; --raised: #212126;
  --ink: #ECEAE3; --mut: #9A968C; --faint: #87837A; /* faint bumped #6E6A62→#87837A for WCAG AA (~5:1) on --bg; it carries small label/metadata text */
  --line: rgba(255,255,255,.10); --line-strong: rgba(255,255,255,.18);
  --accent: #E2504A; --accent-light: #B0302A; --accent-ink: var(--accent); /* MIS red */
  /* functional coverage scale — a data-viz convention, NOT a brand accent.
     CVD-safe: separated in luminance (blind .16 → partial .30 → strong .35 → covered .39) so tiers
     stay distinct in greyscale / for red-green deficiency; 'partial' shifted amber→orange so it never
     reads as the gold --accent. Heatmap bars also carry text tier labels (app.js TIER_LABEL) for full redundancy. */
  --strong: #22b84e; --covered: #8fb52a; --partial: #e07a1e; --blind: #d12d36; --na: #33333d;
  /* house type */
  --display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  /* type scale — discrete steps replacing 14 ad-hoc sizes (no sub-10px, no half-px noise band) */
  --fs-xs: 10px; --fs-sm: 11px; --fs-cap: 12px; --fs-base: 13px;
  --fs-md: 14px; --fs-lg: 16px; --fs-2xl: 24px; --fs-3xl: 28px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: var(--fs-md); line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  display: flex; flex-direction: column; height: 100vh;
}
.mono { font-family: var(--mono); font-feature-settings: "tnum" 1; }

.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px; border-bottom: 1px solid var(--line); background: var(--surface);
  position: sticky; top: 0; z-index: 5;
}
.brandwrap { display: flex; align-items: center; gap: 11px; }
.brand-lockup { display: flex; align-items: center; gap: 9px; text-decoration: none; }
.brand-mark { font-family: var(--mono); color: var(--accent-ink); font-weight: 700; font-size: var(--fs-lg); line-height: 1; }
.brand-desk { font-family: var(--display); color: var(--ink); font-weight: 500; font-size: var(--fs-lg); letter-spacing: -.01em; }
.brand-sep { color: var(--faint); font-weight: 300; font-size: var(--fs-lg); }
.brand { font-family: var(--display); font-weight: 500; font-size: var(--fs-lg); letter-spacing: -.01em; color: var(--ink); }
.tag { font-family: var(--mono); color: var(--faint); font-weight: 500; font-size: var(--fs-xs);
  letter-spacing: .08em; text-transform: uppercase; margin-left: 4px; }
.actions { display: flex; gap: 8px; align-items: center; }
.hint { color: var(--faint); font-size: var(--fs-cap); }
button { font: inherit; cursor: pointer; border-radius: 6px; border: 1px solid var(--line);
  background: var(--raised); color: var(--ink); padding: 6px 10px; }
button:hover { border-color: var(--accent); }
.ghost { background: transparent; color: var(--mut); }

.grid { display: grid; grid-template-columns: 280px 1fr 320px; gap: 0; flex: 1; min-height: 0; }

.foot { display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 8px 18px; border-top: 1px solid var(--line); background: var(--surface);
  font-size: var(--fs-sm); color: var(--faint); flex: none; }
.foot a { color: var(--mut); text-decoration: none; }
.foot a:hover { color: var(--accent-ink); }
.foot-r a { color: var(--accent-ink); font-family: var(--mono); font-size: var(--fs-sm); letter-spacing: .03em; }
.palette, .side { overflow-y: auto; padding: 14px; }
.palette { border-right: 1px solid var(--line); background: var(--surface); }
.side { border-left: 1px solid var(--line); background: var(--surface); }
.board { overflow-y: auto; padding: 18px 22px; }

