.submenu{position:fixed;width:200px;background-color:var(--color-bg-primary);border:1px solid var(--color-border);border-radius:4px;box-shadow:2px 2px 8px #0000001a;z-index:1001;overflow:hidden;animation:submenuFadeIn .2s ease}@keyframes submenuFadeIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.submenu-header{padding:12px 16px;border-bottom:1px solid var(--color-border);background-color:var(--color-bg-secondary)}.submenu-title{font-size:13px;font-weight:600;color:var(--color-text-primary);text-transform:uppercase;letter-spacing:.5px}.submenu-content{overflow-y:auto;max-height:400px}.feature-item{display:flex;align-items:center;padding:10px 16px;cursor:pointer;transition:background-color .2s ease;border-bottom:1px solid var(--color-border)}.feature-item:last-child{border-bottom:none}.feature-item:hover{background-color:var(--color-hover)}.feature-item:focus{outline:2px solid var(--color-border-dark);outline-offset:-2px}.feature-label{font-size:14px;color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media (max-width: 1079px){.submenu{left:var(--sidebar-collapsed-width)!important}}.menu-section{flex:1;overflow-y:auto;display:flex;flex-direction:column;padding:8px 0;border-top:1px solid var(--color-border)}.category-item{display:flex;align-items:center;padding:12px 16px;cursor:pointer;transition:background-color .2s ease;-webkit-user-select:none;user-select:none;border-bottom:1px solid transparent;gap:12px}.category-item:hover{background-color:var(--color-hover)}.category-item.active{background-color:var(--color-active);border-left:3px solid var(--color-text-primary);padding-left:13px}.category-item:focus{outline:2px solid var(--color-border-dark);outline-offset:-2px}.category-icon{display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--color-text-primary)}.category-label{font-size:14px;font-weight:500;color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.category-item.collapsed{justify-content:center;padding:12px 8px}.category-item.collapsed .category-label{display:none}.sidebar{position:fixed;top:0;left:0;height:100vh;background-color:var(--color-bg-primary);border-right:1px solid var(--color-border);display:flex;flex-direction:column;transition:width var(--sidebar-transition);overflow:hidden;z-index:1000}.logo-section{height:var(--logo-section-height);display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--color-border);cursor:pointer;transition:background-color .2s ease}.logo-section:hover{background-color:var(--color-hover)}.logo-section:focus{outline:2px solid var(--color-border-dark);outline-offset:-2px}.logo-square{width:80px;height:auto}.logo-full{width:210px;height:auto}.logo-placeholder.square{font-size:20px;font-weight:700;width:50px;height:50px;border:2px solid var(--color-border-dark);border-radius:6px;background-color:var(--color-bg-secondary)}.toggle-button{height:var(--toggle-button-height);width:100%;border:none;border-bottom:1px solid var(--color-border);background-color:var(--color-bg-primary);color:var(--color-text-primary);cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center;transition:background-color .2s ease}.toggle-button:hover:not(:disabled){background-color:var(--color-hover)}.toggle-button:active:not(:disabled){background-color:var(--color-active)}.toggle-button:disabled{opacity:.4;cursor:not-allowed}.toggle-button:focus{outline:2px solid var(--color-border-dark);outline-offset:-2px}.sidebar-section{border-bottom:1px solid var(--color-border);display:flex;align-items:center;justify-content:center;padding:16px;background-color:var(--color-bg-secondary)}.sidebar-section.profile-section{min-height:60px;border-bottom:1px solid var(--color-border)}.sidebar-section.menu-section{flex:1;overflow-y:auto;align-items:flex-start;padding-top:20px}.sidebar-section.logout-section{min-height:60px;margin-top:auto;border-top:1px solid var(--color-border);border-bottom:none}.placeholder-content{color:var(--color-text-secondary);font-size:14px;font-weight:500;text-align:center;-webkit-user-select:none;user-select:none}.sidebar.collapsed .placeholder-content{font-size:20px}@media (max-width: 1079px){.sidebar{width:var(--sidebar-collapsed-width)!important}}.breadcrumb{padding:12px 20px;border-bottom:1px solid var(--color-border);background-color:var(--color-bg-primary);font-size:14px}.breadcrumb-item{color:var(--color-text-secondary);font-weight:400}.breadcrumb-link{color:var(--color-text-secondary);text-decoration:none;transition:color .2s ease}.breadcrumb-link:hover{color:var(--color-primary);text-decoration:underline}.breadcrumb-current{color:var(--color-text-primary);font-weight:500}.breadcrumb-separator{color:var(--color-text-secondary);margin:0 8px}.working-area{min-height:100vh;background-color:var(--color-bg-secondary);padding:20px;overflow-y:auto;overflow-x:hidden;transition:margin-left var(--sidebar-transition),width var(--sidebar-transition)}@media (max-width: 1079px){.working-area{margin-left:var(--sidebar-collapsed-width)!important;width:calc(100vw - var(--sidebar-collapsed-width))!important}}