:root {
  --color-forest: #1E3D2F;
  --color-moss: #2F5D4A;
  --color-terra: #C96F4A;
  --color-orange: #F28C28;
  --color-stone: #4A4A48;
  --color-cream: #F5F1E8;
  --color-white: #FFFFFF;
  --color-ink: #1F1F1E;
  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", monospace;
  --container: 1200px;
  --gutter: clamp(20px, 4vw, 56px);
  --space-xs: .5rem;
  --space-sm: .75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --shadow-1: 0 10px 25px rgba(31,31,30,.08);
  --shadow-2: 0 24px 60px rgba(31,31,30,.14);
  --transition: .25s cubic-bezier(.22,.68,.43,1);
}

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

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

body {
  margin: 0;
  background: linear-gradient(180deg, rgba(30,61,47,.04) 0, transparent 260px), var(--color-cream);
  color: var(--color-stone);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  overflow-wrap: break-word;
}

h1, h2, h3, h4, p, ul, ol, figure {
  margin: 0;
}

ul, ol {
  padding: 0;
}

a {
  color: inherit;
}

button {
  font: inherit;
}

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

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

:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: 3px;
}

#main-content {
  scroll-margin-top: 1.5rem;
}

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

.page {
  width: min(calc(100% - (var(--gutter) * 2)), var(--container));
  margin-inline: auto;
  padding-block: clamp(3rem, 8vw, 6rem);
}

.page--narrow {
  max-width: 860px;
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  z-index: 200;
  background: var(--color-orange);
  color: var(--color-forest);
  padding: .65rem 1rem;
  text-decoration: none;
  font-family: var(--font-display);
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: top .2s;
}

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

@keyframes slash-in {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, rgba(201,111,74,.16) 0, rgba(201,111,74,.16) 18%, transparent 18%), var(--color-forest);
  color: var(--color-cream);
  box-shadow: 0 2px 0 rgba(242,140,40,.55);
}

.site-header::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange) 0 16%, var(--color-terra) 16% 35%, rgba(245,241,232,.24) 35% 48%, transparent 48%);
  transform-origin: left center;
  animation: slash-in .7s cubic-bezier(.22,.68,.43,1) both;
}

.masthead {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg) var(--gutter) var(--space-md);
}

.masthead__brand {
  display: grid;
  justify-items: center;
  gap: var(--space-xs);
  text-align: center;
}

.masthead__line {
  display: block;
  font-family: var(--font-mono);
  color: var(--color-orange);
  font-size: .6875rem;
  letter-spacing: .42em;
  text-indent: .42em;
  text-transform: uppercase;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-cream);
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  background: var(--color-orange);
  color: var(--color-forest);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.1rem;
  line-height: 1;
  clip-path: polygon(0 0, 80% 0, 100% 20%, 100% 100%, 20% 100%, 0 80%);
  transition: transform var(--transition);
}

.brand:hover .brand__mark {
  transform: rotate(-3deg);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 1.95rem;
  font-weight: 600;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--color-white);
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--color-orange);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  padding: .55rem .85rem;
  background: transparent;
  color: var(--color-cream);
  border: 1px solid rgba(245,241,232,.4);
  cursor: pointer;
  font-size: .8125rem;
}

.nav-toggle__label {
  text-transform: uppercase;
  letter-spacing: .12em;
}

.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bar {
  height: 2px;
  background: currentColor;
  border-radius: 0;
  transition: transform .25s, opacity .25s;
}

.nav-toggle:hover {
  border-color: var(--color-orange);
  color: var(--color-orange);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) 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(-6px) rotate(-45deg);
}

.site-nav {
  background: rgba(15,35,25,.38);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__link {
  position: relative;
  display: block;
  padding: .95rem 1.35rem;
  color: var(--color-cream);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: .875rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  transition: color .2s;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 1.35rem;
  right: 1.35rem;
  bottom: -2px;
  height: 3px;
  background: var(--color-orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}

