:root {
  --paper: #f6f4eb;
  --ink: #19392d;
  --muted: #657064;
  --line: #d9ddcf;
  --soft: #ebeede;
  --accent: #d9e4b8;
  --serif: Georgia,'Times New Roman',serif;
  --sans: Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 32px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-underline-offset: 4px;
}

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

button,input {
  font: inherit;
}

button,a,input,summary {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid #6b7d35;
  outline-offset: 5px;
}

[hidden] {
  display: none!important;
}

.page-width {
  width: min(1216px,calc(100% - 96px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  left: 20px;
  top: -100px;
  z-index: 10;
  padding: 12px 18px;
  background: var(--ink);
  color: white;
}

.skip-link:focus {
  top: 15px;
}

.site-header {
  min-height: 104px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
  gap: 24px;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: bold;
  letter-spacing: 1px;
  text-decoration: none;
}

.brand-mark {
  font: 36px/1 var(--sans);
  font-weight: 400;
}

.wordmark-note {
  font: 10px/1.25 var(--sans);
  font-weight: 600;
  letter-spacing: 1.5px;
  max-width: 50px;
  margin-left: 6px;
  padding-left: 15px;
  border-left: 1px solid var(--line);
}

.site-header nav {
  display: flex;
  gap: 30px;
  align-items: center;
  font-size: 13px;
}

.site-header nav a {
  text-decoration: none;
}

.nav-source {
  border-bottom: 1px solid var(--ink);
  padding-bottom: 3px;
}

.nav-source span {
  margin-left: 10px;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 70px;
  padding: 65px 0 55px;
  align-items: center;
}

.eyebrow {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.8px;
  line-height: 1.5;
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.small-line {
  width: 27px;
  border-top: 1px solid var(--ink);
}

h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(60px,6.9vw,94px);
  line-height: 1.04;
  letter-spacing: -3.6px;
  margin: 0 0 24px;
}

h1 span {
  font-size: .66em;
  letter-spacing: -2.5px;
}

.hero-intro {
  font-size: 17px;
  line-height: 1.65;
  margin: 0 0 27px;
  color: #4c5b4e;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 35px;
  padding: 15px 21px;
  text-decoration: none;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--ink);
  transition: background .15s;
}

.button:hover {
  background: #2e513c;
}

.button span {
  font-size: 20px;
  line-height: 1;
}

.hero-caption {
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  margin: 13px 0 0;
  max-width: 320px;
}

.field-art {
  background: #19372a;
  padding: 20px 22px 18px;
  position: relative;
  overflow: hidden;
  color: #d8ddc8;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 440px;
}

.art-topline {
  font-size: 8px;
  letter-spacing: 1.3px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.art-topline span {
  color: #a7b49d;
}

.forest-art {
  width: 100%;
  height: 340px;
  margin-top: 8px;
}

.art-bottomline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  line-height: 1.5;
  letter-spacing: 2px;
  padding-top: 10px;
  border-top: 1px solid #6b7e5c;
}

.art-symbol {
  font-size: 36px;
  line-height: 1;
  font-weight: 300;
}

.date-panel {
  padding: 28px 0;
  display: grid;
  grid-template-columns: .85fr 1fr 1.2fr 1fr;
  border-block: 1px solid var(--ink);
  align-items: center;
  gap: 24px;
}

.date-panel .eyebrow {
  font-size: 8px;
  letter-spacing: 1.5px;
  margin: 0 0 4px;
}

.date-panel h2 {
  font: 25px/1.2 var(--serif);
  margin: 0;
}

.date-caption {
  font-size: 8px;
  letter-spacing: 1.5px;
  font-weight: 600;
  margin: 0 0 7px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.date-value {
  font: 20px/1.3 var(--serif);
  margin: 0 0 4px;
}

.date-note,.date-context {
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
  color: var(--muted);
}

.date-context {
  padding-left: 22px;
  border-left: 1px solid var(--line);
  font-size: 14px;
}

.tag {
  background: var(--accent);
  font-size: 8px;
  letter-spacing: .5px;
  padding: 2px 5px;
}

.guide-layout {
  display: grid;
  grid-template-columns: 215px minmax(0,1fr);
  gap: 80px;
  padding-top: 64px;
}

.contents {
  align-self: start;
  position: sticky;
  top: 32px;
}

.contents .eyebrow {
  color: var(--muted);
  font-size: 9px;
  margin-bottom: 23px;
}

.contents nav {
  display: flex;
  flex-direction: column;
  gap: 19px;
  font-size: 12px;
}

.contents nav a {
  text-decoration: none;
}

.contents nav a:hover {
  text-decoration: underline;
}

.contents nav span {
  font-size: 9px;
  color: #75806a;
  display: inline-block;
  width: 25px;
}

.rail-note {
  font: italic 18px/1.5 var(--serif);
  margin-top: 37px;
  color: #7b856e;
}

.guide-content {
  max-width: 810px;
}

.guide-section {
  padding-bottom: 50px;
  margin-bottom: 50px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 24px;
}

