.notifications-loading {
    background: linear-gradient(110deg, #ececec 8%, #f5f5f5 18%, #ececec 33%);
    border-radius: 5px;
    background-size: 200% 100%;
    animation: 1.5s loader-skeleton linear infinite;
    height: 10rem;
    margin-bottom: 1rem;
}

.notification-title {
    font-size: 1.3rem;
}

.notification-item {
    padding: 10px;
    border-bottom: 1px solid #dee2e6;
    /* Línea gris clara */
    position: relative;
}

.notification-section-header {
    background-color: #f8f9fa;
    padding-top: 5px;
    padding-bottom: 5px;
    border-top: 1px solid #dee2e6;
    font-size: 12px;
}

.list-group-item {
    border-top: 1px solid #e0e0e0 !important;
    border-bottom: 1px solid #e0e0e0 !important;
    transition: background 0.2s;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.rounded-x {
    border-radius: 1rem !important;
}

.rounded-top-x {
    border-top-left-radius: 1rem !important;
    border-top-right-radius: 1rem !important;
}

.rounded-bottom-x {
    border-bottom-left-radius: 1rem !important;
    border-bottom-right-radius: 1rem !important;
}

.notification-link {
    transition: background-color 0.2s, box-shadow 0.2s;
    border-radius: inherit;
}

.notification-link:hover {
    background-color: #a8d3ff;
    box-shadow: inset 0 0 0 999px rgba(0, 0, 0, 0.02);
    text-decoration: none;
}

.mark-read-btn {
    background: none;
    border: none;
    padding: 0.45rem;
    border-radius: 50%;
    transition: background-color 0.25s ease, transform 0.1s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.mark-read-btn i {
    font-size: 1rem;
    color: #0d6efd;
    /* Azul por defecto */
    transition: color 0.25s ease;
}

.mark-read-btn:hover {
    background-color: #b5d2ff;
}

.mark-read-btn:hover i {
    color: #fff;
}

.mark-read-btn:active {
    transform: scale(0.95);
}