:root {
  --c-bg: #020617;
  --c-bg-2: #0f172a80;
  --c-panel: #0b1226;
  --c-border: #1e293b99;
  --c-fg: #e2e8f0;
  --c-fg-dim: #94a3b8;
  --c-fg-mute: #64748b;
  --c-fg-faint: #475569;
  --c-accent: #6366f1;
  --c-accent-soft: #6366f133;
  --c-accent-border: #6366f180;
  --c-good: #34d399;
  --c-bad: #f87171;
  --c-warn: #fbbf24;
  --c-cyan: #22d3ee;
  --c-violet: #a78bfa;
  --c-pink: #f472b6;
  --chart-grid: #1e293b;
  --chart-tick: #64748b;
  font-size: 14px;
}

[data-theme="light"] {
  --c-bg: #f8fafc;
  --c-bg-2: #ffffff;
  --c-panel: #ffffff;
  --c-border: #e2e8f0;
  --c-fg: #0f172a;
  --c-fg-dim: #475569;
  --c-fg-mute: #64748b;
  --c-fg-faint: #94a3b8;
  --c-accent: #4f46e5;
  --c-accent-soft: #6366f122;
  --c-accent-border: #6366f1;
  --chart-grid: #e2e8f0;
  --chart-tick: #64748b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--c-bg);
  color: var(--c-fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  height: 100vh;
}

a { color: inherit; }
code, pre, .mono { font-family: ui-monospace, Menlo, "JetBrains Mono", monospace; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb { background: var(--c-fg-faint); border-radius: 3px; }
::-webkit-scrollbar-track { background: transparent; }

.layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  width: 280px;
  flex-shrink: 0;
  border-right: 1px solid var(--c-border);
  background: linear-gradient(180deg, #0a1226 0%, var(--c-bg) 100%);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
[data-theme="light"] .sidebar { background: var(--c-bg-2); }

.sidebar-logo {
  padding: 16px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--c-accent);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-family: ui-monospace, monospace; font-size: 12px;
}
.logo-title { font-size: 13px; font-weight: 600; }
.logo-sub { font-size: 10px; color: var(--c-fg-mute); }

.nav { padding: 8px; display: flex; flex-direction: column; gap: 2px; border-bottom: 1px solid var(--c-border); }
.nav-item {
  background: transparent;
  border: 1px solid transparent;
  color: var(--c-fg-dim);
  padding: 7px 10px;
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-item:hover { background: #1e293b40; color: var(--c-fg); }
.nav-item.active { background: var(--c-accent-soft); border-color: var(--c-accent-border); color: #c7d2fe; }
[data-theme="light"] .nav-item.active { color: var(--c-accent); }

.sidebar-section { padding: 12px 8px 8px; flex: 1; overflow: hidden; display: flex; flex-direction: column; }
.section-label {
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--c-fg-mute);
  padding: 0 8px 6px;
  font-weight: 600;
}
.filter-input {
  width: 100%;
  background: var(--c-bg-2);
  color: var(--c-fg);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  outline: none;
  margin-bottom: 6px;
}
.filter-input:focus { border-color: var(--c-accent); }

.job-list { flex: 1; overflow-y: auto; padding-right: 4px; }
.job-row {
  display: flex;
  align-items: stretch;
  gap: 6px;
  margin-bottom: 2px;
}
.job-main {
  flex: 1;
  min-width: 0;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--c-fg-dim);
  padding: 7px 10px;
  border-radius: 7px;
  cursor: pointer;
  font-size: 11.5px;
  line-height: 1.35;
}
.job-main:hover { background: #1e293b40; color: var(--c-fg); }
.job-row.active .job-main { background: var(--c-accent-soft); border-color: var(--c-accent-border); color: #c7d2fe; }
.job-row .job-name { display: block; font-family: ui-monospace, monospace; font-size: 11px; word-break: break-all; }
.job-row .job-meta { display: flex; gap: 6px; margin-top: 4px; flex-wrap: wrap; }
.job-meta .pill { font-size: 9.5px; padding: 1px 6px; }
.job-row.compare-on .job-main { box-shadow: inset 3px 0 0 var(--c-accent); }
.compare-toggle {
  width: 32px;
  flex-shrink: 0;
  border-radius: 7px;
  border: 1px solid var(--c-border);
  background: transparent;
  color: var(--c-fg-dim);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
}
.compare-toggle:hover { color: var(--c-fg); border-color: var(--c-accent-border); }
.compare-toggle.on { background: var(--c-accent-soft); color: #c7d2fe; border-color: var(--c-accent-border); }
[data-theme="light"] .compare-toggle.on { color: var(--c-accent); }

