:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #101314;
  color: #eef4f2;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(20, 58, 62, 0.22), rgba(16, 19, 20, 0) 340px),
    #101314;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  width: min(1480px, 100%);
  margin: 0 auto;
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #8ed4c7;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 4.25rem);
  line-height: 1;
  letter-spacing: 0;
}

.status-pill {
  flex: 0 0 auto;
  min-width: 144px;
  border: 1px solid rgba(142, 212, 199, 0.32);
  border-radius: 999px;
  padding: 9px 14px;
  background: rgba(22, 31, 32, 0.82);
  color: #bfe7df;
  font-size: 0.86rem;
  text-align: center;
}

.status-pill.is-error {
  border-color: rgba(255, 123, 92, 0.4);
  color: #ffb49f;
}

.lab-layout {
  display: grid;
  grid-template-columns: minmax(240px, 290px) 1fr;
  gap: 22px;
  align-items: start;
}

.controls {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 20px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 8px;
  padding: 18px;
  background: rgba(20, 25, 26, 0.9);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.26);
}

.control-group {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px 14px;
  align-items: center;
}

.control-group label {
  color: #dce8e5;
  font-size: 0.93rem;
  font-weight: 700;
}

.control-group output {
  min-width: 48px;
  color: #94aaa6;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.control-group input,
.control-group select {
  grid-column: 1 / -1;
  width: 100%;
}

input[type="range"] {
  accent-color: #3fceb4;
}

select {
  min-height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  padding: 0 10px;
  background: #151b1c;
  color: #eef4f2;
}

.metric-panel {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.metric-panel div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 10px 12px;
  background: #131819;
}

.metric-panel span {
  color: #9fb0ad;
  font-size: 0.85rem;
}

.metric-panel strong {
  color: #e8fff8;
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
}

.viewport-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.viewport-panel {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: #15191a;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 58px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.panel-heading h2 {
  font-size: 1rem;
  line-height: 1.2;
}

.panel-heading span {
  color: #98aaa6;
  font-size: 0.8rem;
  white-space: nowrap;
}

canvas {
  display: block;
  width: 100%;
  aspect-ratio: 1.22;
  background: #0b0d0e;
  image-rendering: pixelated;
}

@media (max-width: 1120px) {
  .lab-layout {
    grid-template-columns: 1fr;
  }

  .controls {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .metric-panel {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .app-shell {
    padding: 20px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .controls,
  .viewport-grid {
    grid-template-columns: 1fr;
  }

  .metric-panel {
    grid-template-columns: 1fr;
  }
}