:root {
  --ds-ink: #182c30;
  --ds-ink-soft: #354c4d;
  --ds-muted: #596763;
  --ds-paper: #faf9f5;
  --ds-paper-soft: #f0f0e8;
  --ds-line: #d7dbcf;
  --ds-accent: #ad421f;
  --ds-accent-ink: #ffffff;
  --ds-warn: #914b13;
  --ds-ok: #34644a;
  --atlas-sage: #dce3d5;
  --atlas-wash: #f7e9dd;
  --atlas-night: #182c30;
  --atlas-light: #faf9f5;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; }
img, svg { max-width: 100%; }
button, input, select { font: inherit; }
button, a, input, select, summary { -webkit-tap-highlight-color: transparent; }
button { color: var(--ds-ink); }
[hidden] { display: none !important; }
p { max-width: 68ch; }
a { text-decoration-skip-ink: auto; }
.skip-link { position: absolute; left: 1rem; top: -6rem; z-index: 5; padding: 1rem; background: var(--ds-paper); }
.skip-link:focus { top: 1rem; }
.site-header { border-bottom: 1px solid var(--ds-line); }
.header-inner { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ds-ink); text-decoration: none; font-weight: 800; letter-spacing: -.04em; white-space: nowrap; }
.brand svg { width: 37px; height: 37px; color: var(--ds-accent); }
.brand span { font-size: inherit; }
.header-nav { display: flex; gap: 27px; flex-wrap: wrap; align-items: center; }
.header-nav a { font-size: var(--ds-font-small); font-weight: 700; text-decoration: none; color: var(--ds-ink-soft); padding-block: 10px; }
.header-nav a:hover, .header-nav a[aria-current="page"] { color: var(--ds-accent); text-decoration: underline; }
.header-nav .nav-cta { border: 1px solid var(--ds-line); padding: 9px 16px; border-radius: var(--ds-radius-sm); }
.eyebrow, .label, .badge { font-size: var(--ds-font-small); font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--ds-accent); margin-bottom: 22px; }
.eyebrow::before { content: ''; width: 24px; height: 2px; background: currentColor; }
.hero { padding-top: 60px; padding-bottom: 36px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr 1fr; gap: 48px; align-items: center; }
h1, h2, h3 { font-family: Georgia, 'Times New Roman', serif; font-weight: 500; }
h1 { max-width: 14ch; }
h1 em { color: var(--ds-accent); font-style: normal; }
.hero-copy > p { color: var(--ds-ink-soft); }
.hero-copy .intro { margin-top: 22px; margin-bottom: 28px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.ds-btn { transition: transform .15s ease, background .15s ease; }
.ds-btn:hover { transform: translateY(-2px); text-decoration: none; }
.ds-btn--primary:hover { background: var(--ds-ink); }
.arrow { margin-left: 10px; }
.trust { font-size: var(--ds-font-small); margin-top: 19px; color: var(--ds-muted); }
.hero-art { margin: 0; position: relative; border-radius: var(--ds-radius); overflow: hidden; background: var(--atlas-sage); }
.hero-art img { width: 100%; height: auto; display: block; }
.hero-art figcaption { font-size: var(--ds-font-small); padding: 10px 18px; border-top: 1px solid var(--ds-line); color: var(--ds-ink-soft); }
.status-strip { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ds-line); border-bottom: 1px solid var(--ds-line); margin-top: 40px; padding-block: 20px; gap: 20px; }
.status-strip > div { padding-left: 24px; border-left: 1px solid var(--ds-line); }
.status-strip > div:first-child { border: 0; padding-left: 0; }
.status-strip span { display: block; color: var(--ds-muted); font-size: var(--ds-font-small); }
.status-strip strong { display: block; font-weight: 600; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ds-warn); margin-right: 6px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 26px; }
.section-heading p { color: var(--ds-muted); margin-bottom: 0; max-width: 42ch; }
.section-heading .eyebrow { margin-bottom: 12px; }
.section-heading h2 { margin-bottom: 0; }
.surface { background: var(--ds-paper-soft); border-block: 1px solid var(--ds-line); }
.access-panel { display: grid; grid-template-columns: .78fr 1.22fr; border: 1px solid var(--ds-line); border-radius: var(--ds-radius); background: var(--ds-paper); overflow: hidden; }
.access-options { padding: 28px; border-right: 1px solid var(--ds-line); }
fieldset { padding: 0; margin: 0; border: 0; }
legend { margin-bottom: 16px; font-weight: 700; }
.platforms { display: flex; flex-direction: column; gap: 9px; }