.guide-section>.eyebrow {
  margin-bottom: 13px;
  font-size: 9px;
}

.guide-section h2 {
  font: 400 clamp(30px,3vw,39px)/1.18 var(--serif);
  letter-spacing: -1px;
  margin: 0 0 17px;
}

.section-intro {
  color: var(--muted);
  margin: 0 0 29px;
  font-size: 16px;
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0 0 31px;
  display: grid;
  gap: 26px;
}

.steps li {
  display: flex;
  gap: 22px;
}

.step-number {
  flex: 0 0 36px;
  height: 36px;
  border: 1px solid #aebca0;
  display: flex;
  align-items: center;
  justify-content: center;
  font: 16px var(--serif);
  margin-top: 2px;
}

.steps h3,.note-box h3 {
  font-size: 17px;
  line-height: 1.5;
  margin: 0 0 6px;
  font-weight: 650;
}

.steps p {
  font-size: 16px;
  line-height: 1.75;
  margin: 0;
  color: #536051;
}

.steps strong {
  color: var(--ink);
  font-weight: 600;
}

.note-box {
  display: flex;
  gap: 15px;
  padding: 20px 23px;
  background: var(--soft);
  border-left: 2px solid #81965b;
}

.note-symbol {
  font-size: 25px;
  line-height: 1;
}

.note-box h3 {
  font-size: 16px;
}

.note-box p {
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  color: #536051;
}

.install-path {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  background: var(--soft);
  padding: 17px 20px;
  margin: 25px 0;
  font-size: 16px;
  font-weight: 600;
}

.install-path span:nth-child(even) {
  color: #829066;
}

.guide-section>p:not(.eyebrow):not(.section-intro) {
  font-size: 16px;
  color: #536051;
}

.key-note {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-top: 25px;
}

.faq-search {
  margin: 29px 0 8px;
}

.faq-search label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  margin-bottom: 7px;
}

.search-row {
  border: 1px solid #aab59b;
  display: flex;
  align-items: center;
  background: #faf9f3;
  min-height: 49px;
}

.search-symbol {
  font-size: 27px;
  line-height: 1;
  padding-left: 15px;
  color: #657750;
}

.search-row input {
  min-width: 0;
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 16px;
  padding: 13px 10px;
  outline-offset: -3px;
}

.search-row input::placeholder {
  color: #78816f;
}

.search-row button {
  margin-right: 8px;
  border: 0;
  padding: 5px 9px;
  color: #455b3d;
  background: #e9eddf;
  font-size: 10px;
  cursor: pointer;
}

.search-row button:hover {
  background: #d8e0c8;
}

.search-count {
  font-size: 10px;
  color: var(--muted);
  min-height: 18px;
  margin: 7px 0 15px;
}

.faq-answers {
  border-top: 1px solid var(--line);
  margin-top: 24px;
}

.faq-search:not([hidden])~.faq-answers {
  margin-top: 0;
}

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

.faq-answers summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 550;
  padding: 20px 0;
}

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

.faq-answers summary::after {
  content: '+';
  font-size: 21px;
  font-weight: 400;
  line-height: 1;
  flex-shrink: 0;
}

.faq-answers details[open] summary::after {
  content: '−';
}

.faq-answers details[open] summary {
  padding-bottom: 10px;
}

.answer p {
  font-size: 16px;
  line-height: 1.8;
  color: #536051;
  margin: 0;
  padding: 0 35px 22px 0;
}

.empty-message {
  background: var(--soft);
  padding: 20px;
  font-size: 13px;
}

.faq-section {
  border-bottom: 0;
  padding-bottom: 0;
}

.sources-section {
  padding-bottom: 0;
  border: 0;
  margin-bottom: 65px;
}

.source-list {
  list-style: none;
  padding: 0;
  margin: 23px 0 0;
  border-top: 1px solid var(--line);
}

.source-list li {
  border-bottom: 1px solid var(--line);
}

.source-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  padding: 16px 0;
  gap: 20px;
  font-size: 16px;
}

.source-list a:hover>span:first-child {
  text-decoration: underline;
}

.source-list small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
  letter-spacing: .15px;
}

.source-list a>span:last-child {
  font-size: 18px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 30px 0 38px;
  border-top: 1px solid var(--ink);
}

.footer-brand {
  font: 18px var(--serif);
  letter-spacing: .7px;
  text-decoration: none;
}

.footer-brand span {
  font: 8px var(--sans);
  letter-spacing: 1px;
  margin-left: 9px;
}

.site-footer p {
  font-size: 9px;
  color: var(--muted);
  margin: 9px 0 0;
}

.site-footer .last-checked {
  text-align: right;
  margin: 0;
  white-space: nowrap;
  line-height: 1.8;
}

