:root{--bg-primary:#0c1220;--bg-secondary:#111827;--bg-tertiary:#1a2332;--bg-canvas:#0a0e1a;--bg-input:#0d1424;--bg-console:#0a0e18;--bg-hover:#38bdf814;--bg-active:#38bdf81f;--text-primary:#e2e8f0;--text-secondary:#94a3b8;--text-muted:#64748b;--text-muted2:#475569;--border:#94a3b81f;--border-light:#94a3b80f;--accent:#38bdf8;--accent-dim:#0ea5e9;--accent-bg:#38bdf81a;--accent-hover:#38bdf826;--accent-border:#38bdf833;--success:#22c55e;--error:#ef4444;--warning:#f59e0b;--grid-color:#38bdf80a;--console-text:#22c55e;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--font-ui:"DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono:"JetBrains Mono", "Courier New", monospace;--transition:.15s ease}body.theme-light{--bg-primary:#f8fafc;--bg-secondary:#f1f5f9;--bg-tertiary:#e2e8f0;--bg-canvas:#fff;--bg-input:#fff;--bg-console:#0a0e18;--bg-hover:#0ea5e90f;--bg-active:#0ea5e91a;--text-primary:#1e293b;--text-secondary:#475569;--text-muted:#94a3b8;--text-muted2:#cbd5e1;--border:#00000014;--border-light:#0000000a;--accent:#0284c7;--accent-dim:#0369a1;--accent-bg:#0284c70f;--accent-hover:#0284c71a;--accent-border:#0284c726;--success:#16a34a;--error:#dc2626;--warning:#d97706;--grid-color:#0000000a;--console-text:#22c55e;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 32px #0000001f}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-ui);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow:hidden}button{font-family:var(--font-ui);transition:var(--transition)}input,select{font-family:var(--font-ui);transition:border-color var(--transition)}input:focus,select:focus{outline:none;box-shadow:0 0 0 2px #38bdf81a;border-color:var(--accent)!important}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--text-muted2);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app{flex-direction:column;height:100vh;display:flex}.toolbar{background:var(--bg-secondary);border-bottom:1px solid var(--border);align-items:center;gap:16px;padding:8px 16px;display:flex}.toolbar-group{gap:4px;display:flex}.toolbar button{background:var(--accent-bg);color:var(--text-primary);border:1px solid var(--accent-border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);padding:6px 14px;font-size:13px}.toolbar button:hover{background:var(--accent-hover)}.toolbar button:disabled{opacity:.3;cursor:not-allowed}.toolbar button:disabled:hover{background:var(--accent-bg)}.toolbar button.active{background:var(--accent);color:#000;border-color:var(--accent)}.main-area{flex:1;display:flex;overflow:hidden}.canvas-container{background:var(--bg-canvas);flex:1;position:relative}.properties-panel{background:linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);border-left:1px solid var(--border);width:250px;padding:16px;transition:width .2s;overflow-y:auto;box-shadow:-2px 0 8px #0000001a}.properties-panel h3{color:var(--accent);margin-bottom:12px;font-size:14px;font-weight:600}.properties-panel h4{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin:16px 0 8px;font-size:12px}.property-group{margin-bottom:8px}.property-group label{color:var(--text-muted);margin-bottom:2px;font-size:11px;display:block}.property-group input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);padding:4px 8px;font-size:13px}.property-group input.invalid{border-color:var(--error)}.read-only{color:var(--text-secondary);font-size:13px}.interface-config{background:var(--bg-input);border-radius:var(--radius-sm);border:1px solid var(--border-light);transition:border-color var(--transition);margin-bottom:8px;padding:8px}.interface-config:hover{border-color:var(--accent-border)}.interface-name{color:var(--accent);margin-bottom:6px;font-size:12px;font-weight:700}.console-panel{background:var(--bg-console);border-top:1px solid var(--border);flex-direction:column;display:flex;overflow:hidden;box-shadow:0 -2px 8px #00000026}.console-header{background:var(--bg-secondary);justify-content:space-between;align-items:center;padding:6px 12px;font-size:12px;display:flex}.console-header button{background:var(--accent-bg);color:var(--text-primary);border:1px solid var(--accent-border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);padding:2px 10px;font-size:11px}.ping-form{background:var(--bg-console);border-bottom:1px solid var(--border-light);gap:8px;padding:8px 12px;display:flex}.ping-form select,.ping-form input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);padding:4px 8px;font-size:13px}.ping-form select{min-width:150px}.ping-form input{flex:1}.ping-form button{background:var(--accent);color:#000;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);border:none;padding:4px 16px;font-size:13px;font-weight:600}.ping-form button:disabled{opacity:.5;cursor:not-allowed}.console-output{font-family:var(--font-mono);flex:1;padding:8px 12px;font-size:13px;overflow-y:auto}.console-line{color:var(--console-text);line-height:1.6}.console-line:empty{height:1.6em}.context-menu{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);z-index:1000;min-width:120px;box-shadow:var(--shadow-md);padding:4px 