:root {
  --bg: #f3f4f7; --panel: #ffffff; --panel-2: #eef0f4; --border: #dcdfe6; --text: #161a22; --muted: #5d6573;
  --accent: #6a4cf0; --accent-weak: #ece8ff; --pass: #157f3b; --fail: #b42318; --warn: #b25e00; --warn-weak: #fff4e5;
  --user: #6a4cf0;
  --canvas: #fbfbfd; --grid: #d9dce4; --dev: #1d4ed8; --wire: #0f7a46; --term: #c2410c; --label: #374151;
  --sel: #e11d48; --glyph: #6b21a8; --pin: #b45309;
  --plot-bg: #ffffff; --plot-grid: #eceef2;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1117; --panel: #151a23; --panel-2: #1b212c; --border: #2a3140; --text: #e6e9ef; --muted: #96a0b0;
    --accent: #9b87ff; --accent-weak: #261f4a; --pass: #4ade80; --fail: #f87171; --warn: #f0a43a; --warn-weak: #2c2414;
    --user: #5b45d6;
    --canvas: #0b0d12; --grid: #222838; --dev: #7fb2ff; --wire: #4ade80; --term: #fb923c; --label: #cbd5e1;
    --sel: #fb7185; --glyph: #d8b4fe; --pin: #fbbf24;
    --plot-bg: #0f131a; --plot-grid: #1f2633;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e1117; --panel: #151a23; --panel-2: #1b212c; --border: #2a3140; --text: #e6e9ef; --muted: #96a0b0;
  --accent: #9b87ff; --accent-weak: #261f4a; --pass: #4ade80; --fail: #f87171; --warn: #f0a43a; --warn-weak: #2c2414;
  --user: #5b45d6;
  --canvas: #0b0d12; --grid: #222838; --dev: #7fb2ff; --wire: #4ade80; --term: #fb923c; --label: #cbd5e1;
  --sel: #fb7185; --glyph: #d8b4fe; --pin: #fbbf24;
  --plot-bg: #0f131a; --plot-grid: #1f2633;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--text); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex; flex-direction: column; overflow: hidden; }
button, select, input, textarea { font: inherit; color: inherit; }
button { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 4px 10px; cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button:disabled { opacity: .55; cursor: not-allowed; }
button.mini { padding: 1px 7px; font-size: 12px; }
button.ghost { background: none; border-color: transparent; }
button.on { background: var(--accent-weak); border-color: var(--accent); color: var(--accent); }
select, input[type=text], input[type=number], textarea { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 4px 6px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-weak); border-color: var(--accent); }
.muted { color: var(--muted); } .small { font-size: 12.5px; } .mono { font-family: var(--mono); font-size: 12.5px; }
.spacer { flex: 1; } .error { color: var(--fail); }
.row { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
[hidden] { display: none !important; }

/* header */
.top { display: flex; align-items: center; gap: 16px; padding: 7px 14px; background: var(--panel); border-bottom: 1px solid var(--border); flex: none; }
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.logo { width: 28px; height: 28px; color: var(--accent); flex: none; }
.title { font-weight: 700; font-size: 15px; }
.subtitle { color: var(--muted); font-size: 11.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 40vw; }
.top-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.app-btn { font-weight: 600; }
.pill { font-size: 12px; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); white-space: nowrap; }
.pill::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--muted); margin-right: 6px; vertical-align: 1px; }
.pill.ok::before { background: var(--pass); } .pill.warn::before { background: var(--warn); } .pill.bad::before { background: var(--fail); }

/* shell */
.shell { flex: 1; min-height: 0; display: flex; }
.sidebar { width: 250px; flex: none; background: var(--panel); border-right: 1px solid var(--border); display: flex; flex-direction: column; min-height: 0; }
.side-section { padding: 8px 10px; border-bottom: 1px solid var(--border); display: flex; flex-direction: column; gap: 4px; min-height: 0; }
.side-section.grow { flex: 1; }
.side-head { display: flex; justify-content: space-between; align-items: center; font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.session-list { max-height: 26vh; overflow: auto; display: flex; flex-direction: column; }
.session { display: flex; align-items: center; gap: 6px; text-align: left; border: none; background: none; padding: 5px 6px; border-radius: 6px; width: 100%; }
.session.active { background: var(--accent-weak); }
.session .t { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.session .x { opacity: 0; font-size: 12px; padding: 0 4px; border: none; background: none; }
.session:hover .x { opacity: .7; }
.team-list { display: flex; flex-direction: column; gap: 1px; }
.team { display: flex; align-items: center; gap: 8px; border: none; background: none; text-align: left; padding: 4px 6px; border-radius: 6px; font-size: 13px; }
.team:hover { background: var(--panel-2); }
.team.active { background: var(--panel-2); font-weight: 650; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.memory-list { overflow: auto; flex: 1; font-size: 12.5px; }
.mem-scope { margin: 6px 0 2px; font-weight: 650; color: var(--muted); font-size: 11.5px; }
.mem { display: block; width: 100%; text-align: left; border: none; background: none; padding: 3px 6px; border-radius: 5px; }
.mem:hover { background: var(--panel-2); }
.mem .d { color: var(--muted); display: block; font-size: 11.5px; }

