:root{--marca-primario:#3730a3;--marca-primario-suave:#eef2ff;--marca-secundario:#0f766e;--fondo:#fafaf9;--superficie:#ffffff;--texto:#1c1917;--tenue:#78716c;--borde:#e7e5e4;--exito:#15803d;--aviso:#b45309;--peligro:#b91c1c;--radio:12px;--sombra:0 1px 2px rgba(28,25,23,.06),0 8px 24px rgba(28,25,23,.05)}*{box-sizing:border-box}body{margin:0;background:var(--fondo);color:var(--texto);font:16px/1.6 ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}h1{font-size:2rem;letter-spacing:-.02em;margin:0 0 .25rem}h2{font-size:1.25rem;letter-spacing:-.01em}h2,p{margin:0 0 1rem}a{color:var(--marca-primario)}.marco{max-width:1040px;margin:0 auto;padding:2.5rem 1.5rem 5rem}.estrecho{max-width:420px;margin:0 auto;padding:4rem 1.5rem}.tenue{color:var(--tenue)}.pequeno{font-size:.875rem}.barra{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.5rem;background:var(--superficie);border-bottom:1px solid var(--borde)}.logo{font-weight:700;letter-spacing:.12em;color:var(--marca-primario)}.tarjeta{background:var(--superficie);border:1px solid var(--borde);border-radius:var(--radio);padding:1.5rem;box-shadow:var(--sombra)}.rejilla{display:grid;grid-gap:1rem;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}label{display:block;font-weight:600;font-size:.875rem;margin:0 0 .375rem}input{width:100%;padding:.7rem .85rem;font:inherit;border:1px solid var(--borde);border-radius:10px;background:var(--superficie)}input:focus-visible{outline:2px solid var(--marca-primario);outline-offset:1px}.campo{margin-bottom:1rem}button{font:inherit;font-weight:600;cursor:pointer;padding:.7rem 1.15rem;border-radius:10px;border:1px solid var(--marca-primario);background:var(--marca-primario);color:#fff}button:hover{filter:brightness(1.08)}button:focus-visible{outline:2px solid var(--texto);outline-offset:2px}.boton-plano{background:transparent;color:var(--tenue);border-color:transparent}.error{background:#fef2f2;border:1px solid #fecaca;color:var(--peligro);border-radius:10px;padding:.75rem 1rem;margin-bottom:1rem;font-size:.9rem}.codigo{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:1.5rem;font-weight:700;letter-spacing:.18em;color:var(--marca-primario);background:var(--marca-primario-suave);border-radius:8px;padding:.4rem .7rem;display:inline-block}.vacio{border:1px dashed var(--borde);border-radius:var(--radio);padding:3rem 1.5rem;text-align:center;color:var(--tenue)}