:root {
  --bg: #f8fafc; --fg: #0f172a; --muted: #64748b; --panel: #ffffff; --line: #e2e8f0;
  --accent: #2563eb; --accent-fg: #fff; --ok: #16a34a; --warn: #d97706; --bad: #dc2626;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b1120; --fg: #e2e8f0; --muted: #94a3b8; --panel: #111827; --line: #1f2937; --accent: #3b82f6; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.45 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  padding-bottom: env(safe-area-inset-bottom); }
.topbar { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px;
  padding-top: max(12px, env(safe-area-inset-top)); border-bottom: 1px solid var(--line); background: var(--panel);
  position: sticky; top: 0; z-index: 2; }
.brand { display: flex; gap: 8px; align-items: center; font-weight: 700; color: inherit; text-decoration: none; }
.view { max-width: 760px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 8px 0; }
h2 { font-size: 1rem; margin: 0 0 8px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.error { color: var(--bad); }
.row { display: flex; align-items: center; flex-wrap: wrap; }
.gap { gap: 8px; }
.between { justify-content: space-between; gap: 12px; }
.cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 16px; }
.card { display: flex; flex-direction: column; gap: 6px; text-align: left; padding: 18px; border-radius: 14px;
  border: 1px solid var(--line); background: var(--panel); color: inherit; font: inherit; cursor: pointer; }
.card:hover { border-color: var(--accent); }
.card-icon { font-size: 2rem; }
.quickstart { margin: 36px 0 20px; }
.quickstart-heading, .step-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.quickstart-heading { margin-bottom: 20px; }
.quickstart-heading h2 { font-size: 1.25rem; margin: 4px 0; }
.quickstart-heading p { margin: 0; max-width: 52ch; }
.eyebrow, .step-number { color: var(--accent); font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.quickstart-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 12px; }
.quickstart-step { min-width: 0; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.step-heading h3 { margin: 3px 0 0; font-size: 1rem; }
.quickstart-step > p { margin: 10px 0; }
.example-code { margin: 0; padding: 14px; overflow-x: auto; border: 1px solid var(--line); border-radius: 10px;
  background: color-mix(in srgb, var(--bg) 78%, var(--fg)); color: var(--fg); font: .8rem/1.65 var(--mono); tab-size: 2; }
.example-code code { font: inherit; white-space: pre; }
.copy-button { min-width: 78px; flex: none; }
.quickstart-note { margin: 14px 2px; }
.quickstart-note a { color: var(--accent); }
.quick-join { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.quick-join h2 { font-size: 1.15rem; margin: 4px 0; }
.quick-join p { margin: 0; }
.audio-control { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.audio-control p { margin: 4px 0 0; }
.audio-control button { flex: none; }
.notification-settings { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.notification-settings h2 { margin: 0 0 4px; }
.notification-settings p { margin: 0; }
.notification-controls { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.notification-controls select { max-width: 160px; }
.manual-join { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); }
.manual-join summary { color: var(--accent); font-weight: 600; cursor: pointer; }
.manual-join form { margin-top: 12px; }
.manual-join > p { margin: 10px 0 0; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin-bottom: 12px; }
.unavailable-session { border-color: var(--warn); }
.unavailable-session h2 { margin-bottom: 6px; }
.unavailable-session p { margin: 0 0 12px; }
.saved-streams h2 { margin-bottom: 4px; }
.saved-streams > p { margin: 0 0 8px; }
.saved-streams .roster li { align-items: center; }
.saved-streams .roster .who { min-width: 0; }
.saved-streams .roster .who strong { font-family: var(--mono); letter-spacing: .08em; }
.saved-streams .roster button { flex: none; }
.label { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.code { font: 700 2.4rem/1.1 var(--mono); letter-spacing: .15em; margin: 4px 0; }
.small-code { font-size: 1.4rem; }
.code-panel { display: flex; gap: 16px; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.code-panel .row { margin-top: 10px; }
.wake-lock-control { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.wake-lock-control p { margin: 0; }
.qr { width: 132px; height: 132px; background: #fff; border-radius: 8px; padding: 4px; }
.listener-qr { display: grid; justify-items: center; gap: 6px; margin: 16px auto; }
.listener-qr p { margin: 0; }
.approval-scanner { margin: 14px 0; padding: 12px; border: 1px solid var(--line); border-radius: 12px; }