/* chat */
.chat { flex: 1; min-width: 320px; display: flex; flex-direction: column; min-height: 0; }
.chat-log { flex: 1; overflow: auto; padding: 16px 18px 8px; display: flex; flex-direction: column; gap: 12px; }
.welcome { margin: auto; max-width: 640px; text-align: center; }
.welcome h2 { margin: 0 0 6px; }
.suggest { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 12px; }
.suggest button { border-radius: 999px; font-size: 13px; }
.msg-user { align-self: flex-end; max-width: 78%; background: var(--user); color: #fff; padding: 8px 12px; border-radius: 12px 12px 4px 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg-user .to { font-size: 11px; opacity: .8; display: block; }
.turn { border-left: 3px solid var(--team, var(--accent)); padding: 2px 0 2px 12px; display: flex; flex-direction: column; gap: 6px; max-width: 900px; }
.turn.nested { margin-left: 18px; background: var(--panel-2); border-radius: 0 8px 8px 0; padding: 8px 10px 8px 12px; }
.turn-head { display: flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 650; color: var(--team, var(--accent)); }
.md p { margin: 0 0 6px; } .md p:last-child { margin: 0; }
.md ul, .md ol { margin: 2px 0 6px; padding-left: 20px; }
.md code { font-family: var(--mono); font-size: 12.5px; background: var(--panel-2); padding: 0 4px; border-radius: 4px; }
.md pre { background: var(--panel-2); padding: 8px 10px; border-radius: 6px; overflow: auto; font-size: 12.5px; }
.md table { border-collapse: collapse; font-size: 13px; } .md th, .md td { border-bottom: 1px solid var(--border); padding: 3px 8px; text-align: left; }
.tool { font-family: var(--mono); font-size: 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--panel); }
.tool > summary { cursor: pointer; padding: 4px 8px; list-style: none; display: flex; gap: 8px; align-items: baseline; }
.tool > summary::-webkit-details-marker { display: none; }
.tool .name { font-weight: 700; } .tool .args { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; min-width: 0; }
.tool .st { flex: none; } .tool .st.ok { color: var(--pass); } .tool .st.bad { color: var(--fail); } .tool .st.run { color: var(--accent); }
.tool .out { padding: 4px 8px 8px; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--muted); border-top: 1px solid var(--border); }
.thinking { font-size: 12px; color: var(--muted); } .thinking > div { white-space: pre-wrap; font-family: var(--mono); max-height: 200px; overflow: auto; }
.note { font-family: var(--mono); font-size: 12px; white-space: pre-wrap; background: var(--panel-2); border-radius: 6px; padding: 6px 10px; max-width: 900px; }
.event { font-size: 12px; color: var(--muted); }
.event button { font-size: 12px; padding: 0 8px; margin-left: 6px; }
.perm { border: 1px solid var(--warn); background: var(--warn-weak); border-radius: 8px; padding: 8px 12px; display: flex; gap: 10px; align-items: center; max-width: 900px; }
.perm .q { flex: 1; }
.cursor::after { content: "\258D"; color: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.composer { border-top: 1px solid var(--border); background: var(--panel); padding: 8px 12px; display: flex; flex-direction: column; gap: 6px; position: relative; }
.composer textarea { resize: none; border: none; padding: 6px 4px; max-height: 220px; overflow-y: hidden; background: transparent; }
.composer textarea:focus { outline: none; }
.composer-bar { display: flex; align-items: center; gap: 12px; }
.hint { position: absolute; bottom: 100%; left: 12px; right: 12px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 4px; box-shadow: 0 6px 20px rgba(0,0,0,.18); max-height: 260px; overflow: auto; }
.hint button { display: flex; gap: 10px; width: 100%; text-align: left; border: none; background: none; padding: 4px 8px; border-radius: 5px; font-size: 13px; }
.hint button.hl, .hint button:hover { background: var(--accent-weak); }
.hint .k { font-family: var(--mono); min-width: 140px; }

/* app pane */
.app-pane { width: 58%; min-width: 420px; flex: none; border-left: 1px solid var(--border); background: var(--panel); display: flex; flex-direction: column; min-height: 0; }
.app-pane.max { position: fixed; inset: 46px 0 0 0; width: auto; z-index: 5; }
.app-tabs { display: flex; align-items: center; gap: 6px; padding: 5px 8px; border-bottom: 1px solid var(--border); }
.app-tab-list { display: flex; gap: 4px; overflow-x: auto; min-width: 0; }
.app-tab { display: flex; align-items: center; gap: 6px; padding: 3px 8px; font-size: 12.5px; white-space: nowrap; }
.app-tab.active { background: var(--accent-weak); border-color: var(--accent); }
.app-tab .x { border: none; background: none; padding: 0 2px; font-size: 11px; opacity: .6; }
.app { flex: 1; min-height: 0; }