.sidebar-footer {
  padding: 10px 12px;
  border-top: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.row { display: flex; align-items: center; justify-content: space-between; }
.muted { color: var(--c-fg-mute); }
.small { font-size: 11px; }
.compare-help { line-height: 1.3; }
.badge { background: var(--c-accent-soft); color: #c7d2fe; border-radius: 999px; padding: 1px 8px; font-size: 11px; }
[data-theme="light"] .badge { color: var(--c-accent); }

.btn-mini {
  background: var(--c-accent);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 11px;
  cursor: pointer;
}
.btn-mini.ghost {
  background: transparent;
  color: var(--c-fg-dim);
  border: 1px solid var(--c-border);
}
.btn-mini:hover { filter: brightness(1.1); }
.btn-mini.ghost:hover { color: var(--c-fg); }

.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.topbar {
  height: 48px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--c-border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--c-bg);
}
.crumbs { font-size: 13px; color: var(--c-fg-dim); display: flex; align-items: center; gap: 6px; }
.crumbs .sep { color: var(--c-fg-faint); }
.crumb-link {
  background: transparent;
  border: none;
  color: inherit;
  cursor: pointer;
  font: inherit;
  padding: 0;
}
.crumb-link:hover { color: var(--c-fg); }
.crumbs .here { color: var(--c-fg); font-family: ui-monospace, monospace; font-size: 12px; }

.top-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  color: var(--c-fg-dim);
  cursor: pointer;
}
.icon-btn:hover { color: var(--c-fg); border-color: var(--c-accent); }

.content { flex: 1; overflow-y: auto; padding: 20px; }

/* common widgets */
.card {
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 16px;
}
.card-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-fg-mute);
  margin: 0 0 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-title .hint { text-transform: none; letter-spacing: 0; font-weight: 400; color: var(--c-fg-faint); font-size: 11px; }

.grid { display: grid; gap: 14px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1100px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 700px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.metric { display: flex; flex-direction: column; gap: 4px; }
.metric .v { font-size: 22px; font-weight: 600; font-family: ui-monospace, monospace; color: var(--c-fg); }
.metric .v.good { color: var(--c-good); }
.metric .v.bad { color: var(--c-bad); }
.metric .l { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--c-fg-mute); font-weight: 600; }

table.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
table.tbl th, table.tbl td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  vertical-align: top;
}
table.tbl th {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-fg-mute);
  font-weight: 600;
  background: #1e293b22;
}
[data-theme="light"] table.tbl th { background: #f1f5f9; }
table.tbl td.mono { font-family: ui-monospace, monospace; font-size: 11.5px; }
table.tbl tr:hover { background: #1e293b22; }
[data-theme="light"] table.tbl tr:hover { background: #f1f5f9; }
table.tbl td.num { text-align: right; font-variant-numeric: tabular-nums; font-family: ui-monospace, monospace; }

.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10.5px;
  background: #1e293b80;
  color: var(--c-fg-dim);
  border: 1px solid var(--c-border);
}
.pill.good { background: #10b98122; color: var(--c-good); border-color: #10b98155; }
.pill.bad { background: #ef444422; color: var(--c-bad); border-color: #ef444455; }
.pill.warn { background: #fbbf2422; color: var(--c-warn); border-color: #fbbf2455; }
.pill.accent { background: var(--c-accent-soft); color: #c7d2fe; border-color: var(--c-accent-border); }
[data-theme="light"] .pill.accent { color: var(--c-accent); }

.bar-chart .bar { display: grid; grid-template-columns: 140px 1fr 70px; gap: 8px; align-items: center; padding: 5px 0; font-size: 12px; }
.bar-chart .bar .label { color: var(--c-fg-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-chart .bar .track { background: #1e293b66; border-radius: 4px; height: 10px; overflow: hidden; }
[data-theme="light"] .bar-chart .bar .track { background: #e2e8f0; }
.bar-chart .bar .fill { height: 100%; background: var(--c-accent); border-radius: 4px; }
.bar-chart .bar .num { text-align: right; color: var(--c-fg); font-family: ui-monospace, monospace; font-size: 11.5px; }
.bar-chart.split .bar { grid-template-columns: 140px 1fr 1fr 100px; }
.bar-chart.split .track { background: #1e293b66; position: relative; height: 14px; border-radius: 4px; }
.bar-chart.split .fill { height: 100%; }
.bar-chart.split .fill.left { float: right; background: var(--c-bad); }
.bar-chart.split .fill.right { float: left; background: var(--c-good); }
[data-theme="light"] .bar-chart.split .track { background: #e2e8f0; }

canvas.chart { width: 100% !important; height: 240px !important; }

.toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar select, .toolbar input {
  background: var(--c-bg-2);
  color: var(--c-fg);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  outline: none;
}
.toolbar label { font-size: 11px; color: var(--c-fg-mute); text-transform: uppercase; letter-spacing: 0.05em; }

