:root {
  color-scheme: light;
  --cp-bg: #f7f4ef;
  --cp-bg-elevated: #fcfbf8;
  --cp-surface: #ffffff;
  --cp-surface-soft: #f5f5f5;
  --cp-border: #dedede;
  --cp-border-strong: #919191;
  --cp-text: #242424;
  --cp-text-muted: #5c5c5c;
  --cp-text-soft: #6f6f6f;
  --cp-accent: #b11f4b;
  --cp-accent-hover: #9a1a41;
  --cp-accent-soft: rgba(177, 31, 75, 0.08);
  --cp-accent-fg: #ffffff;
  --cp-success: #0f6b35;
  --cp-danger: #dc2626;
  --cp-warning: #754800;
  --cp-warning-soft: rgba(117, 72, 0, 0.1);
  --cp-link: #005ea8;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.12);
  --cp-overlay: rgba(255, 255, 255, 0.8);
  --cp-panel: rgba(255, 255, 255, 0.86);
  --cp-panel-strong: rgba(255, 255, 255, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.55);
  --cp-highlight: rgba(177, 31, 75, 0.12);
  --toml-logo-red: #9c4221;
}
html[data-theme="dark"] {
  color-scheme: dark;
  --cp-bg: #3d3b3a;
  --cp-bg-elevated: #343231;
  --cp-surface: #292929;
  --cp-surface-soft: #2e2e2e;
  --cp-border: #474747;
  --cp-border-strong: #5f5f5f;
  --cp-text: #dedede;
  --cp-text-muted: #919191;
  --cp-text-soft: #b0b0b0;
  --cp-accent: #fd8ea1;
  --cp-accent-hover: #fb7b91;
  --cp-accent-soft: rgba(253, 142, 161, 0.14);
  --cp-accent-fg: #1a1a1a;
  --cp-success: #4ade80;
  --cp-danger: #f87171;
  --cp-warning: #fbbf24;
  --cp-warning-soft: rgba(251, 191, 36, 0.12);
  --cp-link: #4da6ff;
  --cp-shadow: 0 18px 48px rgba(0, 0, 0, 0.32);
  --cp-overlay: rgba(41, 41, 41, 0.88);
  --cp-panel: rgba(41, 41, 41, 0.72);
  --cp-panel-strong: rgba(41, 41, 41, 0.96);
  --cp-sheen: rgba(255, 255, 255, 0.04);
  --cp-highlight: rgba(253, 142, 161, 0.12);
  --toml-logo-red: #9c4221;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--cp-bg);
  color: var(--cp-text);
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.55;
  margin: 0;
}
a {
  color: var(--cp-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:focus-visible {
  outline: 3px solid var(--cp-link);
  outline-offset: 3px;
}
code,
pre {
  font-family: Consolas, "Courier New", Courier, monospace;
}
.page {
  margin: 0 auto;
  max-width: 1120px;
  padding: 0 24px 48px;
}
header {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding: 24px 0;
}
.brand {
  align-items: center;
  color: var(--cp-text);
  display: inline-flex;
  font-weight: 700;
  gap: 10px;
  text-decoration: none;
}
.brand-logo {
  display: block;
  height: 48px;
  width: 210px;
}
.logo-bracket {
  fill: var(--toml-logo-red);
}
.logo-t {
  fill: var(--cp-text);
}
.logo-schema {
  fill: var(--cp-text-muted);
  font-family: "Segoe UI", Aptos, Calibri, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 52px;
  font-weight: 700;
}
.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}
nav a,
.button,
.button-secondary {
  border-radius: 0.625rem;
  display: inline-flex;
  font-weight: 600;
  padding: 10px 14px;
  text-decoration: none;
}
nav a,
.button-secondary {
  border: 1px solid var(--cp-border);
  color: var(--cp-text);
}
nav a:hover,
.button-secondary:hover {
  background: var(--cp-surface-soft);
}
nav a[aria-current="page"] {
  background: var(--cp-accent-soft);
  border-color: var(--cp-accent);
  color: var(--cp-accent);
}
.button {
  background: var(--cp-accent);
  color: var(--cp-accent-fg);
}
.button:hover {
  background: var(--cp-accent-hover);
}
.hero {
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
}
:is(.hero, .editor-hero, .report-hero) {
  padding: 56px 0;
}
.eyebrow {
  color: var(--cp-accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1,
h2,
h3 {
  line-height: 1.1;
  margin: 0;
}
h1 {
  font-size: clamp(44px, 7vw, 76px);
  letter-spacing: -0.05em;
  margin-top: 12px;
}
h2 {
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.03em;
}
h3 {
  font-size: 20px;
}
.lead {
  color: var(--cp-text-muted);
  font-size: 20px;
  margin: 20px 0 0;
  max-width: 680px;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.panel,
.card {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 16px;
  box-shadow: var(--cp-shadow);
}
.panel {
  align-self: start;
  overflow: hidden;
