:root {
  --bg: #0d1117;
  --bg-alt: #161b22;
  --bg-sel: #1f2733;
  --border: #30363d;
  --fg: #c9d1d9;
  --dim: #6e7681;

  --get: #3fb950;
  --write: #d29922;
  --delete: #f85149;
  --other: #39c5cf;

  --ok: #3fb950;
  --redirect: #39c5cf;
  --client-err: #d29922;
  --server-err: #f85149;

  --json-key: #79c0ff;
  --json-str: #a5d6a4;
  --json-num: #ffa657;
  --json-bool: #d2a8ff;
  --json-null: #8b949e;
  --json-punct: #6e7681;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font: 13px/1.5 ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

#topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; color: #fff; }
.meta { color: var(--dim); }
.spacer { flex: 1; }
.count { color: var(--dim); }
.toolbar-button, #logout button {
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--fg);
  background: var(--bg);
  font: inherit;
  cursor: pointer;
}
.toolbar-button:hover:not(:disabled), #logout button:hover { background: var(--bg-sel); }
.toolbar-button:disabled { cursor: default; opacity: .45; }
.view-switch { display: flex; margin-left: 8px; }
.view-switch button {
  padding: 3px 8px;
  border: 1px solid var(--border);
  color: var(--dim);
  background: var(--bg);
  font: inherit;
  cursor: pointer;
}
.view-switch button:first-child { border-radius: 5px 0 0 5px; }
.view-switch button:last-child { margin-left: -1px; border-radius: 0 5px 5px 0; }
.view-switch button.active { position: relative; color: var(--fg); background: var(--bg-sel); }
.conn { padding: 1px 8px; border-radius: 10px; font-size: 11px; }
.conn-on { background: #14361f; color: var(--ok); }
.conn-off { background: #3a1d1d; color: var(--server-err); }

main {
  display: grid;
  grid-template-columns: minmax(420px, 44%) 1fr;
  height: calc(100% - 41px);
}

#list { overflow-y: auto; border-right: 1px solid var(--border); }
#detail { overflow-y: auto; padding: 12px 16px; }
#detail .empty { color: var(--dim); padding: 24px 8px; }

/* ---- request rows ---- */
.row {
  display: grid;
  grid-template-columns: 48px 58px 40px 64px 78px 1fr;
  gap: 8px;
  align-items: baseline;
  padding: 5px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  white-space: nowrap;
}
.row:hover { background: var(--bg-alt); }
.row.sel { background: var(--bg-sel); }
.row .seq { color: var(--dim); }
.row .method { font-weight: 700; }
.row .dur { color: var(--dim); text-align: right; }
.row .time { color: var(--dim); text-align: right; }
.row .target { overflow: hidden; text-overflow: ellipsis; color: var(--other); }
.row .err { color: var(--server-err); }
.profile-badge {
  display: inline-block;
  margin-right: 7px;
  padding: 0 6px;
  border: 1px solid #394452;
  border-radius: 9px;
  color: #8b9aaa;
  background: #171d25;
  font-size: 11px;
  line-height: 17px;
  vertical-align: 1px;
}

.m-GET { color: var(--get); }
.m-POST, .m-PUT, .m-PATCH { color: var(--write); }
.m-DELETE { color: var(--delete); }
.m-other { color: var(--other); }

.s-2 { color: var(--ok); }
.s-3 { color: var(--redirect); }
.s-4 { color: var(--client-err); }
.s-5 { color: var(--server-err); font-weight: 700; }
.s-pending { color: var(--dim); }

/* ---- conversation list ---- */
.conversation-row {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}
.conversation-row:hover { background: var(--bg-alt); }
.conversation-row.sel { background: var(--bg-sel); }
.conversation-title { overflow: hidden; color: var(--fg); text-overflow: ellipsis; white-space: nowrap; }
.conversation-row-meta { margin-top: 2px; overflow: hidden; color: var(--dim); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.conversation-empty { padding: 24px 12px; color: var(--dim); }

/* ---- detail ---- */
.route-context {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--border);
  color: var(--dim);
  font-size: 11px;
}
.route-context .profile-badge { margin-right: 0; }
.block { margin-bottom: 18px; }
.block h3 {
  margin: 0 0 6px;
  font-size: 12px;
  color: var(--dim);
  font-weight: 600;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.arrow { color: var(--json-bool); }
.headline { font-weight: 700; }
.hdr { white-space: pre-wrap; word-break: break-all; }
.hdr .k { color: var(--dim); }
.bodymeta { color: var(--dim); margin: 6px 0 2px; }

