:root { --brand: #6f42c1; }
.hero {
  min-height: 70vh;
  background:
    linear-gradient(180deg, rgba(0,0,0,.55), rgba(0,0,0,.35)),
    url('https://images.unsplash.com/photo-1520975661595-6453be3f7070?q=80&w=1600&auto=format&fit=crop') center/cover no-repeat;
}
.subhero {
  background:
    linear-gradient(180deg, rgba(0,0,0,.55), rgba(0,0,0,.35)),
    url('https://images.unsplash.com/photo-1548191265-cc70d3d45ba1?q=80&w=1600&auto=format&fit=crop') center/cover no-repeat;
}
.navbar .btn.btn-primary { background: var(--brand); border-color: var(--brand); }
.btn-primary { background: var(--brand); border-color: var(--brand); }
.card { border-radius: 1rem; }
.ratio iframe { border: 0; }
footer a { text-decoration: none; }