}
.panel-header {
  align-items: center;
  background: var(--cp-surface-soft);
  border-bottom: 1px solid var(--cp-border);
  display: flex;
  justify-content: space-between;
  padding: 12px 16px;
}
.dots {
  display: flex;
  gap: 6px;
}
.dot {
  background: var(--cp-border-strong);
  border-radius: 50%;
  height: 10px;
  width: 10px;
}
pre {
  max-width: 100%;
  min-width: 0;
  margin: 0;
  overscroll-behavior-inline: contain;
  overflow-x: auto;
  padding: 20px;
  white-space: pre;
}
.muted {
  color: var(--cp-text-muted);
}
.section {
  padding: 48px 0;
}
.section-intro {
  color: var(--cp-text-muted);
  margin: 12px 0 0;
  max-width: 760px;
}
.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}
.card {
  padding: 22px;
}
.card p {
  color: var(--cp-text-muted);
  margin: 12px 0 0;
}
.spec-list {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 24px;
}
.tour {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}
.tour-step {
  align-items: start;
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 16px;
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  padding: 22px;
}
.tour-step > *,
.tour-examples > div {
  min-width: 0;
}
.tour-step h3 {
  margin-top: 12px;
}
.tour-step p {
  color: var(--cp-text-muted);
  margin: 10px 0 0;
}
.tour-examples {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-width: 0;
}
.tour-code-label {
  color: var(--cp-text-muted);
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
  text-transform: uppercase;
}
.tour-step pre {
  background: var(--cp-surface-soft);
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  height: auto;
  padding: 16px;
  scrollbar-color: var(--cp-border-strong) transparent;
  scrollbar-width: thin;
}
.spec-item {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 0.625rem;
  padding: 16px;
}
.spec-item strong {
  display: block;
}
.spec-item span {
  color: var(--cp-text-muted);
  display: block;
  margin-top: 4px;
}
.implementations {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}
.badge {
  background: var(--cp-accent-soft);
  border-radius: 0.625rem;
  color: var(--cp-accent);
  display: inline-flex;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 8px;
}
.proof-band {
  align-items: center;
  border-bottom: 1px solid var(--cp-border-strong);
  border-top: 1px solid var(--cp-border-strong);
  color: var(--cp-text);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 24px 4px;
  text-decoration: none;
}
.proof-band > span:first-child {
  display: grid;
  gap: 4px;
}
.proof-band > span:first-child > span {
  color: var(--cp-text-muted);
}
.proof-band:hover .proof-result {
  color: var(--cp-accent-hover);
}
.proof-result {
  color: var(--cp-accent);
  flex: 0 0 auto;
  font-weight: 700;
}
footer {
  border-top: 1px solid var(--cp-border);
  color: var(--cp-text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  padding: 28px 0 0;
}

/* TOML Schema Editor promotion */
.editor-promo {
  align-items: center;
  border-bottom: 1px solid var(--cp-border-strong);
  border-top: 1px solid var(--cp-border-strong);
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  margin: 48px 0 0;
  padding: 48px 0;
}
.editor-promo h2 {
  max-width: 12ch;
}
.editor-promo p {
  color: var(--cp-text-muted);
  font-size: 18px;
  margin: 18px 0 20px;
}
.text-link {
  color: var(--cp-accent);
  font-weight: 700;
  text-decoration: none;
}
.text-link:hover {
  color: var(--cp-accent-hover);
}
.text-link span {
  display: inline-block;
  transition: transform 0.18s ease-out;
}
.text-link:hover span {
  transform: translateX(4px);
}
.editor-promo-image {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  box-shadow: 10px 12px 0 var(--cp-accent-soft);
  display: block;
  overflow: hidden;
}
.editor-promo-image img {
  display: block;
  height: auto;
  width: 100%;
}
.cli-spotlight {
  align-items: center;
  border-bottom: 1px solid var(--cp-border-strong);
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  padding: 64px 0;
}
.cli-spotlight-copy h2 {
  max-width: 11ch;
}
.cli-spotlight-copy p {
  color: var(--cp-text-muted);
