.silbato { position: relative; }
.silbato__caja {
    background: linear-gradient(160deg, var(--panel2), var(--panel3)); border: 1px solid var(--linea-viva);
    border-radius: var(--r); padding: clamp(1.6rem, 4vw, 2.8rem); position: relative; overflow: hidden;
}
.silbato__caja::before {
    content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 5px;
    background: repeating-linear-gradient(90deg, var(--tinta) 0 14px, var(--fondo) 14px 28px);
    opacity: .5;
}
.silbato p { color: var(--tinta2); margin: 1rem 0 0; max-width: 75ch; }
.silbato p:first-of-type { margin-top: 1.2rem; }
.silbato__cta { margin-top: 1.8rem; display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }