:root {
  color-scheme: light;

  /* Palette: cool ground, deep navy ink, indigo accent */
  --bg: oklch(0.995 0.002 260);
  --surface: oklch(0.975 0.006 260);
  --surface-2: oklch(0.945 0.011 260);

  --ink: oklch(0.12 0.018 260);
  --ink-soft: oklch(0.32 0.014 260);
  --muted: oklch(0.48 0.011 260);

  --line: oklch(0.88 0.012 260);
  --line-strong: oklch(0.74 0.018 260);

  --primary: oklch(0.42 0.142 270);
  --primary-strong: oklch(0.30 0.128 270);
  --primary-soft: oklch(0.93 0.030 270);
  --focus: oklch(0.55 0.160 270);

  --info: oklch(0.52 0.115 250);
  --warning: oklch(0.62 0.135 65);
  --success: oklch(0.52 0.115 150);

  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;

  --wrap: 1080px;
  --measure: 66ch;

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --space-3xs: 0.25rem;
  --space-2xs: 0.375rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.25rem;
  --space-2xl: clamp(2.5rem, 5.5vw, 4rem);
  --space-3xl: clamp(3.5rem, 8vw, 6rem);
  --space-4xl: clamp(5rem, 11vw, 8rem);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 180ms var(--ease-out);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  font-kerning: normal;
  font-optical-sizing: auto;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: color-mix(in oklch, var(--primary) 40%, transparent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.22em;
  transition: color var(--transition), text-decoration-color var(--transition);
}

a:hover {
  color: var(--primary-strong);
  text-decoration-color: var(--primary-strong);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2.5px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

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

ul,
ol {
  padding-left: 1.35rem;
}

li + li {
  margin-top: 0.5rem;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.05;
  text-wrap: balance;
}

h1 {
  max-width: 16ch;
  font-size: clamp(2.8rem, 1.2rem + 7vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.038em;
  line-height: 0.98;
  overflow-wrap: break-word;
}

h2 {
  font-size: clamp(1.9rem, 1.1rem + 2.8vw, 3rem);
  letter-spacing: -0.032em;
}

h3 {
  font-size: clamp(1.25rem, 1rem + 1.1vw, 1.55rem);
  letter-spacing: -0.02em;
}

p {
  text-wrap: pretty;
}

strong {
  font-weight: 700;
}

code {
  font-family: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-150%);
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--bg);
  padding: 0.7rem 1.05rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--transition);
}

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

.wrap,
.narrow-wrap {
  width: min(100% - 2.25rem, var(--wrap));
  margin-inline: auto;
}

.narrow-wrap {
  max-width: 780px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklch, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 750;
  font-size: 1.05rem;
  letter-spacing: -0.025em;
  min-width: 0;
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
  text-decoration: none;
}

.brand span {
  overflow-wrap: anywhere;
}

.brand img {
  width: 32px;
  height: 32px;
  flex: none;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 650;
  min-height: 44px;
  padding: 0.55rem 0.85rem;
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition);
}

.site-nav a:hover {
  color: var(--primary-strong);
  background: var(--primary-soft);
}

.site-nav a[aria-current="page"] {
  color: var(--primary-strong);
  background: var(--primary-soft);
}

.site-nav .nav-cta {
  margin-left: 0.35rem;
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: var(--bg);
  font-weight: 700;
  padding-inline: 1.1rem;
}

.site-nav .nav-cta:hover {
  background: var(--primary);
  color: var(--bg);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  min-height: 44px;
  padding: 0.55rem 0.95rem;
  transition: border-color var(--transition), color var(--transition), background-color var(--transition);
}

.nav-toggle:hover {
  border-color: var(--primary);
  color: var(--primary-strong);
  background: var(--primary-soft);
}

.hero {
  padding-block: var(--space-4xl) var(--space-3xl);
}

.page-hero {
  padding-block: var(--space-3xl) var(--space-2xl);
}

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

.hero-actions,
.link-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
}

.hero-actions {
  margin-top: var(--space-xl);
}

.lede {
  max-width: 58ch;
  margin: var(--space-md) 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.1rem, 0.2rem + 1.6vw, 1.4rem);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.text-measure {
  max-width: var(--measure);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
  color: var(--primary-strong);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: 1.25rem;
  height: 2px;
  background: var(--primary);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.2;
  min-height: 30px;
  padding: 0.32rem 0.75rem;
}

.status-pill[data-tone="required"] {
  border-color: color-mix(in oklch, var(--primary) 28%, var(--line));
  background: var(--primary-soft);
  color: var(--primary-strong);
}

.button-link,
.secondary-link,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  font-weight: 700;
  min-height: 48px;
  padding: 0.8rem 1.35rem;
  text-decoration: none;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.button-link {
  background: var(--primary);
  color: var(--bg);
}

.button-link:hover {
  background: var(--primary-strong);
  color: var(--bg);
}

.button-link:active {
  transform: translateY(1px);
}

.secondary-link {
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--ink);
}

.secondary-link:hover {
  border-color: var(--primary);
  color: var(--primary-strong);
  background: var(--primary-soft);
}

.text-link {
  color: var(--primary-strong);
  padding-inline: 0;
}

.text-link:hover {
  color: var(--primary);
}

.section {
  padding-block: var(--space-3xl);
}

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

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 0.6fr) minmax(260px, 0.4fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: end;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-header p {
  max-width: 54ch;
  margin: 0;
  color: var(--muted);
}

.panel,
.record-panel,
.info-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.review-panel,
.record-panel,
.info-panel {
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

.review-panel {
  background: var(--surface);
}

.review-panel h2,
.record-panel h2,
.info-panel h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.1rem, 1rem + 0.9vw, 1.35rem);
  letter-spacing: -0.02em;
}

.route-list,
.record-list,
.meta-list,
.check-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.route-list {
  border-top: 1px solid var(--line);
}

.route-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.25rem;
  align-items: center;
  margin: 0;
  border-bottom: 1px solid var(--line);
  padding: 1.25rem 0;
  transition: border-color var(--transition);
}

.route-list--plain .route-item {
  grid-template-columns: minmax(0, 1fr) auto;
}

.route-item > div {
  min-width: 0;
}

.route-item strong {
  display: block;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.25;
}

.route-item span {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.route-item code {
  display: inline-block;
  margin-bottom: 0.35rem;
  padding: 0.12rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.route-item a {
  justify-self: end;
  font-weight: 700;
  white-space: nowrap;
  text-decoration: none;
}

.route-item a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.route-list--plain .route-item code {
  display: none;
}

.record-list {
  gap: 0;
}

.record-list li {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  border-top: 1px solid var(--line);
  padding: 0.9rem 0;
}

.record-list li:first-child {
  border-top: none;
  padding-top: 0;
}

.record-list strong,
.check-list strong {
  display: block;
  color: var(--ink);
  font-weight: 650;
  line-height: 1.3;
}

.record-list span,
.check-list span {
  display: block;
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.meta-list {
  gap: 0.85rem;
}

.meta-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 1rem;
  margin: 0;
  color: var(--ink-soft);
}

.meta-list strong {
  flex: 0 0 8.5rem;
  color: var(--ink);
  font-weight: 650;
}

.meta-list span {
  flex: 1 1 12rem;
  min-width: 0;
  overflow-wrap: break-word;
}

.check-list {
  gap: 0;
}

.check-list li {
  margin: 0;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}

.check-list li:first-child {
  border-top: none;
  padding-top: 0;
}

.check-list li + li {
  margin-top: 0.85rem;
}

.dossier-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(280px, 0.34fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.app-summary {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 1.25rem;
  align-items: center;
  margin-top: 1.5rem;
}

.app-icon-large,
.app-identity img {
  border-radius: 22px;
  flex: none;
}

.app-icon-large {
  width: 96px;
  height: 96px;
}

.app-identity {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.app-identity img {
  width: 72px;
  height: 72px;
}

.app-identity h2 {
  margin: 0.35rem 0 0;
  font-size: clamp(1.45rem, 1rem + 1.5vw, 1.9rem);
}

.app-summary .lede {
  margin-top: 0;
}

.app-summary .status-pill {
  margin-top: 0.55rem;
}

.review-panel p {
  margin-top: 0.85rem;
  margin-bottom: 0;
}

.article {
  padding-block: var(--space-2xl) var(--space-4xl);
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.article-content {
  max-width: 760px;
}

.article-content h2 {
  margin-top: 3rem;
  margin-bottom: 1rem;
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem);
  letter-spacing: -0.03em;
}

.article-content h2:first-child,
.article-content > .notice + h2 {
  margin-top: 0;
}