.last-checked time {
  color: var(--ink);
}

@media (min-width: 1450px) {
  .hero {
    gap: 100px;
  }

  .hero h1 {
    font-size: 94px;
  }

}

@media (max-width: 1000px) {
  .page-width {
    width: calc(100% - 64px);
  }

  .hero {
    gap: 36px;
    padding-top: 46px;
  }

  .field-art {
    min-height: 400px;
  }

  .forest-art {
    height: 300px;
  }

  .art-topline {
    font-size: 6px;
    letter-spacing: .7px;
  }

  .guide-layout {
    grid-template-columns: 165px minmax(0,1fr);
    gap: 40px;
  }

  .date-panel {
    gap: 15px;
  }

  .date-value {
    font-size: 17px;
  }

  .date-context {
    font-size: 14px;
    padding-left: 13px;
  }

  .date-panel h2 {
    font-size: 22px;
  }

  .hero-intro {
    font-size: 15px;
  }

  .hero-caption {
    font-size: 12px;
  }

}

@media (max-width: 720px) {
  .page-width {
    width: calc(100% - 40px);
  }

  .site-header {
    min-height: 82px;
    gap: 15px;
  }

  .wordmark {
    font-size: 18px;
    gap: 7px;
  }

  .brand-mark {
    font-size: 29px;
  }

  .wordmark-note {
    font-size: 7px;
    letter-spacing: 1px;
    margin-left: 2px;
    padding-left: 9px;
    max-width: 40px;
  }

  .site-header nav {
    gap: 18px;
    font-size: 11px;
  }

  .site-header nav a:first-child {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0 35px;
  }

  .hero .eyebrow {
    font-size: 9px;
    margin-bottom: 21px;
  }

  h1 {
    font-size: 69px;
    letter-spacing: -3px;
  }

  h1 span {
    letter-spacing: -2px;
  }

  .hero-intro {
    font-size: 16px;
    margin-bottom: 25px;
  }

  .desktop-break {
    display: none;
  }

  .hero-caption {
    font-size: 12px;
    max-width: none;
  }

  .field-art {
    min-height: 0;
    height: 295px;
    padding: 15px 18px;
  }

  .forest-art {
    height: 220px;
    position: absolute;
    inset: 27px 0 auto;
    width: 100%;
  }

  .art-topline {
    font-size: 7px;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
  }

  .art-bottomline {
    position: relative;
    z-index: 1;
    margin-top: auto;
    font-size: 8px;
  }

  .art-symbol {
    font-size: 27px;
  }

  .date-panel {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 24px 0;
  }

  .date-label {
    grid-column: 1/-1;
    display: flex;
    align-items: center;
    gap: 15px;
  }

  .date-panel .eyebrow {
    margin: 0;
  }

  .date-panel h2 {
    font-size: 23px;
  }

  .date-value {
    font-size: 19px;
  }

  .date-caption {
    font-size: 7px;
    letter-spacing: 1px;
    gap: 5px;
  }

  .date-note {
    font-size: 14px;
  }

  .date-context {
    grid-column: 1/-1;
    padding-left: 0;
    border-left: 0;
    font-size: 14px;
  }

  .date-context br {
    display: none;
  }

  .guide-layout {
    display: block;
    padding-top: 36px;
  }

  .contents {
    position: static;
    border-bottom: 1px solid var(--line);
    padding-bottom: 26px;
    margin-bottom: 36px;
  }

  .contents .eyebrow {
    margin-bottom: 14px;
    font-size: 8px;
  }

  .contents nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 20px;
    font-size: 11px;
  }

  .contents nav span {
    width: 20px;
  }

  .rail-note {
    display: none;
  }

  .guide-section {
    padding-bottom: 35px;
    margin-bottom: 36px;
  }

  .guide-section h2 {
    font-size: 32px;
  }

  .section-intro {
    font-size: 16px;
    line-height: 1.75;
    margin-bottom: 25px;
  }

  .steps {
    gap: 24px;
  }

  .steps li {
    gap: 15px;
  }

  .steps h3 {
    font-size: 17px;
  }

  .steps p {
    font-size: 16px;
  }

  .step-number {
    flex-basis: 30px;
    height: 30px;
    font-size: 14px;
  }

  .note-box {
    padding: 17px;
  }

  .note-box p {
    font-size: 16px;
  }

  .install-path {
    font-size: 16px;
    gap: 10px;
    padding: 15px;
  }

  .faq-answers summary {
    font-size: 16px;
    padding: 18px 0;
    gap: 15px;
  }

  .answer p {
    font-size: 16px;
    padding-right: 15px;
  }

  .faq-section {
    padding-bottom: 0;
  }

  .sources-section {
    padding-bottom: 0;
    margin-bottom: 43px;
  }

  .site-footer {
    padding: 25px 0 30px;
    gap: 20px;
  }

  .site-footer p {
    font-size: 8px;
    max-width: 245px;
  }

  .footer-brand {
    font-size: 16px;
  }

  .footer-brand span {
    font-size: 6px;
    margin-left: 5px;
  }

  .site-footer .last-checked {
    font-size: 8px;
  }

  .source-list a {
    font-size: 16px;
  }

  .source-list small {
    font-size: 12px;
  }

}

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

  * {
    transition: none!important;
  }

}