:root {
  color-scheme: light;
  --font-heading: "Elms Sans", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --color-page: #f7faf8;
  --color-text: #1a2e1a;
  --color-surface: #ffffff;
  --color-primary: #2d6a4f;
  --color-primary-dark: #1b4332;
  --color-primary-soft: #eef4f0;
  --color-primary-muted-text: #5a6b5a;
  --color-border-primary: rgba(45, 106, 79, 0.14);
  --radius: 0.75rem;
  --model-accent: #d4e4d4;
  --model-active: #0077bb;
  --model-derelict: #ee7733;
  --model-debris: #cc3311;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-page);
  color: var(--color-text);
  font-family: var(--font-body);
  min-height: 100vh;
  padding: 1rem;
}

body.is-embedded {
  min-height: auto;
  padding: 0.5rem;
  background: transparent;
}

.wrap {
  display: grid;
  gap: 1rem;
  width: min(1200px, 100%);
  margin: 0 auto;
}

body.is-embedded .wrap {
  width: 100%;
  gap: 0.75rem;
}

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: 0 8px 22px rgba(20, 42, 20, 0.05);
}

body.is-embedded .panel {
  padding: 0.85rem;
  box-shadow: none;
}

h1,
h2 {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 600;
}

h1 {
  margin-bottom: 0.45rem;
  font-size: 1.65rem;
  line-height: 1.25;
}

.subtitle {
  margin: 0;
  color: var(--color-primary-muted-text);
  font-size: 0.95rem;
  line-height: 1.45;
}

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  align-items: end;
  gap: 0.85rem;
}

.quick-controls {
  margin-bottom: 0.85rem;
}

.external-controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.launch-stop-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.75rem;
  padding: 0.65rem 0.75rem;
}

.external-control-row {
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border-primary);
  border-radius: 0.65rem;
  background: var(--color-primary-soft);
}

.external-control-row .control {
  max-width: none;
}

.control--spaced {
  margin-bottom: 0.4rem;
}

.launch-stop-row .range-row {
  min-width: min(560px, 100%);
  margin-right: 0.35rem;
}

.launch-stop-row .toggle-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.86rem;
  font-weight: 500;
  white-space: nowrap;
}

details.advanced-panel {
  border: 1px solid var(--color-border-primary);
  border-radius: 0.65rem;
  background: var(--color-primary-soft);
  padding: 0.65rem 0.75rem 0.85rem;
}

details.advanced-panel summary {
  margin-bottom: 0.65rem;
  color: var(--color-primary);
  cursor: pointer;
  font-weight: 600;
  user-select: none;
}

.control {
  display: grid;
  gap: 0.4rem;
  min-width: 0;
}

.range-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px;
  align-items: center;
  gap: 0.5rem;
}

.axis-controls {
  max-width: 360px;
}

.control label,
.range-row label {
  font-size: 0.92rem;
  font-weight: 500;
}

.quantity-label {
  cursor: help;
  text-decoration: underline dotted;
  text-underline-offset: 2px;
}

.value {
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

input[type="range"],
select {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--color-border-primary);
  border-radius: 0.5rem;
  padding: 0.4rem;
  accent-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-text);
  font: inherit;
}

.value-input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--color-border-primary);
  border-radius: 0.5rem;
  padding: 0.4rem 0.5rem;
  background: var(--color-primary-soft);
  color: var(--color-text);
  font: inherit;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

input:focus-visible,
select:focus-visible,
summary:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.chart-box {
  position: relative;
  min-height: 500px;
}

.chart-box canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: inherit;
}

body.is-embedded .chart-box {
  min-height: 420px;
}

.chart-title {
  margin: 0.15rem 0 0.65rem;
  font-size: 1.1rem;
  line-height: 1.35;
}

.split-legend {
  display: grid;
  gap: 0.4rem;
  margin: 0.5rem 0 0.65rem;
}

.legend-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.9rem;
}

.legend-title {
  margin-right: 0.25rem;
  color: var(--color-primary-muted-text);
  font-size: 0.8rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 0;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  font: inherit;
  padding: 0.15rem 0;
}

.legend-item.off {
  opacity: 0.45;
}

.legend-swatch {
  display: inline-block;
  width: 20px;
  height: 0;
  border-top: 3px solid;
  border-radius: 2px;
}

.legend-swatch.dashed {
  border-top-style: dashed;
}

@media (max-width: 760px) {
  body {
    padding: 0.85rem;
  }

  body.is-embedded {
    padding: 0.25rem;
  }

  .panel {
    padding: 0.85rem;
  }

  .chart-box {
    min-height: 360px;
  }

  .range-row {
    grid-template-columns: minmax(0, 1fr);
  }
}