.site-nav__link:hover {
  color: var(--color-white);
}

.site-nav__link:hover::after {
  transform: scaleX(1);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-orange);
}

.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.slash-line {
  height: 4px;
  background: linear-gradient(90deg, var(--color-orange) 0 14%, var(--color-terra) 14% 32%, var(--color-moss) 32% 56%, rgba(245,241,232,.45) 56% 70%, transparent 70%);
}

.site-footer {
  position: relative;
  background: linear-gradient(120deg, rgba(242,140,40,.1) 0, rgba(242,140,40,.1) 12%, transparent 12%), var(--color-forest);
  color: var(--color-cream);
}

.site-footer__inner {
  width: min(calc(100% - (var(--gutter) * 2)), var(--container));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, .8fr));
  gap: calc(var(--space-xl) + var(--space-md));
  padding: var(--space-xl) 0;
}

.site-footer__brand .brand {
  margin-bottom: var(--space-md);
}

.brand--footer .brand__mark {
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.75rem;
}

.brand--footer .brand__name {
  font-size: 1.7rem;
}

.brand--footer .brand__sub {
  font-size: .65rem;
}

.site-footer__about {
  margin-top: var(--space-md);
  max-width: 36em;
  color: rgba(245,241,232,.72);
  font-size: .9375rem;
}

.site-footer__trust {
  margin-top: var(--space-sm);
  max-width: 38em;
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-orange);
  color: rgba(245,241,232,.5);
  font-size: .8125rem;
  line-height: 1.7;
}

.site-footer__heading {
  margin-bottom: var(--space-md);
  font-family: var(--font-display);
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--color-orange);
}

.site-footer__list {
  display: grid;
  gap: .35rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .9rem;
}

.site-footer__list a {
  display: inline-block;
  padding: .15rem 0;
  color: rgba(245,241,232,.85);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}

.site-footer__list a:hover,
.site-footer__list a:focus-visible {
  color: var(--color-orange);
  border-bottom-color: var(--color-orange);
}

.site-footer__contact {
  color: rgba(245,241,232,.75);
}

.site-footer__contact li {
  display: grid;
  grid-template-columns: 3.5em 1fr;
  gap: .5rem;
  padding: .25rem 0;
}

.site-footer__contact-label {
  padding-top: .35rem;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-orange);
}

.site-footer__meta {
  width: min(calc(100% - (var(--gutter) * 2)), var(--container));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: .75rem 1.5rem;
  padding: 1.25rem 0 1.75rem;
  border-top: 1px solid rgba(245,241,232,.18);
  font-family: var(--font-mono);
  font-size: .75rem;
  color: rgba(245,241,232,.58);
}

.site-footer__icp {
  font-style: normal;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .85rem 1.5rem;
  background: var(--color-orange);
  color: var(--color-forest);
  border: 2px solid var(--color-orange);
  font-family: var(--font-display);
  font-size: .875rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background .2s, color .2s, transform .2s;
}

.btn:hover,
.btn:focus-visible {
  background: var(--color-forest);
  color: var(--color-orange);
  border-color: var(--color-forest);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-orange);
  border-color: var(--color-orange);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--color-orange);
  color: var(--color-forest);
  border-color: var(--color-orange);
}

.btn--small {
  padding: .6rem 1rem;
  font-size: .75rem;
}

.section {
  margin-block: clamp(3rem, 8vw, 6rem);
}

.section__kicker {
  display: block;
  margin-bottom: .75rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .36em;
  text-transform: uppercase;
  color: var(--color-terra);
}

.section__heading {
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  line-height: .95;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--color-forest);
}

.section__intro {
  margin-top: var(--space-md);
  max-width: 62ch;
  font-size: 1.0625rem;
  color: var(--color-stone);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.breadcrumbs__item {
  display: inline-flex;
  align-items: center;
}

.breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: .5rem;
  color: var(--color-terra);
}

.breadcrumbs__link {
  color: var(--color-stone);
  text-decoration: none;
}

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

.breadcrumbs__item[aria-current="page"] {
  color: var(--color-forest);
  font-weight: 700;
}

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

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

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

.card {
  background: var(--color-white);
  color: var(--color-stone);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow-1);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: rotate(-1.5deg) translateY(-3px);
  box-shadow: var(--shadow-2);
}

.card--cut {
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

.card--dark {
  background: var(--color-forest);
  color: var(--color-cream);
}

.data-panel {
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--color-white);
  border-left: 4px solid var(--color-terra);
  box-shadow: var(--shadow-1);
}

.data-panel--dark {
  background: var(--color-moss);
  border-left-color: var(--color-orange);
  color: var(--color-cream);
}

.index-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.index-list__item {
  border-bottom: 1px solid rgba(31,31,30,.15);
}

.index-list__link {
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  align-items: baseline;
  gap: var(--space-md);
  padding: 1rem 0;
  color: var(--color-forest);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: color .2s, padding-left .2s;
}

.index-list__link:hover {
  padding-left: .25rem;
  color: var(--color-terra);
}

.index-list__index {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--color-terra);
}

.index-list__meta {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--color-stone);
  text-transform: none;
}

.toc {
  display: grid;
  gap: 1px;
  border: 1px solid var(--color-stone);
  background: var(--color-stone);
}

.toc__link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--color-white);
  color: var(--color-forest);
  text-decoration: none;
  font-family: var(--font-display);
  letter-spacing: .05em;
  text-transform: uppercase;
  transition: background .2s, color .2s;
}

.toc__link:hover {
  background: var(--color-cream);
  color: var(--color-terra);
}

.toc__link::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--color-orange);
}

.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--color-moss);
}

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

.media--tall {
  aspect-ratio: 3 / 4;
}

.media--cut {
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.media__placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: linear-gradient(135deg, rgba(242,140,40,.18) 0, rgba(242,140,40,.18) 8%, transparent 8%, transparent 30%, rgba(245,241,232,.12) 30%, rgba(245,241,232,.12) 31%, transparent 31%), linear-gradient(135deg, var(--color-moss), var(--color-forest));
  color: rgba(245,241,232,.85);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
}

figure {
  margin: 0;
}

figcaption {
  padding-top: .6rem;
  font-size: .8125rem;
  color: var(--color-stone);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
  transition-delay: var(--reveal-delay, 0s);
}

[data-reveal="visible"] {
  opacity: 1;
  transform: none;
}

@media (max-width: 1024px) {
  .site-footer__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-xl);
  }

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

@media (max-width: 760px) {
  .masthead {
    justify-content: flex-start;
    padding: var(--space-md) var(--gutter);
  }

  .masthead__brand {
    justify-items: start;
    text-align: left;
  }

  .nav-toggle {
    display: inline-flex;
    position: absolute;
    top: 50%;
    right: var(--gutter);
    transform: translateY(-50%);
  }

  .site-nav {
    display: none;
  }

  .site-nav[data-open] {
    display: block;
    border-bottom: 1px solid rgba(245,241,232,.15);
  }

  .site-nav__list {
    flex-direction: column;
    padding: .5rem 0 .75rem;
  }

  .site-nav__link {
    padding: .85rem var(--gutter);
    border-left: 3px solid transparent;
  }

  .site-nav__link::after {
    display: none;
  }

  .site-nav__link[aria-current="page"] {
    border-left-color: var(--color-orange);
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .site-footer__meta {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .index-list__link {
    grid-template-columns: 2.25rem 1fr;
  }

  .index-list__meta {
    grid-column: 2;
  }
}

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

  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }

  .brand__mark,
  .site-nav__link::after,
  .btn,
  .index-list__link,
  .nav-toggle__bar,
  .card {
    transition: none;
  }
}