:root {
  --color-pearl: #F5F0E6;
  --color-stone: #4A4945;
  --color-muted: #706E68;
  --color-line: #D8D3CB;
  --color-line-strong: #B4AFA5;
  --color-sage: #7A8B6F;
  --color-terra: #B56B45;
  --color-orange: #F19A3E;
  --color-lime: #C5E063;
  --color-space: #1B2A4A;
  --color-space-soft: #253A61;
  --color-footer: #3A3935;
  --font-ui: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "Roboto Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 28px;
  --radius-pill: 999px;
  --header-h: 72px;
  --shadow-soft: 0 1px 0 rgba(74,73,69,.08), 0 12px 32px rgba(27,42,74,.06);
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-pearl);
  background-image:
    linear-gradient(to right, rgba(74,73,69,.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(74,73,69,.035) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--color-stone);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.6;
}

main {
  display: block;
}

h1, h2, h3, p, ul, ol, figure, blockquote, dl, dd {
  margin: 0;
}

ul, ol {
  padding: 0;
}

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

button {
  font: inherit;
}

a {
  color: var(--color-terra);
}

:focus-visible {
  outline: 3px solid rgba(241,154,62,.85);
  outline-offset: 2px;
}

::selection {
  background: var(--color-orange);
  color: var(--color-space);
}

[id] {
  scroll-margin-top: 6rem;
}

#main-content {
  outline: none;
}

.container {
  width: min(100% - 2.5rem, 74rem);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: -5rem;
  left: 1.25rem;
  z-index: 300;
  padding: .7rem 1.1rem;
  background: var(--color-space);
  color: var(--color-pearl);
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: 600;
  box-shadow: var(--shadow-soft);
  transition: top 180ms ease;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  color: var(--color-stone);
  background: transparent;
  transition: background-color 180ms ease, box-shadow 180ms ease, backdrop-filter 180ms ease;
}

.site-header[data-scrolled] {
  background: rgba(245,240,230,.78);
  box-shadow: 0 .5rem 2rem rgba(27,42,74,.08);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: .5rem;
  color: inherit;
  text-decoration: none;
  line-height: 1.2;
  flex: none;
}

.brand__name {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: .02em;
}

.brand__mark {
  font-family: var(--font-data);
  font-size: .625rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--color-sage);
  background: rgba(122,139,111,.15);
  border: 1px solid rgba(122,139,111,.2);
  border-radius: var(--radius-pill);
  padding: .2rem .5rem;
}

.brand--inverse {
  color: var(--color-pearl);
}

.brand--inverse .brand__mark {
  color: var(--color-lime);
  background: rgba(197,224,99,.12);
  border-color: rgba(197,224,99,.2);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-line-strong);
  border-radius: 50%;
  background: rgba(245,240,230,.4);
  color: inherit;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle__bar + .nav-toggle__bar {
  margin-top: 5px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: .4rem 1rem;
  border-radius: var(--radius-pill);
  color: var(--color-stone);
  text-decoration: none;
  font-size: .875rem;
  font-weight: 500;
  transition: background-color 150ms ease, color 150ms ease;
}

.nav-link:hover {
  background: rgba(255,255,255,.55);
  color: var(--color-terra);
}

.nav-link[aria-current="page"]:not(.nav-link--cta) {
  background: rgba(27,42,74,.08);
  color: var(--color-space);
}

.nav-link--cta {
  background: var(--color-terra);
  color: var(--color-pearl);
}

.nav-link--cta:hover {
  background: var(--color-space);
  color: var(--color-pearl);
}

.nav-link--cta[aria-current="page"] {
  background: var(--color-space);
  box-shadow: inset 0 0 0 2px var(--color-terra);
}

.site-main {
  flex: 1;
  padding-top: var(--header-h);
}

.page-head {
  padding: clamp(3.5rem, 10vw, 6rem) 0 2.5rem;
}

.page-head__kicker {
  font-family: var(--font-data);
  font-size: .75rem;
  letter-spacing: .25em;
  color: var(--color-terra);
  text-transform: uppercase;
}

.page-head__title {
  margin-top: .5rem;
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--color-space);
  max-width: 16ch;
}

.page-head__desc {
  margin-top: 1.25rem;
  max-width: 60ch;
  color: var(--color-muted);
}

.section {
  padding: clamp(3.5rem, 9vw, 6.5rem) 0;
  scroll-margin-top: 5.5rem;
}

.section--tinted {
  background: #EFEAE0;
}

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

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

.section__head {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  align-items: start;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.section__index {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding-top: .5rem;
  font-family: var(--font-data);
  font-size: .75rem;
  letter-spacing: .25em;
  color: var(--color-terra);
}

.section__index::after {
  content: "";
  height: 1px;
  width: 3rem;
  background: var(--color-terra);
  opacity: .5;
}

