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

body {
  font-family:
    'Open Sans',
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: #0a0a14;
  color: #e0e0ff;
  overflow: hidden;
}

#ui-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  display: flex;
  justify-content: space-between;
  padding: 1rem;
}

#info-panel,
#joints-panel {
  background: rgba(20, 20, 40, 0.9);
  border: 1px solid #445;
  border-radius: 8px;
  padding: 1rem;
  pointer-events: auto;
  max-width: 320px;
  backdrop-filter: blur(4px);
}

#info-panel {
  align-self: flex-start;
}
#joints-panel {
  align-self: center;
  margin-right: 1rem;
}

h3,
h4 {
  margin-bottom: 0.75rem;
  color: #8af;
  font-weight: 500;
}

#tcp-display {
  background: rgba(0, 0, 0, 0.3);
  padding: 0.5rem;
  border-radius: 4px;
  margin: 0.5rem 0;
  font-family: monospace;
  font-size: 0.9rem;
}

#tcp-display span {
  color: #6f6;
}

.joint-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.4rem 0;
  font-size: 0.85rem;
}

.joint-row label {
  flex: 0 0 70px;
  color: #aaa;
}

.joint-row input[type='range'] {
  flex: 1;
  accent-color: #6af;
}

.joint-row span {
  flex: 0 0 50px;
  text-align: right;
  font-family: monospace;
  color: #6f6;
}

.controls {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.controls button,
#joints-panel button {
  background: #2a3a5a;
  border: 1px solid #456;
  color: #e0e0ff;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.2s;
}

.controls button:hover,
#joints-panel button:hover {
  background: #3a4a7a;
}
.controls button:active,
#joints-panel button:active {
  background: #4a5a9a;
}

.controls label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  cursor: pointer;
}

#loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(20, 20, 40, 0.95);
  padding: 1.5rem 2rem;
  border-radius: 8px;
  border: 1px solid #68a;
  font-size: 1.1rem;
  display: none;
}

#loading.active {
  display: block;
}

/* Скроллбар для панели суставов */
#joints-sliders {
  max-height: 400px;
  overflow-y: auto;
  padding-right: 0.5rem;
}

#joints-sliders::-webkit-scrollbar {
  width: 6px;
}
#joints-sliders::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 3px;
}
#joints-sliders::-webkit-scrollbar-thumb {
  background: #456;
  border-radius: 3px;
}
#joints-sliders::-webkit-scrollbar-thumb:hover {
  background: #567;
}