:root {
  color-scheme: light;
  --color-ink: #0b1724;
  --color-ink-soft: #142638;
  --color-paper: #eef1ef;
  --color-surface: #f9faf7;
  --color-tint: #dfe6e2;
  --color-copper: #c76a32;
  --color-copper-dark: #8d431f;
  --color-copper-light: #f2b286;
  --color-muted: #59666d;
  --color-line: #bac4c4;
  --color-line-dark: #435465;
  --color-success: #2f7969;
  --color-warning: #8a6421;
  --color-warning-soft: #fff0c7;
  --font-display: "Aptos Display", "Segoe UI Variable Display", "Franklin Gothic Medium", sans-serif;
  --font-text: Aptos, "Segoe UI Variable Text", "Segoe UI", sans-serif;
  --font-label: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --step--1: clamp(0.75rem, 0.72rem + 0.12vw, 0.83rem);
  --step-0: clamp(1rem, 0.96rem + 0.17vw, 1.11rem);
  --step-1: clamp(1.25rem, 1.12rem + 0.54vw, 1.62rem);
  --step-2: clamp(1.7rem, 1.4rem + 1.25vw, 2.55rem);
  --step-3: clamp(2.4rem, 1.82rem + 2.55vw, 4.15rem);
  --step-4: clamp(3.2rem, 2rem + 5.25vw, 6.8rem);
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: clamp(5.5rem, 10vw, 9rem);
  --content: 80rem;
  --reading: 68ch;
  --gutter: clamp(1rem, 4vw, 2.5rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-text);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--color-copper);
  color: var(--color-surface);
}

main {
  overflow: clip;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-copper-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-ink);
}

:focus-visible {
  outline: 3px solid var(--color-copper);
  outline-offset: 4px;
}

button,
input,
select,
textarea {
  font: inherit;
}

h1,
h2,
h3 {
  margin-block: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
  text-wrap: balance;
}

h1 {
  font-size: var(--step-4);
}

h2 {
  font-size: var(--step-3);
}

h3 {
  font-size: var(--step-1);
  letter-spacing: -0.025em;
  line-height: 1.14;
}

p,
ul,
ol,
dl,
figure {
  margin-block: 0;
}

.container {
  width: min(calc(100% - (2 * var(--gutter))), var(--content));
  margin-inline: auto;
}

.flow > * + * {
  margin-block-start: var(--flow-space, 1rem);
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  transform: translateY(-180%);
  background: var(--color-copper);
  color: var(--color-ink);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.eyebrow,
.section-label,
.page-index,
.comparison-mode,
.profile-name,
.cta-code,
.not-found-code {
  font-family: var(--font-label);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.075em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-copper-dark);
}

.eyebrow::before {
  width: 0.7rem;
  height: 0.7rem;
  flex: 0 0 auto;
  border: 2px solid currentColor;
  content: "";
}

.site-header {
  position: relative;
  z-index: 50;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}

.operations-bar {
  background: var(--color-ink);
  color: #c9d1d1;
  font-family: var(--font-label);
  font-size: 0.65rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.operations-bar .container {
  display: flex;
  min-height: 2.2rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.operations-bar span:first-child {
  color: var(--color-copper-light);
}

.operations-bar span:last-child {
  display: none;
}

.header-main {
  display: flex;
  min-height: 5.3rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.075em;
  line-height: 1;
  text-decoration: none;
}

.wordmark span,
.wordmark b {
  color: var(--color-copper);
  font-weight: inherit;
}

.wordmark span {
  margin-inline: 0.02em;
}

.desktop-nav {
  display: none;
}

.desktop-nav ul,
.mobile-nav ul,
.footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.desktop-nav a:not(.button) {
  padding-block: 0.45rem;
  border-bottom: 2px solid transparent;
  color: var(--color-ink);
  font-family: var(--font-label);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.desktop-nav a:not(.button):hover,
.desktop-nav a[aria-current="page"] {
  border-color: var(--color-copper);
  color: var(--color-copper-dark);
}

