:root {
  --navy: #0c1b2a;
  --cream: #f5f1e8;
  --muted: #5c6b7a;
  --line: #d9d2c5;
  --gold: #c4a35a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--cream);
  color: var(--navy);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

.shell {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

.brand h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand p {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.wheelbase-slot {
  border: 1.5px dashed var(--line);
  border-radius: 12px;
  padding: 2.5rem 1.25rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.45);
}

.slot-label {
  margin: 0 0 0.4rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.slot-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}