/* Primate DE */
.de { display: flex; }
.de-lib { width: 200px; flex: none; border-right: 1px solid var(--border); padding: 8px; display: flex; flex-direction: column; gap: 6px; min-height: 0; }
.de-tree { overflow: auto; font-size: 13px; flex: 1; }
.de-tree .lib { font-weight: 650; margin-top: 6px; display: flex; justify-content: space-between; }
.de-tree .lib .pdk { font-weight: 500; color: var(--muted); font-size: 11.5px; }
.de-tree .cell { display: flex; gap: 6px; align-items: center; width: 100%; text-align: left; border: none; background: none; padding: 2px 6px; border-radius: 5px; font-family: var(--mono); font-size: 12.5px; }
.de-tree .cell:hover { background: var(--panel-2); }
.de-tree .cell.active { background: var(--accent-weak); color: var(--accent); }
.de-tree .v { font-size: 10px; color: var(--muted); font-family: system-ui; }
.de-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.de-toolbar { display: flex; flex-direction: column; gap: 4px; padding: 4px 8px 6px; border-bottom: 1px solid var(--border); }
.code-edit .de-toolbar { flex-direction: row; flex-wrap: wrap; align-items: center; }
.toolrow { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.menubar { display: flex; gap: 2px; }
.menu { position: relative; border: none; background: none; padding: 2px 9px; font-size: 13px; border-radius: 5px; }
.menu:hover, .menu.on { background: var(--panel-2); }
.menu-drop { position: absolute; top: 100%; left: 0; z-index: 12; min-width: 250px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; padding: 4px; box-shadow: 0 8px 24px rgba(0,0,0,.22); text-align: left; max-height: 70vh; overflow: auto; cursor: default; }
.menu-sub { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 6px 8px 2px; }
.menu-item { display: flex; justify-content: space-between; gap: 16px; width: 100%; border: none; background: none; padding: 4px 8px; border-radius: 5px; font-size: 13px; text-align: left; color: var(--text); }
.menu-item:hover { background: var(--accent-weak); }
.menu-key, .kbd { font-family: var(--mono); font-size: 11.5px; color: var(--muted); }
.kbd { display: inline-flex; align-items: center; gap: 2px; border: 1px solid var(--border); border-radius: 4px; padding: 0 5px; background: var(--panel-2); }
.kbd .x { border: none; background: none; padding: 0 0 0 3px; font-size: 10px; }
.ro-tag { font-size: 11px; font-weight: 700; color: var(--warn); border: 1px solid var(--warn); border-radius: 4px; padding: 0 6px; }
.pick-list { max-height: 240px; min-width: 360px; overflow: auto; border: 1px solid var(--border); border-radius: 6px; padding: 3px; display: flex; flex-direction: column; }
.pick { text-align: left; border: none; background: none; padding: 3px 8px; border-radius: 4px; font-family: var(--mono); font-size: 12.5px; }
.pick:hover { background: var(--panel-2); } .pick.on { background: var(--accent-weak); color: var(--accent); }
.param-box { display: grid; gap: 4px; }
.kv { display: grid; grid-template-columns: 70px 1fr; gap: 6px; align-items: center; font-family: var(--mono); font-size: 12.5px; }
.modal-card h4 { margin: 6px 0 0; font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.issue-list { margin: 0; padding-left: 18px; font-size: 13px; max-height: 50vh; overflow: auto; }
.tree-list, .tree-list ul { list-style: none; padding-left: 16px; margin: 2px 0; font-size: 13px; }
.bk-table { max-height: 46vh; overflow: auto; display: flex; flex-direction: column; min-width: 560px; }
.bk-row { display: grid; grid-template-columns: 110px 1fr 150px 44px; gap: 8px; align-items: center; padding: 3px 2px; border-bottom: 1px solid var(--border); font-size: 13px; }
.bk-keys { display: flex; gap: 4px; flex-wrap: wrap; }
.inspector .keys { font-size: 12px; display: flex; flex-direction: column; gap: 2px; }
svg .note { fill: var(--label); font: 11px var(--mono); cursor: move; }
svg .note.sel { fill: var(--sel); }
svg .selbox { fill: rgba(106, 76, 240, .08); stroke: var(--accent); stroke-dasharray: 3 3; stroke-width: 1; }
svg .zoombox { fill: none; stroke: var(--sel); stroke-dasharray: 5 3; stroke-width: 1.2; }
.de-toolbar .sep { width: 1px; height: 20px; background: var(--border); margin: 0 4px; }
.de-toolbar .crumb { font-family: var(--mono); font-size: 12.5px; margin-right: 6px; }
.de-body { flex: 1; min-height: 0; display: flex; }
.canvas-wrap { flex: 1; min-width: 0; position: relative; background: var(--canvas); }
.canvas-wrap svg { width: 100%; height: 100%; display: block; user-select: none; }
.canvas-wrap .mode { position: absolute; left: 8px; bottom: 6px; font-size: 11.5px; color: var(--muted); background: var(--panel); border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; }
.inspector { width: 230px; flex: none; border-left: 1px solid var(--border); padding: 8px 10px; overflow: auto; font-size: 13px; display: flex; flex-direction: column; gap: 6px; }
.inspector h4 { margin: 4px 0 2px; font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.inspector label { display: grid; grid-template-columns: 56px 1fr; gap: 6px; align-items: center; font-family: var(--mono); font-size: 12px; }
.inspector input { width: 100%; font-family: var(--mono); font-size: 12px; padding: 2px 5px; }
.issues { font-size: 12px; color: var(--warn); }
.palette { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.palette button { font-size: 11.5px; padding: 3px 4px; }
svg .sym { stroke: var(--dev); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
svg .sym .fill { fill: var(--dev); stroke: none; }
svg .sym text { fill: var(--dev); stroke: none; font: 11px var(--mono); text-anchor: middle; }
svg .inst { cursor: move; }
svg .inst.sel .sym { stroke: var(--sel); } svg .inst.sel .sym text, svg .inst.sel .sym .fill { fill: var(--sel); }
svg .inst.pin .sym { stroke: var(--pin); }
svg .hit { fill: transparent; stroke: none; }
svg .term { fill: var(--term); cursor: crosshair; }
svg .term:hover { fill: var(--sel); }
svg .wire { stroke: var(--wire); stroke-width: 1.6; fill: none; }
svg .dotj { fill: var(--wire); }
svg .glyph { stroke: var(--glyph); stroke-width: 1.5; fill: none; }
svg .glyph-t { fill: var(--glyph); font: 10px var(--mono); }
svg .lbl { fill: var(--label); font: 10.5px var(--mono); }
svg .lbl.name { font-weight: 700; }
svg .netlbl { fill: var(--wire); font: 10px var(--mono); }
svg .rubber { stroke: var(--sel); stroke-dasharray: 4 3; stroke-width: 1.4; fill: none; }
svg .ghost { opacity: .45; }
.code-edit { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.code-edit textarea { flex: 1; font-family: var(--mono); font-size: 12.8px; line-height: 1.5; border: none; border-radius: 0; padding: 10px 12px; resize: none; tab-size: 2; }
.code-log { max-height: 40%; overflow: auto; font-family: var(--mono); font-size: 12px; white-space: pre-wrap; border-top: 1px solid var(--border); padding: 6px 10px; margin: 0; }
.empty { margin: auto; color: var(--muted); text-align: center; padding: 30px; }

