:root {
  --bg: #0e0e0e;
  --surface: #1a1a1a;
  --surface2: #242424;
  --border: #333;
  --accent: #00d4ff;
  --accent2: #0099bb;
  --text: #e8e8e8;
  --muted: #888;
  --danger: #ff4444;
  --success: #44dd88;
  --warn: #ffaa00;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

header h1 { font-size: 16px; font-weight: 600; letter-spacing: 0.05em; }
header h1 span { color: var(--accent); }

#status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--danger);
  flex-shrink: 0;
}
#status-dot.ok { background: var(--success); }
#status-label { font-size: 12px; color: var(--muted); }
#angle-display { margin-left: auto; font-size: 12px; color: var(--muted); font-family: monospace; }

#hotword-indicator {
  font-size: 12px; color: var(--muted); font-style: italic;
  opacity: 0; transition: opacity 0.2s;
  white-space: nowrap;
}
#hotword-indicator.active { opacity: 1; color: var(--accent); }

.main {
  display: grid;
  grid-template-columns: 340px 1fr 300px;
  gap: 0;
  flex: 1;
  overflow: hidden;
}

/* ── Left panel ── */
.left-panel {
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

/* ── Center panel ── */
.center-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px;
  gap: 10px;
  background: var(--bg);
  overflow: hidden;
}

/* ── Right panel ── */
.right-panel {
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Sections ── */
.section {
  border-bottom: 1px solid var(--border);
  padding: 10px 12px;
}

.section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 8px;
}

/* ── Camera feed ── */
#camera-wrap {
  position: relative;
  width: 100%;
  max-width: 640px;
  aspect-ratio: 640 / 480;
  background: #000;
  border-radius: 6px;
  overflow: hidden;
  cursor: crosshair;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

#camera-feed {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scaleX(-1);
}

#camera-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#click-dot {
  position: absolute;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  transform: translate(-50%, -50%);
  display: none;
  pointer-events: none;
  box-shadow: 0 0 8px var(--accent);
}

#camera-no-feed {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

#camera-no-feed canvas { display: none; }

/* ── Arrow pad ── */
.arrow-pad {
  display: grid;
  grid-template-columns: repeat(3, 40px);
  grid-template-rows: repeat(3, 40px);
  gap: 4px;
}

.arrow-pad button {
  width: 40px; height: 40px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s;
  user-select: none;
}
.arrow-pad button:hover { background: var(--accent2); border-color: var(--accent); }
.arrow-pad button:active { background: var(--accent); }

/* ── Controls row ── */
.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

/* ── Buttons ── */
button, .btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  padding: 5px 10px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.1s, border-color 0.1s;
  white-space: nowrap;
}
button:hover, .btn:hover { background: var(--accent2); border-color: var(--accent); }
button.active { background: var(--accent); border-color: var(--accent); color: #000; font-weight: 600; }
button.danger { border-color: var(--danger); }
button.danger:hover { background: var(--danger); }

/* ── Inputs ── */
input[type="text"], input[type="number"], select, textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  padding: 5px 8px;
  font-size: 13px;
  outline: none;
  width: 100%;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

label { font-size: 12px; color: var(--muted); display: block; margin-bottom: 3px; }

.row { display: flex; gap: 6px; align-items: center; margin-bottom: 6px; }
.row label { margin: 0; flex-shrink: 0; }
.row input, .row select { flex: 1; }

.field { margin-bottom: 8px; }

/* ── Photo strip ── */
#photo-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  max-height: 200px;
  overflow-y: auto;
}
#photo-strip img {
  width: 80px; height: 60px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.1s;
}
#photo-strip img:hover { border-color: var(--accent); }

/* ── Event log ── */
#event-log {
  flex: 1;
  overflow-y: auto;
  font-family: monospace;
  font-size: 11px;
  padding: 8px;
}
.log-entry {
  padding: 2px 0;
  border-bottom: 1px solid var(--border);
  word-break: break-all;
}
.log-entry .ts { color: var(--muted); }
.log-entry .evt { color: var(--accent); }
.log-entry .evt-error { color: var(--danger); }
.log-entry .evt-motion { color: var(--warn); }
.log-entry .evt-entity { color: var(--success); }
.log-entry .evt-success { color: var(--success); }

/* ── Tabs ── */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.tab-btn {
  flex: 1;
  padding: 7px 4px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  border-radius: 0;
}
.tab-btn:hover { color: var(--text); background: none; border-color: transparent; }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); background: none; font-weight: 600; }

.tab-panel { display: none; padding: 10px 12px; overflow-y: auto; flex: 1; }
.tab-panel.active { display: block; }

/* ── Attention grid ── */
.attention-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

/* ── Listen result ── */
#listen-result {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 6px 8px;
  min-height: 40px;
  font-style: italic;
  color: var(--accent);
  font-size: 13px;
}

/* ── Entity list ── */
#entity-list { font-size: 12px; }
.entity-item {
  padding: 4px 6px;
  background: var(--surface2);
  border-radius: 4px;
  margin-bottom: 4px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid transparent;
}
.entity-item:hover { border-color: var(--accent); }
.entity-item .track-btn { font-size: 11px; padding: 2px 6px; }

/* ── Scrollbars ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ── Photo modal ── */
#photo-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 100;
  align-items: center;
  justify-content: center;
}
#photo-modal.open { display: flex; }
#photo-modal img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 6px;
  border: 1px solid var(--border);
}
#photo-modal-close {
  position: absolute;
  top: 16px; right: 16px;
  font-size: 28px;
  cursor: pointer;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* ── Video area ── */
.video-controls { display: flex; gap: 6px; align-items: center; }
#video-status { font-size: 12px; color: var(--muted); }

/* ── Menu Section (Robot & Mode) ── */
.menu-section {
  background: linear-gradient(135deg, var(--surface2), var(--surface));
  border-bottom: 2px solid var(--accent);
}

#robot-select {
  width: 100%;
  padding: 7px 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
}
#robot-select:hover { border-color: var(--accent); }
#robot-select:focus { border-color: var(--accent); background: var(--surface); }

/* ── Mode Buttons ── */
.mode-buttons {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}

.mode-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  text-align: left;
}

.mode-btn:hover {
  background: var(--accent2);
  border-color: var(--accent);
  transform: translateX(2px);
}

.mode-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.mode-icon {
  font-size: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mode-label {
  flex: 1;
}