.section__title {
  max-width: 16ch;
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 200;
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--color-stone);
}

.section--space .section__title {
  color: var(--color-pearl);
}

.section__desc {
  max-width: 65ch;
  margin-top: .75rem;
  color: var(--color-muted);
}

.section--space .section__desc {
  color: rgba(245,240,230,.7);
}

.prose {
  max-width: 68ch;
}

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

.prose h2,
.prose h3 {
  margin-top: 2rem;
  color: var(--color-space);
  line-height: 1.3;
}

.prose a {
  color: var(--color-terra);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.prose ul {
  padding-left: 1rem;
  color: var(--color-muted);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
  margin: 0 0 2.5rem;
  list-style: none;
  font-size: .875rem;
  color: var(--color-muted);
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--color-line-strong);
}

.breadcrumb__link {
  color: var(--color-sage);
  text-decoration: none;
}

.breadcrumb__link:hover {
  color: var(--color-terra);
}

.breadcrumb__item[aria-current="page"] {
  color: var(--color-space);
  font-weight: 600;
}

.layout {
  display: grid;
  grid-template-columns: minmax(200px, .3fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
}

.layout__aside {
  position: sticky;
  top: 6.5rem;
  align-self: start;
}

.layout__main {
  min-width: 0;
}

.section-index {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  border-left: 1px solid var(--color-line-strong);
  padding-left: 1.25rem;
}

.section-index__item {
  display: flex;
  align-items: center;
  gap: .6rem;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: .4rem .5rem;
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  cursor: pointer;
  font-size: .875rem;
  transition: color 120ms ease;
}

.section-index__item:hover {
  color: var(--color-stone);
}

.section-index__item::before {
  content: "";
  flex: none;
  width: .4rem;
  height: .4rem;
  border-radius: 50%;
  background: var(--color-line-strong);
  transition: background-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}

.section-index__item[aria-current="true"] {
  color: var(--color-space);
  font-weight: 600;
}

.section-index__item[aria-current="true"]::before {
  background: var(--color-terra);
  transform: scale(1.5);
  box-shadow: 0 0 0 3px rgba(181,107,69,.15);
}

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

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

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

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

.card {
  background: var(--color-pearl);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: 0 1px 0 var(--color-line);
  transition: background-color 150ms ease, border-color 150ms ease;
}

.card:hover {
  background: #FBF7EF;
  border-color: var(--color-orange);
}

.card--space {
  background: var(--color-space);
  color: var(--color-pearl);
  border-color: transparent;
}

.card--space:hover {
  background: var(--color-space-soft);
}

.card--terra {
  background: var(--color-terra);
  color: #FFF;
  border-color: transparent;
}

.card--terra:hover {
  background: #9C5734;
}

.card__label {
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.card--space .card__label {
  color: rgba(245,240,230,.62);
}

.card--terra .card__label {
  color: rgba(255,255,255,.75);
}

.card__value {
  margin-top: .5rem;
  font-family: var(--font-data);
  font-size: 2.2rem;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--color-space);
}

.card--space .card__value,
.card--terra .card__value {
  color: var(--color-orange);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 42px;
  padding: .6rem 1.2rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-stone);
  font-size: .875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.btn--primary {
  background: var(--color-space);
  color: var(--color-pearl);
}

.btn--primary:hover {
  background: var(--color-space-soft);
}

.btn--accent {
  background: var(--color-terra);
  color: var(--color-pearl);
}

.btn--accent:hover {
  background: #9C5734;
}

.btn--outline {
  border-color: var(--color-line-strong);
  color: var(--color-stone);
}

.btn--outline:hover {
  border-color: var(--color-terra);
  color: var(--color-terra);
}

.btn--ghost {
  border-color: rgba(245,240,230,.35);
  color: var(--color-pearl);
}

.btn--ghost:hover {
  background: rgba(245,240,230,.1);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .65rem;
  border-radius: var(--radius-pill);
  background: rgba(122,139,111,.14);
  color: var(--color-sage);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .08em;
}

.tag--new {
  background: rgba(197,224,99,.25);
  color: #5A6B1F;
}

.tag--live {
  background: rgba(241,154,62,.18);
  color: #A65E1A;
}

.tag__dot {
  width: .4rem;
  height: .4rem;
  border-radius: 50%;
  background: currentColor;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1rem 0;
  list-style: none;
  font-size: .75rem;
  color: var(--color-muted);
}

.legend__item {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.legend__dot {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--color-sage);
}

.legend__dot--terra {
  background: var(--color-terra);
}

.legend__dot--orange {
  background: var(--color-orange);
}

.legend__dot--lime {
  background: var(--color-lime);
}

.legend__dot--space {
  background: var(--color-space);
}

.fold {
  background: var(--color-pearl);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.fold[open] {
  background: #FBF7EF;
}

