/* BÉTON — app.css : brutalist console skin. Monochrome slab, signal amber. */

:root {
  --ink: #e9e5da;
  --ink-dim: #b3ae9f;
  --muted: #85806f;
  --panel: #141412;
  --panel-2: #1c1c18;
  --line: #3a382f;
  --line-hi: #5c584a;
  --accent: #ffb000;
  --alarm: #d2452a;
  --bg: #0b0b09;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0; height: 100%;
  background: var(--bg); color: var(--ink);
  font-family: var(--mono);
  overflow: hidden;
}

#app { position: fixed; inset: 0; }

#view {
  position: absolute; inset: 0; width: 100%; height: 100%;
  display: block; background: #c9ccd0;
}

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

#topbar {
  position: absolute; top: 0; left: 0; right: 0; height: 58px;
  display: flex; align-items: stretch;
  background: var(--panel);
  border-bottom: 1px solid var(--line-hi);
  z-index: 5;
}

.brand {
  display: flex; flex-direction: column; justify-content: center;
  padding: 0 18px; min-width: 300px;
  border-right: 1px solid var(--line-hi);
}
.brand .mark {
  font-size: 26px; font-weight: 700; letter-spacing: 0.22em;
  line-height: 1;
}
.brand .mark::after { content: "▚"; color: var(--accent); margin-left: 8px; font-size: 18px; }
.brand .sub {
  margin-top: 5px; font-size: 9px; letter-spacing: 0.16em; color: var(--muted);
}

.tabs {
  display: flex; align-items: center; gap: 0;
  border-right: 1px solid var(--line-hi);
  padding: 0 8px;
}
.tabs button {
  appearance: none; background: transparent; color: var(--ink-dim);
  border: 1px solid transparent; padding: 8px 9px 7px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.10em;
  cursor: pointer; text-transform: uppercase; white-space: nowrap;
}
.tabs button .n {
  display: block; font-size: 8px; color: var(--muted); letter-spacing: 0.05em;
}
.tabs button:hover { color: var(--ink); border-color: var(--line-hi); }
.tabs button.on {
  color: #111; background: var(--accent); border-color: var(--accent);
}
.tabs button.on .n { color: #3a2a00; }

.ops { display: flex; align-items: center; gap: 6px; padding: 0 12px; margin-left: auto; }
.ops button {
  appearance: none; background: var(--panel-2); color: var(--ink-dim);
  border: 1px solid var(--line-hi); padding: 7px 9px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.10em;
  cursor: pointer; text-transform: uppercase;
}
.ops button:hover { color: var(--ink); border-color: var(--accent); }
.ops button.on { color: #111; background: var(--accent); border-color: var(--accent); }

/* ------------------------------------------------------------------- rails */

#left, #right {
  position: absolute; top: 58px; bottom: 36px;
  background: var(--panel); z-index: 4;
  overflow-y: auto; overflow-x: hidden;
  scrollbar-width: thin; scrollbar-color: var(--line-hi) transparent;
}
#left { left: 0; width: 268px; border-right: 1px solid var(--line-hi); }
#right { right: 0; width: 352px; border-left: 1px solid var(--line-hi); }

.railhead {
  padding: 9px 12px 7px;
  font-size: 9px; letter-spacing: 0.16em; color: var(--muted);
  border-bottom: 1px solid var(--line);
  display: flex; gap: 8px; align-items: center;
  background: var(--panel-2);
}
.railhead b { color: var(--accent); font-weight: 600; }
.railhead .hint { margin-left: auto; color: var(--muted); font-size: 8px; }

.stack { padding: 6px; display: flex; flex-direction: column; gap: 4px; }

.typ {
  display: grid; grid-template-columns: 26px 1fr auto;
  align-items: center; gap: 8px;
  padding: 7px 8px; cursor: pointer;
  border: 1px solid var(--line); background: transparent;
  color: var(--ink-dim); text-align: left;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em;
}
.typ .idx { color: var(--muted); font-size: 9px; }
.typ .glyph { color: var(--ink-dim); font-size: 13px; }
.typ:hover { border-color: var(--line-hi); color: var(--ink); }
.typ.on { border-color: var(--accent); color: var(--accent); background: #241d0c; }
.typ.on .glyph { color: var(--accent); }
.typ .desc { font-size: 8px; color: var(--muted); letter-spacing: 0.05em; }

.zonebtn {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 9px; border: 1px solid var(--line);
  background: transparent; color: var(--ink-dim); cursor: pointer;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em;
  text-align: left;
}
.zonebtn:hover { color: var(--ink); border-color: var(--line-hi); }
.zonebtn.on { border-color: var(--accent); color: var(--accent); background: #241d0c; }
.zonebtn .sw { width: 10px; height: 10px; border: 1px solid var(--line); }
.zonebtn .far { font-size: 8px; color: var(--muted); }

.tools { padding: 6px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.tools button {
  border: 1px solid var(--line); background: transparent; color: var(--ink-dim);
  padding: 7px 6px; font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.10em; cursor: pointer; text-transform: uppercase;
}
.tools button:hover { color: var(--ink); border-color: var(--line-hi); }
.tools button.on { background: var(--accent); color: #111; border-color: var(--accent); }

.seed {
  border: 1px solid var(--line); background: transparent; color: var(--ink-dim);
  padding: 7px 9px; text-align: left; cursor: pointer;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em;
}
.seed:hover { color: var(--ink); border-color: var(--line-hi); }
.seed.on { border-color: var(--accent); color: var(--accent); }

