/* DSS WhatsApp Button — frontend (sin tokens: dss-ui.css no se carga aquí) */

.dss-wab {
    position: fixed;
    bottom: var(--dss-wab-y, 20px);
    right: var(--dss-wab-x, 20px);
    z-index: 99990;
    display: flex;
    align-items: center;
    gap: 2px;
    height: var(--dss-wab-size, 56px);
    min-width: var(--dss-wab-size, 56px);
    border-radius: 999px;
    background: var(--dss-wab-bg, #25d366);
    color: #fff;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(0, 0, 0, .22);
    transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
}
.dss-wab--left { right: auto; left: var(--dss-wab-x, 20px); }

.dss-wab:hover,
.dss-wab:focus,
.dss-wab:visited { color: #fff; }
/* Sin :focus: en Android el enlace conserva el foco al volver de WhatsApp. */
.dss-wab:hover,
.dss-wab:focus-visible { transform: scale(1.06); }
/* Anillo doble: visible sobre fondos claros y oscuros. */
.dss-wab:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 0;
    box-shadow: 0 0 0 6px #1e293b, 0 6px 20px rgba(0, 0, 0, .22);
}

.dss-wab svg {
    flex: 0 0 auto;
    width: calc(var(--dss-wab-size, 56px) * .55);
    height: calc(var(--dss-wab-size, 56px) * .55);
    margin: 0 calc(var(--dss-wab-size, 56px) * .225);
}

.dss-wab__label {
    padding-right: 20px;
    font: 600 15px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    white-space: nowrap;
    max-width: calc(100vw - 2 * var(--dss-wab-x, 20px) - var(--dss-wab-size, 56px) - 20px);
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Pulso */
.dss-wab--pulse::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: inherit;
    z-index: -1;
    animation: dss-wab-pulse 2s ease-out infinite;
}
@keyframes dss-wab-pulse {
    0%   { transform: scale(1);   opacity: .6; }
    100% { transform: scale(1.5); opacity: 0; }
}

/* Oculto solo si el JS ha cargado (.dss-wab--armed) y aún no hay scroll:
   sin JS el botón queda siempre visible. */
.dss-wab--armed.dss-wab--scroll-desktop:not(.is-visible) {
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    pointer-events: none;
}

@media (max-width: 767px) {
    /* Márgenes de móvil. Se reasignan las propiedades, no las variables:
       las del atributo style ganarían a cualquier regla de la hoja. */
    .dss-wab {
        bottom: var(--dss-wab-y-m, 16px);
        right: var(--dss-wab-x-m, 16px);
    }
    .dss-wab--left { right: auto; left: var(--dss-wab-x-m, 16px); }
    .dss-wab__label {
        max-width: calc(100vw - 2 * var(--dss-wab-x-m, 16px) - var(--dss-wab-size, 56px) - 20px);
    }
    .dss-wab--desktop { display: none; }
    .dss-wab--armed.dss-wab--scroll:not(.is-visible) {
        opacity: 0;
        visibility: hidden;
        transform: translateY(20px);
        pointer-events: none;
    }
}
@media (min-width: 768px) {
    .dss-wab--mobile { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .dss-wab { transition: none; }
    .dss-wab--pulse::before { animation: none; }
}

@media print {
    .dss-wab { display: none; }
}