.mobile-nav {
  position: relative;
}

.mobile-nav summary {
  display: inline-flex;
  min-height: 2.8rem;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0;
  border-bottom: 2px solid var(--color-ink);
  cursor: pointer;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.055em;
  list-style: none;
  text-transform: uppercase;
}

.mobile-nav summary::-webkit-details-marker {
  display: none;
}

.mobile-nav summary span {
  color: var(--color-copper-dark);
  font-size: 1.2rem;
}

.mobile-nav[open] summary span {
  transform: rotate(45deg);
}

.mobile-nav > nav {
  position: absolute;
  top: calc(100% + 1rem);
  right: 0;
  width: min(23rem, calc(100vw - 2rem));
  padding: 1rem;
  border: 1px solid var(--color-ink);
  background: var(--color-surface);
  box-shadow: 0.6rem 0.6rem 0 var(--color-copper);
}

.mobile-nav ul {
  border-top: 1px solid var(--color-line);
}

.mobile-nav li a {
  display: block;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-ink);
  font-weight: 700;
  text-decoration: none;
}

.mobile-nav a[aria-current="page"] {
  color: var(--color-copper-dark);
}

.mobile-nav .button {
  width: 100%;
  margin-top: 1rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  min-height: 3.15rem;
  align-items: stretch;
  justify-content: center;
  border: 1px solid var(--color-ink);
  background: var(--color-ink);
  color: var(--color-surface);
  font-family: var(--font-label);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.button > span:first-child {
  display: grid;
  place-items: center;
  padding: 0.8rem 1rem;
}

.button-arrow {
  display: grid;
  min-width: 2.8rem;
  place-items: center;
  border-left: 1px solid currentColor;
  font-size: 1.15em;
}

.button:hover {
  border-color: var(--color-copper);
  background: var(--color-copper);
  color: var(--color-ink);
}

.button--secondary {
  background: transparent;
  color: var(--color-ink);
}

.breadcrumb {
  padding-block: 0.8rem;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-paper);
  font-family: var(--font-label);
  font-size: var(--step--1);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li:not(:last-child)::after {
  margin-left: 0.5rem;
  color: var(--color-copper-dark);
  content: "/";
}

.breadcrumb a {
  color: var(--color-muted);
}

.hero {
  position: relative;
  padding-block: clamp(4.5rem, 9vw, 8rem) var(--space-8);
  background-color: var(--color-ink);
  background-image:
    linear-gradient(rgb(255 255 255 / 4%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 4%) 1px, transparent 1px);
  background-size: 4rem 4rem;
  color: var(--color-surface);
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 30%;
  height: 0.45rem;
  background: var(--color-copper);
  content: "";
}

.hero-grid {
  display: grid;
  gap: var(--space-7);
}

.hero-copy {
  --flow-space: 1.55rem;
}

.hero .eyebrow,
.page-hero .eyebrow,
.section--dark .eyebrow {
  color: var(--color-copper-light);
}

.hero h1 {
  max-width: 12ch;
}

.hero h1 span {
  display: block;
  color: var(--color-copper-light);
}

.hero-intro,
.page-intro {
  max-width: 62ch;
  font-size: var(--step-1);
  line-height: 1.52;
}

.hero-intro {
  color: #c6d0d2;
}

.hero .button {
  border-color: var(--color-copper);
  background: var(--color-copper);
  color: var(--color-ink);
}

.hero .button:hover {
  border-color: var(--color-surface);
  background: var(--color-surface);
}

.hero .button--secondary {
  border-color: #6c7b88;
  background: transparent;
  color: var(--color-surface);
}

.trust-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-line-dark);
  list-style: none;
}

.trust-list li {
  display: grid;
  gap: 0.15rem;
  padding-block: 0.85rem;
  border-bottom: 1px solid var(--color-line-dark);
}

.trust-list strong {
  color: var(--color-surface);
  font-size: 0.92rem;
}

.trust-list span {
  color: #96a7b1;
  font-size: 0.8rem;
}

.system-map {
  align-self: end;
  border-top: 4px solid var(--color-copper);
  border-bottom: 1px solid #607080;
  background: rgb(20 38 56 / 72%);
}