.railfoot {
  margin-top: 8px; padding: 8px 12px 12px; border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 3px;
  font-size: 8px; letter-spacing: 0.08em; color: var(--muted);
}

/* --------------------------------------------------------------- inspector */

#inspector { padding: 10px 12px; font-size: 10px; }
.ins-empty { color: var(--muted); font-size: 9px; letter-spacing: 0.08em; line-height: 1.6; }

.ins-title {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px solid var(--line-hi); padding-bottom: 6px; margin-bottom: 8px;
}
.ins-title .lot { font-size: 9px; color: var(--muted); letter-spacing: 0.12em; }
.ins-title .type { font-size: 13px; letter-spacing: 0.10em; color: var(--accent); }

.ins-zone {
  display: flex; justify-content: space-between; font-size: 9px;
  letter-spacing: 0.08em; color: var(--ink-dim); margin-bottom: 8px;
}
.ins-zone .far { color: var(--ink); }

.row { display: grid; grid-template-columns: 92px 1fr 46px; align-items: center; gap: 6px; margin: 7px 0; }
.row label { font-size: 9px; letter-spacing: 0.08em; color: var(--muted); text-transform: uppercase; }
.row input[type=range] {
  appearance: none; -webkit-appearance: none; width: 100%; height: 14px;
  background: transparent; cursor: pointer;
}
.row input[type=range]::-webkit-slider-runnable-track {
  height: 2px; background: var(--line-hi);
}
.row input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; height: 12px; width: 5px; margin-top: -5px;
  background: var(--accent); border: none;
}
.row input[type=range]::-moz-range-track { height: 2px; background: var(--line-hi); }
.row input[type=range]::-moz-range-thumb { height: 12px; width: 5px; background: var(--accent); border: none; }
.row .val { font-size: 9px; text-align: right; color: var(--ink); font-variant-numeric: tabular-nums; }

.ins-adv { margin-top: 10px; border-top: 1px solid var(--line); padding-top: 8px; }
.ins-adv.hidden { display: none; }
.ins-toggle {
  width: 100%; margin-top: 10px; padding: 6px 8px;
  border: 1px dashed var(--line-hi); background: transparent; color: var(--muted);
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.12em; cursor: pointer;
  text-transform: uppercase;
}
.ins-toggle:hover { color: var(--accent); border-color: var(--accent); }

.ins-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; margin-top: 10px; }
.ins-actions button {
  border: 1px solid var(--line-hi); background: transparent; color: var(--ink-dim);
  padding: 6px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.10em;
  cursor: pointer; text-transform: uppercase;
}
.ins-actions button:hover { color: var(--ink); border-color: var(--accent); }
.ins-actions button.alarm { color: var(--alarm); border-color: #5a2a1c; }

/* ------------------------------------------------------------------- audit */

#audit { padding: 10px 12px; font-size: 10px; }
.audit-ok { color: #8fa06a; font-size: 9px; letter-spacing: 0.10em; }
.audit-item {
  display: flex; gap: 8px; align-items: baseline;
  padding: 4px 0; border-bottom: 1px dashed var(--line);
  font-size: 9px; letter-spacing: 0.05em;
}
.audit-item .k { color: var(--alarm); width: 78px; }
.audit-item .t { color: var(--ink-dim); }
.audit-head { color: var(--muted); font-size: 8px; letter-spacing: 0.12em; margin-bottom: 6px; }

/* --------------------------------------------------------------------- hud */

#hud {
  position: absolute; bottom: 0; left: 0; right: 0; height: 36px;
  display: flex; align-items: center; gap: 22px; padding: 0 12px;
  background: var(--panel); border-top: 1px solid var(--line-hi);
  font-size: 9px; letter-spacing: 0.10em; color: var(--muted); z-index: 5;
  white-space: nowrap; overflow: hidden;
}
#hud span { white-space: nowrap; }
#hud #hud-stats { color: var(--ink-dim); }
#hud #hud-mode { color: var(--accent); }
#hud #hud-city { color: var(--ink); }
#hud #hud-hint { margin-left: auto; font-size: 8px; color: var(--muted); }

/* ------------------------------------------------------------------- toast */

#toast {
  position: absolute; bottom: 48px; left: 50%; transform: translateX(-50%);
  background: #241d0c; border: 1px solid var(--accent); color: var(--accent);
  padding: 7px 14px; font-size: 10px; letter-spacing: 0.12em;
  opacity: 0; transition: opacity 0.25s; pointer-events: none; z-index: 8;
  text-transform: uppercase;
}
#toast.show { opacity: 1; }

/* -------------------------------------------------------------------- help */

#help {
  position: absolute; inset: 0; background: rgba(8, 8, 6, 0.82);
  z-index: 9; display: flex; align-items: center; justify-content: center;
}
#help.hidden { display: none; }
.helpbox {
  width: 560px; max-width: 90vw; background: var(--panel);
  border: 1px solid var(--line-hi); padding: 18px;
}
.helph { font-size: 12px; letter-spacing: 0.18em; color: var(--accent); margin-bottom: 12px; }
.helpbox table { width: 100%; border-collapse: collapse; font-size: 10px; }
.helpbox td { padding: 5px 6px; border-bottom: 1px dashed var(--line); color: var(--ink-dim); }
.helpbox td:first-child { color: var(--ink); width: 110px; letter-spacing: 0.10em; }
.helpfoot { margin-top: 12px; font-size: 9px; color: var(--muted); letter-spacing: 0.08em; }

@media (max-width: 1100px) {
  #left { width: 210px; }
  #right { width: 280px; }
  .brand { min-width: 220px; }
  .brand .sub { display: none; }
}