.wb-course {
  --wb-accent: #d47b2d;
  --wb-accent-deep: #9f4f14;
  --wb-safe: #237c57;
  --wb-caution: #c06a1a;
  --wb-danger: #b5443f;
}

.wb-course .course-hero,
.wb-course .content-section {
  position: relative;
}

.wb-layout {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  align-items: start;
}

.wb-controls {
  position: sticky;
  top: 1.5rem;
}

.wb-controls .scenario-field + .scenario-field {
  margin-top: 1.25rem;
}

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

.wb-controls .status-pill-row {
  margin-top: 1.5rem;
}

.wb-visual {
  display: grid;
  gap: 1.5rem;
}

.wb-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.wb-metrics > div,
.diagram-caption,
.airframe-shell,
.envelope-shell,
.wb-table-card {
  border-radius: 1.4rem;
}

.wb-metrics > div {
  padding: 1rem 1.1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.diagram-caption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.diagram-note {
  max-width: 25rem;
  margin: 0;
  color: var(--muted);
}

.airframe-shell,
.envelope-shell {
  padding: 1.2rem;
  background:
    radial-gradient(circle at top right, rgba(212, 123, 45, 0.14), transparent 34%),
    linear-gradient(180deg, rgba(10, 18, 18, 0.9), rgba(18, 28, 28, 0.82));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.aircraft-diagram,
.envelope-diagram {
  width: 100%;
  height: auto;
  display: block;
}

.datum-axis,
.datum-tick,
.station-markers line,
.chart-axis,
.chart-grid line {
  stroke: rgba(255, 255, 255, 0.22);
  stroke-width: 2;
}

.station-markers text,
.datum-label,
.chart-labels text {
  fill: rgba(244, 247, 247, 0.82);
  font-size: 0.9rem;
  font-weight: 600;
  text-anchor: middle;
}

.datum-label {
  text-anchor: middle;
}

.airframe-outline circle,
.airframe-outline path {
  fill: rgba(228, 237, 237, 0.12);
  stroke: rgba(236, 242, 242, 0.75);
  stroke-width: 3;
}

.cg-symbol {
  transition: transform 220ms ease;
}

.cg-ring,
.cg-cross,
.cg-core {
  stroke: var(--wb-accent-deep);
}

.cg-ring {
  fill: rgba(212, 123, 45, 0.16);
  stroke-width: 4;
}

.cg-cross {
  stroke-width: 4;
  stroke-linecap: round;
}

.cg-core {
  fill: var(--wb-accent);
  stroke-width: 2;
}

.cg-text {
  fill: var(--wb-accent-deep);
  font-size: 1rem;
  font-weight: 800;
  text-anchor: middle;
}

.envelope-diagram rect {
  fill: rgba(255, 255, 255, 0.04);
  stroke: rgba(255, 255, 255, 0.08);
}

.envelope-shape {
  fill: rgba(35, 124, 87, 0.14);
  stroke: rgba(35, 124, 87, 0.72);
  stroke-width: 3;
}

.y-axis-label {
  transform: rotate(-90deg);
  transform-origin: center;
}

.wb-table-card {
  overflow: hidden;
}

.table-wrap {
  overflow-x: auto;
}

.wb-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.wb-table th,
.wb-table td {
  padding: 0.95rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}

.wb-table th {
  color: var(--muted);
}

.wb-table tfoot td {
  font-weight: 800;
  color: var(--text);
}

.wb-course .status-pill {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.wb-course .status-pill.is-safe {
  background: rgba(35, 124, 87, 0.14);
  color: var(--wb-safe);
}

.wb-course .status-pill.is-caution {
  background: rgba(192, 106, 26, 0.14);
  color: var(--wb-caution);
}

.wb-course .status-pill.is-danger {
  background: rgba(181, 68, 63, 0.14);
  color: var(--wb-danger);
}

@media (max-width: 980px) {
  .wb-layout {
    grid-template-columns: 1fr;
  }

  .wb-controls {
    position: static;
  }

  .wb-metrics {
    grid-template-columns: 1fr;
  }

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