.empty { color: var(--c-fg-mute); padding: 40px; text-align: center; font-size: 13px; }

/* trajectory step viewer */
.traj-layout { display: grid; grid-template-columns: 280px 1fr; gap: 14px; min-height: 600px; }
@media (max-width: 900px) { .traj-layout { grid-template-columns: 1fr; } }
.step-list { max-height: 75vh; overflow-y: auto; }
.step-row {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 11.5px;
  cursor: pointer;
  border: 1px solid transparent;
  margin-bottom: 2px;
  align-items: start;
}
.step-row .id { color: var(--c-fg-mute); font-family: ui-monospace, monospace; padding-top: 2px; }
.step-row .step-row-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.step-row .desc {
  color: var(--c-fg-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: ui-monospace, monospace;
  font-size: 10.5px;
}
.step-row.active { background: var(--c-accent-soft); border-color: var(--c-accent-border); }
.step-row:hover { background: #1e293b40; }
[data-theme="light"] .step-row:hover { background: #f1f5f9; }

.step-badge {
  font-size: 9.5px;
  padding: 1px 6px;
  border-radius: 999px;
  align-self: flex-start;
  background: #1e293b80;
  color: var(--c-fg-dim);
  border: 1px solid var(--c-border);
  font-family: ui-monospace, monospace;
  text-transform: lowercase;
  letter-spacing: 0.02em;
}
.step-badge.badge-tool { background: #a78bfa22; color: var(--c-violet); border-color: #a78bfa55; }
.step-badge.badge-system { background: #64748b22; color: var(--c-fg-mute); border-color: #64748b55; }
.step-badge.badge-user { background: #22d3ee22; color: var(--c-cyan); border-color: #22d3ee55; }
.step-badge.badge-agent { background: #6366f122; color: #c7d2fe; border-color: #6366f155; }
[data-theme="light"] .step-badge.badge-agent { color: var(--c-accent); }

.step-detail { background: var(--c-panel); border: 1px solid var(--c-border); border-radius: 10px; padding: 16px; max-height: 75vh; overflow-y: auto; }
.step-detail h3 { font-size: 12px; margin: 14px 0 8px; color: var(--c-fg-mute); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }
.step-detail h3:first-child { margin-top: 0; }
.step-detail .src-header { display: flex; gap: 8px; align-items: center; margin-bottom: 10px; flex-wrap: wrap; }
.step-detail pre {
  background: var(--c-bg-2);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  padding: 10px;
  font-size: 11.5px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--c-fg);
  margin: 0;
  font-family: ui-monospace, Menlo, monospace;
  max-height: 500px;
  overflow-y: auto;
}
.step-detail .tool-call {
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 10px 12px;
  background: var(--c-bg-2);
  margin-bottom: 8px;
}
.step-detail .tool-call .tool-head {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--c-border);
}
.step-detail .tool-call .tname {
  color: var(--c-violet);
  font-family: ui-monospace, monospace;
  font-size: 12px;
  font-weight: 600;
  background: #a78bfa22;
  padding: 2px 8px;
  border-radius: 4px;
}

.arg-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 6px 4px 0;
  padding: 3px 8px;
  background: #1e293b40;
  border: 1px solid var(--c-border);
  border-radius: 4px;
  font-size: 11px;
  vertical-align: middle;
}
.arg-pill .arg-key { color: var(--c-fg-mute); font-weight: 600; }
.arg-pill .arg-val { color: var(--c-fg); }
.arg-block { margin-bottom: 6px; }
.arg-block .arg-key {
  font-size: 10.5px;
  color: var(--c-fg-mute);
  font-family: ui-monospace, monospace;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
  font-weight: 600;
}
.arg-block.shell pre { background: #0c1120; color: #e2e8f0; border-color: #1e293b; }
[data-theme="light"] .arg-block.shell pre { background: #1e293b; color: #f8fafc; }
.arg-block.diff-old pre { background: #ef444411; border-color: #ef444433; color: var(--c-bad); }
.arg-block.diff-new pre { background: #10b98111; border-color: #10b98133; color: var(--c-good); }

.step-detail .obs-block {
  border: 1px solid #10b98155;
  border-radius: 6px;
  padding: 10px;
  background: #10b98111;
  margin-bottom: 8px;
}
.step-detail .obs-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.kv { display: grid; grid-template-columns: 200px 1fr; gap: 6px 12px; font-size: 12px; }
.kv .k { color: var(--c-fg-mute); }
.kv .v { color: var(--c-fg); font-family: ui-monospace, monospace; word-break: break-all; }

