.modern-sidebar {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.08);
    border-right: 1px solid #e2e8f0;
}

.modern-sidebar .navbar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid #e2e8f0;
    background: white;
}

.modern-sidebar .logo-link {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modern-sidebar .logo-link:hover {
    transform: scale(1.05);
}

.modern-sidebar .sidebar-nav {
    padding: 16px 12px;
}

.modern-sidebar .nav-item {
    margin-bottom: 4px;
}

.modern-sidebar .nav-link-modern {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: 12px;
    color: #4a5568;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
    font-size: 15px;
}

.modern-sidebar .nav-link-modern:hover {
    background: rgba(102, 126, 234, 0.08);
    color: #667eea;
    transform: translateX(4px);
}

.modern-sidebar .nav-link-modern .icon-wrapper {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f7fafc;
    border-radius: 10px;
    margin-right: 12px;
    transition: all 0.3s ease;
}

.modern-sidebar .nav-link-modern:hover .icon-wrapper {
    background: rgba(102, 126, 234, 0.15);
    transform: scale(1.05);
}

.modern-sidebar .nav-link-modern .icon-wrapper i {
    font-size: 20px;
    color: #667eea;
    transition: all 0.3s ease;
}

.modern-sidebar .nav-link-modern:hover .icon-wrapper i {
    color: #667eea;
}

.modern-sidebar .nav-link-modern .text {
    flex: 1;
}

.modern-sidebar .nav-link-modern .arrow-icon {
    margin-left: auto;
    transition: all 0.3s ease;
}

.modern-sidebar .nav-link-modern .arrow-icon i {
    font-size: 14px;
}

.modern-sidebar .nav-link-modern:not(.collapsed) .arrow-icon i {
    transform: rotate(180deg);
}

.modern-sidebar .nav-divider {
    padding: 20px 16px 12px;
    margin-bottom: 8px;
}

.modern-sidebar .nav-divider .divider-text {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #a0aec0;
}

.modern-sidebar .dropdown-nav {
    padding: 8px 0;
    margin-left: 52px;
    border-left: 2px solid #e2e8f0;
}

.modern-sidebar .dropdown-nav li {
    margin-bottom: 4px;
}

.modern-sidebar .dropdown-link {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    border-radius: 8px;
    color: #718096;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
}

.modern-sidebar .dropdown-link:hover {
    background: #f7fafc;
    color: #667eea;
    transform: translateX(4px);
    padding-left: 20px;
}

.modern-sidebar .dropdown-link i {
    font-size: 16px;
    margin-right: 10px;
    width: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.modern-sidebar .dropdown-link:hover i {
    color: #667eea;
    transform: scale(1.2);
}

.modern-sidebar .nav-link-modern.active,
.modern-sidebar .nav-link-modern[aria-expanded="true"] {
    background: rgba(59, 130, 246, 0.12);
    color: #3b82f6;
    border-left: 3px solid #3b82f6;
    padding-left: 13px;
}

.modern-sidebar .nav-link-modern.active .icon-wrapper,
.modern-sidebar .nav-link-modern[aria-expanded="true"] .icon-wrapper {
    background: rgba(59, 130, 246, 0.15);
}

.modern-sidebar .nav-link-modern.active .icon-wrapper i,
.modern-sidebar .nav-link-modern[aria-expanded="true"] .icon-wrapper i {
    color: #3b82f6;
}

.modern-sidebar .dropdown-link.active {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: #667eea;
    font-weight: 600;
    border-left: 3px solid #667eea;
    padding-left: 17px;
}

@media (max-width: 1199px) {
    .modern-sidebar .nav-link-modern .text,
    .modern-sidebar .nav-divider,
    .modern-sidebar .arrow-icon {
        display: none;
    }
    
    .modern-sidebar .nav-link-modern {
        justify-content: center;
        padding: 12px;
    }
    
    .modern-sidebar .nav-link-modern .icon-wrapper {
        margin-right: 0;
    }
    
    .modern-sidebar .dropdown-nav {
        margin-left: 0;
        padding-left: 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .modern-sidebar .nav-link-modern,
    .modern-sidebar .dropdown-link,
    .modern-sidebar .icon-wrapper,
    .modern-sidebar .logo-link {
        transition: none;
    }
}