:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f2f4f7;
  color: #17202a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
}

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

.hidden {
  display: none !important;
}

.landing {
  min-height: 100vh;
  display: grid;
  place-items: start center;
  padding: 32px;
  background: #f2f4f7;
}

.landing section {
  width: min(1180px, 100%);
}

.landing h1 {
  max-width: none;
  font-size: 48px;
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.route-card,
.subnav a {
  text-decoration: none;
  color: inherit;
}

.route-card {
  display: grid;
  gap: 8px;
  min-height: 178px;
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 18px;
  background: #ffffff;
}

.route-card:hover {
  border-color: #7d92a5;
}

.route-card span,
.route-card small {
  color: #526170;
}

.route-card span {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.route-card strong {
  font-size: 24px;
}

.route-card small {
  line-height: 1.45;
}

.evidence-panel,
.evidence-card {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  background: #ffffff;
}

.evidence-panel {
  margin-top: 24px;
  padding: 20px;
}

.section-head h2 {
  font-size: 30px;
}

.evidence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.evidence-actions a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  border: 1px solid #164f73;
  border-radius: 8px;
  padding: 9px 12px;
  background: #164f73;
  color: #ffffff;
  text-decoration: none;
  font-weight: 800;
}

.run-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  overflow: hidden;
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  background: #ffffff;
}

.run-table th,
.run-table td {
  padding: 11px 12px;
  border-bottom: 1px solid #edf1f4;
  text-align: left;
  vertical-align: top;
}

.run-table th {
  color: #3d6f8f;
  font-size: 12px;
  text-transform: uppercase;
}

.run-table td:first-child {
  min-width: 190px;
  font-weight: 800;
  color: #1b2c38;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.evidence-card {
  padding: 18px;
}

.evidence-card h2 {
  font-size: 22px;
}

.evidence-card p {
  margin: 10px 0 0;
  color: #526170;
  line-height: 1.5;
}

.evidence-card code {
  color: #164f73;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.subnav a {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 7px 10px;
  color: #526170;
  font-size: 13px;
  font-weight: 800;
}

.subnav a.active {
  border-color: #164f73;
  background: #e9f4fa;
  color: #164f73;
}

.shell {
  display: grid;
  grid-template-columns: minmax(360px, 440px) minmax(0, 1fr);
  min-height: 100vh;
}

.panel {
  background: #ffffff;
  border-right: 1px solid #d9e0e8;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  overflow: auto;
  max-height: 100vh;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  color: #3d6f8f;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.05;
}

h1 {
  max-width: 12ch;
  font-size: 38px;
}

h2 {
  font-size: 22px;
}

.intro {
  margin: 12px 0 0;
  color: #526170;
  line-height: 1.5;
}

label {
  font-size: 13px;
  font-weight: 800;
  color: #25313d;
}

.preset-row,
.tab-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.workflow-tabs {
  position: sticky;
  top: 0;
  z-index: 4;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  padding: 8px 0;
  background: #ffffff;
}

.preset-row button,
.tab-row button {
  min-height: 34px;
  font-size: 13px;
}

textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  border: 1px solid #c8d2dd;
  border-radius: 8px;
  padding: 12px;
  line-height: 1.45;
  color: #192531;
  background: #fbfcfd;
}

.system-box {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 10px;
  background: #fbfcfd;
}

.system-box summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  color: #25313d;
}

.system-box textarea {
  min-height: 180px;
  margin-top: 10px;
  font-size: 12px;
}

.button-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
}

.env-row {
  display: grid;
  grid-template-columns: auto minmax(110px, 1fr) auto minmax(140px, 1fr);
  align-items: center;
  gap: 8px;
}

.env-row select,
.env-row input {
  min-width: 0;
  border: 1px solid #c8d2dd;
  border-radius: 8px;
  padding: 8px 10px;
  color: #192531;
  background: #ffffff;
}

.scad-lab {
  display: grid;
  gap: 10px;
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 12px;
  background: #f8fbfa;
}

.scad-lab-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.scad-lab-head span,
.scad-output {
  color: #526170;
  font-size: 12px;
  line-height: 1.4;
}

.scad-lab textarea {
  min-height: 220px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
}

.scad-output {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 8px 10px;
  background: #ffffff;
}

.reward-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-top: 8px;
}

.reward-grid span {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 6px 8px;
  background: #fbfcfd;
  color: #25313d;
  font-weight: 750;
}

.scad-output ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

.tool-budget {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 10px;
  background: #fbfcfd;
}

.tool-budget input {
  grid-column: 1 / -1;
  width: 100%;
}

.render-state {
  display: grid;
  gap: 6px;
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 10px;
  background: #fbfcfd;
}

.render-state label {
  margin: 0;
}

.render-state select {
  min-height: 34px;
  border: 1px solid #c8d2dd;
  border-radius: 8px;
  padding: 0 8px;
  background: #ffffff;
  color: #17202a;
  font: inherit;
}

.render-state small {
  color: #526170;
  line-height: 1.35;
}

button {
  min-height: 38px;
  border: 1px solid #b9c5d2;
  border-radius: 8px;
  background: #ffffff;
  color: #17202a;
  cursor: pointer;
  font-weight: 750;
}

button:hover {
  border-color: #6c8296;
}

button:disabled {
  cursor: wait;
  opacity: 0.55;
}

button.primary {
  border-color: #164f73;
  background: #164f73;
  color: #ffffff;
}

button.generate-only {
  min-height: 46px;
  font-size: 15px;
}

button.tab-button.active {
  border-color: #164f73;
  background: #e9f4fa;
  color: #164f73;
}

.status {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 10px 12px;
  background: #f8fafc;
  color: #526170;
  line-height: 1.4;
}