.system-map figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem;
  border-bottom: 1px solid #607080;
  color: #aebbc1;
  font-family: var(--font-label);
  font-size: 0.65rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.system-map figcaption span:first-child {
  color: var(--color-copper-light);
}

.system-map-grid {
  position: relative;
  display: grid;
  gap: 0.75rem;
  padding: 1.25rem;
}

.system-map-grid::before {
  position: absolute;
  top: 1.25rem;
  bottom: 1.25rem;
  left: 2rem;
  width: 1px;
  background: #607080;
  content: "";
}

.system-node {
  position: relative;
  z-index: 1;
  display: grid;
  padding: 0.8rem 0.8rem 0.8rem 2.2rem;
  border: 1px solid #607080;
  background: var(--color-ink-soft);
}

.system-node::before {
  position: absolute;
  top: 1.05rem;
  left: 0.62rem;
  width: 0.5rem;
  height: 0.5rem;
  border: 2px solid var(--color-copper-light);
  background: var(--color-ink-soft);
  content: "";
}

.system-node small {
  color: #8fa0aa;
  font-family: var(--font-label);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.system-node strong {
  color: var(--color-surface);
  font-size: 0.95rem;
}

.system-node span {
  color: #9aabb3;
  font-size: 0.75rem;
}

.system-node--core {
  border-color: var(--color-copper);
  background: #1d3346;
}

.system-map > p {
  padding: 0.8rem 1.25rem;
  border-top: 1px solid #607080;
  color: #aebbc1;
  font-size: 0.78rem;
}

.section {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-line);
}

.section--light {
  background: var(--color-surface);
}

.section--tint {
  background: var(--color-tint);
}

.section--dark {
  background: var(--color-ink);
  color: var(--color-surface);
}

.section-layout {
  display: grid;
  gap: var(--space-6);
}

.section-header {
  position: relative;
  max-width: 56rem;
  padding-top: 1rem;
  border-top: 4px solid var(--color-ink);
  --flow-space: 1.1rem;
}

.section-header::before {
  position: absolute;
  top: -4px;
  right: 0;
  width: min(28%, 7rem);
  height: 4px;
  background: var(--color-copper);
  content: "";
}

.section--dark .section-header {
  border-color: var(--color-surface);
}

.section-label {
  color: var(--color-copper-dark);
}

.section--dark .section-label {
  color: var(--color-copper-light);
}

.section-header h2 {
  max-width: 14ch;
}

.section-intro {
  max-width: var(--reading);
  color: var(--color-muted);
}

.section--dark .section-intro {
  color: #aebbc1;
}

.section-content > * + * {
  margin-top: var(--space-5);
}

.record-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-ink);
  border-right: 1px solid var(--color-line);
}

.record {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2rem);
  border-bottom: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
  --flow-space: 0.9rem;
}

.record p {
  color: var(--color-muted);
}

.record-number {
  display: block;
  margin-bottom: var(--space-5);
  color: var(--color-copper-dark);
  font-family: var(--font-label);
  font-size: 0.73rem;
  font-weight: 700;
}

.record-number::before {
  display: inline-block;
  width: 1.8rem;
  height: 2px;
  margin-right: 0.5rem;
  vertical-align: middle;
  background: var(--color-copper);
  content: "";
}

.section--dark .record-grid {
  border-top-color: var(--color-surface);
  border-right-color: var(--color-line-dark);
}

.section--dark .record {
  border-color: var(--color-line-dark);
}

.section--dark .record p {
  color: #aebbc1;
}

.section--dark .record-number,
.section--dark .text-link {
  color: var(--color-copper-light);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding-bottom: 0.12rem;
  border-bottom: 1px solid currentColor;
  color: var(--color-copper-dark);
  font-weight: 750;
  text-decoration: none;
}

.section-note {
  max-width: var(--reading);
  padding: 1rem 0 1rem 1.25rem;
  border-left: 4px solid var(--color-copper);
  color: var(--color-muted);
  font-weight: 650;
}