#search { width: 100%; padding: 8px 10px; margin-bottom: 12px; border-radius: 6px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
.cat-h { color: var(--faint); font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: .8px;
  margin: 14px 0 6px; display: flex; justify-content: space-between; }
.pitem { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 6px;
  border: 1px solid transparent; cursor: pointer; }
.pitem:hover { background: var(--raised); }
.pitem.on { background: var(--raised); border-color: var(--accent); }
.pitem .nm { flex: 1; }
.pitem .vn { color: var(--faint); font-size: var(--fs-sm); }
.dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }

.section-h { font-size: var(--fs-base); margin: 16px 0 8px; font-weight: 600; }
.section-h:first-child { margin-top: 0; }
.sub { color: var(--faint); font-weight: 400; font-size: var(--fs-sm); margin-left: 6px; }

.scorebar { display: flex; gap: 16px; align-items: baseline; padding: 12px 14px; margin-bottom: 8px;
  background: var(--raised); border: 1px solid var(--line); border-radius: 8px; }
.scorebar .pct { font-family: var(--mono); font-size: var(--fs-3xl); font-weight: 700; letter-spacing: -.01em; }
.scorebar .tiers { color: var(--mut); font-size: var(--fs-cap); }
.scorebar .pill { display: inline-block; padding: 1px 7px; border-radius: 20px; margin-right: 6px; font-size: var(--fs-sm); }

.heatmap { display: flex; flex-direction: column; gap: 4px; }
.trow { display: grid; grid-template-columns: 200px 1fr 150px; align-items: center; gap: 10px;
  padding: 5px 8px; border-radius: 6px; cursor: pointer; }
.trow:hover { background: var(--surface); }
.trow .tname { font-size: var(--fs-base); }
.trow .tname .tid { color: var(--faint); font-size: var(--fs-xs); margin-right: 6px; }
.track { height: 14px; background: #15151b; border-radius: 4px; overflow: hidden; border: 1px solid var(--line); }
.fill { height: 100%; border-radius: 3px 0 0 3px; }
.meta { font-size: var(--fs-sm); color: var(--mut); text-align: right; }
.flag { color: var(--partial); }
.lift { color: var(--accent); }
.detail { grid-column: 1 / -1; padding: 6px 10px 10px; color: var(--mut); font-size: var(--fs-cap); }
.detail .c { display: inline-block; margin: 2px 8px 2px 0; padding: 1px 7px; background: var(--raised);
  border: 1px solid var(--line); border-radius: 5px; }

.stack { display: flex; flex-direction: column; gap: 4px; margin-bottom: 4px; }
.sitem { display: flex; align-items: center; gap: 8px; padding: 5px 8px; background: var(--raised);
  border: 1px solid var(--line); border-radius: 6px; }
.sitem .nm { flex: 1; font-size: var(--fs-base); }
.sitem .x { color: var(--faint); cursor: pointer; padding: 0 4px; }
.sitem .x:hover { color: var(--blind); }
.empty { color: var(--faint); font-size: var(--fs-cap); padding: 6px 2px; }

.panel { display: flex; flex-direction: column; gap: 6px; }
.gitem { font-size: var(--fs-cap); padding: 7px 9px; border-radius: 6px; border-left: 3px solid var(--line); background: var(--raised); }
.gitem.blind { border-left-color: var(--blind); }
.gitem.telemetry { border-left-color: var(--partial); }
.gitem.uncorrelated { border-left-color: var(--covered); }
.gitem.bundle, .gitem.siem, .gitem.category { border-left-color: var(--accent); }
.gitem .gt { font-weight: 600; }

.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip { font-size: var(--fs-sm); padding: 2px 8px; border-radius: 20px; background: var(--raised);
  border: 1px solid var(--line); color: var(--mut); }
.chip.tap { color: var(--strong); border-color: var(--strong); }

/* tabs + views */
.tabs { display: flex; gap: 6px; margin-bottom: 14px; border-bottom: 1px solid var(--line); }
.tab { border: none; border-bottom: 2px solid transparent; border-radius: 0; background: transparent;
  color: var(--mut); padding: 8px 12px; }
.tab:hover { color: var(--ink); }
.tab.on { color: var(--ink); border-bottom-color: var(--accent); }
.view.hidden { display: none; }

