.container-header .navbar-brand a {
    text-decoration: none;
}

/* Make sure parent li has relative positioning */
ul.nav li.nav-item {
    position: relative;
}

/* Hide submenu by default */
ul.nav li.nav-item>ul,
ul.nav li.nav-item>div>ul {
    display: none;
    position: absolute;
    top: 100%;
    /* Stick just below the parent */
    left: 0;
    margin: 0;
    /* Remove flicker gap */
    padding: 0;
    list-style: none;
    min-width: 220px;
    background-color: #ffffff;
    border-radius: 0.5rem;
    border: 1px solid #dee2e6;
    box-shadow: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.1);
    z-index: 1050;
}

/* Show submenu on hover */
ul.nav li.nav-item:hover>ul,
ul.nav li.nav-item:hover>div>ul {
    display: block;
}

/* Submenu item styles */
ul.nav li.nav-item>ul>li,
ul.nav li.nav-item>div>ul>li {
    border-bottom: 1px solid #f1f1f1;
}

ul.nav li.nav-item>ul>li:last-child,
ul.nav li.nav-item>div>ul>li:last-child {
    border-bottom: none;
}

/* Submenu links */
ul.nav li.nav-item>ul>li>a,
ul.nav li.nav-item>div>ul>li>a {
    display: block;
    padding: 0.75rem 1.25rem;
    color: #212529;
    text-decoration: none;
    background-color: transparent;
    font-size: 1rem;
    font-family: inherit;
    transition: background-color 0.2s, color 0.2s;
}

/* Hover effect for submenu */
ul.nav li.nav-item>ul>li>a:hover,
ul.nav li.nav-item>div>ul>li>a:hover {
    background-color: #f0f0f5;
    color: #000;
}

.bulletin-img {
    width: 100px;
    padding: 3px;
    border: #000 1px solid;
    margin: 0 5px 0 0;
}

.container-sidebar-left ul.nav li.nav-item.parent > span::after,
.container-sidebar-left ul.nav li.nav-item.parent > a::after {
    content: "▶";
    float: right;
    margin-left: 8px;
    font-size: 0.85rem;
    font-weight: bold;
    color: #000; /* Pure black */
    transform: scale(1); /* No shrink */
}

.container-sidebar-left ul.nav li.nav-item {
    position: relative;
}

.container-sidebar-left ul.nav li.nav-item > ul {
    display: none;
    position: absolute;
    top: 0;
    left: 100%;
    margin-left: 0;
    padding: 0;
    list-style: none;
    min-width: 180px;
    background-color: #fff;
    border: 1px solid #dee2e6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    z-index: 10;
}

.container-sidebar-left ul.nav li.nav-item:hover > ul {
    display: block;
}

.container-sidebar-left ul.nav li.nav-item > ul > li {
    border-bottom: 1px solid #f1f1f1;
}

.container-sidebar-left ul.nav li.nav-item > ul > li:last-child {
    border-bottom: none;
}

.container-sidebar-left ul.nav li.nav-item > ul > li > a {
    display: block;
    padding: 0.4rem 0.8rem;
    color: #212529;
    text-decoration: none;
    background-color: transparent;
    font-size: 0.9rem;
    font-family: inherit;
    transition: background-color 0.2s, color 0.2s;
    white-space: nowrap;
}

.container-sidebar-left ul.nav li.nav-item > ul > li > a:hover {
    background-color: #f0f0f5;
    color: #000;
}

@media (width >= 1200px) {
    h2, .h2 {
        font-size: 1rem;
    }
}

.article-info-term{
  display: none;
}