/* ─── ScrollGlide – Frontend Button ─────────────────────────────────────────── */

#scroll-glide-btn {
    position: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    outline: none;
    padding: 0;
    margin: 0;
    line-height: 1;
    border: none;
    background: none;
    /* All visual properties come from inline styles set by JS / wp_localize_script */
    transition:
        background-color 0.22s ease,
        box-shadow       0.22s ease,
        transform        0.22s ease,
        opacity          0.28s ease;
    opacity: 0;
    pointer-events: none;
    overflow: visible;
}

/* Visible state */
#scroll-glide-btn.sg-visible {
    pointer-events: auto;
}

/* ── SVG icon ───────────────────────────────────────────────────────────────── */
#scroll-glide-btn svg {
    width: 45%;
    height: 45%;
    display: block;
    flex-shrink: 0;
    /* color / stroke / fill are set by JS */
    transition: transform 0.22s ease;
    pointer-events: none;
}

/* ── Tooltip ────────────────────────────────────────────────────────────────── */
.sg-tooltip {
    position: absolute;
    white-space: nowrap;
    background: rgba(15, 15, 25, 0.88);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 5px 10px;
    border-radius: 5px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.18s ease, transform 0.18s ease;
    z-index: 1;
}

/* Right-side tooltip appears to the left of the button */
#scroll-glide-btn.sg-side-right .sg-tooltip {
    right: calc(100% + 10px);
    top: 50%;
    transform: translateY(-50%) translateX(6px);
}
#scroll-glide-btn.sg-side-right .sg-tooltip::after {
    content: '';
    position: absolute;
    right: -5px;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-right: none;
    border-left-color: rgba(15, 15, 25, 0.88);
}

/* Left-side tooltip appears to the right of the button */
#scroll-glide-btn.sg-side-left .sg-tooltip {
    left: calc(100% + 10px);
    top: 50%;
    transform: translateY(-50%) translateX(-6px);
}
#scroll-glide-btn.sg-side-left .sg-tooltip::after {
    content: '';
    position: absolute;
    left: -5px;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-left: none;
    border-right-color: rgba(15, 15, 25, 0.88);
}

/* Show tooltip on hover */
#scroll-glide-btn:hover .sg-tooltip {
    opacity: 1;
}
#scroll-glide-btn.sg-side-right:hover .sg-tooltip {
    transform: translateY(-50%) translateX(0);
}
#scroll-glide-btn.sg-side-left:hover .sg-tooltip {
    transform: translateY(-50%) translateX(0);
}

/* ── Entrance animations ─────────────────────────────────────────────────────── */

/* fade + slide up */
#scroll-glide-btn.sg-anim-fade-slide                    { transform: translateY(14px); }
#scroll-glide-btn.sg-anim-fade-slide.sg-visible         { opacity: 1; transform: translateY(0); }

/* fade only */
#scroll-glide-btn.sg-anim-fade                          { transform: none; }
#scroll-glide-btn.sg-anim-fade.sg-visible               { opacity: 1; }

/* scale pop */
#scroll-glide-btn.sg-anim-scale                         { transform: scale(0.55); }
#scroll-glide-btn.sg-anim-scale.sg-visible              { opacity: 1; transform: scale(1); }

/* no animation */
#scroll-glide-btn.sg-anim-none                          { transition: none; }
#scroll-glide-btn.sg-anim-none.sg-visible               { opacity: 1; }