/* CDM grid */
.cdm-table { border-collapse: separate; border-spacing: 4px; width: 100%; }
.cdm-table th { color: var(--mut); font-size: var(--fs-sm); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; padding: 4px; }
.cdm-table th.rowh { text-align: right; white-space: nowrap; }
.cdm-table .cell { vertical-align: top; border-radius: 6px; padding: 6px; height: 78px; width: 18%;
  border: 1px solid var(--line); background: var(--raised); position: relative; }
.cdm-table .cell.gap { background: #2a1414; border-color: #5b2020; }
.cdm-table .cell.over { background: #2e2410; border-color: #6b531a; }
.cdm-table .cell.ok { background: #16241a; border-color: #2c4a32; }
.cdm-table .cnt { position: absolute; top: 4px; right: 7px; color: var(--faint); font-size: var(--fs-sm); }
.cellnames { display: flex; flex-direction: column; gap: 2px; }
.cellnames span { font-size: var(--fs-xs); color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* telemetry flow */
.flowcols { display: grid; grid-template-columns: 1fr 0.9fr 1fr; gap: 14px; }
.flowhd { color: var(--faint); font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: .6px; margin-bottom: 8px; }
.flowcard { background: var(--raised); border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px; margin-bottom: 6px; }
.flowcard b { font-size: var(--fs-base); }
.flowcard .chips { margin-top: 5px; }
.busitem { display: flex; justify-content: space-between; align-items: center; padding: 6px 9px;
  border-radius: 5px; margin-bottom: 4px; font-size: var(--fs-cap); border: 1px solid var(--line); }
.busitem.busok { background: #16241a; border-color: var(--strong); color: var(--ink); }
.busitem.busemit { background: #2e2410; border-color: var(--partial); color: var(--ink); }
.busitem.busdark { background: var(--surface); color: var(--faint); }
.busitem .mono { color: var(--mut); font-size: var(--fs-sm); }

/* integration graph */
.edge { display: grid; grid-template-columns: 1fr 24px 1fr 120px 50px; align-items: center; gap: 8px;
  padding: 7px 10px; background: var(--raised); border: 1px solid var(--line); border-radius: 6px; margin-bottom: 5px; }
.edge .ep { font-size: var(--fs-base); }
.edge .arrow { text-align: center; color: var(--accent); }
.edge .etype { font-size: var(--fs-sm); color: var(--mut); font-family: ui-monospace, monospace; }
.edge .eff { font-size: var(--fs-xs); text-align: center; padding: 1px 6px; border-radius: 20px; }
.edge .eff-low { background: #16341f; color: #4ade80; }
.edge .eff-med { background: #3a2a0c; color: #fbbf24; }
.edge .eff-high { background: #3a1212; color: #f87171; }
.edge .edata { grid-column: 1 / -1; font-size: var(--fs-sm); color: var(--faint); }

