:root {
  color-scheme: light;
  --bg: #f3f5f2;
  --paper: #fffef8;
  --surface: #ffffff;
  --surface-2: #eef3f4;
  --ink: #10251f;
  --muted: #66746f;
  --faint: #899892;
  --line: #cbd8d2;
  --line-dark: #27443a;
  --green: #135d46;
  --blue: #245d89;
  --red: #9d332a;
  --amber: #9f681e;
  --shadow: 0 18px 48px rgba(16, 37, 31, 0.1);
  --radius: 8px;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(90deg, rgba(36, 93, 137, 0.05), transparent 34%, rgba(157, 51, 42, 0.04)),
    var(--bg);
  color: var(--ink);
  font-family: var(--sans);
}

button,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 62px;
  padding: 12px clamp(18px, 4vw, 56px);
  border-bottom: 2px solid var(--line-dark);
  background: rgba(243, 245, 242, 0.94);
  backdrop-filter: blur(14px);
}

.wordmark {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 1.24rem;
  font-weight: 800;
  letter-spacing: 0.28em;
  margin-right: -0.28em;
  text-decoration: none;
}

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

.topnav a {
  color: var(--muted);
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.topnav a:hover {
  color: var(--green);
}

.sheet {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(22px, 4vw, 48px) 0 56px;
}

.record-line {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.input-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.68fr);
  gap: 18px;
  align-items: stretch;
}

.input-pane,
.purpose-pane,
.panel,
.verdict-card,
.record-item,
.subpanel,
.gate-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.input-pane,
.purpose-pane,
.panel,
.verdict-card {
  padding: clamp(20px, 3vw, 30px);
}

.purpose-pane {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--paper);
}

.purpose-pane > p:not(.kicker) {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.18rem;
  line-height: 1.58;
}

.kicker,
.field-label,
.select-wrap span {
  display: block;
  margin: 0 0 8px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 20px;
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 4.45rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-family: var(--serif);
  font-size: clamp(1.28rem, 2.4vw, 2rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: 0;
}

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

textarea {
  display: block;
  width: 100%;
  min-height: 170px;
  resize: vertical;
  padding: 16px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: #fffefb;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.04rem;
  font-style: italic;
  line-height: 1.6;
  outline: none;
}

textarea:focus,
select:focus,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(36, 93, 137, 0.24);
  outline-offset: 2px;
}

.dataset-upload {
  margin-top: 16px;
}

.file-row,
.control-row,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
}

.file-row,
.control-row {
  margin-top: 8px;
}

.button-row {
  margin-top: 18px;
}

input[type="file"] {
  max-width: 100%;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfb;
  color: var(--ink);
}

.helper-text {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.select-wrap {
  flex: 1 1 220px;
}

select {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
}

.segmented {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(96px, 1fr));
  min-height: 44px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.segment {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
}

.segment.active {
  background: var(--green);
  color: white;
}

.primary-action,
.secondary-action {
  min-height: 44px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.primary-action {
  flex: 1 1 220px;
  padding: 0 18px;
  border: 1px solid var(--line-dark);
  background: var(--ink);
  color: white;
}

.secondary-action {
  padding: 0 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.primary-action:hover,
.secondary-action:hover {
  transform: translateY(-1px);
}

.signal-list {
  display: grid;
  gap: 10px;
  margin: 26px 0 0;
}

.signal-list div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.signal-list dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signal-list dd {
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--ink);
  font-family: var(--mono);
}

.verdict-section,
.narrative-grid,
.gate-section,
.record-section {
  margin-top: clamp(22px, 4vw, 42px);
}

.verdict-card {
  position: relative;
  border-left: 5px solid var(--green);
  background: var(--paper);
}

.verdict-card.needs-resolution {
  border-left-color: var(--red);
}

.verdict-status {
  margin-bottom: 12px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.verdict-card.needs-resolution .verdict-status {
  color: var(--red);
}

.verdict-finding {
  max-width: 820px;
  margin: 14px 0 8px;
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  line-height: 1.35;
}

.verdict-basis {
  max-width: 900px;
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.blocking-band {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  padding: 16px;
  border: 1px solid rgba(157, 51, 42, 0.35);
  border-radius: var(--radius);
  background: rgba(157, 51, 42, 0.06);
}

.blocking-band[hidden] {
  display: none;
}

.blocking-band h3 {
  margin: 0;
  color: var(--red);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blocking-band ul {
  margin: 0;
  padding-left: 18px;
  line-height: 1.45;
}

.narrative-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.82fr);
  gap: 18px;
}

.section-heading {
  margin-bottom: 16px;
}

.protocol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  border-top: 1px solid var(--line);
}

.protocol li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  line-height: 1.5;
}

.protocol li::before {
  content: counter(step, decimal-leading-zero);
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.78rem;
  padding-top: 2px;
}

.protocol strong,
.decision-table th {
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.protocol .computed {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.decision-table {
  width: 100%;
  border-collapse: collapse;
}

.decision-table th,
.decision-table td {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  text-align: left;
}

.decision-table th {
  width: 34%;
  padding-right: 16px;
}

.decision-value {
  font-family: var(--mono);
  overflow-wrap: anywhere;
}

.decision-note {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.struck {
  margin-right: 0.6em;
  color: var(--faint);
  text-decoration: line-through;
  text-decoration-color: var(--red);
  text-decoration-thickness: 1.5px;
}

