.sidebar-modern{--bg: #ffffff;--fg: #1f2937;--muted: #6b7280;--line: #e5e7eb;--hover: #f3f4f6;--active-bg: #eef2ff;--active: #1d4ed8;width:300px;background:var(--bg);border-right:1px solid var(--line);padding:14px 12px}.sidebar.sidebar-modern{width:270px;flex:0 0 270px}.sidebar-modern .logo-container{padding:8px 8px 14px;border-bottom:1px solid var(--line);margin-bottom:12px;text-align:center}.sidebar-modern .nav-label{font-size:11px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;margin:12px 8px 6px}.sidebar-modern .section-card{border-radius:10px;margin:6px 4px 10px;border:1px solid var(--line);background:#fff;overflow:hidden}.sidebar-modern .section-inner{padding:10px 10px 12px}.sidebar-modern .subhead{font-size:12px;color:var(--muted);margin:6px 6px 4px}.sidebar-modern .nav-list{list-style:none;padding:0;margin:2px 4px 8px}.sidebar-modern .nav-link,.sidebar-modern .nav-link:link,.sidebar-modern .nav-link:visited{display:flex;align-items:center;gap:10px;color:var(--fg);text-decoration:none;white-space:nowrap;padding:6px 10px;border-radius:8px;line-height:1.25;min-height:36px}.sidebar-modern .nav-link:hover{background:var(--hover)}.sidebar-modern .nav-link.active{background:var(--active-bg);color:var(--active);font-weight:600}.sidebar-modern .nav-link .icon{flex:0 0 18px;width:18px;height:18px;color:currentColor}.sidebar-modern .nav-list li+li{margin-top:2px}@media (max-width: 640px){.sidebar.sidebar-modern{width:100%;max-width:100%;border-right:none;border-bottom:1px solid var(--line);padding:10px 8px;flex:none}.sidebar-modern .section-card{margin:8px 0 12px;border-radius:12px}.sidebar-modern .section-inner{padding:10px 8px 12px}.sidebar-modern .nav-label{margin:10px 4px 6px}.sidebar-modern .subhead{margin:8px 6px 6px}.sidebar-modern .nav-list{margin:4px 0 8px}.sidebar-modern .nav-link{padding:12px;gap:12px;min-height:44px}.sidebar-modern .nav-link .icon{width:20px;height:20px}.sidebar-modern .logo-container img{max-width:160px;height:auto}}