:root {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --panel-2: #f0f2f6;
  --text: #17202c;
  --muted: #5d6878;
  --line: #dde2ea;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --ok: #15803d;
  --warn: #b45309;
  --bad: #c62828;
  --bad-text: #ffffff;
  --map-bg: #eef1f5;
  --map-grid: #d9dee6;
  --trail: #2563eb;
  --c1: #2563eb;
  --c2: #d97706;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f141b; --panel: #171e27; --panel-2: #1e2732; --text: #e6ebf2; --muted: #95a1b2;
    --line: #2a3542; --accent: #5b8cf5; --accent-text: #0b1220; --ok: #4ade80; --warn: #fbbf24;
    --bad: #ef5350; --bad-text: #ffffff; --map-bg: #121921; --map-grid: #243040; --trail: #6ea0ff;
    --c1: #6ea0ff; --c2: #f5a524; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f141b; --panel: #171e27; --panel-2: #1e2732; --text: #e6ebf2; --muted: #95a1b2;
  --line: #2a3542; --accent: #5b8cf5; --accent-text: #0b1220; --ok: #4ade80; --warn: #fbbf24;
  --bad: #ef5350; --bad-text: #ffffff; --map-bg: #121921; --map-grid: #243040; --trail: #6ea0ff;
  --c1: #6ea0ff; --c2: #f5a524; 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;
}
[hidden] { display: none !important; }
h1, h2 { margin: 0; font-weight: 650; }
h2 { font-size: 17px; }
code { font-size: 12px; background: var(--panel-2); padding: 1px 4px; border-radius: 4px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--bad); min-height: 1em; margin: 6px 0 0; }
.spacer { flex: 1; }

/* ---------- buttons, inputs ---------- */
.btn {
  border: 1px solid var(--line); background: var(--panel); color: var(--text);
  padding: 7px 12px; border-radius: 8px; font: inherit; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.danger { background: var(--bad); border-color: var(--bad); color: var(--bad-text); font-weight: 700; }
.btn.ghost { background: transparent; }
.btn.icon { padding: 6px 10px; }
.btn.active-control { background: var(--ok); border-color: var(--ok); color: #fff; }
input, select {
  font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 7px 9px; min-width: 0;
}
input:focus, select:focus, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------- login ---------- */
.login { min-height: 100%; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(360px, 100%); display: grid; gap: 12px; padding: 24px; }
.login-card label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }

/* ---------- layout ---------- */
.topbar {
  display: flex; align-items: center; gap: 10px; padding: 8px 16px;
  background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; flex: none;
}
.brand { font-size: 16px; }
.link-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--bad); }
.link-dot.on { background: var(--ok); }
.tabs { display: flex; gap: 2px; overflow-x: auto; }
.tabs button {
  border: 0; background: transparent; color: var(--muted); font: inherit; padding: 6px 10px;
  border-radius: 7px; cursor: pointer; white-space: nowrap;
}
.tabs button.active { background: var(--panel-2); color: var(--text); font-weight: 600; }
.who { color: var(--muted); white-space: nowrap; }
.badge {
  display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 99px;
  background: var(--panel-2); color: var(--muted); border: 1px solid var(--line);
}
.badge.ok { color: var(--ok); border-color: currentColor; }
.badge.warn { color: var(--warn); border-color: currentColor; }
.badge.bad { color: var(--bad); border-color: currentColor; }
/* app shell: top bar fixed, sidebar always full height, only the content scrolls */
#main { height: 100vh; height: 100dvh; display: flex; flex-direction: column; }
.layout { display: grid; grid-template-columns: 240px 1fr; flex: 1; min-height: 0; }
.sidebar { border-right: 1px solid var(--line); padding: 14px; background: var(--panel); overflow-y: auto; }
.sidebar h2 { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 8px; }
.content { padding: 16px; min-width: 0; display: grid; gap: 14px; align-content: start; overflow-y: auto; }
.tab { display: grid; gap: 14px; }
.only-mobile { display: none; }

.robot-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.robot-list li button {
  width: 100%; text-align: left; border: 1px solid transparent; background: transparent; color: var(--text);
  border-radius: 8px; padding: 8px; cursor: pointer; font: inherit; display: grid; gap: 2px;
}
.robot-list li button:hover { background: var(--panel-2); }
.robot-list li button.sel { background: var(--panel-2); border-color: var(--line); }
.robot-list .rname { display: flex; align-items: center; gap: 6px; font-weight: 600; }
.robot-list .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: none; }
.robot-list .dot.on { background: var(--ok); }

/* ---------- cards ---------- */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; min-width: 0; }
.card-title { font-weight: 600; margin-bottom: 10px; display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.robot-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.estop { min-width: 92px; font-size: 15px; }
.empty { display: grid; place-items: center; min-height: 40vh; color: var(--muted); }

