:root {
  --color-ink: #17221d;
  --color-muted: #59645e;
  --color-paper: #fffef9;
  --color-canvas: #f3f0e8;
  --color-line: #d8ddd6;
  --color-accent: #17634a;
  --color-accent-dark: #0e4433;
  --color-accent-soft: #e1eee8;
  --color-warm: #ece2cf;
  --color-warning: #8a3429;
  --color-warning-soft: #fff1ec;
  --shadow-card: 0 18px 45px rgb(23 34 29 / 9%);
  --radius-large: 28px;
  --radius-medium: 18px;
  --radius-small: 10px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--color-ink);
  background: var(--color-canvas);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-ink);
  line-height: 1.7;
}

body::before {
  position: fixed;
  inset: 0 0 auto;
  z-index: -1;
  height: 360px;
  background:
    linear-gradient(90deg, transparent 0 72%, rgb(23 99 74 / 6%) 72% 73%, transparent 73%),
    linear-gradient(var(--color-paper), var(--color-canvas));
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid #d86b3d;
  outline-offset: 4px;
}

button,
summary,
a {
  -webkit-tap-highlight-color: rgb(23 99 74 / 16%);
}

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

h1,
h2,
h3 {
  line-height: 1.18;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.45rem, 7vw, 5.6rem);
  letter-spacing: -0.055em;
}

h2 {
  font-size: clamp(1.85rem, 4vw, 3.25rem);
  letter-spacing: -0.035em;
}

h3 {
  font-size: 1.18rem;
}

.shell {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  transform: translateY(-150%);
  border-radius: var(--radius-small);
  background: var(--color-ink);
  color: white;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgb(23 34 29 / 12%);
  background: rgb(255 254 249 / 94%);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-lockup strong,
.brand-lockup small {
  display: block;
}

.brand-lockup strong {
  font-size: 0.95rem;
  letter-spacing: 0.06em;
}

.brand-lockup small {
  color: var(--color-muted);
  font-size: 0.72rem;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50% 50% 50% 14px;
  background: var(--color-accent);
  color: white;
  font-weight: 800;
}

.desktop-nav,
.desktop-nav a,
.mobile-nav nav,
.footer-nav {
  display: flex;
  align-items: center;
}

.desktop-nav {
  gap: 6px;
}

.desktop-nav a {
  min-height: 44px;
  padding: 0 13px;
  border-radius: 999px;
  color: #39443e;
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

.mobile-nav {
  display: none;
}

.page-frame {
  padding-block: 34px 104px;
}

.breadcrumbs {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 9px;
  margin-bottom: 32px;
  color: var(--color-muted);
  font-size: 0.84rem;
}

.eyebrow,
.section-index,
.hero-label,
.footer-kicker {
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  min-height: 630px;
  align-items: center;
  gap: clamp(36px, 7vw, 96px);
  grid-template-columns: minmax(0, 1.12fr) minmax(340px, 0.68fr);
}

.hero-copy h1 {
  max-width: 820px;
  margin-bottom: 28px;
}

.lede {
  max-width: 760px;
  color: #435049;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--color-accent);
  color: white;
}

.button-primary:hover {
  background: var(--color-accent-dark);
}

.button-secondary {
  border-color: #aab4ad;
  background: var(--color-paper);
}

.plain-note,
.filing-line {
  margin-top: 22px;
  color: var(--color-muted);
  font-size: 0.88rem;
}

.schedule-card {
  overflow: hidden;
  border: 1px solid rgb(23 34 29 / 11%);
  border-radius: var(--radius-large);
  background: var(--color-paper);
  box-shadow: var(--shadow-card);
}

.schedule-card::before {
  display: block;
  height: 10px;
  background: var(--color-accent);
  content: "";
}

.schedule-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 26px;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 0.84rem;
}

.status-pill {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
}

.status-neutral {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

.status-blocked {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.schedule-focus {
  display: grid;
  gap: 20px;
  padding: 34px 26px 28px;
  grid-template-columns: auto 1fr;
}

.schedule-index {
  color: var(--color-accent);
  font-size: 2.5rem;
  font-weight: 300;
  line-height: 1;
}

.schedule-focus strong {
  font-size: 1.45rem;
}

.schedule-focus p {
  margin: 8px 0 0;
  color: var(--color-muted);
}

.schedule-steps {
  display: grid;
  margin: 0;
  padding: 0 26px 30px;
  list-style: none;
}

.schedule-steps li {
  display: grid;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--color-line);
  color: #39443e;
  grid-template-columns: 34px 1fr;
}

.schedule-steps span {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 800;
}

.section-block {
  margin-top: 104px;
}

.section-heading {
  max-width: 800px;
  margin-bottom: 40px;
}

.section-heading h2 {
  margin-bottom: 16px;
}

.section-heading > p:last-child {
  color: var(--color-muted);
}

.compact-heading {
  margin-bottom: 24px;
}

.card-grid,
.architecture-grid,
.link-grid,
.data-grid,
.rights-grid,
.status-grid {
  display: grid;
  gap: 18px;
}