.article-content h3 {
  margin-top: 1.9rem;
  margin-bottom: 0.6rem;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.article-content p,
.article-content li {
  color: var(--ink-soft);
}

.article-content a {
  font-weight: 700;
}

.notice {
  border: 1px solid color-mix(in oklch, var(--primary) 28%, var(--line));
  border-radius: var(--radius);
  background: var(--primary-soft);
  padding: 1.1rem 1.35rem;
  margin-bottom: 0.5rem;
}

.notice strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--primary-strong);
  font-weight: 750;
}

.notice p {
  margin: 0;
  color: var(--ink-soft);
}

.notice p + p {
  margin-top: 0.5rem;
}

.side-note {
  position: sticky;
  top: 96px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.25rem;
}

.side-note h2,
.side-note h3 {
  margin: 0 0 0.65rem;
  font-size: 0.95rem;
  font-weight: 750;
  letter-spacing: -0.01em;
}

.side-note p,
.side-note li {
  color: var(--muted);
  font-size: 0.92rem;
}

.side-note ul {
  margin-bottom: 0;
}

.faq-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
  padding: 1.15rem 0;
}

.faq-list summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 700;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  float: right;
  color: var(--muted);
  font-weight: 650;
  transition: transform var(--transition), color var(--transition);
}

.faq-list details[open] summary::after {
  content: "\2212";
  color: var(--primary);
}

.faq-list details p {
  margin: 0.8rem 0 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: var(--space-2xl) 0 max(var(--space-2xl), env(safe-area-inset-bottom));
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-xl);
  align-items: start;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
  color: var(--ink);
  font-weight: 750;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.footer-brand img {
  width: 28px;
  height: 28px;
}

.footer-inner p {
  margin: 0.2rem 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-meta {
  display: grid;
  gap: 0.45rem;
  max-width: 36rem;
  margin: 0;
}

.footer-meta p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.footer-meta strong {
  color: var(--ink-soft);
  font-weight: 680;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem 1.25rem;
  max-width: 520px;
}

.footer-links a {
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--primary-strong);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* Editorial homepage layout */
.hero-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.62fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.hero-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

.hero-panel h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.1rem, 1rem + 0.9vw, 1.35rem);
}

.contact-block {
  display: grid;
  grid-template-columns: minmax(0, 0.6fr) minmax(280px, 0.4fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact-block .lede {
  margin-top: 0;
}

.contact-list {
  display: grid;
  gap: var(--space-md);
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
}

.contact-list strong {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.contact-list a {
  font-weight: 700;
  font-size: 1.05rem;
}

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

@media (max-width: 920px) {
  .hero-split,
  .page-hero,
  .section-header,
  .dossier-grid,
  .article-shell,
  .contact-block {
    grid-template-columns: 1fr;
  }

  .page-hero {
    align-items: start;
  }

  .side-note {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    min-height: auto;
    padding-block: 0.85rem;
  }

  .js .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-top: 0.75rem;
  }

  .js .site-nav {
    display: none;
  }

  .js .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    min-height: 48px;
    padding: 0.7rem 0.5rem;
    border-radius: 0;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a:last-of-type {
    border-bottom: none;
  }

  .site-nav a:hover,
  .site-nav a[aria-current="page"] {
    background: transparent;
    color: var(--primary-strong);
  }

  .site-nav .nav-cta {
    margin-left: 0;
    margin-top: 0.5rem;
    border-radius: var(--radius-pill);
    justify-content: center;
  }

  h1,
  .page-hero h1 {
    max-width: 14ch;
    font-size: clamp(2.4rem, 10vw, 3.4rem);
    letter-spacing: -0.035em;
  }

  .lede {
    font-size: 1.05rem;
  }

  .hero-actions,
  .link-row {
    align-items: stretch;
    flex-direction: column;
  }

  .button-link,
  .secondary-link {
    width: 100%;
  }

  .route-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    align-items: start;
  }

  .route-item a {
    justify-self: start;
  }

  .meta-list li {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .app-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 480px) {
  .wrap,
  .narrow-wrap {
    width: min(100% - 1.5rem, var(--wrap));
  }

  h1,
  .page-hero h1 {
    font-size: clamp(2.2rem, 11vw, 2.9rem);
  }

  .app-summary {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .app-icon-large {
    width: 80px;
    height: 80px;
  }
}