:root {
  --bg: #131518;
  --panel: #1b1e22;
  --panel2: #22262b;
  --line: #30353c;
  --text: #e4e6e9;
  --muted: #8d949d;
  --accent: #f2a93b;
  --accent-ink: #1b1306;
  --sel: #f2a93b;
  --dirty: #ff6b4a;
  --ok: #4cc38a;
  --err: #ff6b6b;
  --oled: #9fd8ff;
  --t-cc: #5aa9ff;
  --t-rel: #49c6c6;
  --t-14: #b38cff;
  --t-prg: #e6c14c;
  --t-pb: #ff7fb5;
  --t-at: #ff9b5c;
  --t-note: #63d47a;
  --pad: #66b84a;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #eef0f2;
    --panel: #ffffff;
    --panel2: #f4f5f7;
    --line: #d6d9de;
    --text: #1d2024;
    --muted: #69707a;
    --accent: #d9861a;
    --accent-ink: #fff;
    --sel: #d9861a;
    --oled: #0b5b8f;
    --pad: #3f8f2a;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 13px/1.35 system-ui, -apple-system, 'Segoe UI', sans-serif;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto auto;
  overflow: hidden;
}

button, select, input { font: inherit; color: inherit; }
button {
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 10px;
  cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--muted); }
button:disabled { opacity: 0.4; cursor: default; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
button.danger { background: var(--err); color: #200; border-color: var(--err); }
button.small { padding: 2px 8px; font-size: 12px; }
select, input[type=text], input[type=number] {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 4px 6px;
}
select:disabled, input:disabled { opacity: 0.45; }
input:focus-visible, select:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---- top bar */
.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: 8px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 7px; font-weight: 800; font-size: 17px; letter-spacing: 0.5px; }
.brand .pad { width: 20px; height: 20px; color: var(--pad); }
.brand span { font-weight: 400; font-size: 13px; color: var(--muted); margin-left: 2px; }
.top .group { display: flex; align-items: center; gap: 6px; }
.top .file { margin-left: auto; }
.chip {
  padding: 3px 9px;
  border-radius: 99px;
  background: var(--panel2);
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
  max-width: 340px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chip.on { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 50%, var(--line)); }
.chip.wait { color: var(--accent); }
body:not(.connected) .top .dev button { display: none; }

/* ---- three columns */
.layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) 320px;
  min-height: 0;
}
#setups, #main, #inspector { overflow: auto; min-height: 0; }
#setups { background: var(--panel); border-right: 1px solid var(--line); padding: 8px 6px; }
#inspector { background: var(--panel); border-left: 1px solid var(--line); padding: 12px 14px; }
#main { padding: 14px 18px; }

/* ---- sidebar */
#setups button {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  text-align: left;
  background: none;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 4px 6px;
}
#setups button:hover { background: var(--panel2); }
#setups button.sel { background: color-mix(in srgb, var(--accent) 18%, transparent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.side-globals { margin-bottom: 8px; font-weight: 600; }
.side-globals .ico { color: var(--muted); width: 18px; text-align: center; }
#setups .num { color: var(--muted); width: 18px; text-align: right; font-variant-numeric: tabular-nums; font-size: 12px; }
#setups .nm { font-family: var(--mono); white-space: pre; flex: 1; }
.setup.open > .setup-row { font-weight: 600; }
.groups { margin: 2px 0 6px 14px; border-left: 1px solid var(--line); padding-left: 4px; }
.group-row { padding: 2px 6px !important; }
.st { width: 7px; height: 7px; border-radius: 50%; border: 1px solid var(--muted); }
.st.ok { background: var(--muted); }
.spin {
  width: 10px; height: 10px; border-radius: 50%;
  border: 2px solid var(--line); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--dirty); display: inline-block; margin-left: 4px; }
.devmark { color: var(--ok); font-size: 11px; }

/* ---- group header and grid */
.group-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.crumb { display: flex; align-items: center; gap: 8px; }
.crumb label { color: var(--muted); }
.crumb label b { color: var(--text); }
.crumb input.name { width: 74px; margin-right: 10px; }
input.name { font-family: var(--mono); font-size: 15px; letter-spacing: 1px; }
.nav { display: flex; gap: 6px; }