  font-size: 18px;
  margin: 18px 0 20px;
  max-width: 46ch;
}
.cli-spotlight-terminal {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border-strong);
  box-shadow: 10px 12px 0 var(--cp-accent-soft);
  min-width: 0;
  overflow: hidden;
}
.cli-spotlight-terminal .panel-header {
  gap: 16px;
}
.cli-spotlight-terminal pre {
  font-size: 14px;
}

.editor-hero {
  align-items: end;
  display: grid;
  gap: 40px;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.42fr);
}
.editor-hero h1 {
  max-width: 11ch;
}
.editor-hero-copy .lead {
  max-width: 720px;
}
.editor-hero-note {
  border-top: 1px solid var(--cp-border-strong);
  display: grid;
  gap: 10px;
  padding-top: 16px;
}
.editor-hero-note span {
  color: var(--cp-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.editor-hero-note strong {
  font-size: 18px;
}
.editor-atlas {
  margin: 0;
  position: relative;
}
.editor-atlas-frame {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border-strong);
  box-shadow: 14px 16px 0 var(--cp-accent-soft);
  overflow: hidden;
}
.editor-atlas-frame img {
  display: block;
  height: auto;
  width: 100%;
}
.editor-callouts {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 1px;
}
.editor-callout {
  background: var(--cp-surface);
  border-top: 1px solid var(--cp-border-strong);
  color: var(--cp-text-muted);
  min-height: 112px;
  padding: 18px 22px;
}
.editor-callout + .editor-callout {
  border-left: 1px solid var(--cp-border);
}
.editor-callout strong {
  color: var(--cp-text);
  display: block;
  margin-bottom: 5px;
}
.editor-feature-ledger {
  display: grid;
  gap: 64px;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
  padding: 112px 0;
}
.editor-section-heading {
  align-self: start;
  position: sticky;
  top: 32px;
}
.editor-section-heading h2 {
  max-width: 11ch;
}
.editor-section-heading p {
  color: var(--cp-text-muted);
  font-size: 18px;
  max-width: 38ch;
}
.feature-ledger {
  border-top: 1px solid var(--cp-border-strong);
}
.feature-ledger article {
  align-items: baseline;
  border-bottom: 1px solid var(--cp-border);
  display: grid;
  gap: 18px;
  grid-template-columns: 34px minmax(150px, 0.55fr) minmax(0, 1fr);
  padding: 26px 0;
}
.feature-ledger article > span {
  color: var(--cp-accent);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 13px;
}
.feature-ledger p {
  color: var(--cp-text-muted);
  margin: 0;
}
.editor-copilot {
  align-items: center;
  border-bottom: 1px solid var(--cp-border-strong);
  border-top: 1px solid var(--cp-border-strong);
  display: grid;
  gap: 64px;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  padding: 72px 0;
}
.editor-copilot-image {
  background: #a5a9ad;
  border: 1px solid var(--cp-border-strong);
  box-shadow: 10px 12px 0 var(--cp-accent-soft);
  overflow: hidden;
}
.editor-copilot-image img {
  display: block;
  height: auto;
  width: 100%;
}
.editor-copilot-copy h2 {
  max-width: 11ch;
}
.editor-copilot-copy > p {
  color: var(--cp-text-muted);
  font-size: 18px;
  margin: 18px 0 0;
}
.editor-facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}
.editor-facts li {
  border-top: 1px solid var(--cp-border);
  padding: 12px 0 12px 26px;
  position: relative;
}
.editor-facts li::before {
  color: var(--cp-success);
  content: "✓";
  left: 0;
  position: absolute;
}
.editor-cli {
  display: grid;
  gap: 64px;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
  padding: 112px 0;
}
.editor-cli .editor-section-heading .text-link {
  display: inline-block;
  margin-top: 14px;
}
.editor-cli-workflow {
  min-width: 0;
}
.cli-steps {
  border-top: 1px solid var(--cp-border-strong);
  list-style: none;
  margin: 0;
  padding: 0;
}
.cli-steps li {
  align-items: start;
  border-bottom: 1px solid var(--cp-border);
  display: grid;
  gap: 18px;
  grid-template-columns: 28px minmax(0, 1fr);
  padding: 20px 0;
}
.cli-steps li > span {
  color: var(--cp-accent);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 13px;
  padding-top: 2px;
}
.cli-steps li div {
  display: grid;
  gap: 5px;
}
.cli-steps small {
  color: var(--cp-text-muted);
