:root {
  --bg: #10140f;
  --panel: #1a2018;
  --ink: #ebe6d8;
  --muted: #9aa18c;
  --brass: #c9a35a;
  --go: #8fb56b;
  --stop: #c4452f;
  --line: #2c3428;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.top {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  margin: 0;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--brass);
}
h1 { margin: 0; font-size: 1.4rem; font-weight: 600; }
.link-state { margin-left: auto; display: flex; align-items: center; gap: 0.5rem; color: var(--muted); }
.dot { width: 0.7rem; height: 0.7rem; border-radius: 50%; background: #555; }
.dot.ok { background: var(--go); }
.estop {
  background: var(--stop);
  color: white;
  border: 0;
  min-width: 5.5rem;
  min-height: 2.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
}

main {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  min-height: calc(100% - 4.2rem);
}
.view {
  position: relative;
  background: #0a0c09;
  min-height: 320px;
}
.view img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: 320px;
}
.camera-hint {
  position: absolute;
  inset: 0;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  padding: 1.5rem;
  text-align: center;
}
.camera-hint.hidden { display: none; }
.view-overlay {
  position: absolute;
  left: 0.8rem;
  bottom: 0.8rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.view-overlay p { margin: 0.15rem 0; }

aside { padding: 1rem; display: grid; gap: 1rem; align-content: start; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 0.9rem;
}
h2 { margin: 0 0 0.6rem; font-size: 0.85rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass); }
dl { margin: 0; display: grid; gap: 0.35rem; }
dl > div { display: flex; justify-content: space-between; gap: 1rem; }
dt { color: var(--muted); }
dd { margin: 0; font-variant-numeric: tabular-nums; }
label { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.9rem; }
input[type="range"] { width: 100%; }
.pads { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; margin-top: 0.8rem; }
.stick {
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #141910;
  position: relative;
  touch-action: none;
}
.knob {
  width: 28%;
  height: 28%;
  border-radius: 50%;
  background: var(--brass);
  position: absolute;
  left: 36%;
  top: 36%;
}
.hint, .api pre { color: var(--muted); font-size: 0.8rem; }
.api pre { margin: 0; white-space: pre-wrap; }
.toggles { display: grid; gap: 0.5rem; }
.toggles button {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--brass);
  padding: 0.55rem 0.8rem;
  cursor: pointer;
}
.toggles button.on {
  background: var(--brass);
  color: #16140e;
}

@media (max-width: 840px) {
  main { grid-template-columns: 1fr; }
}

/* cloud-only: login screen and session controls */
.login-page { display: grid; place-items: center; }
.login {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.6rem;
  display: grid;
  gap: 0.6rem;
  min-width: 18rem;
}
.login input {
  background: #141910;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.6rem;
}
.login button, .linklike {
  background: var(--brass);
  color: #16140e;
  border: 0;
  padding: 0.6rem 0.9rem;
  cursor: pointer;
  font-weight: 600;
}
.linklike { background: transparent; color: var(--muted); border: 1px solid var(--line); }
.dot.warn { background: var(--brass); }
dd.alarm { color: var(--stop); font-weight: 700; }

/* chat panel */
.tabs { display: flex; gap: 0.4rem; }
.tabs button {
  flex: 1;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.5rem;
  cursor: pointer;
}
.tabs button.on { background: var(--brass); color: #16140e; border-color: var(--brass); font-weight: 600; }
.chat { display: grid; gap: 0.6rem; }
.chat-log {
  display: grid;
  gap: 0.5rem;
  max-height: 22rem;
  overflow-y: auto;
  font-size: 0.9rem;
}
.msg { padding: 0.45rem 0.6rem; border-left: 2px solid var(--line); white-space: pre-wrap; }
.msg.you { border-left-color: var(--brass); color: var(--ink); }
.msg.rover { border-left-color: var(--go); }
.msg.tool { border-left-color: var(--muted); color: var(--muted); font-size: 0.8rem; font-variant-numeric: tabular-nums; }
.msg.err { border-left-color: var(--stop); color: var(--stop); }
.msg img { width: 100%; display: block; margin-top: 0.3rem; }
.chat-input { display: grid; gap: 0.4rem; }
.chat-input textarea {
  background: #141910;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 0.5rem;
  resize: vertical;
  font-family: inherit;
}
.chat-actions { display: flex; gap: 0.4rem; }
.chat-actions button { flex: 1; background: var(--brass); color: #16140e; border: 0; padding: 0.5rem; cursor: pointer; font-weight: 600; }
.chat-actions .linklike { flex: 0 0 5rem; }
.thinking { color: var(--brass); }