/* AI horizon (future ATT&CK) */
.tabnew { font-family: var(--mono); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .6px; color: var(--bg);
  background: var(--accent); border-radius: 3px; padding: 1px 4px; margin-left: 5px; vertical-align: middle; font-weight: 700; }
.hz-intro { font-size: var(--fs-base); line-height: 1.55; color: var(--mut); background: var(--surface);
  border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 8px; padding: 12px 14px; margin-bottom: 12px; }
.hz-intro a { color: var(--accent); }
.hz-intro b { color: var(--ink); }
.hz-atlas { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 11px 14px; margin-bottom: 12px; }
.hz-atlas-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 9px; }
.hz-atlas-title { font-size: var(--fs-base); font-weight: 600; color: var(--ink); }
.hz-atlas-score { font-size: var(--fs-cap); color: var(--mut); }
.atlas-strip { display: flex; flex-wrap: wrap; gap: 5px; }
.acell { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-xs); color: var(--mut);
  padding: 3px 8px 3px 6px; border: 1px solid var(--line); border-left-width: 2px; border-radius: 5px; background: var(--raised); }
.acell .adot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.hz-atlas-note { font-size: var(--fs-sm); color: var(--faint); margin-top: 9px; }
.hz-list { display: flex; flex-direction: column; gap: 10px; }
.hzcard { background: var(--raised); border: 1px solid var(--line); border-left: 3px solid var(--line);
  border-radius: 8px; padding: 12px 14px; }
.hzhead { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.hzid { color: var(--faint); font-size: var(--fs-sm); }
.hzname { font-weight: 600; font-size: var(--fs-md); flex: 1; }
.hzbadges { display: flex; gap: 6px; align-items: center; }
.hzb { font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .5px; padding: 1px 7px; border-radius: 20px;
  border: 1px solid var(--line); color: var(--mut); }
.hzb.cls-ceiling { color: #f87171; border-color: #5b2020; }
.hzb.cls-floor { color: #fbbf24; border-color: #6b531a; }
.hzb.hz-observed { color: #f87171; border-color: #5b2020; }
.hzb.hz-emerging { color: #fbbf24; border-color: #6b531a; }
.hzb.hz-anticipated { color: var(--mut); }
.hzready { font-size: var(--fs-xs); font-weight: 700; letter-spacing: .6px; padding: 2px 9px; border-radius: 20px; border: 1px solid; }
.hzdesc { font-size: var(--fs-base); color: var(--ink); margin: 9px 0 7px; line-height: 1.5; }
.hzgap { font-size: var(--fs-cap); color: var(--mut); line-height: 1.5; margin-bottom: 8px; }
.hzgap b { color: var(--accent); font-weight: 600; }
.hzmapped { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.tchip { font-size: var(--fs-xs); padding: 1px 7px; border-radius: 5px; border: 1px solid var(--line); background: #15151b; }
.hzwhy { display: flex; flex-direction: column; gap: 3px; margin-bottom: 8px; }
.hzwhy .why { font-size: var(--fs-sm); color: var(--mut); padding-left: 12px; position: relative; }
.hzwhy .why::before { content: "›"; position: absolute; left: 0; color: var(--faint); }
.hztel { font-size: var(--fs-sm); display: flex; flex-wrap: wrap; gap: 5px; align-items: center; margin-bottom: 6px; }
.hztel .tellbl { color: var(--faint); }
.hzsrc { font-size: var(--fs-sm); }
.hzsrc a { color: var(--faint); }
.hzsrc a:hover { color: var(--accent); }

/* stack map (line-map of the integration graph) */
.mapwrap { width: 100%; }
.mapsvg { width: 100%; height: auto; display: block; }
.mcolhd { fill: var(--faint); font-family: var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.medge { fill: none; stroke-width: 1.5; opacity: .28; transition: opacity .15s, stroke-width .15s; } /* calmer resting hairball; hover reveals the relevant edges */
.medge.dim { opacity: .04; }
.medge.hot { opacity: 1; stroke-width: 2.5; }
.mnode { cursor: pointer; transition: opacity .15s; }
.mnode.dim { opacity: .22; }
.mnode circle { stroke: var(--bg); stroke-width: 1.5; }
.mnode:hover circle { stroke: var(--ink); }
.mnodelbl { fill: var(--ink); font-size: var(--fs-sm); font-family: var(--sans);
  paint-order: stroke; stroke: var(--bg); stroke-width: 3.5px; stroke-linejoin: round; }
.map-legend { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 12px; font-size: var(--fs-sm); color: var(--mut); }
.mleg { display: inline-flex; align-items: center; gap: 6px; }
.mleg.mut { color: var(--faint); margin-left: auto; }
.mswatch { width: 16px; height: 3px; border-radius: 2px; display: inline-block; }
.mnode.focus circle { stroke: var(--accent); stroke-width: 2.5; }