  font-size: 15px;
}
.cli-command-set {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}
.cli-command-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.cli-command-grid > * {
  min-width: 0;
}
.cli-command-set pre {
  font-size: 13px;
}
.cli-platform-note {
  color: var(--cp-text-muted);
  margin: 4px 0 0;
}
.editor-open {
  padding: 104px 0 96px;
}
.editor-open > div:first-child {
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 1.2fr);
}
.editor-open > div:first-child p {
  color: var(--cp-text-muted);
  font-size: 18px;
  margin: 0;
}
.open-steps {
  border-bottom: 1px solid var(--cp-border-strong);
  border-top: 1px solid var(--cp-border-strong);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
}
.open-steps li {
  display: grid;
  gap: 8px;
  padding: 24px;
}
.open-steps li + li {
  border-left: 1px solid var(--cp-border);
}
.open-steps span {
  color: var(--cp-accent);
  font-family: Consolas, "Courier New", Courier, monospace;
  font-size: 13px;
}
.open-steps small {
  color: var(--cp-text-muted);
  font-size: 15px;
}

/* Real-world validation report */
.report-hero h1 {
  max-width: 13ch;
}
.evidence-line {
  border-bottom: 1px solid var(--cp-border-strong);
  border-top: 1px solid var(--cp-border-strong);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.evidence-line span {
  color: var(--cp-text-muted);
  padding: 18px 16px;
}
.evidence-line span + span {
  border-left: 1px solid var(--cp-border);
}
.evidence-line strong {
  color: var(--cp-text);
  display: block;
  font-size: 24px;
}
.report-section {
  padding: 64px 0;
}
.report-section + .report-section {
  border-top: 1px solid var(--cp-border);
}
.report-index {
  align-items: center;
  border-bottom: 1px solid var(--cp-border);
  border-top: 1px solid var(--cp-border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
  padding: 14px 0;
}
.report-index strong {
  margin-right: 4px;
}
.report-index a {
  border: 1px solid var(--cp-border);
  border-radius: 999px;
  color: var(--cp-text);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 10px;
  text-decoration: none;
}
.report-index a:hover {
  background: var(--cp-surface-soft);
  border-color: var(--cp-border-strong);
}
.report-intro h2 {
  max-width: 18ch;
}
.report-columns {
  column-gap: 48px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 28px;
}
.report-columns p,
.diagnosis p,
.limits p,
.report-cta p {
  color: var(--cp-text-muted);
  font-size: 18px;
  margin: 0;
}
.report-columns p + p,
.limits p + p {
  margin-top: 0;
}
.result-groups {
  border-top: 1px solid var(--cp-border);
  margin-top: 32px;
}
.result-group {
  border-bottom: 1px solid var(--cp-border);
  padding: 28px 0;
}
.result-group-attention {
  background: var(--cp-warning-soft);
  border: 1px solid var(--cp-warning);
  border-radius: 12px;
  margin: 20px -16px 0;
  padding: 28px 16px;
}
.result-heading {
  align-items: start;
  display: flex;
  gap: 24px;
  justify-content: space-between;
}
.result-heading p {
  color: var(--cp-text-muted);
  margin: 8px 0 0;
}
.status {
  border: 1px solid currentColor;
  border-radius: 999px;
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 700;
  padding: 5px 10px;
}
.status-pass {
  color: var(--cp-success);
}
.status-mixed {
  color: var(--cp-warning);
}
.result-actions {
  align-items: flex-end;
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  gap: 8px;
}
.schema-link {
  font-size: 14px;
  font-weight: 600;
}
.source-list {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}
.source-list li {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding: 9px 0;
}
.source-list li + li {
  border-top: 1px solid var(--cp-border);
}
.source-meta {
  align-items: center;
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
}
.source-meta > code {
  color: var(--cp-text-muted);
  font-size: 13px;
}
.file-result {
  align-items: center;
  border: 1px solid currentColor;
  border-radius: 999px;
  display: inline-flex;
  font-size: 12px;
  font-weight: 700;
  gap: 5px;
  padding: 3px 8px;
}
.file-result-valid {
  color: var(--cp-success);
