body {
    scroll-behavior: smooth;
}
.main-content {
    margin-left: 250px;
    padding: 2rem;
}
.section-title {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #dee2e6;
}
/* Sidebar layout */
.sidebar {
    height: 100vh;
    overflow-y: auto;
    position: fixed;
    width: 250px;
    top: 0;
    left: 0;
    border-right: 1px solid #dee2e6;
    background-color: #f8f9fa;
    padding-top: 1rem;
}

/* Title */
.sidebar h4 {
    font-weight: 600;
}

/* All nav links */
.sidebar .nav-link {
    color: #343a40;
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    transition: background-color 0.2s ease;
    border-radius: 4px;
}

/* Hover effect */
.sidebar .nav-link:hover {
    background-color: #e9ecef;
    color: #212529;
}

/* Main menu items with collapse */
.sidebar .nav-item > .nav-link[data-bs-toggle="collapse"] {
    background-color: #e2e6ea;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Sub-menu links inside collapses */
.sidebar .collapse .nav-link {
    padding-left: 2rem;
    font-size: 0.95rem;
    font-weight: 400;
    color: #495057;
}

/* Sub-menu hover */
.sidebar .collapse .nav-link:hover {
    background-color: #f1f3f5;
    color: #212529;
}

/* Toggle icon rotation */
.toggle-icon {
    transition: transform 0.3s ease;
}

.toggle-icon.rotate {
    transform: rotate(180deg);
}

/* Active menu item */
.sidebar .nav-link.active {
    background-color: #ced4da;
    font-weight: 600;
    color: #212529;
}