.media { display: grid; grid-template-rows: auto 1fr; }
.cam-box { position: relative; background: #000; border-radius: 8px; aspect-ratio: 4 / 3; display: grid; place-items: center; overflow: hidden; }
.cam-box img { width: 100%; height: 100%; object-fit: contain; }
.cam-box img:not([src]) { display: none; }
.cam-box span { position: absolute; }
.map { width: 100%; aspect-ratio: 4 / 3; border-radius: 8px; background: var(--map-bg); display: block; }
.pane-body { position: relative; }
.pane-body > .view { display: none; }
.pane[data-view="3d"] .v-3d, .pane[data-view="tilt"] .v-tilt, .pane[data-view="camera"] .cam-box, .pane[data-view="map"] .map { display: block; }
.pane[data-view="camera"] .cam-box { display: grid; }
.v-3d, .v-tilt { width: 100%; aspect-ratio: 4 / 3; border-radius: 8px; overflow: hidden; background: var(--map-bg); }
.v-3d { cursor: grab; touch-action: none; position: relative; }
.hud { position: absolute; left: 10px; top: 8px; font-size: 12px; line-height: 1.4; color: var(--text);
       background: color-mix(in srgb, var(--panel) 80%, transparent); padding: 4px 8px; border-radius: 6px;
       pointer-events: none; font-variant-numeric: tabular-nums; }
.v-3d:active { cursor: grabbing; }
.v-3d canvas { display: block; width: 100% !important; height: 100% !important; }
.view-pick { padding: 4px 8px; font-weight: 600; }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; }
.tile .k { font-size: 12px; color: var(--muted); }
.tile .v { font-size: 20px; font-weight: 650; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile .s { font-size: 11px; color: var(--muted); }
.tile.warn .v { color: var(--warn); }
.tile.bad .v { color: var(--bad); }
.tile.ok .v { color: var(--ok); }

/* ---------- drive ---------- */
.drive { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.joy {
  width: 170px; height: 170px; border-radius: 50%; background: var(--panel-2); border: 1px solid var(--line);
  position: relative; touch-action: none; flex: none;
  background-image: linear-gradient(var(--line), var(--line)), linear-gradient(var(--line), var(--line));
  background-size: 1px 100%, 100% 1px; background-position: center; background-repeat: no-repeat;
}
.joy.disabled { opacity: .45; }
.knob {
  width: 56px; height: 56px; border-radius: 50%; background: var(--accent); position: absolute;
  left: 57px; top: 57px; box-shadow: 0 2px 6px rgba(0,0,0,.25); pointer-events: none;
}
.drive-side { display: grid; gap: 8px; flex: 1; min-width: 160px; }
.drive-side label { display: grid; gap: 4px; }
.readout { font-variant-numeric: tabular-nums; font-size: 13px; color: var(--muted); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.goto { display: flex; gap: 6px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
.goto input { width: 80px; }
.events { list-style: none; margin: 0; padding: 0; max-height: 220px; overflow: auto; font-size: 12px; display: grid; gap: 3px; }
.events li { display: flex; gap: 8px; }
.events time { color: var(--muted); font-variant-numeric: tabular-nums; flex: none; }
.events .warn { color: var(--warn); }
.events .bad { color: var(--bad); }
.events .ok { color: var(--ok); }

/* ---------- admin ---------- */
.chart { width: 100%; height: 170px; display: block; }
.cfg { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; align-items: end; }
.cfg label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
.cfg label.check { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: 13px; }
.inline { display: flex; gap: 8px; flex-wrap: wrap; }
.inline input { flex: 1 1 160px; }
.inline input[type="checkbox"] { flex: none; }
.inline .check { flex: none; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { color: var(--muted); font-weight: 600; font-size: 12px; }
.table td .btn { padding: 3px 8px; font-size: 12px; }
.card:has(.table) { overflow-x: auto; }
.stack { display: grid; gap: 8px; }
.check { display: flex; align-items: center; gap: 6px; }
.log { margin: 10px 0 0; max-height: 220px; overflow: auto; font-size: 11px; background: var(--panel-2);
       padding: 8px; border-radius: 8px; white-space: pre-wrap; word-break: break-all; }
.badge.info { color: var(--accent); border-color: currentColor; }
.conn { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; font-size: 12px; color: var(--muted);
        padding: 8px 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.conn b { color: var(--text); font-weight: 600; }
.conn .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--bad); display: inline-block; margin-right: 6px; vertical-align: -1px; }
.conn .dot.on { background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 25%, transparent); }
.conn .dot.stale { background: var(--warn); }
.auto-banner { padding: 10px 14px; border-radius: var(--radius); font-weight: 600; color: #fff;
               background: linear-gradient(90deg, #c2410c, #d97706); display: flex; gap: 10px; align-items: center; }
.auto-banner .muted { color: rgba(255,255,255,.85); font-weight: 400; }
.sw { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-left: 4px; }
.sw-a { background: var(--c2); } .sw-m { background: var(--trail); }
.activity .table td { font-size: 12px; }
.steps { margin: 0; padding-left: 20px; display: grid; gap: 12px; }
.steps li > .inline, .steps li > .token { margin-top: 6px; }
.token pre { margin: 6px 0; white-space: pre-wrap; font-size: 12px; }
.token { margin-top: 10px; padding: 10px; border-radius: 8px; background: var(--panel-2); font-size: 13px; word-break: break-all; }
.token code { font-size: 13px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }

.toast {
  position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg);
  padding: 9px 14px; border-radius: 8px; font-size: 13px; z-index: 20; max-width: calc(100% - 32px);
}

/* ---------- phone ---------- */
@media (max-width: 820px) {
  #main { height: auto; min-height: 100vh; display: block; }
  .layout { grid-template-columns: 1fr; }
  .content { overflow: visible; }
  .sidebar { display: none; border-right: 0; border-bottom: 1px solid var(--line); }
  .sidebar.open { display: block; }
  .only-mobile { display: inline-block; }
  .grid-2 { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; padding: 8px 16px; }
  .tabs { order: 10; width: 100%; }
  .who { display: none; }
  .content { padding: 16px 16px 88px; }
  /* STOP always within thumb reach while scrolling */
  .estop { position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 10;
           min-width: 96px; min-height: 52px; box-shadow: 0 4px 14px rgba(0,0,0,.3); }
}
#connect-status.ok { color: var(--ok); }