.chip-row { display: flex; gap: 6px; flex-wrap: wrap; }

.section-h { font-size: 14px; margin: 0 0 10px; font-weight: 600; }

.muted-card { background: #0f172a40; padding: 10px 12px; border-radius: 6px; border: 1px dashed var(--c-border); color: var(--c-fg-mute); font-size: 12px; }

.scroll-x { overflow-x: auto; }

.diff-add { color: var(--c-good); }
.diff-del { color: var(--c-bad); }
.diff-hunk { color: var(--c-cyan); }

pre.code-block {
  background: var(--c-bg-2);
  border: 1px solid var(--c-border);
  border-radius: 6px;
  padding: 10px;
  font-size: 11.5px;
  overflow-x: auto;
  white-space: pre;
  font-family: ui-monospace, monospace;
}

/* ----- trajectory turn-card layout (replaces step-list/step-detail) ----- */
.turns-list { display: flex; flex-direction: column; gap: 10px; }

.turn-card {
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  overflow: hidden;
}
.turn-card.open { border-color: #6366f155; }

.turn-head {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  background: transparent;
  border: 0;
  text-align: left;
  padding: 10px 14px;
  cursor: pointer;
  color: var(--c-fg);
  font-size: 12px;
}
.turn-head:hover { background: #1e293b30; }
[data-theme="light"] .turn-head:hover { background: #f1f5f9; }
.turn-chev { color: var(--c-fg-mute); font-size: 11px; width: 12px; }
.turn-num { font-weight: 600; color: var(--c-fg); }
.turn-tools {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  font-size: 10.5px;
  color: var(--c-warn);
}
.turn-tools-icon { color: var(--c-warn); margin-right: 2px; }
.turn-tool-chip {
  background: #fbbf2415;
  border: 1px solid #fbbf2455;
  color: #fde68a;
  padding: 1px 7px;
  border-radius: 999px;
  font-family: ui-monospace, monospace;
  font-size: 10px;
}
[data-theme="light"] .turn-tool-chip { color: #b45309; background: #fef3c7; }
.turn-spacer { flex: 1; }

.turn-body {
  padding: 0 14px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--c-border);
}

.block-thought,
.block-action,
.block-observation {
  border-radius: 8px;
  border: 1px solid;
  padding: 10px 12px;
}
.block-thought { background: #3b82f60a; border-color: #3b82f655; }
.block-action { background: #f59e0b0a; border-color: #f59e0b55; }
.block-observation { background: #10b9810a; border-color: #10b98155; }

.block-head {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.block-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 700;
  color: #60a5fa; /* thought blue */
}
.block-label.action { color: #fbbf24; }
.block-label.observation { color: #34d399; }
.block-tool-name {
  font-family: ui-monospace, monospace;
  font-size: 11px;
  color: #fcd34d;
  background: #fbbf2422;
  padding: 1px 7px;
  border-radius: 4px;
}
[data-theme="light"] .block-tool-name { color: #92400e; background: #fef3c7; }

.block-pre {
  background: #0c1120;
  color: #e2e8f0;
  border: 1px solid #1e293b;
  border-radius: 6px;
  padding: 10px;
  font-size: 11.5px;
  font-family: ui-monospace, Menlo, monospace;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
  max-height: 360px;
  overflow-y: auto;
}
[data-theme="light"] .block-pre { background: #0f172a; color: #f8fafc; border-color: #1e293b; }
.block-pre.obs { color: #cbd5e1; }
[data-theme="light"] .block-pre.obs { color: #e2e8f0; }

.tool-body { display: flex; flex-direction: column; gap: 6px; }
.arg-meta-row { display: flex; gap: 6px; flex-wrap: wrap; }

/* preface (system prompt / user task) */
.preface-card {
  border: 1px solid var(--c-border);
  border-radius: 10px;
  background: var(--c-panel);
  margin-bottom: 8px;
  overflow: hidden;
}
.preface-card > summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 14px;
  display: flex;
  gap: 10px;
  align-items: center;
}
.preface-card > summary::-webkit-details-marker { display: none; }
.preface-card[open] > summary { border-bottom: 1px solid var(--c-border); }
.preface-system { border-color: #a78bfa55; }
.preface-user { border-color: #22d3ee55; }
.preface-pre {
  margin: 0;
  padding: 14px;
  background: #0c1120;
  color: #cbd5e1;
  font-size: 11.5px;
  font-family: ui-monospace, monospace;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 400px;
  overflow-y: auto;
}
[data-theme="light"] .preface-pre { background: #0f172a; color: #f8fafc; }