/* ==========================================================================
   SECTION STICKY ICON GROUP - LIVING HOPE
   Floating WhatsApp & Zalo Buttons (Right-aligned, Tooltip Hover, Smooth Transitions)
   ========================================================================== */

.sticky-icon-group {
    position: fixed !important;
    bottom: 30px !important;
    right: 25px !important;
    left: auto !important;
    display: flex !important;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
    z-index: 99999 !important;
    pointer-events: auto !important;
}

.sticky-icon-group__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none !important;
    position: relative;
    cursor: pointer !important;
    pointer-events: auto !important;
    background: transparent;
    border: none;
    padding: 0;
    outline: none;
    transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sticky-icon-group__link:hover {
    transform: translateY(-3px) scale(1.08);
}

.sticky-icon-group__link:active {
    transform: translateY(-1px) scale(0.96);
}

/* Khung chứa Icon - Để trong suốt, không nền trắng, không bo viền thừa */
.sticky-icon-group__icon-wrapper {
    position: relative;
    width: 48px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    overflow: visible;
}

.sticky-icon-group__img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    pointer-events: none;
    user-select: none;
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.18));
    transition: filter 0.28s ease;
}

.sticky-icon-group__link:hover .sticky-icon-group__img {
    filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.28));
}

/* Tooltip hiển thị khi rê chuột (Desktop) */
.sticky-icon-group__tooltip {
    position: absolute;
    right: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%) translateX(8px);
    background: rgba(30, 41, 59, 0.92);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: #ffffff;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
    letter-spacing: 0.2px;
    font-family: inherit;
    line-height: 1.4;
}

.sticky-icon-group__tooltip::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -5px;
    transform: translateY(-50%);
    border-width: 5px 0 5px 5px;
    border-style: solid;
    border-color: transparent transparent transparent rgba(30, 41, 59, 0.92);
}

.sticky-icon-group__link:hover .sticky-icon-group__tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

/* Responsive Mobile (< 768px) */
@media (max-width: 768px) {
    .sticky-icon-group {
        bottom: 20px !important;
        right: 16px !important;
        gap: 10px;
    }

    .sticky-icon-group__icon-wrapper {
        width: 44px;
        height: 44px;
    }

    .sticky-icon-group__tooltip {
        display: none !important;
    }
}