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 10px;
  max-width: 980px;
}
.cell {
  --tc: var(--line);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--tc);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 7px 8px 6px;
  position: relative;
  min-height: 112px;
  cursor: default;
}
/* Box edge colour = encoder type family; push boxes use the accent. */
.cell.tc0, .cell.tc1 { --tc: var(--t-rel); }
.cell.tc2 { --tc: var(--t-cc); }
.cell.tc3 { --tc: var(--t-prg); }
.cell.tc4, .cell.tc8 { --tc: var(--t-14); }
.cell.tc5 { --tc: var(--t-pb); }
.cell.tc6 { --tc: var(--t-at); }
.cell.tc7 { --tc: var(--t-note); }
.cell.tp { --tc: color-mix(in srgb, var(--accent) 60%, var(--line)); }
.cell.ghost { background: var(--panel); opacity: 0.4; padding: 0; }
.cell.sel { border-color: var(--sel); border-left-color: var(--tc); box-shadow: 0 0 0 1px var(--sel); background: color-mix(in srgb, var(--accent) 7%, var(--panel)); }
.cell.focus { box-shadow: 0 0 0 2px var(--sel); }
.cell.dirty::after {
  content: ''; position: absolute; top: 7px; right: 7px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--dirty);
}
.cell.flash { animation: flash 0.6s ease-out; }
@keyframes flash { from { background: color-mix(in srgb, var(--ok) 45%, transparent); } }
.cell .line1 { display: flex; align-items: center; gap: 6px; padding-right: 10px; }
.cell input.name { width: 66px; font-size: 14px; padding: 2px 5px; }
.idx { color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; min-width: 14px; }
.link { color: var(--accent); font-size: 12px; }
.frow { display: flex; align-items: center; gap: 4px; min-width: 0; }
.frow.off .cn { opacity: 0.35; }
.frow .fl { color: var(--muted); font-size: 11px; min-width: 22px; }
.frow .sep { color: var(--muted); font-size: 11px; }
.frow .note { color: var(--muted); font-size: 11px; font-family: var(--mono); }
select.cs { font-size: 12px; padding: 2px 2px; min-width: 0; flex: 1 1 0; max-width: 80px; }
input.cn { width: 48px; font-size: 12px; padding: 2px 4px; font-variant-numeric: tabular-nums; -moz-appearance: textfield; }
input.cn::-webkit-inner-spin-button, input.cn::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input.cn:disabled, select.cs:disabled { opacity: 0.35; }
.cell .other {
  margin-top: auto; border: 0; border-top: 1px dashed var(--line); border-radius: 0; background: none;
  padding: 4px 0 0; text-align: left; width: 100%; font-size: 11px; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cell .other:hover { color: var(--text); }
.pico { color: var(--muted); font-size: 9px; }
.pmode { color: var(--muted); font-size: 11px; }

/* bar above the grid */
.groupbar { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; max-width: 980px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.seg button { border: 0; border-radius: 0; padding: 4px 12px; background: var(--panel2); }
.seg button.on { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.selinfo { color: var(--muted); font-size: 12px; margin-right: auto; }
details.menu { position: relative; }
details.menu > summary {
  list-style: none; cursor: pointer; padding: 3px 10px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--panel2); font-size: 12px; user-select: none;
}
details.menu > summary::-webkit-details-marker { display: none; }
details.menu > summary::after { content: ' ▾'; color: var(--muted); }
details.menu[open] > summary { border-color: var(--muted); }
.menu-pop {
  position: absolute; right: 0; top: calc(100% + 4px); z-index: 20; min-width: 240px;
  display: flex; flex-direction: column; padding: 4px; gap: 2px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 6px 20px rgb(0 0 0 / 30%);
}
.menu-pop button { border: 0; background: none; text-align: left; display: flex; justify-content: space-between; gap: 16px; padding: 5px 8px; font-size: 12px; }
.menu-pop button:hover:not(:disabled) { background: var(--panel2); }
.kbd { color: var(--muted); font-size: 11px; }
button.icon { padding: 3px 9px; font-size: 15px; line-height: 1.2; }
.hint { color: var(--muted); font-size: 12px; }
.hint.center { text-align: center; max-width: 980px; }
.grid.placeholder .cell { min-height: 112px; }

/* ---- inspector */
.insp-title { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 10px; }
.insp-title .big { font-size: 17px; font-weight: 700; }
.insp-title .where { color: var(--muted); }
.insp-empty { color: var(--muted); padding-top: 20px; }
.tabs { display: flex; margin-bottom: 12px; border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.tabs button { flex: 1; border: 0; border-radius: 0; background: var(--panel2); }
.tabs button.on { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.fields .row, .globals .row { display: grid; grid-template-columns: 88px minmax(0, 1fr); align-items: center; gap: 4px 10px; padding: 5px 0; }
.row > label { color: var(--muted); }
.row .ctl { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; min-width: 0; }
.row .ctl select { max-width: 100%; min-width: 0; text-overflow: ellipsis; }
.row.disabled > label { opacity: 0.5; text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--muted) 60%, transparent); }
.row .note { grid-column: 2; color: var(--muted); font-size: 11px; line-height: 1.3; }
input.num { width: 76px; font-variant-numeric: tabular-nums; }
.pair { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.sublabel { color: var(--muted); font-size: 11px; }
.check { display: flex; align-items: center; gap: 6px; }
.warn { margin-top: 8px; padding: 6px 8px; border-radius: 6px; background: color-mix(in srgb, var(--dirty) 15%, transparent); color: var(--text); font-size: 12px; }
details.addr { margin-top: 14px; color: var(--muted); font-size: 12px; }
details.addr summary { cursor: pointer; }
details.addr table { border-collapse: collapse; margin-top: 6px; font-family: var(--mono); font-size: 11px; }
details.addr td { padding: 1px 8px 1px 0; }
details.addr tr.chg td { color: var(--dirty); }