.section--dark .section-note {
  color: #c6d0d2;
}

.process-list {
  margin: 0;
  padding: 0;
  border-top: 4px solid var(--color-ink);
  list-style: none;
  counter-reset: process;
}

.process-list li {
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: 0.4rem 1rem;
  padding-block: 1.35rem;
  border-bottom: 1px solid var(--color-line);
  counter-increment: process;
}

.process-list li::before {
  grid-row: 1 / span 2;
  color: var(--color-copper-dark);
  content: counter(process, decimal-leading-zero);
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 700;
}

.process-list p {
  color: var(--color-muted);
}

.section--dark .process-list {
  border-color: var(--color-surface);
}

.section--dark .process-list li {
  border-color: var(--color-line-dark);
}

.section--dark .process-list li::before {
  color: var(--color-copper-light);
}

.section--dark .process-list p {
  color: #aebbc1;
}

.technical-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 4px solid var(--color-ink);
  list-style: none;
}

.technical-list li {
  display: grid;
  grid-template-columns: 1rem 1fr;
  gap: 0.8rem;
  align-items: center;
  padding-block: 0.9rem;
  border-bottom: 1px solid var(--color-line);
}

.technical-list li > span {
  width: 0.65rem;
  height: 0.65rem;
  border: 2px solid var(--color-copper-dark);
}

.section--dark .technical-list {
  border-color: var(--color-surface);
}

.section--dark .technical-list li {
  border-color: var(--color-line-dark);
}

.section--dark .technical-list li > span {
  border-color: var(--color-copper-light);
}

.comparison-grid {
  display: grid;
  border-top: 4px solid var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
}

.comparison-column {
  padding: clamp(1.25rem, 3vw, 2.2rem);
  --flow-space: 1rem;
}

.comparison-column + .comparison-column {
  border-top: 1px solid var(--color-line);
}

.comparison-column:last-child {
  background: var(--color-ink);
  color: var(--color-surface);
}

.comparison-mode {
  color: var(--color-copper-dark);
}

.comparison-column:last-child .comparison-mode {
  color: var(--color-copper-light);
}

.comparison-column ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.comparison-column li {
  padding-block: 0.55rem;
  border-bottom: 1px solid var(--color-line);
}

.comparison-column:last-child li {
  border-color: var(--color-line-dark);
  color: #c9d1d1;
}

.faq-list {
  border-top: 4px solid var(--color-ink);
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-item summary {
  display: grid;
  grid-template-columns: 2.5rem 1fr 2rem;
  gap: 0.75rem;
  align-items: center;
  padding-block: 1.2rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 0.98rem + 0.35vw, 1.3rem);
  font-weight: 700;
  line-height: 1.25;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary span {
  color: var(--color-copper-dark);
  font-family: var(--font-label);
  font-size: 0.72rem;
}

.faq-item summary::after {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid var(--color-ink);
  content: "+";
  font-family: var(--font-label);
  font-size: 0.9rem;
}

.faq-item[open] summary::after {
  background: var(--color-copper);
  content: "−";
}

.faq-answer {
  max-width: var(--reading);
  padding: 0 3rem 1.4rem 3.25rem;
  color: var(--color-muted);
}

.developer-profile {
  display: grid;
  gap: var(--space-5);
  padding-block: var(--space-5);
  border-top: 4px solid var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
}

.developer-copy {
  --flow-space: 1.1rem;
}

.developer-copy h3 {
  max-width: 18ch;
  font-size: var(--step-2);
}

.developer-copy > p:not(.profile-name) {
  color: var(--color-muted);
}

.profile-name {
  color: var(--color-copper-dark);
}

.reference-card {
  padding: 1.5rem;
  border: 1px solid var(--color-line);
}

.cta-section {
  position: relative;
  padding-block: var(--space-8);
  border-top: 0.5rem solid var(--color-copper);
  background: var(--color-ink);
  color: var(--color-surface);
}