/* stack-map controls + legend */
.map-controls { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.mctl-lbl, .mleg-lbl { font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: .08em;
  text-transform: uppercase; color: var(--faint); }
.mapbtn { font-family: var(--mono); font-size: var(--fs-xs); letter-spacing: .03em; padding: 4px 9px;
  color: var(--mut); background: var(--raised); border: 1px solid var(--line); border-radius: 6px; cursor: pointer; }
.mapbtn:hover { border-color: var(--accent); color: var(--ink); }
.mapbtn.on { color: var(--accent-ink); border-color: var(--accent); background: rgba(226,80,74,.08); }
.mleg-key { display: inline-flex; align-items: center; gap: 10px; }
.mdot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex: none; }
.mleg.static { color: var(--mut); }                 /* non-interactive node-color key */
button.mleg { font-family: var(--mono); font-size: var(--fs-xs); padding: 3px 9px; color: var(--mut);
  background: var(--raised); border: 1px solid var(--line); border-radius: 20px; cursor: pointer;
  transition: opacity .15s, border-color .15s, color .15s; }
button.mleg:hover { border-color: var(--line-strong); color: var(--ink); }
button.mleg.off { opacity: .4; }                    /* edge-type filter disabled — now visibly dimmed */
button.mleg.off .mswatch { filter: grayscale(1); }

/* cost & swap */
.profile { display: flex; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.pf { display: flex; flex-direction: column; gap: 3px; font-size: var(--fs-sm); color: var(--mut); }
.pf input { width: 100px; padding: 5px 7px; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
.costsum { display: flex; gap: 28px; align-items: baseline; padding: 12px 14px; background: var(--raised);
  border: 1px solid var(--line); border-radius: 8px; margin-bottom: 10px; }
.costsum .big { font-family: var(--mono); font-size: var(--fs-2xl); font-weight: 700; }
.siemcost { font-size: var(--fs-cap); color: var(--mut); padding: 2px 0; }
.volrow { display: grid; grid-template-columns: 200px 1fr 50px; align-items: center; gap: 10px; padding: 3px 0; }
.volrow .vn { font-size: var(--fs-cap); }
.vtrack { height: 12px; background: #15151b; border-radius: 4px; border: 1px solid var(--line); overflow: hidden; }
.vfill { height: 100%; background: var(--accent); }
.volrow .vg { text-align: right; font-size: var(--fs-sm); color: var(--mut); }
.note { color: var(--faint); font-size: var(--fs-sm); margin: 8px 0 4px; }
.swapblock { margin-top: 10px; }
.swaphd { font-size: var(--fs-cap); color: var(--mut); margin-bottom: 5px; }
.altlist { display: flex; flex-wrap: wrap; gap: 6px; }
.alt { text-align: left; background: var(--raised); border: 1px solid var(--line); border-radius: 6px; padding: 6px 9px; font-size: var(--fs-cap); }
.alt b { font-weight: 600; }
.alt .d { font-size: var(--fs-sm); margin-left: 4px; }
.alt .d.good { color: #4ade80; }
.alt .d.bad { color: #f87171; }

/* save / share */
.save-btn { background: var(--raised); border-color: var(--accent); color: var(--accent-ink); font-family: var(--mono); font-size: var(--fs-cap); letter-spacing: .02em; }
.save-btn:hover { background: rgba(226,80,74,.08); }