/* ---- globals and welcome */
.globals { max-width: 620px; }
.globals .row { grid-template-columns: 130px minmax(0, 1fr); }
.globals h2 { margin: 0 0 10px; font-size: 18px; }
.globals h3 { margin: 22px 0 4px; font-size: 14px; color: var(--muted); }
.globals input[type=range] { width: 200px; }
.welcome { max-width: 600px; margin: 40px auto; text-align: center; }
.welcome h2 { font-size: 22px; }
.welcome .lead, .about .lead { font-size: 14px; line-height: 1.5; }
.notice { text-align: left; margin: 16px 0; padding: 4px 14px; border: 1px solid var(--line); border-left: 3px solid var(--pad); border-radius: 6px; background: var(--panel); }
.about { max-width: 520px; }
a { color: var(--accent); }
.welcome-actions { display: flex; gap: 10px; justify-content: center; margin: 18px 0; }

/* ---- status bar, log */
#status {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 5px 14px;
  background: var(--panel);
  border-top: 1px solid var(--line);
  min-height: 32px;
  font-size: 12px;
}
#status .msg { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#status .msg.error { color: var(--err); }
#status .msg.ok { color: var(--ok); }
#status .job { display: flex; align-items: center; gap: 8px; white-space: nowrap; }
#status progress { width: 160px; accent-color: var(--accent); }
#status .right { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: 4px 12px; min-width: 0; }
#status .right > * { white-space: nowrap; }
.pend.has { color: var(--dirty); }
.devstate { color: var(--ok); }
.tog { display: inline-flex; align-items: center; gap: 4px; color: var(--muted); cursor: pointer; }
#log {
  margin: 0;
  max-height: 180px;
  overflow: auto;
  padding: 6px 14px;
  background: var(--bg);
  border-top: 1px solid var(--line);
  font: 11px/1.4 var(--mono);
  color: var(--muted);
}

/* ---- mock panel */
#mockpanel { background: var(--panel2); border-top: 1px solid var(--line); padding: 8px 14px 10px; }
.mock-head { margin-bottom: 6px; }
.mock-body { display: flex; gap: 22px; align-items: flex-start; flex-wrap: wrap; }
.mock-unit { display: flex; flex-direction: column; gap: 8px; }
.oled {
  background: #000;
  color: var(--oled);
  font: 13px/1.25 var(--mono);
  padding: 6px 10px;
  border-radius: 4px;
  border: 1px solid #333;
  white-space: pre;
}
@media (prefers-color-scheme: light) { .oled { color: #9fd8ff; } }
.oled .otop { color: #fff; opacity: 0.8; }
.oline span { margin-right: 1ch; }
.oline span.inv { background: #9fd8ff; color: #000; }
.mock-keys { display: flex; gap: 14px; }
.stepper { display: flex; align-items: center; gap: 5px; }
.stepper b { width: 18px; text-align: center; font-variant-numeric: tabular-nums; }
.mknobs { display: grid; grid-template-columns: repeat(4, 34px); gap: 8px; }
.mknob {
  width: 34px; height: 34px; border-radius: 50%;
  background: #2b2f35; border: 1px solid #444;
  cursor: ns-resize; touch-action: none; user-select: none;
  display: grid; place-items: center;
}
.mknob:active { border-color: var(--accent); }
.mknob .cap { width: 26px; height: 26px; border-radius: 50%; background: #3a3f46; position: relative; }
.mknob .cap::after { content: ''; position: absolute; left: 12px; top: 2px; width: 2px; height: 8px; background: #ddd; border-radius: 1px; }
.mock-opts { display: flex; flex-direction: column; gap: 6px; }
.faults { display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: center; }
.mock-btns { display: flex; gap: 6px; }

/* ---- dialog */
dialog { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); color: var(--text); padding: 0; max-width: 480px; }
dialog::backdrop { background: rgb(0 0 0 / 45%); }
.modal { padding: 16px 18px; }
.modal h2 { margin: 0 0 8px; font-size: 16px; }
.modal-buttons { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }

@media (max-width: 1100px) {
  .layout { grid-template-columns: 180px minmax(0, 1fr) 290px; }
  .grid { grid-template-columns: repeat(4, minmax(110px, 1fr)); }
}