:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel-soft: #f9fafb;
  --line: #d8dde5;
  --text: #14171f;
  --muted: #697182;
  --agent: #2f6fed;
  --v2: #13946f;
  --risk: #d64b4b;
  --shadow: 0 18px 50px rgba(27, 35, 52, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  height: 100vh;
}

.sidebar {
  background: #eef1f5;
  border-right: 1px solid var(--line);
  padding: 18px;
  overflow: auto;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 18px;
}

.mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, #2f6fed, #14a37f);
}

h1 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0;
}

p {
  margin: 0;
}

.brand p,
.meta,
.summary,
.turn-meta,
.tool-row,
.flags {
  color: var(--muted);
}

.filters {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

label span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 5px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 7px;
  padding: 9px 10px;
  color: var(--text);
  font: inherit;
}

.summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin: 14px 0;
}

.summary-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.summary-card strong {
  display: block;
  font-size: 18px;
  color: var(--text);
}

.conversation-list {
  display: grid;
  gap: 8px;
}

.conv-card {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 11px;
  cursor: pointer;
}

.conv-card.active {
  border-color: var(--agent);
  box-shadow: 0 0 0 2px rgba(47, 111, 237, 0.12);
}

.conv-card h2 {
  margin: 0 0 4px;
  font-size: 13px;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.conv-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.conv-badges {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 2px 7px;
  font-size: 12px;
  background: var(--panel-soft);
  white-space: nowrap;
}

.badge.risk {
  color: #9d2727;
  border-color: rgba(214, 75, 75, 0.35);
  background: #fff1f1;
}

.badge.marked {
  color: #6b4c00;
  border-color: rgba(189, 137, 0, 0.36);
  background: #fff7db;
}

.detail {
  padding: 24px 32px;
  overflow: auto;
}

.detail-header {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.detail-header h2 {
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: 0;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.detail-grid div {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.detail-grid span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.detail-grid strong {
  display: block;
  margin-top: 3px;
}

.legend {
  display: flex;
  gap: 16px;
  align-items: center;
  margin: 18px 0;
  color: var(--muted);
}

.dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  margin-right: 6px;
}

.dot.agent {
  background: var(--agent);
}

.dot.v2 {
  background: var(--v2);
}

.dot.risk {
  background: var(--risk);
}

.turns {
  display: grid;
  gap: 14px;
}

.turn {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.turn-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  background: var(--panel-soft);
  border-bottom: 1px solid var(--line);
}

.user-text {
  font-weight: 650;
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.lane {
  padding: 16px;
  min-width: 0;
}

.lane + .lane {
  border-left: 1px solid var(--line);
}

.lane h3 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0;
}

.timing-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: -2px 0 10px;
}

.timing-pills:empty {
  display: none;
}

.time-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  padding: 3px 8px;
  font-size: 12px;
  line-height: 1.2;
  white-space: nowrap;
}

.time-pill b {
  color: var(--text);
  font-weight: 650;
}

.annotation-panel {
  margin-top: 6px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  padding: 0;
}

.annotation-panel.marked {
  border-color: rgba(189, 137, 0, 0.42);
  background: #fffaf0;
  border: 1px solid rgba(189, 137, 0, 0.42);
  padding: 8px;
}

.annotation-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 0;
}

.annotation-panel.marked .annotation-row {
  margin-bottom: 8px;
}

.mark-control {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.mark-control input {
  width: 16px;
  height: 16px;
  margin: 0;
  padding: 0;
}

.annotation-save-state {
  display: none;
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

.annotation-panel.marked .annotation-save-state:not(:empty) {
  display: inline;
}

.annotation-panel textarea {
  display: none;
  min-height: 54px;
  resize: vertical;
  background: var(--panel-soft);
}

.annotation-panel.marked textarea {
  display: block;
}

.state-summary {
  display: grid;
  gap: 8px;
  margin-top: 10px;
  border: 1px solid rgba(19, 148, 111, 0.22);
  border-radius: 8px;
  background: #f5fbf8;
  padding: 10px;
}

.state-summary-block {
  display: grid;
  gap: 6px;
}

.state-summary-title {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

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

.state-chip {
  display: inline-flex;
  max-width: 100%;
  align-items: baseline;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  padding: 3px 8px;
  font-size: 12px;
  line-height: 1.25;
}

.state-summary-block.new .state-chip {
  border-color: rgba(19, 148, 111, 0.36);
  background: #ecfbf5;
}

.state-chip b {
  color: var(--text);
  font-weight: 700;
  white-space: nowrap;
}

.state-chip span {
  overflow-wrap: anywhere;
}

.state-empty {
  color: var(--muted);
  font-size: 12px;
}

.bubble {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  min-height: 78px;
  background: var(--panel-soft);
  white-space: pre-wrap;
}

.agent-lane .bubble {
  border-color: rgba(47, 111, 237, 0.28);
}

.v2-lane .bubble {
  border-color: rgba(19, 148, 111, 0.3);
}

.tool-list,
.state-box {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

details {
  margin-top: 10px;
}

summary {
  cursor: pointer;
  color: var(--muted);
}

pre {
  overflow: auto;
  max-height: 260px;
  background: #111827;
  color: #e5e7eb;
  border-radius: 8px;
  padding: 12px;
  font-size: 12px;
}

.flags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

@media (max-width: 1080px) {
  .shell {
    grid-template-columns: 1fr;
    height: auto;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .compare,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .lane + .lane {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}