* {
  box-sizing: border-box;
}

html,
body,
#app {
  height: 100%;
  margin: 0;
}

body {
  background: #111318;
  color: #f2f4f8;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

#app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
}

#viewport {
  position: relative;
  min-width: 0;
  height: 100%;
  overflow: hidden;
}

.capture-frame {
  position: absolute;
  z-index: 2;
  width: var(--capture-width, 280px);
  height: var(--capture-height, 138px);
  border: 2px solid rgba(242, 244, 248, 0.86);
  border-radius: 6px;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  padding: 8px;
  pointer-events: none;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.85);
}

.capture-frame-left {
  border-color: #49b8ff;
  color: #d8f2ff;
  text-align: right;
}

.capture-frame-right {
  border-color: #ffb84d;
  color: #fff1d6;
  text-align: left;
}

.model-status {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  max-width: min(520px, calc(100% - 28px));
  border: 1px solid rgba(216, 222, 234, 0.28);
  border-radius: 8px;
  background: rgba(17, 19, 24, 0.82);
  color: #d8deea;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.35;
  padding: 9px 11px;
  pointer-events: none;
}

.model-status.loaded {
  display: none;
}

.model-status.error {
  border-color: rgba(255, 184, 77, 0.8);
  color: #fff1d6;
}

.orbit-hint {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: grid;
  gap: 4px;
  border: 1px solid rgba(216, 222, 234, 0.18);
  border-radius: 8px;
  background: rgba(17, 19, 24, 0.68);
  color: rgba(242, 244, 248, 0.78);
  font-size: 12px;
  font-weight: 650;
  line-height: 1.2;
  padding: 9px 10px;
  pointer-events: none;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.72);
}

#panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow: auto;
  border-left: 1px solid #2a2e38;
  background: #181b22;
  padding: 22px;
}

h1 {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 700;
}

p {
  margin: 0;
  color: #aeb7c7;
  line-height: 1.45;
}

.metrics,
.readout {
  display: grid;
  gap: 10px;
}

.unit-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  border: 1px solid #303744;
  border-radius: 8px;
  background: #12151b;
  padding: 4px;
}

.unit-toggle button {
  min-height: 34px;
  border: 0;
  background: transparent;
  color: #aeb7c7;
}

.unit-toggle button.active {
  background: #2d5f7d;
  color: #ffffff;
}

.metrics div,
.readout div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid #2b303b;
  border-radius: 8px;
  background: #20242d;
  padding: 10px 12px;
}

.metrics span,
.readout span {
  color: #aeb7c7;
}

.metrics strong,
.readout strong {
  color: #ffffff;
  font-weight: 650;
  text-align: right;
}

form {
  display: grid;
  gap: 18px;
}

label {
  display: grid;
  gap: 8px;
}

label span {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: #d8deea;
  font-size: 14px;
}

output {
  color: #8fd8ff;
  font-variant-numeric: tabular-nums;
}

input[type="range"] {
  width: 100%;
  accent-color: #49b8ff;
}

button {
  min-height: 42px;
  border: 1px solid #3a4352;
  border-radius: 8px;
  background: #26303d;
  color: #ffffff;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

button:hover {
  background: #303b4b;
}

button:active {
  transform: translateY(1px);
}

canvas {
  display: block;
}

@media (max-width: 900px) {
  #app {
    grid-template-columns: 1fr;
    grid-template-rows: 62vh auto;
  }

  #panel {
    border-top: 1px solid #2a2e38;
    border-left: 0;
  }
}