.approval-scanner video { display: block; width: 100%; max-width: 480px; max-height: 50vh; margin: 8px auto; border-radius: 10px; background: #000; }
.btn { font: inherit; font-weight: 600; padding: 8px 14px; border-radius: 10px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-fg); cursor: pointer; min-height: 40px; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.danger { color: var(--bad); border-color: var(--bad); }
.btn:disabled { opacity: .5; cursor: default; }
.pill { font-size: .75rem; padding: 3px 10px; border-radius: 99px; font-weight: 600; }
.pill-on { background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); }
.pill-off { background: color-mix(in srgb, var(--bad) 18%, transparent); color: var(--bad); }
.pill-wait { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.sensor-list { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.sensor { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: transparent; color: inherit; font: inherit; cursor: pointer; text-align: left; }
.sensor .name { font-weight: 600; }
.sensor .state { font-size: .75rem; color: var(--muted); }
.sensor.on { border-color: var(--ok); background: color-mix(in srgb, var(--ok) 10%, transparent); }
.sensor.on .state { color: var(--ok); }
.sensor:disabled { opacity: .45; cursor: not-allowed; }
.rate { margin-top: 12px; }
select, .code-input { font: inherit; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: inherit; }
.code-input { font: 700 1.4rem var(--mono); letter-spacing: .2em; text-transform: uppercase; width: 10ch; }
.log { list-style: none; margin: 0; padding: 0; max-height: 50vh; overflow: auto; font: .8rem/1.4 var(--mono); }
.log li { border-top: 1px solid var(--line); padding: 6px 0; word-break: break-all; }
.log li:first-child { border-top: 0; }
.log .tag { display: inline-block; font-weight: 700; margin-right: 6px; color: var(--accent); }
.log pre { margin: 4px 0 0; white-space: pre-wrap; }
.live { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.live-card { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; font: .8rem/1.4 var(--mono); }
.live-card strong { font-family: system-ui, sans-serif; }
.live-card pre { margin: 4px 0 0; white-space: pre-wrap; }
video#camera { width: 100%; max-height: 50vh; border-radius: 10px; background: #000; }
.touchpad { height: 220px; border: 2px dashed var(--line); border-radius: 12px; display: grid; place-items: center;
  color: var(--muted); touch-action: none; user-select: none; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--fg); color: var(--bg);
  padding: 10px 16px; border-radius: 10px; font-weight: 600; z-index: 10; max-width: 90vw; }
.flash { animation: flash .6s ease-out; }
@keyframes flash { from { background: color-mix(in srgb, var(--ok) 30%, transparent); } to { background: transparent; } }

.mt { margin-top: 16px; }
.mono { font-family: var(--mono); }
.name-input { font: inherit; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: inherit; flex: 1 1 180px; }
.roster { list-style: none; margin: 0; padding: 0; }
.roster li { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 0; border-top: 1px solid var(--line); }
.roster li:first-child { border-top: 0; }
.roster .who { min-width: 0; }
.roster .who strong { display: block; }
.roster .who span { display: block; font-size: .75rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 55vw; }
.roster .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; background: var(--muted); }
.roster .dot.on { background: var(--ok); }
.roster .pending-new { animation: flash 1.2s ease-out 2; }
.waiting { text-align: center; }
.spinner { width: 36px; height: 36px; margin: 8px auto; border-radius: 50%; border: 4px solid var(--line); border-top-color: var(--accent); animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.sensor-list { display: block; }
.sensor-grid { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.sensor-item { display: grid; gap: 4px; min-width: 0; }
.sensor-item .sensor { width: 100%; }
.sensor-forget { justify-self: end; padding: 2px 8px; border: 0; background: transparent; color: var(--muted);
  font: 600 .72rem/1.4 system-ui, sans-serif; text-decoration: underline; cursor: pointer; }
.sensor-forget:disabled { opacity: .5; cursor: default; }
h3.group { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 14px 0 6px; }
.frame { width: 100%; border-radius: 6px; margin-top: 4px; display: block; }
.meter { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; margin-top: 4px; }
.meter span { display: block; height: 100%; background: var(--ok); }