.platform { display: flex; align-items: center; gap: 12px; min-height: 54px; border: 1px solid var(--ds-line); border-radius: var(--ds-radius-sm); padding: 9px 14px; cursor: pointer; }
.platform:has(input:checked) { border-color: var(--ds-accent); background: var(--atlas-wash); }
input { accent-color: var(--ds-accent); }
.platform span { flex: 1; }
.platform small { font-size: var(--ds-font-small); color: var(--ds-muted); }
.access-result { padding: 28px 34px; }
.badge { display: inline-flex; padding: 4px 9px; border: 1px solid var(--ds-line); border-radius: 4px; background: var(--ds-paper-soft); letter-spacing: .035em; }
.badge--warn { color: var(--ds-warn); background: var(--atlas-wash); border: 0; }
.access-result h3 { margin-top: 17px; }
.access-result > p { color: var(--ds-ink-soft); }
.text-link { font-weight: 700; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.note { font-size: var(--ds-font-small); color: var(--ds-muted); margin-top: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.guide-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.card-top { padding: 21px 25px; background: var(--atlas-sage); min-height: 140px; display: flex; align-items: center; justify-content: space-between; }
.card-top.warm { background: var(--atlas-wash); }
.card-top svg { width: 100px; height: 85px; }
.card-num { font-family: Georgia, serif; color: var(--ds-ink-soft); }
.card-body { padding: 25px; display: flex; flex: 1; flex-direction: column; align-items: start; }
.card-body p { color: var(--ds-muted); }
.card-body .text-link { margin-top: auto; }
.section-divider { border: 0; border-top: 1px solid var(--ds-line); margin: 0; }
.steps { list-style: none; counter-reset: steps; padding: 0; margin: 0; }
.steps li { position: relative; counter-increment: steps; padding: 0 0 27px 55px; margin: 0; }
.steps li::before { content: '0' counter(steps); position: absolute; left: 0; top: 0; font-weight: 700; color: var(--ds-accent); font-size: var(--ds-font-small); border: 1px solid var(--ds-line); width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; }
.steps p { color: var(--ds-muted); margin-top: 7px; }
.aside-note { padding: 30px; border-radius: var(--ds-radius); background: var(--atlas-sage); align-self: start; }
.aside-note .label { color: var(--ds-ink-soft); }
.aside-note h3 { margin-block: 17px; }
.aside-note p:last-child { margin-bottom: 0; }
.news-list { border-top: 1px solid var(--ds-line); }
.news-item { display: grid; grid-template-columns: 150px 1fr auto; align-items: start; gap: 24px; padding-block: 25px; border-bottom: 1px solid var(--ds-line); }
.news-item p { margin: 6px 0 0; color: var(--ds-muted); }
.news-item h3 { margin: 0; }
.news-date { font-size: var(--ds-font-small); color: var(--ds-muted); }
.news-item > a { font-size: var(--ds-font-small); font-weight: 700; white-space: nowrap; }
.table-scroll { overflow-x: auto; border: 1px solid var(--ds-line); border-radius: var(--ds-radius); }
table { width: 100%; min-width: 640px; border-collapse: collapse; background: var(--ds-paper); text-align: left; }
caption { text-align: left; padding: 18px; color: var(--ds-muted); }
td, th { padding: 18px 20px; border-bottom: 1px solid var(--ds-line); vertical-align: top; }
th { background: var(--ds-paper-soft); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
.comparison-table { min-width: 740px; }
.comparison-table th:first-child { width: 20%; }
.comparison-table th:nth-child(2) { color: var(--ds-accent); }
.faq-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: 60px; }
details { border-bottom: 1px solid var(--ds-line); }
summary { cursor: pointer; padding: 20px 28px 20px 0; font-weight: 600; }
details p { padding-right: 20px; color: var(--ds-ink-soft); }
.community { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; background: var(--atlas-night); color: var(--atlas-light); border-radius: var(--ds-radius); padding: 36px; }
.community p { margin-bottom: 0; }
.community .ds-btn { background: var(--atlas-light); color: var(--atlas-night); }
.community .label { color: var(--atlas-sage); }
.community h2 { margin-top: 12px; }
.sources { font-size: var(--ds-font-small); color: var(--ds-muted); }
.sources li, .sources p { font-size: inherit; }
.sources a { color: var(--ds-ink-soft); }
