:root{--bg-primary: #000000;--bg-secondary: #0a0a0a;--bg-tertiary: #141414;--bg-elevated: #1a1a1a;--bg-hover: #222222;--bg-active: #2a2a2a;--border-subtle: #262626;--border-muted: #333333;--border-active: #555555;--text-primary: #ededed;--text-secondary: #a1a1a1;--text-muted: #666666;--text-inverse: #000000;--accent-blue: #0070f3;--accent-blue-hover: #0060df;--accent-cyan: #50e3c2;--accent-green: #10b981;--accent-red: #ef4444;--accent-purple: #7928ca;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Geist", "Inter", sans-serif;--font-mono: "GeistMono", "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace}html.light{--bg-primary: #ffffff;--bg-secondary: #fbfbfb;--bg-tertiary: #f4f4f5;--bg-elevated: #ffffff;--bg-hover: #f0f0f2;--bg-active: #e4e4e7;--border-subtle: #e4e4e7;--border-muted: #d4d4d8;--border-active: #a1a1aa;--text-primary: #09090b;--text-secondary: #52525b;--text-muted: #71717a;--text-inverse: #ffffff}html.light .navbar{background-color:#ffffffd9}html.light .btn-primary{background-color:#09090b;color:#fff;border-color:#09090b}html.light .btn-primary:hover{background-color:#27272a;border-color:#27272a}html.light .line-numbers{background-color:#f4f4f5}html.light .code-editor{background-color:#fff;color:#09090b}html.light .modal::backdrop{background:#0006}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;overflow:hidden;-webkit-font-smoothing:antialiased}body.resizing-h{cursor:col-resize!important;user-select:none!important}body.resizing-v{cursor:row-resize!important;user-select:none!important}.navbar{height:52px;border-bottom:1px solid var(--border-subtle);background-color:#000000d9;backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:space-between;padding:0 16px;z-index:50;gap:16px}.navbar-left,.navbar-center,.navbar-right{display:flex;align-items:center;gap:10px}.logo{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px;letter-spacing:-.02em}.badge{font-size:11px;font-weight:500;background-color:var(--bg-hover);border:1px solid var(--border-subtle);color:var(--text-secondary);padding:2px 6px;border-radius:9999px;font-family:var(--font-mono)}.connection-status{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-secondary);padding:3px 8px;border-radius:9999px;background-color:var(--bg-tertiary);border:1px solid var(--border-subtle)}.status-dot{width:7px;height:7px;border-radius:50%;background-color:#f59e0b}.connection-status.connected .status-dot{background-color:var(--accent-green);box-shadow:0 0 8px #10b98180}.connection-status.error .status-dot{background-color:var(--accent-red)}.session-selector-bar{display:flex;align-items:center;gap:6px;background-color:var(--bg-secondary);border:1px solid var(--border-subtle);padding:2px 6px 2px 10px;border-radius:var(--radius-md)}.session-label{font-size:12px;color:var(--text-muted)}.session-input{background:transparent;border:none;color:var(--text-primary);font-size:13px;font-family:var(--font-mono);outline:none;width:140px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:13px;font-weight:500;padding:6px 12px;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all .15s ease;user-select:none;white-space:nowrap}.btn svg{flex-shrink:0}.btn-sm{padding:4px 10px;font-size:12px;height:28px}.btn-xs{padding:2px 8px;font-size:11px;height:24px}.btn-primary{background-color:#fff;color:#000;border-color:#fff}.btn-primary:hover{background-color:#e5e5e5;border-color:#e5e5e5}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-subtle)}.btn-secondary:hover{background-color:var(--bg-hover);border-color:var(--border-muted)}.btn-ghost{background-color:transparent;color:var(--text-secondary);border-color:transparent}.btn-ghost:hover:not(:disabled){background-color:var(--bg-hover);color:var(--text-primary)}.github-link{text-decoration:none;color:var(--text-secondary)}.github-link:hover{background-color:var(--bg-hover);color:var(--text-primary)}.btn-ghost:disabled{opacity:.35;cursor:not-allowed}.btn-danger-ghost{background-color:transparent;color:var(--accent-red);border-color:transparent}.btn-danger-ghost:hover:not(:disabled){background-color:#ef44441f}.icon-btn,.icon-btn-sm{background:transparent;border:none;color:var(--text-secondary);padding:5px;border-radius:var(--radius-sm);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:color 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