:root{--bg-primary: #0d1117;--bg-secondary: #161B22;--bg-tertiary: #1c2028;--bg-elevated: #1c2028;--bg-hover: #22272e;--border: #2a2f38;--border-light: #363d4a;--text-primary: #e4e6f0;--text-secondary: #9ba1b8;--text-muted: #6b7280;--accent: #3B82F6;--accent-hover: #60a5fe;--accent-glow: rgba(59, 130, 246, .25);--green: #34d399;--green-bg: rgba(52, 211, 153, .12);--yellow: #fbbf24;--yellow-bg: rgba(251, 191, 36, .12);--red: #f87171;--red-bg: rgba(248, 113, 113, .12);--blue: #60a5fa;--blue-bg: rgba(96, 165, 250, .12);--radius: 8px;--radius-sm: 4px;--radius-lg: 10px;--shadow: 0 1px 4px rgba(0, 0, 0, .25);--shadow-lg: 0 2px 12px rgba(0, 0, 0, .35);--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--transition: .15s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-light)}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:230px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px 0;flex-shrink:0}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:0 20px;margin-bottom:24px;font-size:1.15rem;font-weight:700;color:var(--text-primary)}.sidebar-logo svg{width:26px;height:26px;color:var(--accent)}.sidebar-nav{display:flex;flex-direction:column;gap:2px;padding:0 10px;flex:1;overflow-y:auto}.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);font-size:.92rem;font-weight:500;border:none;background:none;text-align:left;width:100%}.nav-item:hover{color:var(--text-primary);background:var(--bg-hover)}.nav-item.active{color:var(--accent);background:var(--accent-glow)}.nav-item svg{width:18px;height:18px;flex-shrink:0}.main-content{flex:1;overflow:hidden;display:flex;flex-direction:column}.content-header{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;border-bottom:1px solid var(--border);background:var(--bg-secondary);flex-shrink:0}.content-header h1{font-size:1.3rem;font-weight:700}.content-body{flex:1;overflow:auto;padding:24px 28px}.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:var(--radius-sm);font-size:.88rem;font-weight:500;cursor:pointer;transition:all var(--transition);border:1px solid transparent;font-family:var(--font);white-space:nowrap}.btn svg{width:16px;height:16px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover{background:var(--bg-hover)}.btn-danger{background:var(--red-bg);color:var(--red);border-color:#f871714d}.btn-danger:hover{background:#f8717140}.btn-sm{padding:5px 10px;font-size:.82rem}.btn:disabled{opacity:.5;cursor:default}.card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.card-title{font-size:1rem;font-weight:600}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}th{text-align:left;padding:10px 14px;font-size:.78rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border)}td{padding:10px 14px;border-bottom:1px solid var(--border);font-size:.9rem;color:var(--text-secondary)}tr:hover td{background:var(--bg-hover)}.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:20px;font-size:.76rem;font-weight:600}.badge-green{background:var(--green-bg);color:var(--green)}.badge-yellow{background:var(--yellow-bg);color:var(--yellow)}.badge-red{background:var(--red-bg);color:var(--red)}.badge-blue{background:var(--blue-bg);color:var(--blue)}.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor}.form-group{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}.form-group label{font-size:.82rem;font-weight:500;color:var(--text-secondary)}.form-input{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px;color:var(--text-primary);font-size:.88rem;font-family:var(--font);transition:border-color var(--transition);outline:none}.form-input:focus{border-color:var(--accent)}.form-input::placeholder{color:var(--text-muted)}select.form-input{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239ba1b8' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:28px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0a0fb3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;width:420px;max-width:90vw}.modal-title{font-size:1.1rem;font-weight:700;margin-bottom:18px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;color:var(--text-muted);text-align:center}.empty-state svg{width:48px;height:48px;margin-bottom:14px;opacity:.5}.empty-state h3{font-size:1rem;margin-bottom:6px;color:var(--text-secondary)}.empty-state p{font-size:.88rem}.login-container{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg-primary)}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;width:360px}.login-title{font-size:1.4rem;font-weight:700;text-align:center;margin-bottom:24px;color:var(--text-primary)}.login-title span{color:var(--accent)}.network-canvas{width:100%;height:100%;background:var(--bg-primary);border-radius:var(--radius);border:1px solid var(--border)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:flex;align-items:center;gap:14px}.stat-icon{width:42px;height:42px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center}.stat-icon svg{width:22px;height:22px}.stat-icon.accent{background:var(--accent-glow);color:var(--accent)}.stat-icon.green{background:var(--green-bg);color:var(--green)}.stat-icon.yellow{background:var(--yellow-bg);color:var(--yellow)}.stat-icon.blue{background:var(--blue-bg);color:var(--blue)}.stat-info h3{font-size:1.5rem;font-weight:700;color:var(--text-primary)}.stat-info p{font-size:.82rem;color:var(--text-muted)}.toast-container{position:fixed;top:20px;right:20px;z-index:200;display:flex;flex-direction:column;gap:8px}.toast{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 18px;font-size:.88rem;animation:slideIn .2s ease;max-width:320px}.toast-success{border-left:3px solid var(--green)}.toast-error{border-left:3px solid var(--red)}.toast-info{border-left:3px solid var(--blue)}@keyframes slideIn{0%{transform:translate(80px);opacity:0}to{transform:translate(0);opacity:1}}