:root{color-scheme:light;font-family:Inter,Segoe UI,Arial,sans-serif}body{margin:0;background:#f5f7fb;color:#1f2937}.app-shell{min-height:100vh}.center-panel{min-height:100vh;display:grid;place-content:center;gap:12px;text-align:center}.app-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #d1d5db;background:#fff}.app-header h1{margin:0;font-size:20px}.app-header p{margin:4px 0 0;color:#6b7280;font-size:13px}.header-actions{display:flex;align-items:center;gap:10px}.main-grid{display:grid;gap:16px;grid-template-columns:360px 1fr;padding:16px}.panel{background:#fff;border:1px solid #d1d5db;border-radius:8px;padding:12px;min-height:80vh}.panel h2{margin-top:0}.session-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.filters-grid{display:grid;grid-template-columns:1fr 140px 120px;gap:8px;margin-bottom:10px}.filters-grid input,.filters-grid select{border:1px solid #d1d5db;border-radius:6px;padding:6px 8px;font:inherit}.session-list button{width:100%;border:1px solid #e5e7eb;border-radius:6px;background:#fff;padding:8px;text-align:left;cursor:pointer}.session-list button.selected{border-color:#2563eb;background:#eff6ff}.session-row-top{display:flex;justify-content:space-between;font-size:13px;font-weight:600}.session-row-sub{margin-top:4px;color:#6b7280;font-size:12px}.events-list{display:grid;gap:10px}.event-card{border:1px solid #e5e7eb;border-radius:6px;padding:8px;background:#fafafa}.event-meta{display:flex;gap:12px;flex-wrap:wrap;color:#4b5563;font-size:12px;margin-bottom:8px}pre{margin:0;padding:8px;background:#111827;color:#e5e7eb;border-radius:6px;overflow:auto;max-height:320px;font-size:12px}button{border:1px solid #d1d5db;border-radius:6px;background:#fff;padding:6px 10px}.error{color:#b91c1c}.muted{color:#6b7280;font-size:14px;margin:8px 0 12px}.panel-trace{max-height:calc(100vh - 120px);overflow-y:auto}.session-line{font-size:13px;margin:0 0 10px}.trace-heading-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.trace-heading-row .session-line{margin:0}.debug-export-btn{white-space:nowrap}.session-summary-card{border:1px solid #e5e7eb;border-radius:8px;padding:12px 14px;margin-bottom:16px;background:linear-gradient(180deg,#f8fafc,#fff)}.session-summary-card h3{margin:0 0 10px;font-size:15px}.summary-table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:13px}.summary-table th{text-align:left;font-weight:600;color:#64748b;font-size:12px;padding:6px 10px 6px 0;vertical-align:top;width:12%;white-space:nowrap}.summary-table td{padding:6px 8px 6px 0;vertical-align:top;word-break:break-word;width:38%}.summary-table-spacer{border:none;padding:0}.timeline{display:flex;flex-direction:column;gap:0;border-left:3px solid #e2e8f0;margin-left:10px;padding-left:4px}.timeline-item{position:relative;padding-left:12px;margin-bottom:4px}.timeline-item:before{content:"";position:absolute;left:-17px;top:10px;width:10px;height:10px;border-radius:50%;background:#2563eb;border:2px solid #fff;box-shadow:0 0 0 1px #cbd5e1}.timeline-rail{display:none}.timeline-card{border:1px solid #e5e7eb;border-radius:8px;padding:10px 12px;margin-bottom:14px;background:#fff}.timeline-card-header{margin-bottom:10px}.timeline-title{font-weight:600;font-size:14px;color:#0f172a}.timeline-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px;font-size:12px;color:#64748b}.pill{display:inline-block;padding:2px 8px;border-radius:999px;background:#e0e7ff;color:#3730a3;font-size:11px;font-weight:600}.pill-http{background:#dcfce7;color:#166534}.pill-http-warn{background:#fef3c7;color:#92400e}.pill-http-error{background:#fee2e2;color:#991b1b}.payload-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px;align-items:stretch}@media (max-width: 1100px){.payload-split{grid-template-columns:1fr}}.payload-pane{min-width:0;display:flex;flex-direction:column}.payload-pane h4{margin:0 0 6px;font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:#64748b;flex-shrink:0}.payload-pane pre{flex:1 1 auto;min-height:100px;max-height:320px}