.cta-section::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(42vw, 34rem);
  height: min(42vw, 34rem);
  border-top: 1px solid var(--color-line-dark);
  border-left: 1px solid var(--color-line-dark);
  background-image:
    linear-gradient(rgb(255 255 255 / 5%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 5%) 1px, transparent 1px);
  background-size: 3rem 3rem;
  content: "";
}

.cta-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-5);
}

.cta-code {
  color: var(--color-copper-light);
}

.cta-section h2 {
  max-width: 14ch;
}

.cta-section p {
  max-width: var(--reading);
  color: #c6d0d2;
}

.cta-section .button {
  border-color: var(--color-copper);
  background: var(--color-copper);
  color: var(--color-ink);
}

.cta-section .button--secondary {
  border-color: #72818d;
  background: transparent;
  color: var(--color-surface);
}

.page-hero {
  padding-block: clamp(4.5rem, 9vw, 8rem) var(--space-7);
  background: var(--color-ink);
  color: var(--color-surface);
}

.page-hero-grid {
  display: grid;
  gap: var(--space-5);
}

.page-hero h1 {
  max-width: 17ch;
}

.page-intro {
  color: #c6d0d2;
}

.page-index {
  align-self: end;
  justify-self: start;
  padding: 0.8rem 0;
  border-top: 1px solid var(--color-line-dark);
  border-bottom: 1px solid var(--color-line-dark);
  color: var(--color-copper-light);
}

.prose {
  max-width: var(--reading);
}

.prose > * + * {
  margin-top: 1.25rem;
}

.prose > section {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-line);
}

.prose h2 {
  margin-top: var(--space-6);
}

.prose h3 {
  margin-bottom: 0.7rem;
}

.prose p,
.prose li {
  color: var(--color-muted);
}

.contact-layout,
.legal-layout {
  display: grid;
  gap: var(--space-6);
}

.contact-context,
.contact-form-wrap {
  padding-top: 1.25rem;
  border-top: 4px solid var(--color-ink);
}

.contact-context h2,
.contact-form-wrap h2 {
  font-size: var(--step-2);
}

.contact-context > p:not(.section-label) {
  color: var(--color-muted);
}

.contact-data {
  border-top: 1px solid var(--color-line);
}

.contact-data div {
  display: grid;
  grid-template-columns: minmax(7rem, 0.7fr) minmax(0, 1fr);
  gap: 1rem;
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--color-line);
}

.contact-data dt {
  color: var(--color-muted);
  font-size: var(--step--1);
}

.contact-data dd {
  margin: 0;
  font-weight: 700;
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.form-field {
  display: grid;
  gap: 0.35rem;
}

.form-field label,
.checkbox-field label {
  font-size: 0.92rem;
  font-weight: 700;
}

.form-field label span {
  color: var(--color-muted);
  font-size: var(--step--1);
  font-weight: 400;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.8rem 0.85rem;
  border: 1px solid #7e8a8e;
  border-radius: 0;
  background: var(--color-surface);
  color: var(--color-ink);
}

.form-field textarea {
  min-height: 11rem;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-copper-dark);
  outline: 2px solid var(--color-copper-dark);
  outline-offset: 2px;
}

.checkbox-field {
  display: grid;
  grid-template-columns: 1.3rem 1fr;
  gap: 0.65rem;
  align-items: start;
}

.checkbox-field input {
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.2rem;
  accent-color: var(--color-copper-dark);
}

.form-submit {
  cursor: pointer;
}

.form-submit:disabled,
.form-field :disabled {
  border-color: var(--color-line);
  background: #dfe2de;
  color: var(--color-muted);
  cursor: not-allowed;
  opacity: 1;
}

.config-notice,
.legal-notice {
  padding: 1rem 1rem 1rem 1.25rem;
  border-left: 4px solid var(--color-warning);
  background: var(--color-warning-soft);
  color: #5e4615;
}

.config-notice strong,
.legal-notice strong {
  display: block;
}

.legal-layout .legal-notice {
  align-self: start;
}

.site-footer {
  padding-block: var(--space-8) var(--space-4);
  border-top: 1px solid var(--color-line-dark);
  background: var(--color-ink);
  color: #d7dfe0;
}