.fold__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--color-space);
}

.fold__summary::-webkit-details-marker {
  display: none;
}

.fold__summary::after {
  content: "+";
  flex: none;
  display: grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: rgba(181,107,69,.12);
  color: var(--color-terra);
  font-weight: 700;
  transition: transform 180ms ease, background-color 180ms ease;
}

.fold[open] .fold__summary::after {
  content: "–";
  transform: rotate(180deg);
  background: var(--color-terra);
  color: var(--color-pearl);
}

.fold__body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 180ms ease;
}

.fold[open] .fold__body {
  grid-template-rows: 1fr;
}

.fold__content {
  min-height: 0;
  overflow: hidden;
  padding: 0 1.25rem 1.25rem;
  color: var(--color-muted);
}

.media-frame {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 180px;
  aspect-ratio: 16 / 10;
  padding: 1.25rem;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-space);
  color: var(--color-pearl);
}

.media-frame::before {
  content: attr(data-label);
  position: relative;
  z-index: 1;
  font-family: var(--font-data);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(245,240,230,.7);
  background: rgba(27,42,74,.3);
  border: 1px solid rgba(245,240,230,.12);
  padding: .35rem .7rem;
  border-radius: var(--radius-pill);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 40%;
  background: linear-gradient(to top, rgba(27,42,74,.35), transparent);
  pointer-events: none;
}

.media-frame--tall {
  aspect-ratio: 4 / 5;
}

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

.media-frame--terra {
  background: linear-gradient(135deg, var(--color-terra), #7A3F2A);
}

.media-frame--sage {
  background: linear-gradient(135deg, var(--color-sage), #405238);
}

.site-footer {
  position: relative;
  z-index: 0;
  margin-top: 2rem;
  background: var(--color-footer);
  color: #E5DFD3;
  border-radius: 48px 48px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.25fr;
  gap: 2.5rem;
  padding: 3.5rem 0 2.5rem;
}

.footer-brand {
  min-width: 0;
}

.footer-brand .brand {
  margin-bottom: 1rem;
}

.footer-tagline {
  max-width: 46ch;
  margin-top: 1rem;
  color: #C9C1B2;
  font-size: .9rem;
}

.footer-icp {
  margin-top: 1.25rem;
  font-size: .75rem;
  letter-spacing: .05em;
  color: #A9A299;
}

.footer-title {
  margin-bottom: 1rem;
  font-size: .75rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--color-terra);
  font-weight: 600;
}

.footer-links {
  display: grid;
  gap: .6rem;
  list-style: none;
}

.footer-links a {
  color: #DDD6CA;
  text-decoration: none;
  transition: color 150ms ease;
}

.footer-links a:hover {
  color: var(--color-lime);
}

.footer-contact {
  display: grid;
  gap: .75rem;
  list-style: none;
  color: #C9C1B2;
  font-size: .875rem;
}

.footer-col--contact {
  font-variant-numeric: tabular-nums;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0 2rem;
  border-top: 1px solid rgba(245,240,230,.14);
  font-size: .75rem;
  color: #B8B0A3;
}

.footer-copy {
  display: flex;
  gap: .5rem;
  margin: 0;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-legal a {
  color: #B8B0A3;
  text-decoration: none;
  transition: color 150ms ease;
}

.footer-legal a:hover {
  color: var(--color-lime);
}

.to-top {
  position: fixed;
  right: clamp(1rem, 4vw, 2rem);
  bottom: clamp(1rem, 4vw, 2rem);
  z-index: 150;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  border: 1px solid rgba(245,240,230,.3);
  background: var(--color-space);
  color: var(--color-pearl);
  font-size: 1.375rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transform: translateY(.75rem) scale(.9);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease, background-color 150ms ease;
}

.to-top[data-visible] {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.to-top:hover {
  background: var(--color-terra);
}

@media (max-width: 960px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
    position: relative;
    z-index: 4;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 3;
    width: min(22rem, 82vw);
    margin-left: 0;
    padding: 5.5rem 1.5rem 1.5rem;
    background: var(--color-pearl);
    box-shadow: -1.5rem 0 3rem rgba(27,42,74,.18);
    transform: translateX(100%);
    transition: transform 180ms ease;
    overflow-y: auto;
    color: var(--color-stone);
  }

  .site-nav[data-open] {
    transform: translateX(0);
  }

  .site-nav .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: .25rem;
  }

  .nav-link {
    padding: .7rem 1rem;
    font-size: 1rem;
  }

  .nav-link--cta {
    justify-content: center;
  }

  .page-head__title {
    font-size: 3rem;
  }

  .section__head {
    grid-template-columns: 1fr;
    gap: .5rem;
  }
}

@media (max-width: 760px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .layout__aside {
    position: static;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
    padding-top: 2.5rem;
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

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

  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}