/* ---- response preview viewer ---- */
.body-viewer { margin-top: 6px; }
.viewer-content { position: relative; }
.viewer-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  margin-bottom: 4px;
}
.viewer-toolbar .bodymeta { margin: 0; }
.copy-button { margin-left: 0; }
.viewer-content > .copy-button {
  position: absolute;
  top: 6px;
  right: 8px;
  z-index: 1;
}
.conversation-button { margin-left: 4px; }
.viewer-spacer { flex: 1; }
.preview-badge {
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--other);
  font-size: 11px;
}
.mode-button {
  padding: 3px 8px;
  border: 1px solid var(--border);
  color: var(--dim);
  background: var(--bg);
  font: inherit;
  cursor: pointer;
}
.mode-button:first-of-type { border-radius: 5px 0 0 5px; }
.mode-button:last-of-type { margin-left: -7px; border-radius: 0 5px 5px 0; }
.mode-button.active { color: var(--fg); background: var(--bg-sel); }
.mode-button:disabled { cursor: not-allowed; opacity: .45; }
.preview-warning, .preview-note {
  margin: 4px 0 8px;
  padding: 6px 8px;
  border-left: 3px solid var(--write);
  color: var(--write);
  background: var(--bg-alt);
}
.preview-note { border-color: var(--dim); color: var(--dim); }
.preview-error { border-color: var(--server-err); color: var(--server-err); }
.html-preview {
  display: block;
  width: 100%;
  min-height: 520px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: white;
}
.sse-preview h4 { margin: 8px 0 6px; color: var(--fg); }
.merged-choice { margin-bottom: 10px; }
.choice-meta { margin-bottom: 3px; color: var(--dim); }
.merged-content { white-space: pre-wrap; }
.sse-preview details > summary { cursor: pointer; color: var(--dim); }
.sse-events { margin-top: 10px; }
.sse-event { padding: 5px 0; border-bottom: 1px solid var(--border); }
.sse-event > pre, .sse-event > .json { margin-top: 4px; }

/* ---- conversation timeline ---- */
.conversation-header { margin-bottom: 10px; }
.conversation-header h2 { margin: 0; color: var(--fg); font: 600 15px/1.4 ui-monospace, SFMono-Regular, monospace; }
.conversation-meta { margin-top: 3px; color: var(--dim); font-size: 11px; }
.conversation-strip {
  display: flex;
  gap: 3px;
  height: 12px;
  margin: 8px 0 16px;
  overflow: hidden;
  border-radius: 5px;
  background: var(--bg-alt);
}
.conversation-strip span { min-width: 5px; flex: 1; }
.strip-agent { background: #0aa174; }
.strip-user { background: #8957e5; }
.strip-instruction { background: #d29922; }
.strip-tool_call { background: #3f79bd; }
.strip-tool_result { background: #485568; }
.strip-error { background: #da3633; }
.conversation-timeline { margin: 0 -16px; border-top: 1px solid var(--border); }
.conversation-event { border-bottom: 1px solid var(--border); }
.conversation-event > summary {
  display: grid;
  grid-template-columns: 12px 112px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  min-height: 48px;
  padding: 11px 16px;
  cursor: pointer;
  list-style: none;
}
.conversation-event > summary::-webkit-details-marker { display: none; }
.conversation-event > summary::before { content: "▸"; color: var(--dim); }
.conversation-event[open] > summary::before { content: "▾"; }
.conversation-event > summary:hover { background: var(--bg-alt); }
.event-label {
  display: inline-block;
  max-width: 112px;
  padding: 2px 9px;
  overflow: hidden;
  border-radius: 5px;
  color: white;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.event-agent .event-label { background: #0aa174; }
.event-user .event-label { background: #8957e5; }
.event-instruction .event-label { background: #9e6a03; }
.event-tool_call .event-label { background: #245a9b; color: #9dccff; }
.event-tool_result .event-label { background: #282e38; color: #aab5c4; }
.event-error .event-label { background: #7d2224; color: #ffb3b6; }
.event-preview { overflow: hidden; color: var(--fg); font-size: 14px; text-overflow: ellipsis; white-space: nowrap; }
.conversation-event[open] .event-preview { white-space: normal; }
.event-position { color: var(--dim); white-space: nowrap; }
.event-body { position: relative; padding: 0 16px 14px 138px; }
.event-body pre { max-height: 440px; overflow: auto; }
.source-request {
  margin-top: 6px;
  padding: 3px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--dim);
  background: var(--bg);
  font: inherit;
  cursor: pointer;
}
.source-request:hover { color: var(--fg); background: var(--bg-sel); }
.conversation-usage { margin-top: 12px; }
.conversation-usage > summary { margin-bottom: 5px; color: var(--dim); cursor: pointer; }

@media (max-width: 900px) {
  #topbar .meta { display: none; }
  .view-switch { margin-left: 0; }
  .conversation-event > summary { grid-template-columns: 12px 92px minmax(0, 1fr); }
  .event-position { display: none; }
  .event-body { padding-left: 16px; }
}

pre {
  margin: 0;
  padding: 8px 10px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---- JSON tree ---- */
.json { font-variant-ligatures: none; }
details.node > summary { cursor: pointer; list-style: none; }
details.node > summary::-webkit-details-marker { display: none; }
.tw { color: var(--json-punct); display: inline-block; width: 1em; }
details.node[open] > summary .tw::before { content: "▾"; }
details.node:not([open]) > summary .tw::before { content: "▸"; }
.collapsed-hint { color: var(--dim); }
details.node[open] > summary .collapsed-hint { display: none; }
.indent { display: block; padding-left: 1.4em; }

.jk { color: var(--json-key); }
.js { color: var(--json-str); }
.jn { color: var(--json-num); }
.jb { color: var(--json-bool); }
.ju { color: var(--json-null); }
.jp { color: var(--json-punct); }