:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --panel: #ffffff;
  --ink: #17202a;
  --muted: #637083;
  --line: #d9e0ea;
  --blue: #2f6fed;
  --green: #1f8a5b;
  --amber: #b56a16;
  --red: #b43b3b;
  --teal: #167c80;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.45;
}

button,
input,
select,
textarea {
  font: inherit;
}

.app-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(20px, 4vw, 52px) 18px;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 4.5rem);
  line-height: 0.95;
}

h2 {
  margin-bottom: 12px;
  font-size: 1.35rem;
}

h3 {
  margin-bottom: 8px;
  font-size: 1rem;
  overflow-wrap: anywhere;
}

.status-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.status-strip span,
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.tabbar {
  display: flex;
  gap: 6px;
  padding: 12px clamp(20px, 4vw, 52px);
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.tabbar button {
  min-width: 96px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: var(--muted);
  cursor: pointer;
  padding: 8px 12px;
  font-weight: 800;
}

.tabbar button[aria-selected="true"] {
  border-color: var(--blue);
  background: #edf3ff;
  color: var(--blue);
}

.app-shell {
  width: min(1220px, calc(100vw - 32px));
  margin: 24px auto 48px;
}

.view-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 18px;
  align-items: start;
}

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

.story-band {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 18px;
}

.story-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.qwen-status-lines {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
  max-width: 420px;
}

.qwen-status-lines span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid #cfdaea;
  border-radius: 8px;
  background: #f6f8fb;
  color: var(--muted);
  padding: 5px 9px;
  font-size: 0.76rem;
  font-weight: 800;
}

.story-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(260px, 0.8fr);
  gap: 12px;
  align-items: start;
}

.judge-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.judge-card {
  display: grid;
  gap: 6px;
  min-width: 0;
  min-height: 116px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcff;
  padding: 12px;
}

.story-outcome {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 8px;
  min-width: 0;
  min-height: 126px;
  border: 1px solid var(--line);
  border-left-width: 5px;
  border-radius: 8px;
  padding: 12px;
}

.story-outcome.failed {
  border-left-color: var(--red);
  background: #fff7f7;
}

.story-outcome.passed {
  border-left-color: var(--green);
  background: #f4fbf7;
}

.story-score {
  font-size: 1.7rem;
  font-weight: 850;
  line-height: 1;
}

.story-score.compact {
  font-size: 1.35rem;
}

.story-pipeline {
  display: grid;
  gap: 10px;
  align-content: start;
  min-width: 0;
  min-height: 126px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #f8fbfd;
}

.handoff-replay {
  display: grid;
  gap: 14px;
  border: 1px solid #c9d6e6;
  border-radius: 8px;
  background: #ffffff;
  padding: 18px;
}

.replay-primary {
  min-height: 38px;
  border: 1px solid #becce0;
  border-radius: 8px;
  background: #111827;
  color: #ffffff;
  padding: 8px 13px;
  font-weight: 850;
}

.replay-controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.replay-step {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  color: var(--ink);
  padding: 8px;
  text-align: left;
  font-weight: 800;
}

.replay-step span {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #e7edf6;
  color: var(--muted);
  font-size: 0.78rem;
}

.replay-step[aria-selected="true"] {
  border-color: #9eb4d3;
  background: #edf3ff;
}

.replay-step[aria-selected="true"] span {
  background: var(--blue);
  color: #ffffff;
}

.replay-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(170px, 0.24fr);
  gap: 12px;
  min-width: 0;
  border: 1px solid var(--line);
  border-left-width: 5px;
  border-radius: 8px;
  padding: 14px;
}

.replay-panel.failed {
  border-left-color: var(--red);
  background: #fff7f7;
}

.replay-panel.passed {
  border-left-color: var(--green);
  background: #f4fbf7;
}

.replay-panel p {
  margin: 6px 0 0;
  color: var(--muted);
}

.replay-result {
  display: grid;
  gap: 7px;
  align-content: start;
  justify-items: end;
  text-align: right;
}

.replay-evidence {
  grid-column: 1 / -1;
}

.simulator-band {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 18px;
}

.sim-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.sim-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcff;
  padding: 12px;
}

.step-index {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #edf3ff;
  color: var(--blue);
  font-weight: 850;
}

.sim-branches {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.sim-branch {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 8px;
  min-width: 0;
  border: 1px solid var(--line);
  border-left-width: 5px;
  border-radius: 8px;
  padding: 12px;
}

.sim-branch.failed {
  border-left-color: var(--red);
  background: #fff7f7;
}

.sim-branch.passed {
  border-left-color: var(--green);
  background: #f4fbf7;
}

.source-row {
  display: flex;
  flex-wrap: wrap;
  grid-column: 1 / -1;
  gap: 6px;
}