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

.info-card,
.architecture-grid article,
.rights-grid article,
.status-grid article {
  border: 1px solid rgb(23 34 29 / 12%);
  border-radius: var(--radius-medium);
  background: rgb(255 254 249 / 72%);
}

.info-card {
  min-height: 260px;
  padding: 28px;
}

.info-card h3 {
  margin: 28px 0 12px;
}

.info-card p,
.architecture-grid p,
.rights-grid p,
.status-grid p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.card-number,
.architecture-label {
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.14em;
}

.boundary-panel {
  padding: clamp(28px, 6vw, 58px);
  border: 1px solid #c9d7d0;
  border-radius: var(--radius-large);
  background: var(--color-accent-soft);
}

.boundary-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 1.3em;
}

.boundary-list li::marker {
  color: var(--color-accent);
}

.architecture-grid article {
  min-height: 230px;
  padding: 28px;
  background: var(--color-paper);
}

.architecture-grid h3 {
  margin: 24px 0 12px;
}

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

.link-grid a {
  display: grid;
  min-height: 130px;
  align-content: center;
  gap: 8px;
  padding: 25px;
  border-top: 1px solid #8e9992;
  text-decoration: none;
}

.link-grid a:hover {
  border-color: var(--color-accent);
  background: rgb(255 254 249 / 58%);
}

.link-grid span {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.document-hero,
.page-hero {
  display: grid;
  align-items: end;
  gap: 36px;
  padding: 42px 0 68px;
  grid-template-columns: minmax(0, 1fr) minmax(270px, 0.4fr);
}

.document-hero h1,
.page-hero h1 {
  margin: 16px 0 24px;
}

.draft-badge {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--color-warm);
  color: #5b4320;
  font-size: 0.78rem;
  font-weight: 850;
}

.draft-notice,
.contact-status,
.baseline-card {
  display: grid;
  gap: 8px;
  padding: 24px;
  border-left: 4px solid var(--color-warning);
  background: var(--color-paper);
}

.draft-notice strong {
  color: var(--color-warning);
}

.draft-notice span,
.contact-status span,
.contact-status small,
.baseline-card span,
.baseline-card small {
  color: var(--color-muted);
}

.prose-document {
  display: grid;
  max-width: 900px;
  gap: 64px;
  margin-top: 44px;
}

.prose-document section {
  scroll-margin-top: 100px;
}

.prose-document h2 {
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid #aeb8b1;
  font-size: clamp(1.45rem, 3vw, 2.15rem);
}

.prose-document p,
.prose-document li {
  color: #354139;
}

.prose-document li + li {
  margin-top: 8px;
}

.data-grid {
  margin-top: 30px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.data-grid article {
  padding: 22px;
  border-left: 3px solid var(--color-accent);
  background: rgb(255 254 249 / 76%);
}

.data-grid h3 {
  margin-bottom: 10px;
}

.data-grid p {
  margin-bottom: 0;
  font-size: 0.94rem;
}

.inline-link {
  color: var(--color-accent-dark);
  font-weight: 750;
}

.contact-status strong,
.baseline-card strong {
  color: var(--color-accent-dark);
  font-size: 1.8rem;
}

.callout {
  padding: 24px;
  border-left: 4px solid var(--color-accent);
  background: var(--color-paper);
}

.callout p:last-child {
  margin-bottom: 0;
}

.callout-warning {
  border-color: var(--color-warning);
  background: var(--color-warning-soft);
}

.callout-warning strong {
  color: var(--color-warning);
}

.status-definition,
.compact-definition {
  margin: 28px 0 0;
}

.status-definition > div,
.compact-definition > div {
  display: grid;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--color-line);
  grid-template-columns: minmax(130px, 0.35fr) 1fr;
}

.status-definition dt,
.compact-definition dt {
  color: var(--color-muted);
}

.status-definition dd,
.compact-definition dd {
  margin: 0;
  font-weight: 750;
}

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

.rights-grid article {
  min-height: 210px;
  padding: 24px;
}

.rights-grid article > span {
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 850;
}

.rights-grid h3 {
  margin: 24px 0 10px;
}

.process-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: process;
}

.process-list li {
  display: grid;
  gap: 12px;
  padding: 22px 0;
  border-top: 1px solid #abb6af;
  grid-template-columns: minmax(150px, 0.35fr) 1fr;
}

.process-list strong {
  color: var(--color-accent-dark);
}

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

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

.status-grid article {
  min-height: 210px;
  padding: 26px;
}

.status-grid article > div {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--color-muted);
  font-size: 0.85rem;
  font-weight: 800;
}

.status-grid strong {
  font-size: 1.35rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.status-dot-local {
  background: var(--color-accent);
}

.status-dot-blocked {
  background: var(--color-warning);
}

.status-dot-isolated {
  background: #735d2f;
}

.fact-list {
  border-top: 1px solid #9ca8a0;
}

.fact-list > div {
  display: grid;
  align-items: start;
  gap: 18px;
  padding: 25px 0;
  border-bottom: 1px solid var(--color-line);
  grid-template-columns: minmax(120px, 0.25fr) minmax(210px, 0.45fr) 1fr;
}