/* toast (used by toast() in app.js) */
#toast { position: fixed; bottom: 56px; left: 50%; transform: translateX(-50%) translateY(8px);
  background: var(--raised); color: var(--ink); border: 1px solid var(--accent);
  padding: 8px 16px; border-radius: 8px; font-size: var(--fs-base); z-index: 50;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; box-shadow: 0 8px 24px rgba(0,0,0,.4); }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Loadout handoff banner — the capability slots Loadout sent, ticking off as products fill them */
.handoff { background: var(--surface); border: 1px solid var(--accent); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 12px 14px; margin-bottom: 14px; }
.handoff.hidden { display: none; }
.handoff-h { display: flex; align-items: center; gap: 8px; font-size: var(--fs-base); color: var(--mut); margin-bottom: 10px; }
.handoff-h b { color: var(--ink); font-weight: 600; }
.handoff-prog { font-family: var(--mono); color: var(--accent-ink); }
.handoff-x { margin-left: auto; background: transparent; border: none; color: var(--faint); font-size: var(--fs-cap); padding: 0 4px; }
.handoff-x:hover { color: var(--ink); border-color: transparent; }
.handoff-slots { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.hslot { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-sm); padding: 4px 9px;
  background: var(--raised); border: 1px solid var(--line); border-radius: 20px; color: var(--mut); }
.hslot:hover { border-color: var(--line-strong); color: var(--ink); }
.hslot.on { border-color: var(--accent); color: var(--ink); }
.hslot.done { color: var(--ink); }
.hslot.done .hdot { background: var(--strong) !important; box-shadow: 0 0 0 2px rgba(34,184,78,.25); }
.hdot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.hn { color: var(--faint); font-size: var(--fs-xs); font-family: var(--mono); }
.handoff-ctl { display: flex; gap: 6px; }
.handoff-all { font-size: var(--fs-xs); font-family: var(--mono); letter-spacing: .03em; padding: 3px 9px;
  background: transparent; border: 1px solid var(--line); border-radius: 6px; color: var(--mut); }
.handoff-all:hover { border-color: var(--accent); color: var(--ink); }
.handoff-all.on { color: var(--accent-ink); border-color: var(--accent); }

/* keyboard accessibility — visible focus ring for keyboard users only (mouse clicks stay clean) */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.mnode:focus-visible circle { stroke: var(--accent); stroke-width: 2.5; }

/* respect reduced-motion: kill transitions/animations for users who ask for it */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* recent stacks (left palette) */
.recent { margin-bottom: 14px; }
.recent.hidden { display: none; }
.recent-h { color: var(--faint); font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: .8px; margin-bottom: 6px; }
.ritem { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 6px;
  border: 1px solid var(--line); background: var(--raised); cursor: pointer; margin-bottom: 4px; }
.ritem:hover { border-color: var(--accent); }
.ritem .rlabel { flex: 1; font-size: var(--fs-cap); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ritem .rcount { color: var(--faint); font-size: var(--fs-sm); }

/* onboarding empty state (board) */
#onboard { display: none; align-items: center; justify-content: center; min-height: 58vh; }
.board.onboarding .tabs, .board.onboarding .view { display: none; }
.board.onboarding #onboard { display: flex; }
.ob-card { max-width: 540px; text-align: center; padding: 24px; }
.ob-h { font-family: var(--display); font-weight: 500; font-size: var(--fs-2xl); letter-spacing: -.01em; margin: 0 0 12px; }
.ob-p { color: var(--mut); font-size: var(--fs-base); line-height: 1.6; margin: 0 0 18px; }
.ob-presets { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 12px; }
.ob-btn { background: var(--raised); border: 1px solid var(--line-strong); padding: 9px 14px; border-radius: 8px; font-size: var(--fs-base); }
.ob-btn:hover { border-color: var(--accent); }
.ob-hint { color: var(--faint); font-size: var(--fs-cap); margin: 0; }

/* mobile reflow — desktop-first layout untouched above this breakpoint */
@media (max-width: 860px) {
  body { height: auto; min-height: 100vh; }
  .top { flex-direction: column; align-items: flex-start; gap: 8px; position: static; }
  .actions { flex-wrap: wrap; }
  .grid { grid-template-columns: 1fr; }
  .palette, .side, .board { overflow: visible; }
  .board { order: 1; } .palette { order: 2; } .side { order: 3; }
  .palette { border-right: none; border-top: 1px solid var(--line); }
  .side { border-left: none; border-top: 1px solid var(--line); }
  .tabs { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
  .tab { white-space: nowrap; flex: none; }
  .trow { grid-template-columns: 124px 1fr 84px; }
  .scorebar { flex-wrap: wrap; gap: 8px; }
  #onboard { min-height: 40vh; }
}