:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-sidebar: #1a1f2e;--color-sidebar-hover: #252b3b;--color-sidebar-active: #2d3548;--color-text: #1e293b;--color-text-muted: #64748b;--color-text-sidebar: #e2e8f0;--color-text-sidebar-muted: #94a3b8;--color-border: #e2e8f0;--color-border-dark: #cbd5e1;--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-danger: #ef4444;--color-danger-hover: #dc2626;--color-success: #22c55e;--color-warning: #f59e0b;--color-online: #22c55e;--color-offline: #6b7280;--color-pending: #f59e0b;--color-registered: #3b82f6;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--font-mono: "Courier New", Courier, monospace}[data-theme=dark]{--color-bg: #0f1117;--color-surface: #161b27;--color-text: #e2e8f0;--color-text-muted: #94a3b8;--color-border: #1e293b;--color-border-dark: #334155;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4)}[data-theme=dark] .skeleton{background:linear-gradient(90deg,#1a1f2e 25%,#1e2436,#1a1f2e 75%);background-size:800px 100%;animation:shimmer 1.5s infinite}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}#app{height:100%}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit;font-size:14px}input,select,textarea{font-family:inherit;font-size:14px}.mono{font-family:var(--font-mono)}.text-muted{color:var(--color-text-muted)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius-md);border:1px solid transparent;font-weight:500;transition:background .15s,border-color .15s,opacity .15s;white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.btn-danger{background:var(--color-danger);color:#fff;border-color:var(--color-danger)}.btn-danger:hover:not(:disabled){background:var(--color-danger-hover);border-color:var(--color-danger-hover)}.btn-ghost{background:transparent;color:var(--color-text);border-color:var(--color-border)}.btn-ghost:hover:not(:disabled){background:var(--color-bg)}.btn-sm{padding:5px 10px;font-size:12px}.btn-icon{padding:6px;border-radius:var(--radius-md);border:1px solid var(--color-border);background:transparent;color:var(--color-text-muted);display:inline-flex;align-items:center;justify-content:center}.btn-icon:hover{background:var(--color-bg);color:var(--color-text)}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-weight:500;font-size:13px;color:var(--color-text)}.form-control{padding:8px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);transition:border-color .15s,box-shadow .15s;outline:none;width:100%}.form-control:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f61a}.form-control::placeholder{color:var(--color-text-muted)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.table-container{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--color-border)}table{width:100%;border-collapse:collapse}thead{background:var(--color-bg)}th{text-align:left;padding:10px 14px;font-weight:600;font-size:12px;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--color-border);white-space:nowrap}td{padding:12px 14px;border-bottom:1px solid var(--color-border);vertical-align:middle}tbody tr:last-child td{border-bottom:none}tbody tr:hover{background:var(--color-bg)}.error-text{color:var(--color-danger);font-size:13px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-title{font-size:22px;font-weight:700;color:var(--color-text)}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e8e8e8,#f0f0f0 75%);background-size:800px 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}.spinner{width:32px;height:32px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.chip{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;background:var(--color-bg);border:1px solid var(--color-border);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em}.divider{border:none;border-top:1px solid var(--color-border)}