:root{--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-primary-light: #3b82f6;--color-secondary: #64748b;--color-success: #22c55e;--color-warning: #f59e0b;--color-error: #ef4444;--color-info: #3b82f6;--color-white: #ffffff;--color-black: #000000;--color-gray-50: #f8fafc;--color-gray-100: #f1f5f9;--color-gray-200: #e2e8f0;--color-gray-300: #cbd5e1;--color-gray-400: #94a3b8;--color-gray-500: #64748b;--color-gray-600: #475569;--color-gray-700: #334155;--color-gray-800: #1e293b;--color-gray-900: #0f172a;--color-bg-primary: var(--color-gray-50);--color-bg-secondary: var(--color-white);--color-bg-card: var(--color-white);--color-bg-elevated: var(--color-white);--color-text-primary: var(--color-gray-900);--color-text-secondary: var(--color-gray-600);--color-text-muted: var(--color-gray-500);--color-border: var(--color-gray-200);--color-border-light: var(--color-gray-100);--font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-family-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, Monaco, monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--spacing-0: 0;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-10: 2.5rem;--spacing-12: 3rem;--spacing-16: 4rem;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-2xl: 1rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease;--z-dropdown: 100;--z-modal: 200;--z-toast: 300;--z-tooltip: 400}@media (prefers-color-scheme: dark){:root{--color-bg-primary: var(--color-gray-900);--color-bg-secondary: var(--color-gray-800);--color-bg-card: var(--color-gray-800);--color-bg-elevated: var(--color-gray-700);--color-text-primary: var(--color-gray-50);--color-text-secondary: var(--color-gray-400);--color-text-muted: var(--color-gray-500);--color-border: var(--color-gray-700);--color-border-light: var(--color-gray-800);--color-primary: #3b82f6;--color-primary-dark: #2563eb;--color-primary-light: #60a5fa}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family-base);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);min-height:100vh;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);color:var(--color-text-primary)}h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-3xl)}h3{font-size:var(--font-size-2xl)}h4{font-size:var(--font-size-xl)}h5{font-size:var(--font-size-lg)}h6{font-size:var(--font-size-base)}p{margin-bottom:var(--spacing-4)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark);text-decoration:underline}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-4);font-family:inherit;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);line-height:var(--line-height-normal);border:1px solid transparent;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}button:disabled,.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--color-primary);color:var(--color-white)}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-dark)}.btn-secondary{background-color:var(--color-bg-card);color:var(--color-text-secondary);border-color:var(--color-border)}.btn-secondary:hover:not(:disabled){background-color:var(--color-bg-secondary);border-color:var(--color-text-muted)}.btn-danger{background-color:var(--color-error);color:var(--color-white)}.btn-danger:hover:not(:disabled){background-color:#dc2626}input,textarea,select{width:100%;padding:var(--spacing-2) var(--spacing-3);font-family:inherit;font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1a}input::placeholder,textarea::placeholder{color:var(--color-text-muted)}label{display:block;margin-bottom:var(--spacing-1);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-4)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-success{color:var(--color-success)}.text-warning{color:var(--color-warning)}.text-error{color:var(--color-error)}.text-info{color:var(--color-info)}.badge{display:inline-flex;align-items:center;padding:var(--spacing-1) var(--spacing-2);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);border-radius:var(--radius-full)}.badge-healthy{background-color:#22c55e1a;color:var(--color-success)}.badge-warning{background-color:#f59e0b1a;color:var(--color-warning)}.badge-critical{background-color:#ef44441a;color:var(--color-error)}.badge-pending{background-color:#64748b1a;color:var(--color-secondary)}.card{background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.card-header{padding:var(--spacing-4) var(--spacing-6);border-bottom:1px solid var(--color-border)}.card-body{padding:var(--spacing-6)}.card-footer{padding:var(--spacing-4) var(--spacing-6);border-top:1px solid var(--color-border);background-color:var(--color-bg-secondary)}.loading{display:flex;align-items:center;justify-content:center;min-height:200px}.spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.hidden{display:none!important}#app{display:flex;flex-direction:column;min-height:100vh}main{flex:1;padding:var(--spacing-6) 0}.header{background-color:var(--color-bg-card);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:var(--z-dropdown)}.header-container{display:flex;align-items:center;justify-content:space-between;height:64px}.header-logo{display:flex;align-items:center;gap:var(--spacing-2);color:var(--color-text-primary);font-weight:var(--font-weight-semibold);text-decoration:none}.header-logo:hover{text-decoration:none}.logo-icon{color:var(--color-primary)}.logo-text{font-size:var(--font-size-lg)}.header-nav{display:flex;align-items:center;gap:var(--spacing-6)}.nav-list{display:flex;align-items:center;gap:var(--spacing-4);list-style:none;margin:0;padding:0}.nav-link{color:var(--color-text-secondary);font-weight:var(--font-weight-medium);padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-md);transition:color var(--transition-fast),background-color var(--transition-fast);text-decoration:none}.nav-link:hover{color:var(--color-text-primary);background-color:var(--color-bg-secondary);text-decoration:none}.nav-auth{display:flex;align-items:center;gap:var(--spacing-3)}.nav-user{position:relative}.user-menu-btn{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-1) var(--spacing-2);background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;transition:background-color var(--transition-fast)}.user-menu-btn:hover{background-color:var(--color-bg-secondary)}.user-avatar{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background-color:var(--color-primary);color:var(--color-white);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border-radius:var(--radius-full)}.user-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.dropdown-icon{color:var(--color-text-muted)}.user-dropdown{position:absolute;top:calc(100% + var(--spacing-2));right:0;min-width:180px;background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);list-style:none;padding:var(--spacing-2);margin:0;z-index:var(--z-dropdown)}.dropdown-item{display:block;width:100%;padding:var(--spacing-2) var(--spacing-3);font-size:var(--font-size-sm);color:var(--color-text-secondary);background:none;border:none;border-radius:var(--radius-md);text-align:left;cursor:pointer;text-decoration:none;transition:background-color var(--transition-fast)}.dropdown-item:hover{background-color:var(--color-bg-secondary);text-decoration:none}.dropdown-item-danger{color:var(--color-error)}.dropdown-item-danger:hover{background-color:#ef44441a}.dropdown-divider{margin:var(--spacing-2) 0;border:none;border-top:1px solid var(--color-border)}.mobile-menu-btn{display:none;padding:var(--spacing-2);background:transparent;border:none;cursor:pointer;color:var(--color-text-secondary)}@media (max-width: 768px){.mobile-menu-btn{display:flex}.header-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:var(--spacing-4);background-color:var(--color-bg-card);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-lg);display:none}.header-nav.nav-open{display:flex}.nav-list{flex-direction:column;align-items:stretch;gap:0}.nav-link{display:block;padding:var(--spacing-3)}.nav-auth{flex-direction:column;margin-top:var(--spacing-4);padding-top:var(--spacing-4);border-top:1px solid var(--color-border)}.nav-auth .btn{width:100%}.user-name{display:none}}