.sources h3 { color: var(--ds-ink); }
.site-footer { background: var(--ds-paper-soft); }
.site-footer .ds-wrap > p:first-child { font-size: var(--ds-font-small); }
.site-footer nav a { padding-block: 7px; }
.breadcrumbs { font-size: var(--ds-font-small); margin-bottom: 26px; color: var(--ds-muted); }
.article-hero { padding-top: 42px; padding-bottom: 35px; }
.article-hero h1 { max-width: 22ch; }
.article-hero .lead { color: var(--ds-ink-soft); max-width: 65ch; }
.article-body { padding-bottom: 64px; }
.article-body section { margin-top: 40px; }
.article-body h2 { max-width: 34ch; }
.article-body > p, .article-body > ul { max-width: 68ch; }
.callout { border-left: 3px solid var(--ds-accent); padding: 22px 26px; background: var(--atlas-wash); margin-block: 24px; }
.callout p:last-child { margin-bottom: 0; }
.tool { background: var(--ds-paper-soft); }
.tool-controls { display: flex; flex-wrap: wrap; align-items: end; gap: 18px; margin-bottom: 20px; }
.tool-controls label { display: flex; flex-direction: column; gap: 6px; flex: 1; min-width: 180px; }
input[type="search"], input[type="number"], select { min-height: 48px; padding: 10px 12px; border: 1px solid var(--ds-muted); border-radius: var(--ds-radius-sm); background: var(--ds-paper); color: var(--ds-ink); width: 100%; }
output { display: block; font-weight: 700; margin-top: 18px; }
.checklist { display: flex; flex-direction: column; gap: 12px; margin-block: 20px; }
.checklist label { display: flex; align-items: start; gap: 13px; padding: 13px; background: var(--ds-paper); border: 1px solid var(--ds-line); border-radius: var(--ds-radius-sm); }
.checklist input { margin-top: 8px; min-width: 18px; min-height: 18px; }
.progress-track { height: 8px; border-radius: 4px; background: var(--ds-line); overflow: hidden; }
.progress-fill { height: 100%; background: var(--ds-ok); width: 0; }
.related { border-top: 1px solid var(--ds-line); padding-top: 30px; margin-top: 40px; }
.related-links { display: flex; flex-wrap: wrap; gap: 12px 30px; }
.schematic { background: var(--atlas-sage); border-radius: var(--ds-radius); margin: 0; overflow: hidden; }
.schematic svg { width: 100%; display: block; }
.schematic figcaption { padding: 12px 20px; font-size: var(--ds-font-small); }
@media (min-width: 900px) { .hero h1 { font-size: clamp(2.1rem, 4.3vw, 3.5rem); } }
@media (max-width: 900px) {
  .hero-grid { gap: 26px; }
  .header-nav { gap: 18px; }
  .grid-3 { gap: 14px; }
  .card-body { padding: 20px; }
  .faq-grid { gap: 30px; }
  .news-item { grid-template-columns: 115px 1fr; }
  .news-item > a { grid-column: 2; }
}
@media (max-width: 700px) {
  .header-inner { flex-direction: column; align-items: start; gap: 8px; padding-block: 16px; }
  .header-nav { width: 100%; justify-content: space-between; gap: 6px 12px; }
  .header-nav .nav-cta { border: 0; padding-inline: 0; }
  .hero { padding-top: 32px; }
  .hero-grid, .grid-2, .grid-3, .faq-grid, .access-panel { grid-template-columns: 1fr; }
  h1 { font-size: clamp(2.1rem, 8vw, 2.4rem); }
  .hero-art { margin-top: 8px; }
  .hero-art img { max-height: 370px; object-fit: cover; }
  .status-strip { grid-template-columns: 1fr; margin-top: 28px; gap: 14px; }
  .status-strip > div { border: 0; padding: 0; display: flex; justify-content: space-between; align-items: baseline; gap: 14px; }
  .status-strip strong { text-align: right; }
  .section-heading { display: block; }
  .section-heading p { margin-top: 16px; }
  .access-options { border: 0; border-bottom: 1px solid var(--ds-line); padding: 22px; }
  .platforms { flex-direction: row; flex-wrap: wrap; }
  .platform { flex: 1; gap: 6px; padding: 10px; }
  .platform small { display: none; }
  .access-result { padding: 24px; }
  .news-item { grid-template-columns: 1fr; gap: 10px; }
  .news-item > a { grid-column: 1; }
  .community { grid-template-columns: 1fr; padding: 27px; }
  .faq-grid { gap: 10px; }
  .card-top { min-height: 110px; }
  .card-top svg { height: 70px; }
  .article-hero { padding-top: 25px; }
  td, th { padding: 14px; }
}
@media (prefers-reduced-motion: reduce) { .ds-btn { transition: none; } .ds-btn:hover { transform: none; } }

.access-instructions, .preparation-tools { margin-top: 28px; }
.preparation-tools { align-items: start; scroll-margin-top: 24px; }