/* ================================================================== */
/*  Sticky Header Widget — sticky-header.css                          */
/* ================================================================== */

/* -- Header padrão ------------------------------------------------- */
.shw-default {
    transition: opacity var(--shw-transition, 250ms) ease,
                visibility var(--shw-transition, 250ms) ease;
    will-change: opacity;
}

.shw-default.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* -- Header sticky ------------------------------------------------- */
.shw-sticky {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--shw-transition, 250ms) ease,
                visibility var(--shw-transition, 250ms) ease;
    will-change: opacity;
}

.shw-sticky.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* -- Sombra opcional ----------------------------------------------- */
.shw-sticky.shw-shadow {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.10);
}