.status.ok {
  border-color: #a7d8bd;
  background: #eefaf3;
  color: #1d6f43;
}

.status.error {
  border-color: #efb1a7;
  background: #fff3f0;
  color: #9a3527;
}

.status.working {
  border-color: #b9d2e4;
  background: #eef7fc;
  color: #245979;
}

.agent-steps {
  display: grid;
  gap: 8px;
}

.agent-steps:empty {
  display: none;
}

.agent-steps h3 {
  margin: 0;
  font-size: 14px;
}

.agent-step {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  background: #fbfcfd;
  overflow: hidden;
}

.agent-step summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  padding: 9px 10px;
  font-weight: 800;
}

.agent-step p {
  margin: 0;
  padding: 0 10px 8px;
  color: #526170;
  font-size: 12px;
  line-height: 1.4;
}

.agent-step dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin: 0;
  padding: 0 10px 10px;
}

.agent-step dl div {
  min-width: 0;
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 6px;
  background: #ffffff;
}

.agent-step dt,
.agent-step small {
  color: #637383;
  font-size: 11px;
}

.agent-step dt {
  font-weight: 800;
  text-transform: uppercase;
}

.agent-step dd {
  margin: 3px 0 0;
  font-size: 12px;
  overflow-wrap: anywhere;
}

.agent-step small {
  display: block;
  padding: 0 10px 10px;
  line-height: 1.35;
}

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

.benchmark-results {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.benchmark-card {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 10px;
  background: #fbfcfd;
}

.benchmark-card div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.benchmark-card span {
  color: #526170;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.benchmark-card strong {
  font-size: 22px;
}

.benchmark-card p {
  margin: 6px 0;
  font-weight: 750;
}

.benchmark-card small {
  color: #637383;
}

.benchmark-card.error-card {
  border-color: #efb1a7;
  background: #fff7f5;
}

.benchmark-card.error-card strong,
.benchmark-card.error-card p {
  color: #9a3527;
}

.metric {
  min-height: 68px;
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  padding: 10px;
  background: #fbfcfd;
}

.metric span {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  color: #637383;
}

.metric strong {
  font-size: 18px;
}

.json {
  min-height: 180px;
  max-height: 360px;
  overflow: auto;
  margin: 0;
  border-radius: 8px;
  padding: 12px;
  background: #101820;
  color: #dce7ef;
  font-size: 12px;
  line-height: 1.45;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.trace {
  display: grid;
  gap: 8px;
}

.agent-loop {
  display: grid;
  gap: 10px;
}

.agent-loop h3 {
  margin: 4px 0 0;
  font-size: 14px;
}

.loop-strip,
.iteration-grid {
  display: grid;
  gap: 8px;
}

.loop-strip {
  grid-template-columns: repeat(auto-fit, minmax(82px, 1fr));
}

.loop-strip span,
.iteration-card,
.empty-note {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  background: #fbfcfd;
}

.loop-strip span {
  min-height: 44px;
  display: grid;
  place-items: center;
  padding: 8px;
  text-align: center;
  font-size: 12px;
  font-weight: 800;
  color: #314253;
}

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

.tool-grid {
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

.iteration-card {
  min-height: 78px;
  padding: 10px;
}

.iteration-card span,
.iteration-card small {
  display: block;
  color: #637383;
  font-size: 12px;
}

.iteration-card strong {
  display: block;
  margin: 4px 0;
  font-size: 22px;
}

.empty-note {
  margin: 0;
  padding: 12px;
  color: #526170;
}


.trace-step {
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  background: #fbfcfd;
  overflow: hidden;
}

.trace-step summary {
  cursor: pointer;
  padding: 10px 12px;
  font-weight: 800;
  color: #25313d;
}

.trace-step pre {
  max-height: 260px;
  overflow: auto;
  margin: 0;
  border-top: 1px solid #d8e0e8;
  padding: 12px;
  background: #111923;
  color: #dce7ef;
  font-size: 12px;
  line-height: 1.45;
}

.viewer-wrap {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 100vh;
}

.viewer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 22px;
  border-bottom: 1px solid #d9e0e8;
  background: #ffffff;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
  color: #526170;
  font-size: 13px;
}

.swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 6px;
  border-radius: 50%;
}

.swatch.plate {
  background: #8ca3b7;
}

.swatch.rib {
  background: #23a36f;
}

.swatch.boss {
  background: #4b6f9f;
}

.swatch.slot {
  background: #24313c;
}

.swatch.decorative {
  background: #7aa0bd;
}

.swatch.load {
  background: #dd3b3b;
}

.swatch.stress {
  background: #df4a35;
}

.swatch.warning {
  background: #d88b25;
}

#viewer {
  width: 100%;
  min-height: 0;
}

.view-captures {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 10px;
  border-top: 1px solid #d9e0e8;
  background: #ffffff;
}

.view-captures:empty {
  display: none;
}

.view-captures figure {
  margin: 0;
  border: 1px solid #d8e0e8;
  border-radius: 8px;
  overflow: hidden;
  background: #f8fafc;
}

.view-captures img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.view-captures figcaption {
  padding: 6px 8px;
  color: #526170;
  font-size: 12px;
  font-weight: 800;
  text-transform: capitalize;
}

canvas {
  display: block;
}

@media (max-width: 880px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .controls {
    max-height: none;
  }

  .viewer-wrap {
    min-height: 70vh;
  }

  h1 {
    max-width: none;
    font-size: 32px;
  }

  .route-grid {
    grid-template-columns: 1fr;
  }

  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .run-table {
    display: block;
    overflow-x: auto;
  }
}

@media (min-width: 881px) and (max-width: 1180px) {
  .route-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .evidence-grid {
    grid-template-columns: 1fr;
  }
}