:root {
  --ink: #20242a;
  --muted: #5b6572;
  --line: #d8ddd8;
  --surface: #ffffff;
  --page: #f5f6f2;
  --soft: #eef3ec;
  --oracle: #c74634;
  --teal: #007a73;
  --blue: #245f85;
  --gold: #a56500;
  --green: #2f7d4a;
  --red-soft: #fbe9e6;
  --green-soft: #eaf5ed;
  --gold-soft: #fbf0d9;
  --blue-soft: #e7f0f6;
  --shadow: 0 16px 40px rgba(32, 36, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(199, 70, 52, 0.07), rgba(0, 122, 115, 0.04) 320px, transparent 520px),
    var(--page);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.4;
}

button,
input,
select {
  font: inherit;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 28px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(12px);
}

.topbar h1,
.panel h2,
.panel h3,
.empty-title {
  margin: 0;
  letter-spacing: 0;
}

.topbar h1 {
  font-size: 26px;
  line-height: 1.15;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--oracle);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.topbar-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.topbar-meta span,
.status-pill,
.tag,
.fit-badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  padding: 5px 8px;
  white-space: nowrap;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(430px, 1fr) minmax(430px, 1.1fr);
  gap: 16px;
  padding: 16px;
  min-height: calc(100vh - 128px);
}

.panel {
  min-width: 0;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.panel h2 {
  font-size: 18px;
}

.panel h3 {
  font-size: 15px;
}

.status-pill {
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
}

.scenario-form {
  display: grid;
  gap: 13px;
  padding: 16px;
}

label,
legend {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

select {
  display: block;
  width: 100%;
  min-height: 38px;
  margin-top: 6px;
  padding: 8px 10px;
  color: var(--ink);
  background: #fbfcfa;
  border: 1px solid var(--line);
  border-radius: 6px;
}

fieldset {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
}

.button-row,
.output-actions {
  display: flex;
  gap: 8px;
}

.primary-button,
.secondary-button,
.icon-button {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 8px 11px;
  cursor: pointer;
  font-weight: 700;
}

.primary-button {
  flex: 1;
  color: white;
  background: var(--oracle);
}

.secondary-button,
.icon-button {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--line);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.evidence-box {
  margin: 0 16px 16px;
  padding: 14px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.evidence-box dl {
  display: grid;
  gap: 10px;
  margin: 12px 0 0;
}

.evidence-box dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.evidence-box dd {
  margin: 2px 0 0;
  font-size: 13px;
}

.stat-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.catalog-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.metric {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.metric strong {
  display: block;
  font-size: 22px;
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

.table-wrap {
  overflow: auto;
  max-height: calc(100vh - 290px);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f9faf6;
  color: var(--muted);
  font-size: 11px;
  text-align: left;
  text-transform: uppercase;
}

th,
td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.asset-title {
  display: block;
  font-weight: 700;
}

.asset-subtitle {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.tag {
  font-size: 11px;
  padding: 3px 6px;
}

.fit-badge {
  display: inline-flex;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 7px;
}

.fit-strong_fit {
  color: var(--green);
  background: var(--green-soft);
  border-color: #b9ddc5;
}

.fit-conditional_fit {
  color: var(--gold);
  background: var(--gold-soft);
  border-color: #e8c983;
}

.fit-rejected {
  color: var(--oracle);
  background: var(--red-soft);
  border-color: #edc0b8;
}

.empty-state {
  display: grid;
  align-content: center;
  min-height: 320px;
  margin: 16px;
  padding: 24px;
  border: 1px dashed #b8c0b8;
  border-radius: 8px;
  background: #fbfcfa;
  color: var(--muted);
  text-align: center;
}

.empty-title {
  color: var(--ink);
  font-size: 18px;
  font-weight: 700;
}

.hidden {
  display: none !important;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  gap: 8px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
  background: #fbfcfa;
}

.pipeline-step {
  position: relative;
  min-height: 112px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.pipeline-step::after {
  content: "";
  position: absolute;
  top: 24px;
  right: -10px;
  width: 12px;
  height: 2px;
  background: var(--line);
}

.pipeline-step:last-child::after {
  display: none;
}

.pipeline-step.active {
  border-color: var(--blue);
  box-shadow: inset 0 0 0 2px rgba(36, 95, 133, 0.16);
}

.pipeline-step.complete {
  border-color: #a9d3b6;
  background: var(--green-soft);
}

.pipeline-step strong {
  display: block;
  font-size: 13px;
}

.pipeline-step span {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
}

.proof-pack {
  display: grid;
  gap: 14px;
  padding: 16px;
  max-height: calc(100vh - 230px);
  overflow: auto;
}

.proof-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}

.proof-section > header {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  background: #fbfcfa;
}

.proof-section > div {
  padding: 14px;
}

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

.concept-cell,
.proof-metric-cell {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.concept-cell span,
.proof-metric-cell span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.concept-cell strong,
.proof-metric-cell strong {
  display: block;
  margin-top: 4px;
  font-size: 15px;
}

.lineup-list,
.rejected-list,
.talk-track,
.service-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.lineup-item,
.rejected-item,
.talk-track li,
.service-list li {
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.lineup-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.lineup-title {
  font-weight: 700;
}

.lineup-meta {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.reason {
  margin: 8px 0 0;
}

.architecture {
  display: grid;
  grid-template-columns: repeat(5, minmax(100px, 1fr));
  gap: 9px;
}

.arch-node {
  min-height: 94px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--blue-soft);
}

.arch-node:nth-child(2) {
  background: var(--green-soft);
}

.arch-node:nth-child(3) {
  background: var(--gold-soft);
}

.arch-node:nth-child(4) {
  background: #eef3ec;
}

.arch-node:nth-child(5) {
  background: var(--red-soft);
}

.arch-node strong {
  display: block;
  font-size: 13px;
}

.arch-node span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

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

.footer {
  padding: 0 16px 16px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 1280px) {
  .workspace {
    grid-template-columns: 320px 1fr;
  }

  .output-panel {
    grid-column: 1 / -1;
  }

  .proof-pack {
    max-height: none;
  }
}

@media (max-width: 840px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-meta {
    justify-content: flex-start;
  }

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

  .catalog-summary,
  .concept-grid,
  .proof-metrics,
  .architecture,
  .pipeline {
    grid-template-columns: 1fr;
  }

  .pipeline-step::after {
    display: none;
  }

  .table-wrap {
    max-height: none;
  }
}