.footer-grid {
  display: grid;
  gap: var(--space-5);
}

.footer-brand .wordmark {
  color: var(--color-surface);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
}

.footer-brand p {
  max-width: 31rem;
  color: #a8b5bb;
}

.footer-group {
  padding-top: 1rem;
  border-top: 1px solid var(--color-line-dark);
}

.footer-group h2 {
  margin-bottom: 0.9rem;
  color: var(--color-copper-light);
  font-family: var(--font-label);
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  gap: 0.5rem;
}

.footer-links a {
  color: #d7dfe0;
  font-size: 0.92rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin-top: var(--space-7);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-line-dark);
  color: #9eabb1;
  font-family: var(--font-label);
  font-size: var(--step--1);
}

.footer-bottom nav {
  display: flex;
  gap: 1rem;
}

.footer-bottom a {
  color: #d7dfe0;
}

.not-found {
  min-height: 72vh;
  padding-block: var(--space-8);
  background: var(--color-ink);
  color: var(--color-surface);
}

.not-found-grid {
  display: grid;
  gap: var(--space-5);
}

.not-found-code {
  color: var(--color-copper-light);
}

.not-found h1 {
  max-width: 15ch;
}

.not-found .button {
  border-color: var(--color-copper);
  background: var(--color-copper);
  color: var(--color-ink);
}

@media (min-width: 40rem) {
  .operations-bar span:last-child {
    display: inline;
  }

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

  .trust-list li:nth-child(even) {
    padding-left: 1rem;
    border-left: 1px solid var(--color-line-dark);
  }

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

  .system-map-grid::before {
    display: none;
  }

  .system-node {
    padding-left: 2.2rem;
  }

  .system-node--core {
    grid-column: 1 / -1;
  }

  .record-grid--2,
  .record-grid--3,
  .record-grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .comparison-column + .comparison-column {
    border-top: 0;
    border-left: 1px solid var(--color-line);
  }

  .page-hero-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

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

  .form-field--full,
  .checkbox-field,
  .form-actions,
  .config-notice {
    grid-column: 1 / -1;
  }
}

@media (min-width: 58rem) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.14fr) minmax(25rem, 0.86fr);
    align-items: end;
    gap: clamp(3rem, 7vw, 7rem);
  }

  .section-layout {
    grid-template-columns: minmax(17rem, 0.7fr) minmax(0, 1.3fr);
    align-items: start;
    gap: clamp(3rem, 7vw, 7rem);
  }

  .record-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .record-grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .process-list li {
    grid-template-columns: 3.5rem minmax(10rem, 0.55fr) minmax(0, 1fr);
    gap: 1.5rem;
    align-items: baseline;
  }

  .process-list li::before {
    grid-row: auto;
  }

  .technical-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-right: 1px solid var(--color-line);
  }

  .technical-list li {
    padding-inline: 1rem;
    border-left: 1px solid var(--color-line);
  }

  .developer-profile {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: var(--space-6);
  }

  .contact-layout,
  .legal-layout {
    grid-template-columns: minmax(18rem, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(3rem, 7vw, 7rem);
  }

  .cta-grid {
    grid-template-columns: 8rem minmax(0, 1fr) auto;
    align-items: end;
  }

  .footer-grid {
    grid-template-columns: minmax(18rem, 1.65fr) repeat(3, minmax(9rem, 1fr));
  }

  .not-found-grid {
    grid-template-columns: minmax(8rem, 0.3fr) minmax(0, 1fr);
  }
}

@media (min-width: 76rem) {
  .site-header {
    position: sticky;
    top: 0;
  }

  .desktop-nav {
    display: block;
  }

  .desktop-nav ul {
    display: flex;
    align-items: center;
    gap: clamp(0.65rem, 1.05vw, 1.1rem);
  }

  .desktop-nav .button {
    margin-left: 0.25rem;
  }

  .mobile-nav {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}