}
.file-result-failed {
  color: var(--cp-warning);
}
.file-result code {
  color: inherit;
  font-size: inherit;
}
.diagnosis {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
}
.diagnosis h2 {
  max-width: 16ch;
}
.diagnosis > div > p {
  margin-top: 16px;
}
.diagnostic-output {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 12px;
  display: grid;
  gap: 10px;
  padding: 20px;
}
.diagnostic-output code {
  overflow-wrap: anywhere;
}
.diagnosis .diagnosis-note {
  grid-column: 1 / -1;
}
.method-list {
  counter-reset: method;
  list-style: none;
  margin: 32px 0;
  padding: 0;
}
.method-list li {
  align-items: baseline;
  border-top: 1px solid var(--cp-border);
  counter-increment: method;
  display: grid;
  gap: 16px;
  grid-template-columns: 24px minmax(220px, 0.8fr) minmax(0, 1.2fr);
  padding: 18px 0;
}
.method-list li::before {
  color: var(--cp-accent);
  content: counter(method) ".";
  font-weight: 700;
}
.method-list span {
  color: var(--cp-text-muted);
}
.command-block {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 12px;
  overflow: hidden;
}
.command-block .panel-header {
  gap: 16px;
  justify-content: space-between;
}
.copy-button {
  background: transparent;
  border: 1px solid var(--cp-border-strong);
  border-radius: 8px;
  color: var(--cp-text);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 10px;
}
.copy-button:hover {
  background: var(--cp-surface-soft);
}
.copy-button:focus-visible {
  outline: 3px solid var(--cp-link);
  outline-offset: 2px;
}
.limits {
  display: grid;
  gap: 32px 48px;
  grid-template-columns: 1fr 1fr;
}
.limits h2 {
  grid-column: 1 / -1;
  max-width: 18ch;
}
.report-cta {
  border-top: 1px solid var(--cp-border-strong);
  padding: 64px 0 72px;
}
.report-cta h2 {
  max-width: 20ch;
}
.report-cta p {
  margin-top: 16px;
  max-width: 64ch;
}
@media (max-width: 840px) {
  header,
  .hero {
    display: block;
  }
  nav {
    justify-content: flex-start;
    margin-top: 16px;
  }
  :is(.hero, .editor-hero, .report-hero) {
    padding-top: 32px;
  }
  .panel {
    margin-top: 28px;
  }
  .grid,
  .tour-step,
  .tour-examples,
  .implementations,
  .spec-list {
    grid-template-columns: 1fr;
  }
  .proof-band,
  .result-heading {
    align-items: flex-start;
    flex-direction: column;
  }
  .result-actions {
    align-items: flex-start;
  }
  .evidence-line {
    grid-template-columns: repeat(2, 1fr);
  }
  .evidence-line span:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--cp-border);
  }
  .evidence-line span:nth-child(4) {
    border-top: 1px solid var(--cp-border);
  }
  .report-columns,
  .diagnosis,
  .limits {
    grid-template-columns: 1fr;
  }
  .method-list li {
    grid-template-columns: 24px 1fr;
  }
  .method-list span {
    grid-column: 2;
  }
  .report-columns p + p,
  .limits p + p {
    margin-top: 20px;
  }
  .source-list li {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .source-meta {
    align-items: flex-start;
    flex-direction: column;
  }
  .editor-promo,
  .cli-spotlight,
  .editor-hero,
  .editor-feature-ledger,
  .editor-copilot,
  .editor-cli,
  .editor-open > div:first-child {
    grid-template-columns: 1fr;
  }
  .editor-promo {
    gap: 28px;
  }
  .editor-hero-note {
    max-width: 420px;
  }
  .editor-callouts,
  .open-steps {
    grid-template-columns: 1fr;
  }
  .editor-callout + .editor-callout,
  .open-steps li + li {
    border-left: 0;
    border-top: 1px solid var(--cp-border);
  }
  .editor-feature-ledger {
    gap: 36px;
    padding: 80px 0;
  }
  .editor-cli {
    gap: 36px;
    padding: 80px 0;
  }
  .editor-section-heading {
    position: static;
  }
  .feature-ledger article {
    grid-template-columns: 30px 1fr;
  }
  .feature-ledger article p {
    grid-column: 2;
  }
  .editor-copilot {
    gap: 36px;
  }
  .cli-command-grid {
    grid-template-columns: 1fr;
  }
  .editor-open > div:first-child {
    gap: 18px;
  }
}

@media (max-width: 560px) {
  .page {
    padding-left: max(18px, env(safe-area-inset-left));
    padding-right: max(18px, env(safe-area-inset-right));
