:root {
  color-scheme: light;
  --ink: #172026;
  --muted: #63707a;
  --line: #d7dde2;
  --paper: #f7f8f8;
  --panel: #ffffff;
  --accent: #1c6e63;
  --accent-strong: #114f48;
  --amber: #b97718;
  --blue: #2f5f9f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

.toolkit-page {
  background: #f4f6f5;
}

.toolkit-shell {
  display: grid;
  gap: 24px;
  margin: 0 auto;
  max-width: 1180px;
  padding: 32px 24px 56px;
}

.toolkit-hero {
  align-items: stretch;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  padding: 28px;
}

.toolkit-hero h1 {
  color: var(--ink);
  font-size: 42px;
  line-height: 1.08;
  max-width: 760px;
}

.toolkit-hero p {
  color: var(--muted);
  line-height: 1.7;
  margin: 18px 0 0;
  max-width: 720px;
}

.toolkit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.toolkit-actions a {
  background: var(--accent);
  border-radius: 6px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
  padding: 11px 14px;
  text-decoration: none;
}

.toolkit-actions a:nth-child(n + 2) {
  background: #e8efed;
  color: var(--accent-strong);
}

.toolkit-language {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.toolkit-language a {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 800;
  padding: 7px 10px;
  text-decoration: none;
}

.toolkit-language a.is-active {
  background: #182421;
  border-color: #182421;
  color: #ffffff;
}

.toolkit-signal {
  background: #182421;
  border-radius: 8px;
  color: #ffffff;
  display: grid;
  gap: 1px;
  overflow: hidden;
}

.toolkit-signal div {
  background: rgba(255, 255, 255, 0.06);
  padding: 18px;
}

.toolkit-signal span {
  color: #a9c6bf;
  display: block;
  font-size: 12px;
  margin-bottom: 8px;
}

.toolkit-signal strong {
  font-size: 20px;
}

.toolkit-band {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.toolkit-section-heading {
  align-items: end;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.toolkit-section-heading h2,
.toolkit-validation h2 {
  font-size: 24px;
}

.toolkit-integration-grid,
.toolkit-capability-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.toolkit-endpoint,
.toolkit-capability {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.toolkit-endpoint span {
  color: var(--muted);
  display: block;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.toolkit-endpoint code,
.toolkit-capability code {
  color: var(--accent-strong);
  overflow-wrap: anywhere;
}

.toolkit-card-top {
  align-items: start;
  display: flex;
  gap: 14px;
  justify-content: space-between;
}

.toolkit-card-top strong {
  background: #e8efed;
  border-radius: 6px;
  color: var(--accent-strong);
  min-width: 56px;
  padding: 7px 8px;
  text-align: center;
}

.toolkit-capability p,
.toolkit-capability li,
.toolkit-validation li {
  color: var(--muted);
  line-height: 1.6;
}

.toolkit-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 14px 0;
}

.toolkit-tags span {
  background: #f0f3f2;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  padding: 5px 8px;
}

.toolkit-capability dl {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}

.toolkit-capability dl div {
  display: grid;
  gap: 8px;
  grid-template-columns: 90px minmax(0, 1fr);
}

.toolkit-capability dt {
  color: var(--muted);
  font-size: 12px;
}

.toolkit-capability dd {
  margin: 0;
}

.toolkit-validation {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.app-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
  padding: 32px 28px;
  background: #182421;
  color: #f4f7f5;
}

.eyebrow {
  margin: 0 0 8px;
  color: #7bb7a7;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 30px;
  line-height: 1.18;
}

h2 {
  font-size: 26px;
}

h3 {
  font-size: 17px;
}

.lede {
  margin: 18px 0 0;
  color: #c9d7d2;
  line-height: 1.7;
}

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

.nav-list a {
  color: #e9f0ed;
  text-decoration: none;
  padding: 11px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
}

.workspace {
  padding: 28px;
  display: grid;
  gap: 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 8px;
}

.project-picker {
  display: grid;
  gap: 0.2rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.project-picker select {
  min-width: 9rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
}

.auth-status {
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.language-switch {
  align-items: center;
  background: #e7ecea;
  border: 1px solid var(--line);
  border-radius: 6px;
  display: inline-flex;
  gap: 2px;
  padding: 3px;
}