.roster .who strong .dot { display: inline-block; vertical-align: middle; max-width: none; }
.roster .who strong { display: flex; align-items: center; }
.listener-sensors { display: grid; gap: 8px; }
.listener-sensor { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 0; border-top: 1px solid var(--line); }
.listener-sensor:first-child { border-top: 0; }
.listener-sensor > div:first-child { display: grid; }
.listener-sensor button { flex: none; }

.workspace-view { max-width: 1040px; overflow: hidden; }
.workspace-shell { width: 100%; overflow: hidden; }
.workspace-track { display: flex; width: 200%; align-items: flex-start; transition: transform .36s cubic-bezier(.2,.75,.25,1); }
.workspace-shell.sensors-open .workspace-track { transform: translateX(-50%); }
.workspace-pane { flex: 0 0 50%; width: 50%; min-width: 0; padding: 0 12px 76px; }
.sensor-drawer { min-height: 70vh; border-left: 1px solid var(--line); }
.drawer-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 4px 0 14px; }
.drawer-header h2 { font-size: 1.2rem; margin: 4px 0 0; }
.sensor-drawer > p { margin: 0 0 8px; }
.sensor-drawer #sensor-count { margin: 0 0 12px; }
.sensor.saved { border-style: dashed; border-color: var(--accent); }
.sensor.pending { opacity: .75; }
.gear-button { position: fixed; right: max(20px, env(safe-area-inset-right)); bottom: max(20px, env(safe-area-inset-bottom));
  z-index: 8; width: 58px; height: 58px; display: grid; place-items: center; border: 0; border-radius: 50%;
  color: #fff; background: var(--accent); box-shadow: 0 8px 28px #0f172a44; cursor: pointer; }
.gear-button svg { width: 27px; height: 27px; fill: currentColor; }
.gear-button:focus-visible, .console-filters button:focus-visible { outline: 3px solid var(--warn); outline-offset: 3px; }
.feed-workspace { display: grid; grid-template-rows: minmax(230px, 1.15fr) minmax(190px, .85fr); gap: 1px;
  height: min(70vh, 720px); min-height: 520px; margin: 0 0 14px; overflow: hidden;
  border: 1px solid var(--line); border-radius: 14px; background: var(--line); }
.feed-pane { min-height: 0; overflow: hidden; padding: 14px; background: var(--panel); }
.feed-pane-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.feed-pane-header h2 { margin: 2px 0 0; font-size: 1rem; }
.feed-pane-header .eyebrow { font-size: .68rem; }
.live-pane { display: flex; flex-direction: column; }
.live { min-height: 0; flex: 1; overflow: auto; align-content: start; }
.live-card { background: color-mix(in srgb, var(--bg) 65%, var(--panel)); }
.geo-card { margin-top: 10px; padding: 8px; border: 1px solid var(--line); border-radius: 10px; }
.geo-card-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 6px; }
.geo-card iframe { display: block; width: 100%; height: 190px; border: 0; border-radius: 7px; background: var(--bg); }
.geo-card p { margin: 5px 2px 0; }
.console-pane { display: flex; flex-direction: column; }
.console-header { align-items: flex-end; flex: none; }
.console-filters { display: flex; gap: 6px; max-width: 100%; overflow-x: auto; padding: 2px 2px 6px; }
.console-filters button { flex: none; border: 1px solid var(--line); border-radius: 999px; padding: 5px 10px;
  color: var(--muted); background: transparent; font: 600 .75rem/1.2 system-ui, sans-serif; cursor: pointer; }
.console-filters button[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.console-log { min-height: 0; max-height: none; flex: 1; overflow: auto; overscroll-behavior: contain; }
.console-log li { padding: 8px 4px; border-top-color: color-mix(in srgb, var(--line) 70%, transparent); }
.console-log .console-event-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; }
.console-log .tag { margin: 0; }
.console-log pre { max-height: 100px; overflow: auto; font-size: .72rem; }
@media (prefers-reduced-motion: reduce) {
  .workspace-track { transition: none; }
}
@media (max-width: 520px) {
  .notification-settings { align-items: flex-start; flex-direction: column; }
  .notification-controls { align-items: flex-start; }
  .quickstart-heading { align-items: flex-start; flex-direction: column; }
  .quick-join { align-items: flex-start; flex-direction: column-reverse; }
  #sensor-requests-panel li { align-items: flex-start; flex-direction: column; }
  .workspace-view { padding: 12px 8px; }
  .workspace-pane { padding-left: 8px; padding-right: 8px; }
  .feed-workspace { height: 68vh; min-height: 500px; grid-template-rows: minmax(250px, 1.2fr) minmax(190px, .8fr); }
  .feed-pane { padding: 10px; }
  .feed-pane-header { align-items: flex-start; }
  .console-header { flex-direction: column; }
  .console-filters { width: 100%; }
  .geo-card iframe { height: 160px; }
}