@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Source+Serif+4:opsz,wght@8..60,400..700&family=JetBrains+Mono:wght@400;500;600&display=swap");

:root {
  --paper: #f3eee5;
  --paper-2: #e9e0d3;
  --surface: #fdfbf6;
  --surface-2: #f7f1e7;
  --ink: #111923;
  --ink-2: #243040;
  --muted: #66707d;
  --faint: #8c9299;
  --line: rgba(17, 25, 35, 0.12);
  --line-soft: rgba(17, 25, 35, 0.07);
  --green: #234c37;
  --green-2: #3e7356;
  --red: #8a2b1f;
  --red-2: #b45d4c;
  --amber: #a56a1d;
  --blue: #315f8f;
  --shadow: 0 1px 3px rgba(17, 25, 35, 0.06), 0 18px 50px rgba(17, 25, 35, 0.08);
  --shadow-soft: 0 1px 2px rgba(17, 25, 35, 0.05);
  --radius: 16px;
  --radius-sm: 9px;
}

* { box-sizing: border-box; margin: 0; }

body {
  min-height: 100vh;
  background:
    linear-gradient(90deg, rgba(17, 25, 35, 0.03) 1px, transparent 1px),
    linear-gradient(0deg, rgba(17, 25, 35, 0.025) 1px, transparent 1px),
    var(--paper);
  background-size: 42px 42px, 42px 42px, auto;
  color: var(--ink-2);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 64px;
  padding: 0 24px;
  background: rgba(243, 238, 229, 0.88);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(18px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--surface);
  display: grid;
  place-items: center;
  letter-spacing: 0;
  font-weight: 800;
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 8px 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}

.button-quiet { background: rgba(253, 251, 246, 0.74); color: var(--ink-2); }
.button-solid { background: var(--red); border-color: var(--red); color: var(--surface); }

.workspace {
  width: min(1800px, calc(100% - 32px));
  margin: 24px auto;
  display: grid;
  grid-template-columns: 286px minmax(0, 1fr) 330px;
  gap: 18px;
  align-items: start;
}

.case-rail,
.center-stage,
.apparatus {
  min-width: 0;
}

.case-rail,
.apparatus {
  position: sticky;
  top: 88px;
}

.rail-head,
.apparatus-head,
.panel,
.case-hero,
.rail-note,
.apparatus-card {
  background: rgba(253, 251, 246, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.rail-head {
  padding: 24px;
  margin-bottom: 12px;
}

.eyebrow {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 8px;
}

h1,
h2,
h3 {
  color: var(--ink);
  font-family: "Source Serif 4", Georgia, serif;
  font-weight: 560;
  letter-spacing: -0.015em;
}

h1 {
  font-size: 34px;
  line-height: 1.02;
}

h2 {
  font-size: clamp(32px, 4vw, 54px);
  line-height: 0.98;
}

h3 {
  font-size: 25px;
  line-height: 1.05;
}

.case-list {
  display: grid;
  gap: 10px;
}

.case-button {
  width: 100%;
  text-align: left;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(253, 251, 246, 0.84);
  cursor: pointer;
  display: grid;
  gap: 9px;
  color: var(--ink-2);
  box-shadow: var(--shadow-soft);
}

.case-button:hover,
.case-button.is-active {
  border-color: rgba(138, 43, 31, 0.36);
  background: #fffdf9;
}

.case-button.is-active {
  box-shadow: inset 3px 0 0 var(--red), var(--shadow-soft);
}

.case-button strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.2;
}

.case-button span {
  color: var(--muted);
  font-size: 13px;
}

.rail-note {
  margin-top: 14px;
  padding: 16px;
  color: var(--muted);
  font-size: 13px;
}

.rail-note strong {
  color: var(--ink);
  display: block;
  margin-bottom: 4px;
}

.center-stage {
  display: grid;
  gap: 16px;
}

.case-hero {
  padding: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  gap: 22px;
  align-items: stretch;
  box-shadow: var(--shadow);
}

.case-summary {
  max-width: 78ch;
  margin-top: 13px;
  color: var(--ink-2);
  font-size: 16px;
}

.scorebox {
  border-left: 1px solid var(--line);
  padding-left: 20px;
  display: grid;
  align-content: center;
  gap: 5px;
}

.score-label {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.scorebox strong {
  color: var(--red);
  font-size: 27px;
  line-height: 1;
}

.scorebox small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

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

.mode-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(253, 251, 246, 0.72);
  color: var(--muted);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mode-live {
  border-color: rgba(35, 76, 55, 0.34);
  background: rgba(35, 76, 55, 0.1);
  color: var(--green);
}

.panel,
.apparatus-card {
  padding: 20px;
}

.panel-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 16px;
}

.panel-head .eyebrow {
  margin-bottom: 0;
}

.source-chain {
  display: grid;
  gap: 12px;
}

.source-card {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}

.source-stage {
  display: grid;
  align-content: start;
  gap: 8px;
}

.source-stage span {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--surface);
  display: grid;
  place-items: center;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
}

