.sidebar{width:var(--sidebar-w);background:var(--c-sidebar-bg);transition:width var(--ease-base);overflow:hidden}.sidebar.expanded{width:var(--sidebar-expanded)}.sidebar-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 4px;border-radius:var(--r-md);color:var(--c-sidebar-text);cursor:pointer;transition:all var(--ease-fast)}.sidebar-item:hover{background:var(--c-sidebar-hover)}.sidebar-item.active{background:var(--c-sidebar-active);color:var(--c-sidebar-icon-active)}.sidebar-item.disabled{opacity:.4;cursor:not-allowed}.sidebar-item .icon{color:var(--c-sidebar-icon);width:20px;height:20px}.sidebar-item.active .icon{color:var(--c-sidebar-icon-active)}.sidebar-item .label{font-size:10px;font-weight:500;text-align:center;line-height:1.2;max-width:56px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-header{height:var(--header-h);background:rgba(var(--c-bg-base),.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-border-100)}.content-area{padding:28px 32px;max-width:var(--content-max)}.card-interactive{transition:all var(--ease-base);cursor:pointer;border-color:var(--c-border-100)}.card-interactive:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:var(--c-border-200)}.gradient-primary{background:linear-gradient(135deg,var(--c-primary-500),var(--c-accent-500))}.gradient-sidebar{background:linear-gradient(180deg,var(--c-sidebar-bg),#0f0d2e)}.focus-ring:focus-visible{outline:none;box-shadow:var(--ring)}.status-dot{width:8px;height:8px;border-radius:50%}.status-dot.online{background:var(--c-success)}.status-dot.warning{background:var(--c-warning)}.status-dot.danger{background:var(--c-danger)}.status-dot.info{background:var(--c-info)}.tooltip-wrapper{position:relative}.tooltip-content{position:absolute;left:calc(100% + 8px);top:50%;transform:translateY(-50%);background:var(--c-text-900);color:var(--c-text-inv);padding:6px 10px;border-radius:var(--r-sm);font-size:12px;white-space:nowrap;pointer-events:none;opacity:0;transition:opacity var(--ease-fast);z-index:50}.tooltip-wrapper:hover .tooltip-content{opacity:1}