.fact-list span,
.fact-list p {
  color: var(--color-muted);
}

.fact-list p {
  margin: 0;
}

.not-found {
  display: grid;
  min-height: 560px;
  place-content: center;
  text-align: center;
}

.not-found-code {
  margin-bottom: 10px;
  color: var(--color-accent);
  font-size: clamp(5rem, 18vw, 11rem);
  font-weight: 200;
  letter-spacing: -0.08em;
  line-height: 0.8;
}

.not-found h1 {
  max-width: 780px;
  margin-inline: auto;
  font-size: clamp(2rem, 5vw, 4rem);
}

.not-found > p:not(.not-found-code) {
  max-width: 620px;
  margin-inline: auto;
  color: var(--color-muted);
}

.not-found .button-row {
  justify-content: center;
}

.site-footer {
  border-top: 1px solid #cad1cc;
  background: var(--color-ink);
  color: #eff5f1;
}

.footer-grid {
  display: grid;
  gap: 48px;
  padding-block: 64px;
  grid-template-columns: 1.1fr 0.9fr 0.55fr;
}

.footer-grid h2 {
  font-size: 1.15rem;
}

.footer-grid p,
.footer-grid dt,
.footer-grid dd {
  color: #bdc9c2;
  font-size: 0.88rem;
}

.footer-kicker {
  color: #8dc7ae !important;
}

.compact-definition {
  margin-top: 0;
}

.compact-definition > div {
  border-color: rgb(255 255 255 / 14%);
  grid-template-columns: 90px 1fr;
}

.footer-nav {
  align-items: flex-start;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  min-height: 40px;
  color: #e4ece7;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-block: 20px;
  border-top: 1px solid rgb(255 255 255 / 14%);
  color: #9caaa2;
  font-size: 0.78rem;
}

@media (max-width: 960px) {
  .hero {
    min-height: auto;
    padding: 72px 0 30px;
    grid-template-columns: 1fr;
  }

  .schedule-card {
    max-width: 640px;
  }

  .three-columns,
  .architecture-grid,
  .rights-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .footer-nav {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 30px, 680px);
  }

  .header-inner {
    min-height: 68px;
  }

  .brand-lockup small,
  .desktop-nav {
    display: none;
  }

  .mobile-nav {
    position: relative;
    display: block;
  }

  .mobile-nav summary {
    display: grid;
    min-width: 52px;
    min-height: 44px;
    place-items: center;
    border: 1px solid #aeb9b2;
    border-radius: 999px;
    font-size: 0.84rem;
    font-weight: 800;
    cursor: pointer;
    list-style: none;
  }

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

  .mobile-nav nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    display: grid;
    width: min(82vw, 310px);
    padding: 10px;
    border: 1px solid #bfc8c2;
    border-radius: var(--radius-medium);
    background: var(--color-paper);
    box-shadow: var(--shadow-card);
  }

  .mobile-nav nav a {
    display: flex;
    min-height: 48px;
    align-items: center;
    padding: 0 12px;
    border-radius: var(--radius-small);
    text-decoration: none;
  }

  .mobile-nav nav a[aria-current="page"] {
    background: var(--color-accent-soft);
    color: var(--color-accent-dark);
    font-weight: 800;
  }

  .page-frame {
    padding-block: 20px 76px;
  }

  .breadcrumbs {
    margin-bottom: 20px;
  }

  .hero {
    padding-top: 48px;
  }

  .section-block {
    margin-top: 76px;
  }

  .section-heading {
    margin-bottom: 28px;
  }

  .document-hero,
  .page-hero {
    align-items: start;
    padding: 30px 0 44px;
    grid-template-columns: 1fr;
  }

  .three-columns,
  .architecture-grid,
  .link-grid,
  .data-grid,
  .rights-grid,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .info-card,
  .architecture-grid article,
  .rights-grid article,
  .status-grid article {
    min-height: auto;
  }

  .fact-list > div,
  .process-list li {
    gap: 8px;
    grid-template-columns: 1fr;
  }

  .footer-grid {
    gap: 36px;
    padding-block: 50px;
    grid-template-columns: 1fr;
  }

  .footer-nav {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 440px) {
  h1 {
    font-size: clamp(2.15rem, 12vw, 3.2rem);
  }

  .schedule-card-head,
  .schedule-focus,
  .schedule-steps {
    padding-inline: 20px;
  }

  .schedule-focus {
    grid-template-columns: 1fr;
  }

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

  .button {
    width: 100%;
  }

  .status-definition > div,
  .compact-definition > div {
    gap: 4px;
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .button-row,
  .skip-link {
    display: none;
  }

  body,
  body::before {
    background: white;
  }

  .page-frame {
    width: 100%;
    padding: 0;
  }

  .prose-document {
    max-width: none;
  }
}