/* lab1702 design system — terminal-phosphor dark theme.
   Tokens copied from the lab1702 token set (colors/typography/spacing/effects). */
@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600&display=swap");

:root {
  /* Surfaces */
  --bg-0: oklch(0.15 0.010 100);
  --bg-1: oklch(0.18 0.012 100);
  --bg-2: oklch(0.22 0.014 100);
  --bg-3: oklch(0.26 0.016 100);
  /* Foreground */
  --fg-1: oklch(0.92 0.020 95);
  --fg-2: oklch(0.70 0.020 95);
  --fg-3: oklch(0.52 0.018 95);
  /* Accents */
  --amber: oklch(0.80 0.16 75);
  --amber-dim: oklch(0.68 0.13 75);
  --green: oklch(0.80 0.16 145);
  --danger: oklch(0.70 0.16 25);
  /* Lines + effects */
  --border-1: oklch(0.32 0.018 100);
  --border-2: oklch(0.42 0.020 100);
  --shadow-card: 0 1px 0 oklch(0 0 0 / 0.4), 0 4px 16px oklch(0 0 0 / 0.35);
  --focus-shadow: 0 0 0 1px var(--bg-0), 0 0 0 3px var(--amber);
  --scanlines: repeating-linear-gradient(to bottom,
    transparent 0px, transparent 2px,
    oklch(0 0 0 / 0.12) 2px, oklch(0 0 0 / 0.12) 3px);
  /* Type */
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-sans: "IBM Plex Sans", -apple-system, "Segoe UI", Helvetica, sans-serif;
  --tracking-label: 0.08em;
  /* Radii */
  --radius-1: 2px;
  --radius-2: 4px;
}

* { box-sizing: border-box; }

::selection { background: oklch(0.80 0.16 75 / 0.25); }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg-1);
  background: var(--bg-0);
}

header {
  padding: 20px 28px 16px;
  border-bottom: 1px solid var(--border-1);
  background-image: var(--scanlines);
}

h1 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  text-transform: lowercase;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--fg-2);
  font-size: 13px;
}

main {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 24px 28px 32px;
  flex-wrap: wrap;
}

.controls {
  flex: 0 0 300px;
  background: var(--bg-1);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-2);
  box-shadow: var(--shadow-card);
  padding: 16px;
}

.control { margin-bottom: 16px; }
.control:last-child { margin-bottom: 0; }

.control label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  color: var(--fg-2);
  margin-bottom: 6px;
}

.control label span {
  color: var(--amber);
  float: right;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

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

input[type="range"]:focus-visible,
input[type="checkbox"]:focus-visible {
  outline: none;
  box-shadow: var(--focus-shadow);
  border-radius: var(--radius-1);
}

.output {
  flex: 1 1 720px;
  min-width: 0;
}

.toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-2);
}

.toggles label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.toggles input[type="checkbox"] { accent-color: var(--amber); }

canvas {
  display: block;
  width: 100%;
  height: 420px;
  background: var(--bg-1);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-2);
  box-shadow: var(--shadow-card);
}

.stats {
  display: flex;
  gap: 16px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.stat {
  background: var(--bg-1);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-2);
  box-shadow: var(--shadow-card);
  padding: 12px 16px;
  flex: 1 1 160px;
}

.stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  color: var(--fg-3);
}

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
  margin-top: 4px;
}