.source-stage strong,
.decision-actor span {
  color: var(--red);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.source-copy,
.decision-copy {
  min-width: 0;
}

.source-copy h4,
.decision-copy h4 {
  color: var(--ink);
  font-size: 15px;
  line-height: 1.25;
  margin-bottom: 6px;
}

.source-copy p,
.decision-copy p {
  color: var(--ink-2);
  font-size: 13px;
  line-height: 1.55;
}

.source-copy small {
  display: inline-flex;
  margin-top: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(35, 76, 55, 0.1);
  color: var(--green);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.04em;
}

.decision-list,
.attribution-grid {
  display: grid;
  gap: 10px;
}

.decision-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-soft);
}

.decision-row:last-child,
.attribution-row:last-child {
  border-bottom: 0;
}

.decision-actor {
  display: grid;
  align-content: start;
  gap: 5px;
}

.decision-actor strong {
  color: var(--ink);
  font-size: 13px;
}

.artifact-body {
  display: grid;
  gap: 12px;
  padding: 18px;
  border-left: 3px solid var(--red);
  background: rgba(138, 43, 31, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink);
}

.artifact-body p {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 18px;
  line-height: 1.55;
}

.attribution-grid {
  margin-top: 16px;
}

.attribution-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.attribution-row strong {
  color: var(--ink);
  font-size: 13px;
}

.attribution-row p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  margin-top: 3px;
}

.treatment-chip {
  border-radius: 999px;
  padding: 5px 9px;
  border: 1px solid var(--line);
  color: var(--ink-2);
  background: var(--surface-2);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  text-transform: uppercase;
  white-space: nowrap;
}

.apparatus {
  display: grid;
  gap: 12px;
}

.apparatus-head {
  padding: 22px;
}

.card-title {
  color: var(--ink);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.claim-list,
.memory-list {
  display: grid;
  gap: 12px;
}

.claim-event {
  display: grid;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.claim-event:last-child,
.memory-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.claim-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.claim-top strong,
.memory-item strong {
  color: var(--ink);
  font-size: 13px;
  line-height: 1.3;
}

.delta {
  flex: 0 0 auto;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  color: var(--green);
}

.delta.down {
  color: var(--red);
}

.posterior {
  height: 8px;
  border-radius: 999px;
  background: var(--paper-2);
  overflow: hidden;
}

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

.claim-event p,
.memory-item p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.memory-item {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.memory-tag {
  display: inline-flex;
  margin-bottom: 6px;
  padding: 3px 7px;
  border-radius: 999px;
  background: rgba(138, 43, 31, 0.08);
  color: var(--red);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.provenance {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 8px 10px;
  font-size: 12px;
}

.provenance dt {
  color: var(--muted);
}

.provenance dd {
  color: var(--ink);
  min-width: 0;
  word-break: break-word;
}

.local-controls {
  display: grid;
  gap: 10px;
}

.local-controls label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 12px;
}

.local-controls label span {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.local-controls input,
.local-controls textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-2);
  color: var(--ink);
  padding: 9px 10px;
  font: inherit;
  font-size: 12px;
  resize: vertical;
}

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

.mini-button {
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--ink-2);
  padding: 7px 11px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 650;
}

.mini-button-solid {
  background: var(--green);
  border-color: var(--green);
  color: var(--surface);
}

.runtime-status {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.runtime-status[data-tone="ok"] { color: var(--green); }
.runtime-status[data-tone="warn"] { color: var(--red); }

.runtime-output {
  display: none;
  max-height: 220px;
  overflow: auto;
  padding: 11px;
  border: 1px solid var(--line-soft);
  border-radius: 9px;
  background: #111923;
  color: #fdfbf6;
  white-space: pre-wrap;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  line-height: 1.45;
}

.runtime-output:not(:empty) {
  display: block;
}

@media (max-width: 1120px) {
  .workspace {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .apparatus {
    position: static;
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .apparatus-head {
    grid-column: 1 / -1;
  }
}

@media (max-width: 1500px) and (min-width: 1121px) {
  .case-hero {
    grid-template-columns: 1fr;
  }

  .scorebox {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 16px;
  }
}

@media (max-width: 920px) {
  .topbar {
    height: auto;
    min-height: 64px;
    align-items: flex-start;
    padding: 14px 16px;
    flex-direction: column;
  }

  .top-actions {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .workspace {
    width: min(100% - 22px, 720px);
    grid-template-columns: 1fr;
  }

  .case-rail {
    position: static;
  }

  .case-hero {
    grid-template-columns: 1fr;
  }

  .scorebox {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 16px;
  }

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

  .source-card,
  .decision-row,
  .attribution-row {
    grid-template-columns: 1fr;
    align-items: start;
  }
}