/* PrimeProbe */
.probe { display: flex; }
.probe-side { width: 230px; flex: none; border-right: 1px solid var(--border); padding: 8px; display: flex; flex-direction: column; gap: 6px; overflow: auto; font-size: 13px; }
.probe-side select { width: 100%; }
.probe-side .sig { display: flex; gap: 6px; align-items: center; font-family: var(--mono); font-size: 12px; }
.probe-side .sig i { width: 10px; height: 3px; border-radius: 2px; flex: none; }
.probe-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.probe-main canvas { flex: 1; min-height: 0; width: 100%; display: block; background: var(--plot-bg); cursor: crosshair; }
.probe-read { border-top: 1px solid var(--border); padding: 6px 10px; font-family: var(--mono); font-size: 12px; max-height: 30%; overflow: auto; }
.probe-read table { border-collapse: collapse; } .probe-read td, .probe-read th { padding: 1px 10px 1px 0; text-align: left; }
.meas-row { display: flex; gap: 4px; flex-wrap: wrap; }
.meas-row select, .meas-row input { font-size: 12px; padding: 2px 4px; }

/* modal + toast */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 20; }
.modal-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; min-width: 340px; max-width: 92vw; max-height: 86vh; overflow: auto; display: flex; flex-direction: column; gap: 10px; }
.modal-card h3 { margin: 0; }
.modal-card .row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.modal-card .btns { display: flex; justify-content: flex-end; gap: 8px; }
.toast { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 8px 14px; border-radius: 8px; font-size: 13px; z-index: 30; }

@media (max-width: 1000px) {
  .sidebar { display: none; }
  .app-pane { position: fixed; inset: 46px 0 0 0; width: auto; min-width: 0; z-index: 5; }
  .de-lib, .inspector { display: none; }
}