0;position:fixed}.context-menu-item{cursor:pointer;transition:var(--transition);padding:6px 16px;font-size:13px}.context-menu-item:hover{background:var(--accent-bg)}.toast{background:var(--bg-tertiary);color:var(--text-primary);border-radius:var(--radius-md);z-index:2000;box-shadow:var(--shadow-md);border:1px solid var(--border);padding:10px 20px;font-size:13px;animation:3s fadeInOut;position:fixed;top:60px;right:20px}@keyframes fadeInOut{0%{opacity:0;transform:translateY(-10px)}10%{opacity:1;transform:translateY(0)}80%{opacity:1}to{opacity:0}}.terminal-modal{background:var(--bg-console);border-radius:var(--radius-md);z-index:500;border:1px solid #38bdf826;flex-direction:column;min-width:500px;min-height:300px;display:flex;position:fixed;box-shadow:0 8px 40px #00000080,0 0 1px #38bdf833}.terminal-header{background:linear-gradient(180deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);border-bottom:1px solid 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0;border:none;outline:none;flex:1;font-size:13px}.mode-toggle{background:var(--bg-input);border-radius:var(--radius-sm);gap:2px;padding:2px;display:flex}.mode-toggle button{color:var(--text-muted);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);background:0 0;border:none;padding:3px 10px;font-size:11px}.mode-toggle button.active{background:var(--accent);color:#000}.playback-controls{background:var(--bg-console);border-bottom:1px solid var(--border-light);gap:4px;padding:6px 12px;display:flex}.playback-controls button{background:var(--accent-bg);color:var(--text-primary);border:1px solid var(--accent-border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);padding:4px 12px;font-size:12px}.playback-controls button:hover{background:var(--accent-hover)}.playback-controls button.active{background:var(--accent);color:#000}.event-list{flex:1;font-size:12px;overflow-y:auto}.event-list table{border-collapse:collapse;width:100%}.event-list th{background:var(--bg-secondary);text-align:left;color:var(--text-muted);border-bottom:1px solid var(--border);letter-spacing:.02em;padding:4px 8px;font-size:11px;position:sticky;top:0}.event-list td{border-bottom:1px solid var(--bg-primary);padding:4px 8px}.event-row{cursor:pointer;transition:var(--transition)}.event-row:hover{background:var(--bg-hover)}.event-row.active{background:var(--accent-bg)}.event-row.dropped{color:var(--error);text-decoration:line-through}.packet-detail{background:var(--bg-console);border-top:1px solid var(--border);font-family:var(--font-mono);color:var(--text-secondary);white-space:pre;padding:8px 12px;font-size:12px}.packet-detail .detail-header{color:var(--accent);margin-top:4px;font-weight:700}.filter-bar{background:var(--bg-console);border-bottom:1px solid var(--border-light);gap:4px;padding:6px 12px;display:flex}.filter-btn{background:var(--bg-hover);color:var(--text-muted);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);padding:3px 10px;font-size:11px}.filter-btn:hover{background:var(--bg-hover)}.filter-btn.active{background:var(--accent);color:#000;border-color:var(--accent)}.pdu-inspector{background:var(--bg-console);border-top:1px solid var(--border);font-family:var(--font-mono);padding:8px 12px;font-size:12px}.pdu-layer{border-radius:var(--radius-sm);background:var(--bg-console);margin-bottom:6px;padding:4px 8px}.pdu-layer.l1{border-left:3px solid #0c6}.pdu-layer.l2{border-left:3px solid #48f}.pdu-layer.l3{border-left:3px solid #a6f}.pdu-layer.l4{border-left:3px solid #ff8c00}.pdu-layer-title{color:var(--text-secondary);margin-bottom:2px;font-weight:700}.pdu-layer div{color:var(--text-muted);line-height:1.5}.cable-select{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);margin-left:4px;padding:4px 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16px;display:flex;box-shadow:0 -1px 4px #00000026}.status-bar button{color:var(--text-muted);cursor:pointer;transition:var(--transition);background:0 0;border:none;padding:1px 6px;font-size:11px}.status-bar button:hover{color:var(--text-primary)}.status-bar button.active{color:var(--accent)}.status-separator{background:var(--border);flex-shrink:0;width:1px;height:14px}.status-mode-toggle{background:var(--bg-canvas);border-radius:var(--radius-sm);gap:1px;padding:1px;display:flex}.status-mode-toggle button{border-radius:2px;padding:1px 8px;font-size:10px}.status-mode-toggle button.active{background:var(--accent);color:#000}.status-info{color:var(--text-muted);font-size:11px}.menu-bar{background:var(--bg-secondary);border-bottom:1px solid var(--border);-webkit-user-select:none;user-select:none;z-index:900;letter-spacing:.01em;align-items:stretch;height:30px;font-size:13px;font-weight:500;display:flex;position:relative;box-shadow:0 1px 4px #0003}.menu-item{cursor:pointer;color:var(--text-primary);transition:var(--transition);padding:6px 12px;position:relative}.menu-item:hover,.menu-item.open{background:var(--bg-hover);border-radius:var(--radius-sm)}.menu-dropdown{background:var(--bg-secondary);border:1px solid var(--border);border-radius:0 