/* Full workspace (M2-06; M2c layout pass WALK-08: no fixed pixel widths, canvases size from their column). Tokens copied from the Simple screen's style.css, not imported. */
:root{--bg:#0f1218;--fg:#e8ebf0;--muted:#9aa3b2;--acc:#63b3ff;--warn:#ffb454;--beam:#ffd166;--card:#171b23;--line:#2a3140;--bad:#ff6b6b}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:13px/1.4 system-ui,sans-serif}
header{display:flex;align-items:baseline;gap:16px;padding:8px 16px;border-bottom:1px solid var(--line);flex-wrap:wrap}h1{font-size:17px;margin:0}h2{font-size:13px;margin:0 0 6px;display:flex;gap:8px;align-items:baseline;flex-wrap:wrap}
.tag{font-size:11px;background:var(--warn);color:#000;padding:1px 6px;border-radius:4px;margin-left:8px;vertical-align:middle}.ws{font-size:12px;color:var(--muted);margin-left:8px}
.tabs{display:flex;gap:4px}.tab{background:#0b0e13;color:var(--muted);border:1px solid var(--line);border-radius:4px 4px 0 0;padding:3px 10px;cursor:pointer}.tab.on{color:var(--fg);border-bottom-color:var(--acc);background:var(--card)}
.status{margin-left:auto;font-family:ui-monospace,monospace;font-size:12px;color:var(--muted)}.status.pending{color:var(--warn)}.status.stale{color:var(--bad)}
.banner{background:#3a1c1c;color:#ffb4b4;border-bottom:1px solid var(--bad);padding:6px 16px;font-size:12px}
/* three fluid columns: the two view/plot columns share the width, the aside takes what it needs; nothing is a fixed pixel width */
main.beam{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr) minmax(300px,0.72fr);gap:12px;padding:10px 16px;align-items:start}
main.atlas{padding:10px 16px}
main[hidden]{display:none}   /* the grid display rule must not override the hidden attribute (tab switch, WALK-13) */
header a.btn{color:var(--acc);border:1px solid var(--acc);border-radius:4px;padding:3px 10px;text-decoration:none;background:#0b0e13}header a.btn:hover{background:var(--card)}   /* WALK-14: the back link was an unstyled (visited-purple) link */
.panel{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:8px 10px;min-width:0}
.panel.span2{grid-column:1/3}.col3{grid-column:3;grid-row:1/4;display:flex;flex-direction:column;gap:12px;min-width:0}
/* the two chamber views fill their halves of the panel; the canvases are sized from these containers by full.js (ResizeObserver) */
.views{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}.view{min-width:0}
canvas{background:#12151c;border:1px solid var(--line);border-radius:4px;max-width:100%;display:block}
canvas[data-fit]{width:100%;height:auto}
.revlab{margin-left:auto;font:11px ui-monospace,monospace;color:var(--muted)}.revlab.stale{color:var(--bad)}
.muted{color:var(--muted)}.small{font-size:12px}.mono{font-family:ui-monospace,monospace;font-size:11.5px}.row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:5px 0}
.layers label{margin-right:6px;white-space:nowrap}
.sw{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:3px;vertical-align:-1px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}.cell{min-width:0}.cellhead{display:flex;gap:4px;align-items:center;margin-bottom:4px}.cellhead select{flex:1 1 auto;min-width:0}.cellnote{min-height:14px}
button.help{font-size:11px;padding:0 6px;border-radius:50%;color:var(--acc);border-color:var(--acc);cursor:help;line-height:16px;flex:0 0 auto}
.helptext{background:#0b0e13;border:1px solid var(--line);border-radius:4px;padding:5px 8px;margin:0 0 4px;color:var(--fg)}
.atlasgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:12px}
.ctl{display:grid;grid-template-columns:1fr minmax(90px,150px) 84px 34px;align-items:center;gap:6px;margin:4px 0}.ctl label{font-size:12px}.ctl .ra{grid-column:1/5;font:11px ui-monospace,monospace;color:var(--muted);margin:-2px 0 4px}
.ctl .sub{grid-column:1/5;margin:0 0 2px}.ctl .ra .stale{color:var(--bad)}.ctl .ra .pend{color:var(--warn)}
.band{position:relative;height:6px;background:#0b0e13;border:1px solid var(--line);border-radius:3px;margin:0 0 3px}.band-fill{position:absolute;top:0;bottom:0;background:#4caf7a;opacity:.75;border-radius:3px}
.band .pt{position:absolute;top:-3px;width:2px;height:10px;background:var(--fg);opacity:.7}.band .cur{position:absolute;top:-4px;width:2px;height:12px;background:var(--beam)}
.explain.warn{color:var(--warn)}
input[type=range]{width:100%}input[type=number]{width:84px;background:#0b0e13;color:var(--fg);border:1px solid var(--line);border-radius:4px;padding:2px 4px;font-size:12px}
select,button{background:#0b0e13;color:var(--fg);border:1px solid var(--line);border-radius:4px;padding:3px 8px;font-size:12px}button.small{font-size:11px;padding:1px 6px}button:disabled{opacity:.4}
table.acct{border-collapse:collapse;width:100%;font-size:11.5px;font-family:ui-monospace,monospace}table.acct th,table.acct td{padding:2px 4px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}table.acct th:first-child,table.acct td:first-child{text-align:left}
table.acct tr.sub td{color:var(--muted)}table.acct tr.cens td{color:#4dd0e1}table.acct tr.fail td{color:var(--bad)}
#revs table{border-collapse:collapse;margin:4px 0}#revs td{padding:1px 6px 1px 0}#revs .stale{color:var(--bad)}#revs .pend{color:var(--warn)}
#prov{white-space:pre-wrap;word-break:break-all;margin-top:6px;color:var(--muted)}
.explain{color:var(--fg);margin:6px 0 0}
footer{padding:8px 16px;border-top:1px solid var(--line)}
@media (max-width:1260px){main.beam{grid-template-columns:1fr 1fr}.col3{grid-column:1/3;grid-row:auto;flex-direction:row;flex-wrap:wrap}.col3>.panel{flex:1 1 380px}}
@media (max-width:900px){main.beam{grid-template-columns:1fr}.panel.span2{grid-column:auto}.col3{grid-column:auto;flex-direction:column}.views{grid-template-columns:1fr}}

.tag.mach{background:#2b3a4f;color:#cfe3ff}.tag.mach.prototype{background:#4a3b1e;color:#ffd9a3}.tag.mach.resolved{background:#1f4a35;color:#b8f0cf}
#assets{white-space:pre-wrap;margin-top:6px;color:#9aa3b2}

/* M4-05: narrow widths and zoom */
@media (max-width:1500px){main.beam{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
@media (max-width:1000px){main.beam{grid-template-columns:1fr}.views{grid-template-columns:1fr}}

button:focus-visible,select:focus-visible,input:focus-visible,a:focus-visible{outline:2px solid var(--beam);outline-offset:2px}

.explain-box,.explain-entry{background:#0b0e13;border:1px solid var(--line);border-radius:6px;padding:8px 10px;margin:6px 0}.explain-entry p{margin:4px 0;line-height:1.45}
.cites{color:var(--muted);font-size:11px}.cite{background:#151a23;border:1px solid var(--line);border-radius:3px;padding:0 4px;margin-right:4px;cursor:help}#explain-sel{margin-left:12px}