.layout-container{min-height:100vh;display:flex}.sidebar{position:fixed;top:0;left:0;height:100vh;width:250px;background:#202328;color:white;display:flex;flex-direction:column;transition:width .3s;overflow-y:auto;z-index:100}.sidebar.collapsed{width:78px}.active .sidebar-item{color:#38bdf8}.active .sidebar-item svg{stroke:#38bdf8}.content{margin-left:250px;padding:20px;transition:margin-left .3s}.sidebar.collapsed~.content{margin-left:78px}.sidebar-header{text-align:center;padding:12px;font-weight:700;background:#111827}.sidebar-user{text-align:center;padding:8px}.sidebar-avatar{width:36px;height:36px;border-radius:50%;margin-bottom:4px}.sidebar-name{font-weight:600}.sidebar-status{color:#10b981}.sidebar-menu{list-style:none;padding:0;margin:0}.sidebar-menu li{padding:8px 16px;cursor:pointer;transition:.2s;white-space:nowrap;overflow:hidden}.sidebar-menu li:hover{color:#38bdf8}.submenu{padding-left:20px;transition:all .3s ease}.sidebar.collapsed .submenu{padding-left:14px}.content{flex:1 1;background:#f9fafb;padding:0}.topbar{height:48px;background:#3b82f6;display:flex;align-items:center;padding:0 12px}.toggle-btn{background:none;font-size:20px}.submenu{list-style:none;padding-left:30px}.submenu li{padding:6px 0;font-size:14px;color:#d1d5db}.arrow{display:inline-block;margin-left:8px;transition:transform .2s}.arrow.open{transform:rotate(-90deg)}.sidebar-user{position:relative;cursor:pointer}.sidebar-user:hover{color:#38bdf8}.user-submenu{position:absolute;top:100%;left:0;background:#424b5c;list-style:none;padding:5px 0;margin-top:5px;width:180px;border-radius:6px;border:1px solid #334155;z-index:999;opacity:0;transform:translateY(-10px);animation:slideDown .25s forwards}@keyframes slideDown{to{opacity:1;transform:translateY(0)}}@keyframes slideIn{to{opacity:1;transform:translateX(0)}}.user-submenu li{padding:8px 12px;color:white;cursor:pointer;white-space:nowrap;transition:background .2s;text-align:left}.user-submenu li:hover{color:#38bdf8}.sidebar-header{display:flex;align-items:center;gap:10px;padding:10px 15px;background-color:#202328;border-bottom:1px solid #334155}.toggle-btn{background:#334155;border:none;color:white;font-size:18px;padding:6px 10px;border-radius:6px;cursor:pointer;transition:background .2s}.toggle-btn:hover{background:#475569}.sidebar-user{display:flex;flex-direction:column;color:white;font-size:14px;line-height:1.2}.sidebar-name{font-weight:700}.sidebar-status{font-size:12px;color:#22c55e}.sidebar a,.sidebar a:active,.sidebar a:hover,.sidebar a:visited{color:white;text-decoration:none}.sidebar-item{display:flex;align-items:center;gap:8px}.sidebar-item-text{overflow:hidden;white-space:nowrap;transition:width .3s ease,opacity .3s ease;width:140px;opacity:1}.sidebar-item-text.collapsed{width:0;opacity:0}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:50}.modal-container{background:#fff;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.2);width:100%;max-width:420px;padding:24px;position:relative}.modal-title{font-size:20px;font-weight:600;margin-bottom:16px}.modal-form label{display:block;font-size:14px;font-weight:500;margin-bottom:6px}.modal-form input{width:100%;border:1px solid #ccc;border-radius:8px;padding:10px;margin-bottom:14px;font-size:14px;outline:none}.modal-form input:focus{border-color:#2563eb}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:16px}.modal-btn{padding:8px 16px;border-radius:8px;cursor:pointer;font-size:14px;border:1px solid #ccc;background:#f9f9f9}.modal-btn:hover{background:#eee}.modal-btn-primary{background:#2563eb;color:white;border:none}.modal-btn-primary:hover{background:#1d4ed8}.modal-btn-primary:disabled{opacity:.6;cursor:not-allowed}.modal-error{color:#dc2626;margin-bottom:10px}.modal-success{color:#16a34a;margin-bottom:10px}