  }
  nav {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
  }
  nav a {
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding-inline: 8px;
    text-align: center;
  }
  :is(.hero, .editor-hero, .report-hero) .actions {
    align-items: stretch;
    flex-direction: column;
  }
  :is(.hero, .editor-hero, .report-hero) .actions a {
    justify-content: center;
    min-height: 44px;
    width: 100%;
  }
  .tour-step,
  .tour-examples,
  .tour-examples > div,
  .tour-step pre {
    max-width: 100%;
  }
  .report-index {
    align-items: flex-start;
    flex-wrap: nowrap;
    margin-inline: -18px;
    overflow-x: auto;
    padding-inline: 18px;
    scrollbar-width: none;
  }
  .report-index::-webkit-scrollbar {
    display: none;
  }
  .report-index strong,
  .report-index a {
    flex: 0 0 auto;
  }
  .result-group-attention {
    margin-inline: -8px;
    padding-inline: 8px;
  }
  .brand-logo {
    height: 40px;
    width: 176px;
  }
  .editor-atlas-frame,
  .editor-promo-image,
  .cli-spotlight-terminal,
  .editor-copilot-image {
    box-shadow: 6px 7px 0 var(--cp-accent-soft);
  }
  .editor-atlas-frame {
    overflow-x: auto;
  }
  .editor-atlas-frame img {
    min-width: 760px;
  }
  .editor-callout {
    min-height: 0;
  }
  .editor-copilot,
  .editor-open {
    padding-block: 64px;
  }
}

@media (max-width: 420px) {
  nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .text-link span {
    transition: none;
  }
}

.not-found {
  align-items: center;
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 16px;
  box-shadow: var(--cp-shadow);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: min(620px, 70vh);
  padding: 64px 24px;
  text-align: center;
}
.not-found p {
  color: var(--cp-text-muted);
  margin: 16px 0 0;
}
.not-found a {
  font-weight: 600;
}

/* Rendered specification page (docs/spec/) */
.markdown {
  max-width: 820px;
  margin: 8px auto 0;
}
.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4,
.markdown h5,
.markdown h6 {
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 1.8em 0 0.6em;
  scroll-margin-top: 24px;
}
.markdown > h1:first-child {
  margin-top: 8px;
}
.markdown h1 {
  font-size: clamp(32px, 5vw, 46px);
  letter-spacing: -0.04em;
}
.markdown h2 {
  border-bottom: 1px solid var(--cp-border);
  font-size: 30px;
  padding-bottom: 0.3em;
}
.markdown h3 {
  font-size: 23px;
}
.markdown h4 {
  font-size: 19px;
}
.markdown h5,
.markdown h6 {
  font-size: 16px;
}
.markdown p,
.markdown li {
  font-size: 17px;
}
.markdown p {
  margin: 0 0 1em;
}
.markdown ul,
.markdown ol {
  margin: 0 0 1em;
  padding-left: 1.6em;
}
.markdown li {
  margin: 0.3em 0;
}
.markdown a {
  color: var(--cp-link);
}
.markdown code {
  background: var(--cp-surface-soft);
  border: 1px solid var(--cp-border);
  border-radius: 6px;
  font-size: 0.88em;
  padding: 0.12em 0.4em;
}
.markdown pre {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 12px;
  box-shadow: var(--cp-shadow);
  margin: 0 0 1.4em;
  overflow-x: auto;
  padding: 16px 18px;
}
.markdown pre code {
  background: none;
  border: 0;
  font-size: 14px;
  padding: 0;
}
.markdown blockquote {
  border-left: 1px solid var(--cp-accent);
  color: var(--cp-text-muted);
  margin: 0 0 1em;
  padding: 0.2em 0 0.2em 1em;
}
.markdown table {
  border-collapse: collapse;
  display: block;
  margin: 0 0 1.4em;
  overflow-x: auto;
  width: 100%;
}
.markdown th,
.markdown td {
  border: 1px solid var(--cp-border);
  padding: 8px 12px;
  text-align: left;
}
.markdown th {
  background: var(--cp-surface-soft);
  font-weight: 700;
}
.markdown hr {
  border: 0;
  border-top: 1px solid var(--cp-border);
  margin: 2em 0;
}
.markdown img {
  max-width: 100%;
}
.markdown .anchor {
  color: var(--cp-text-soft);
  float: left;
  margin-left: -0.85em;
  opacity: 0;
  padding-right: 0.25em;
  text-decoration: none;
  transition: opacity 0.15s ease;
}
.markdown h1:hover .anchor,
.markdown h2:hover .anchor,
.markdown h3:hover .anchor,
.markdown h4:hover .anchor,
.markdown h5:hover .anchor,
.markdown h6:hover .anchor {
  opacity: 1;
}