/* Hiệu ứng underline #B80023 */
.cool-link {
    position: relative;
    transition: color 0.3s ease;
}

    .cool-link::after {
        content: '';
        position: absolute;
        width: 0%;
        height: 2px;
        bottom: 0;
        left: 0;
        background-color: #B80023;
        transition: width 0.3s ease;
    }

    .cool-link:hover::after {
        width: 100%;
    }

    .cool-link:hover {
        color: #B80023 !important;
    }

/* Avatar glow #B80023 */
.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

    .user-avatar:hover {
        border-color: #B80023;
        box-shadow: 0 0 8px rgba(184,0,35,0.6);
    }

/* Dropdown animation */
.animate-dropdown {
    animation: dropdownFade 0.25s ease;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}