0 var(--radius-sm) var(--radius-sm);min-width:220px;box-shadow:var(--shadow-md);z-index:1001;padding:4px 0;position:absolute;top:100%;left:0}.menu-dropdown-item{cursor:pointer;color:var(--text-primary);white-space:nowrap;transition:var(--transition);justify-content:space-between;align-items:center;padding:6px 16px;font-size:13px;display:flex}.menu-dropdown-item:hover{background:var(--bg-hover)}.menu-dropdown-item.disabled{opacity:.4;cursor:not-allowed}.menu-dropdown-item.disabled:hover{background:0 0}.menu-dropdown-item .check{text-align:center;width:18px;color:var(--accent);margin-right:4px;display:inline-block}.menu-dropdown-item .shortcut{color:var(--text-muted);font-size:11px;font-family:var(--font-mono);margin-left:24px}.menu-separator{background:var(--border);height:1px;margin:4px 8px}.modal-overlay{z-index:2000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);min-width:400px;max-width:500px;max-height:80vh;box-shadow:var(--shadow-lg);padding:20px;animation:.2s modalSlideIn;overflow-y:auto}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.modal h2{color:var(--accent);margin:0 0 16px;font-size:16px;font-weight:600}.modal-footer{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}.modal-footer button{border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);padding:6px 16px;font-size:13px}.welcome-modal{max-width:480px}.welcome-steps{flex-direction:column;gap:12px;margin:20px 0;display:flex}.welcome-step{background:var(--bg-input);border-radius:var(--radius-md);border:1px solid var(--border-light);align-items:flex-start;gap:12px;padding:10px 12px;display:flex}.welcome-step-num{background:var(--accent);color:#000;border-radius:50%;justify-content:center;align-items:center;width:24px;min-width:24px;height:24px;font-size:12px;font-weight:700;display:flex}.welcome-step div{font-size:13px;line-height:1.4}.welcome-step strong{color:var(--accent)}.welcome-actions{justify-content:center;gap:8px;display:flex}.welcome-btn{border-radius:var(--radius-md);border:1px solid var(--border);background:var(--bg-tertiary);color:var(--text-primary);cursor:pointer;transition:var(--transition);padding:8px 20px;font-size:13px;font-weight:500}.welcome-btn:hover{background:var(--bg-hover);border-color:var(--accent-border)}.welcome-btn.primary{background:var(--accent);color:#000;border-color:var(--accent);font-weight:600}.welcome-btn.primary:hover{opacity:.9}.sample-category{color:var(--accent);margin:12px 0 8px;font-size:13px;font-weight:600}.sample-item{border:1px solid var(--border-light);border-radius:var(--radius-md);transition:all var(--transition);justify-content:space-between;align-items:center;margin-bottom:8px;padding:12px 16px;display:flex}.sample-item:hover{background:var(--bg-hover);border-color:var(--accent-border);transform:translate(4px)}.sample-item button{background:var(--accent);color:#000;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);border:none;padding:3px 12px;font-size:12px}.pref-group{margin-bottom:12px}.pref-group h3{color:var(--text-muted);margin-bottom:8px;font-size:13px}.pref-item{padding:4px 0;font-size:13px}.pref-item 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var(--border);cursor:move;-webkit-user-select:none;user-select:none;border-radius:var(--radius-md) var(--radius-md) 0 0;justify-content:space-between;align-items:center;padding:6px 12px;display:flex}.browser-header span{color:var(--accent);font-size:13px;font-weight:600}.browser-header button{color:var(--text-muted);cursor:pointer;transition:var(--transition);background:0 0;border:none;font-size:16px}.browser-header button:hover{color:var(--error)}.browser-address-bar{background:var(--bg-secondary);border-bottom:1px solid var(--border);gap:4px;padding:6px 12px;display:flex}.browser-address-bar input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);flex:1;padding:4px 8px;font-size:13px}.browser-address-bar button{background:var(--accent);color:#000;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);border:none;padding:4px 12px;font-size:13px}.browser-content{color:#333;border-radius:0 0 var(--radius-md) var(--radius-md);background:#fff;flex:1;min-height:200px;padding:16px;font-family:Arial,sans-serif;font-size:14px;overflow-y:auto}.browser-error{color:var(--error);text-align:center;padding:40px}.device-window{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-lg);z-index:500;width:720px;min-width:650px;height:520px;min-height:450px;box-shadow:var(--shadow-lg), 0 0 0 1px #38bdf80d;resize:both;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);flex-direction:column;display:flex;position:fixed;overflow:hidden}.device-window-header{background:linear-gradient(180deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);border-bottom:1px solid var(--border);cursor:move;-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;padding:6px 12px;display:flex}.device-window-header span{color:var(--accent);font-size:14px;font-weight:600}.device-window-header 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