.language-option {
  background: transparent;
  color: var(--accent-strong);
  min-height: 34px;
  min-width: 48px;
  padding: 0 10px;
}

.language-option:hover,
.language-option.is-active {
  background: #ffffff;
  color: var(--ink);
}

button {
  border: 0;
  border-radius: 6px;
  min-height: 42px;
  padding: 0 18px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.compact-grid {
  gap: 16px;
  margin-top: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  min-width: 0;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-heading span {
  color: var(--muted);
  font-size: 12px;
}

.sub-heading {
  margin-top: 18px;
}

.mini-heading {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 10px;
  text-transform: uppercase;
}

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

.status-grid div {
  background: #f2f5f4;
  border: 1px solid var(--line);
  border-radius: 6px;
  min-width: 0;
  padding: 12px;
}

.status-grid span {
  color: var(--muted);
  display: block;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.status-grid strong {
  display: block;
  font-size: 15px;
  overflow-wrap: anywhere;
}

.contract-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -4px 0 12px;
}

.contract-links a {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 700;
  padding: 7px 10px;
  text-decoration: none;
}

.contract-links a:hover {
  border-color: var(--accent);
  background: #eef6f3;
}

.goal-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
  margin: 12px 0 0;
}

.goal-actions a {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 700;
  padding: 10px 12px;
  text-decoration: none;
}

.goal-actions a:hover {
  background: #eef6f3;
  border-color: var(--accent);
}

.proposal-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
  margin: 12px 0 0;
}

.evidence-heading {
  margin-top: 16px;
}

.evidence-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 14px;
}

.proposal-preview-shell {
  border: 1px solid var(--line);
  border-radius: 8px;
  height: 520px;
  margin: 16px 0 14px;
  overflow: hidden;
}

.proposal-preview-shell iframe {
  border: 0;
  height: 100%;
  width: 100%;
}

.editor-panel {
  min-height: 300px;
}

textarea {
  width: 100%;
  min-height: 260px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px;
  font: 13px/1.6 Consolas, "SFMono-Regular", monospace;
  color: var(--ink);
}

.compact-textarea {
  min-height: 130px;
}

.ingest-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  margin-bottom: 12px;
}

#ingestInput {
  min-height: 110px;
}

#ingestOutput {
  min-height: 140px;
}

.learning-controls {
  align-items: center;
  display: grid;
  gap: 10px;
  grid-template-columns: 90px minmax(80px, auto) auto;
  margin-bottom: 12px;
}

.cycle-controls {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.cycle-controls label {
  color: var(--muted);
  font-size: 13px;
}

.learning-controls input[type="number"] {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  font: 14px/1.4 Inter, "Segoe UI", Arial, sans-serif;
  min-height: 38px;
  padding: 0 10px;
  width: 100%;
}

.learning-controls label {
  color: var(--muted);
  font-size: 13px;
}

#learningOutput {
  min-height: 170px;
}

pre {
  min-height: 240px;
  max-height: 520px;
  overflow: auto;
  margin: 0;
  padding: 14px;
  border-radius: 6px;
  background: #f2f5f4;
  font: 12px/1.55 Consolas, "SFMono-Regular", monospace;
  white-space: pre-wrap;
}

.stack {
  display: grid;
  gap: 10px;
}

.item {
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  padding: 12px;
}

.item strong {
  display: block;
  margin-bottom: 6px;
}

.item p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.score {
  color: var(--blue);
  font-weight: 800;
}

.decision-adopt {
  border-left-color: var(--accent);
}

.decision-test {
  border-left-color: var(--amber);
}

@media (max-width: 900px) {
  .app-shell,
  .grid,
  .toolkit-hero,
  .toolkit-integration-grid,
  .toolkit-capability-grid,
  .toolkit-validation {
    grid-template-columns: 1fr;
  }

  .sidebar {
    min-height: auto;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar-actions {
    justify-content: stretch;
  }

  .language-switch {
    flex: 1 1 140px;
    justify-content: center;
  }

  .topbar-actions button {
    flex: 1 1 180px;
  }

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

  .ingest-row {
    grid-template-columns: 1fr;
  }

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

  .learning-controls {
    grid-template-columns: 1fr;
  }

  .toolkit-hero h1 {
    font-size: 32px;
  }
}

@media (max-width: 560px) {
  .status-grid {
    grid-template-columns: 1fr;
  }
}