.corrected {
  color: var(--ink);
  font-weight: 800;
}

.gate-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.gate-resolution {
  margin-bottom: 16px;
}

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

.gate-answer-field {
  display: grid;
  gap: 7px;
}

.gate-answer-field.wide {
  grid-column: 1 / -1;
}

.gate-answer-field input,
.gate-answer-field select {
  min-height: 42px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}

.gate-answer-field label,
.gate-answer-group legend {
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.gate-answer-help {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.gate-answer-group {
  grid-column: 1 / -1;
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.gate-answer-option {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  color: var(--ink);
  line-height: 1.4;
}

.gate-answer-option input {
  margin-top: 3px;
}

.gate-answer-actions {
  margin-top: 14px;
}

.gate-card.resolved {
  border-color: rgba(19, 93, 70, 0.45);
  background: #fbfffc;
}

.gate-card.accepted {
  border-color: rgba(36, 93, 137, 0.45);
}

.gate-card {
  padding: 18px;
  box-shadow: none;
}

.gate-card.block {
  border-color: rgba(157, 51, 42, 0.5);
}

.gate-card.warn {
  border-color: rgba(159, 104, 30, 0.45);
}

.gate-name {
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.severity {
  display: inline-flex;
  margin-left: 8px;
  padding: 2px 7px;
  border: 1px solid currentColor;
  color: var(--red);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.gate-card.warn .severity {
  color: var(--amber);
}

.gate-card:not(.block):not(.warn) .severity {
  color: var(--green);
}

.gate-card.accepted .severity {
  color: var(--blue);
}

.gate-card p {
  color: var(--muted);
  line-height: 1.5;
}

.gate-card ul {
  margin: 10px 0 0;
  padding-left: 20px;
  color: var(--ink);
  line-height: 1.5;
}

.record-stack {
  display: grid;
  gap: 12px;
}

.record-item {
  overflow: hidden;
  box-shadow: none;
}

.record-item summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  color: var(--ink);
  font-weight: 800;
  cursor: pointer;
}

.record-item summary span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.record-item > :not(summary) {
  margin: 0 18px 18px;
}

.compact-list,
.model-path {
  margin: 0;
  padding-left: 20px;
  line-height: 1.55;
}

.compact-list li,
.model-path li {
  margin-bottom: 8px;
}

.dataset-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.subpanel,
.formula-card,
.knowledge-card,
.ai-grid section {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfb;
}

.dataset-card dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.dataset-card dt {
  color: var(--green);
  font-weight: 800;
}

.dataset-card dd {
  margin: 0 0 6px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.dataset-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.45;
}

.dataset-card.wide {
  grid-column: 1 / -1;
}

.column-table {
  display: grid;
  gap: 8px;
}

.column-table div {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) repeat(3, minmax(90px, auto));
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.column-table span {
  color: var(--muted);
  font-size: 0.88rem;
}

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

.knowledge-grid {
  margin-top: 14px;
}

.formula-card .tag,
.knowledge-meta span {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  margin-bottom: 10px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}

.formula,
.knowledge-formula,
pre {
  overflow: auto;
  border-radius: var(--radius);
  background: #101917;
  color: #edf8f2;
  font-family: var(--mono);
  line-height: 1.55;
}

.formula,
.knowledge-formula {
  margin: 10px 0;
  padding: 12px;
  font-size: 0.82rem;
}

.formula-card p,
.knowledge-card p,
.knowledge-card dd,
.ai-summary,
.empty-state {
  color: var(--muted);
  line-height: 1.5;
}

.knowledge-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.knowledge-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.knowledge-card dl {
  display: grid;
  gap: 6px;
  margin: 0;
}

.knowledge-card dt {
  color: var(--ink);
  font-weight: 800;
}

.knowledge-card dd {
  margin: 0;
}

.knowledge-card a {
  margin-top: auto;
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

.knowledge-card a:hover {
  text-decoration: underline;
}

.ai-header,
.code-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.ai-header strong {
  color: var(--green);
}

.ai-header span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.84rem;
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.ai-grid h3 {
  color: var(--green);
  font-size: 0.94rem;
}

.ai-grid ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.45;
}

.code-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: 14px;
}

pre {
  max-height: 520px;
  margin: 0;
  padding: 16px;
  font-size: 0.84rem;
}

code {
  font-family: inherit;
}

.duality {
  max-width: 760px;
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  line-height: 1.55;
}

.legacy-output {
  display: none;
}

.footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 18px clamp(18px, 4vw, 56px);
  border-top: 2px solid var(--line-dark);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media (max-width: 1020px) {
  .input-grid,
  .narrative-grid,
  .code-layout {
    grid-template-columns: 1fr;
  }

  .dataset-grid,
  .formula-grid,
  .knowledge-grid,
  .ai-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .gate-answer-grid {
    grid-template-columns: 1fr;
  }

  .column-table div {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .masthead {
    align-items: flex-start;
    flex-direction: column;
  }

  .topnav {
    justify-content: flex-start;
  }

  .sheet {
    width: min(100% - 24px, 1180px);
  }

  h1 {
    font-size: 2.25rem;
  }

  .signal-list div,
  .decision-table th,
  .decision-table td {
    display: block;
    width: 100%;
  }

  .decision-table th {
    padding-bottom: 4px;
  }

  .dataset-grid,
  .formula-grid,
  .knowledge-grid,
  .ai-grid {
    grid-template-columns: 1fr;
  }

  .record-item summary {
    align-items: flex-start;
    flex-direction: column;
  }
}