/* ===============================
   VERTICAL SIDEBAR MENU STYLES
=============================== */

.sidebar-sticky {
    position: sticky;
    top: 20px;
}

.sidebar-card {
    border: none;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.sidebar-card .card-header {
    border-bottom: none;
    padding: 1.25rem 1.5rem;
}

.sidebar-card .card-body {
    padding: 0;
}

/* Vertical Menu */
.vertical-menu {
    padding: 0;
}

.category-item {
    border-bottom: 1px solid var(--gray-light);
}

.category-item:last-child {
    border-bottom: none;
}

.category-parent {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--dark-color);
    font-weight: 500;
    background: white;
    transition: var(--transition);
    text-decoration: none;
    border-left: 3px solid transparent;
}

.category-parent:hover {
    background: var(--primary-color);
    color: white;
    border-left-color: var(--secondary-color);
    padding-left: 1.75rem;
}

.category-parent:hover .toggle-icon {
    color: white;
}

.category-parent i:first-child {
    width: 20px;
    text-align: center;
}

.toggle-icon {
    font-size: 0.875rem;
    color: var(--gray-color);
    transition: var(--transition);
}

/* Subcategories */
.subcategories {
    display: none;
    background: var(--gray-light);
    padding: 0.5rem 0;
}

.subcategory-item {
    display: block;
    padding: 0.5rem 1.5rem 0.5rem 3rem;
    color: var(--gray-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    position: relative;
}

.subcategory-item:hover {
    color: var(--primary-color);
    background: rgba(30, 60, 114, 0.05);
    padding-left: 3.25rem;
}

.subcategory-item::before {
    content: '';
    position: absolute;
    left: 2rem;
    top: 50%;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    transform: translateY(-50%);
}

/* Mobile Toggle for Categories */
.mobile-categories-toggle {
    display: none;
}

@media (max-width: 768px) {
    .mobile-categories-toggle {
        display: block;
        margin-bottom: 1rem;
    }
    
    .vertical-menu {
        display: none;
    }
    
    .vertical-menu.show {
        display: block;
    }
}

/* Back to Top Button */
.btn-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.btn-back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.btn-back-to-top:hover {
    transform: translateY(-5px);
}