.source-row span {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
  padding: 4px 7px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
}

.sim-reasons {
  margin-bottom: 0;
}

.path-row {
  display: grid;
  gap: 6px;
}

.path-row span {
  display: block;
  border-left: 4px solid var(--blue);
  border-radius: 6px;
  background: #edf3ff;
  padding: 7px 9px;
  font-size: 0.82rem;
  font-weight: 800;
}

.status-gated {
  border-color: #cfdaea;
  color: var(--muted);
  background: #f6f8fb;
}

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

.goal {
  color: var(--muted);
  font-size: 0.95rem;
}

.timeline {
  display: grid;
  gap: 8px;
  max-height: 640px;
  overflow: auto;
  padding-right: 4px;
}

.event-row,
.memory-row,
.pipeline-step,
.variant-row {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
}

.event-row {
  grid-template-columns: 72px minmax(0, 1fr);
}

.event-meta,
.metric-label,
.small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  min-width: 0;
  overflow-wrap: anywhere;
}

.event-text,
.memory-text,
.context-text {
  overflow-wrap: anywhere;
}

.memory-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

.status-active {
  border-color: #b7decf;
  color: var(--green);
  background: #edf8f3;
}

.status-superseded {
  border-color: #f2cfaa;
  color: var(--amber);
  background: #fff7ed;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.metric {
  min-height: 84px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
}

.metric-value {
  display: block;
  margin-top: 6px;
  font-size: 1.45rem;
  font-weight: 850;
  overflow-wrap: anywhere;
}

.compact-grid {
  margin-top: 10px;
}

.compact-grid .metric {
  min-height: 74px;
}

.compact-grid .metric-value {
  font-size: 1rem;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.pipeline-step {
  min-height: 92px;
  border-top: 4px solid var(--blue);
}

.variant-row {
  grid-template-columns: minmax(0, 1fr) 132px;
  align-items: center;
}

.score-bar {
  position: relative;
  height: 10px;
  overflow: hidden;
  border-radius: 8px;
  background: #e8edf5;
}

.score-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
}

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

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.trace-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.proof-card {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
}

.trace-card {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
}

.trace-explorer {
  display: grid;
  gap: 12px;
  margin-top: 14px;
  border: 1px solid #c9d6e6;
  border-radius: 8px;
  background: #f8fbfd;
  padding: 14px;
}

.trace-stage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.trace-stage {
  display: grid;
  gap: 6px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--teal);
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
}

.trace-stage p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.trace-source-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.trace-metrics {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.trace-metrics .metric {
  min-height: 62px;
}

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

.test-list {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.test-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 9px;
  font-size: 0.82rem;
  font-weight: 750;
}

.test-list .passed {
  border-color: #b7decf;
  color: var(--green);
  background: #edf8f3;
}

.test-list .failed {
  border-color: #f0b9b9;
  color: var(--red);
  background: #fff1f1;
}

.diff-block {
  max-height: 260px;
  overflow: auto;
  margin: 0;
  border-radius: 8px;
  background: #17202a;
  color: #f7fafc;
  padding: 12px;
  font-size: 0.78rem;
  line-height: 1.45;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.context-item {
  border-left: 4px solid var(--teal);
  border-radius: 8px;
  background: #f8fbfd;
  padding: 10px 12px;
}

.matrix {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 8px;
  background: #ffffff;
}

.matrix th,
.matrix td {
  border: 1px solid var(--line);
  padding: 8px;
  text-align: right;
}

.matrix th {
  background: #f1f5f9;
  color: var(--muted);
  font-size: 0.76rem;
}

.matrix th:first-child,
.matrix td:first-child {
  text-align: left;
  font-weight: 800;
}

.proof-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.deployment-live {
  display: grid;
  gap: 12px;
  margin: 12px 0;
  padding: 12px;
  border: 1px solid var(--border);
  background: #f8fafc;
}

.deployment-live a {
  color: var(--ink);
  font-weight: 700;
  overflow-wrap: anywhere;
}

@media (max-width: 880px) {
  .app-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .status-strip {
    justify-content: flex-start;
  }

  .tabbar {
    overflow-x: auto;
  }

  .view-grid,
  .metrics-grid,
  .pipeline,
  .proof-grid,
  .trace-grid,
  .trace-stage-grid,
  .trace-source-grid,
  .story-grid,
  .replay-controls,
  .replay-panel,
  .sim-flow,
  .sim-branches,
  .work-grid {
    grid-template-columns: 1fr;
  }

  .variant-row,
  .memory-row,
  .event-row {
    grid-template-columns: 1fr;
  }

  .story-head {
    flex-direction: column;
  }

  .qwen-status-lines {
    justify-content: flex-start;
    max-width: 100%;
  }

  .replay-result {
    justify-items: start;
    text-align: left;
  }
}