Split-screen landing that presents two visual direction choices. One shareable URL.
<div class="chooser">
<a class="option classical" href="/clasica">...</a>
<a class="option dark" href="/dark">...</a>
</div>
.chooser { display: grid; grid-template-columns: 1fr 1fr; min-height: 100vh; }
.option { display: flex; flex-direction: column; padding: clamp(40px, 7vw, 80px); }
.option.classical { background: var(--classical-bg); color: var(--classical-text); }
.option.dark { background: var(--dark-bg); color: var(--dark-text); }
@media (max-width: 760px) { .chooser { grid-template-columns: 1fr; } }
Pattern proven on the Peñaranda y Cobo site. Code playbook: webs agency/patterns.md § Pattern 21.