.site-shell.site-shell--catalog,
.site-shell.site-shell--guide {
  display: block;
  height: auto;
  min-height: 100svh;
  overflow: visible;
}
.site-shell--catalog > main { display: block; min-height: 0; }
.site-shell--catalog .hero { padding-block: clamp(36px, 5vw, 76px); }
.hero-title__descriptor {
  display: block;
  margin-top: 18px;
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -.035em;
}
.feature-catalog,
.guide-page {
  --guide-ink: #172b27;
  --guide-muted: #596963;
  --guide-green: #216d4e;
  --guide-line: #d9e3db;
  --guide-paper: #f3f6ef;
  color: var(--guide-ink);
}
.feature-catalog { width: min(1240px, calc(100% - 48px)); margin: 72px auto; scroll-margin-top: 24px; }
.certificate-page .feature-catalog { width: 100%; margin: 56px 0 8px; }
.feature-catalog__intro { max-width: 740px; margin-bottom: 32px; }
.feature-catalog__eyebrow,
.feature-overview-card__category {
  display: block;
  font-size: 11px;
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
  color: var(--guide-green);
}
.feature-catalog__intro h2 { margin: 15px 0; font-size: clamp(28px, 4.2vw, 48px); line-height: 1.1; letter-spacing: -.045em; }
.feature-catalog__intro > p { max-width: 590px; margin: 0; font-size: 16px; line-height: 1.75; color: var(--guide-muted); }
.feature-catalog__grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.feature-overview-card {
  grid-column: span 2;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--guide-line);
  border-radius: 22px;
  background: #fff;
  color: var(--guide-ink);
  text-decoration: none;
}
.feature-overview-card:hover { border-color: #72997b; }
.feature-overview-card:focus-visible,
.guide-page a:focus-visible { outline: 3px solid #318c62; outline-offset: 4px; }
.feature-overview-card--featured { grid-column: span 3; padding: 32px; background: radial-gradient(ellipse at 100% 0, #dceccd, transparent 65%), #f1f6e9; }
.feature-overview-card--ink { background: radial-gradient(ellipse at 100% 0, #305d45, transparent 80%), #1b342c; color: #f1f7ec; border-color: #294a3c; }
.feature-overview-card__top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 26px; }
.feature-overview-card__icon { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid #dae7d6; border-radius: 14px; background: #f2f6ed; color: #286044; }
.feature-overview-card__number { font-size: 12px; font-variant-numeric: tabular-nums; color: #67766c; }
.feature-overview-card h3 { margin: 10px 0 12px; font-size: 23px; line-height: 1.2; letter-spacing: -.035em; overflow-wrap: anywhere; }
.feature-overview-card--featured h3 { max-width: 430px; font-size: clamp(26px, 3vw, 34px); }
.feature-overview-card > p { margin: 0 0 22px; font-size: 14px; line-height: 1.75; color: var(--guide-muted); }
.feature-overview-card__access { align-self: flex-start; margin-top: auto; padding: 5px 9px; border-radius: 6px; background: #eef4e9; color: #345a3e; font-size: 11px; font-weight: 650; line-height: 1.5; }
.feature-overview-card__link { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--guide-line); font-size: 13px; font-weight: 650; }
.feature-overview-card__link svg { flex-shrink: 0; }
.feature-overview-card--ink .feature-overview-card__category,
.feature-overview-card--ink .feature-overview-card__number { color: #bbd7bb; }
.feature-overview-card--ink > p { color: #d1dfd2; }
.feature-overview-card--ink .feature-overview-card__icon,
.feature-overview-card--ink .feature-overview-card__access { background: #355143; border-color: #4a6651; color: #e2f1dc; }
.feature-overview-card--ink .feature-overview-card__link { border-color: #486251; }
.feature-access-note { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; margin-top: 24px; padding: 32px; border: 1px solid var(--guide-line); border-radius: 22px; background: var(--guide-paper); }
.feature-access-note h3 { margin: 12px 0; font-size: 25px; line-height: 1.25; letter-spacing: -.03em; }
.feature-access-note p { margin: 0 0 12px; font-size: 13px; line-height: 1.85; color: var(--guide-muted); }
.feature-access-note p:last-child { margin-bottom: 0; }
.feature-access-note a,
.guide-page a:not(.guide-related-card) { color: var(--guide-green); text-underline-offset: 4px; }
.guide-page { width: min(1100px, calc(100% - 48px)); margin: 28px auto 72px; }
.guide-breadcrumbs { margin: 0 0 44px; }
.guide-breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 0; padding: 0; list-style: none; color: var(--guide-muted); font-size: 12px; line-height: 1.6; }
.guide-breadcrumbs li + li::before { content: "/"; margin-right: 10px; color: #98a69b; }
.guide-intro { max-width: 900px; margin-bottom: 40px; }
.guide-intro__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-bottom: 20px; }
.guide-intro__access { padding: 5px 10px; border: 1px solid var(--guide-line); border-radius: 8px; color: #365641; font-size: 11px; line-height: 1.5; }
.guide-intro h1 { margin: 0 0 24px; max-width: 850px; font-size: clamp(32px, 5vw, 59px); line-height: 1.06; letter-spacing: -.045em; overflow-wrap: anywhere; }
.guide-intro__lead { max-width: 770px; margin: 0 0 20px; font-size: clamp(16px, 1.8vw, 19px); line-height: 1.75; color: var(--guide-muted); }
.guide-intro__updated { font-size: 11px; color: var(--guide-muted); }
.guide-layout { display: grid; grid-template-columns: minmax(0, 1fr) 252px; gap: 50px; align-items: start; }
.guide-content { min-width: 0; }
.guide-section { padding: 32px 0; border-top: 1px solid var(--guide-line); scroll-margin-top: 24px; }
.guide-section h2 { margin: 0 0 22px; font-size: 27px; line-height: 1.2; letter-spacing: -.035em; }
.guide-section p,
.guide-section li { font-size: 15px; line-height: 1.8; color: var(--guide-muted); }
.guide-section p { margin: 0 0 16px; }
.guide-section p:last-child { margin-bottom: 0; }
.guide-benefits,
.guide-notes { padding-left: 22px; margin: 0; }
.guide-benefits li,
.guide-notes li { padding-left: 5px; margin: 9px 0; }
.guide-benefits li::marker,
.guide-notes li::marker { color: var(--guide-green); }
.guide-entry { margin-bottom: 20px !important; padding: 16px 20px; border-left: 3px solid #5f8f5c; background: var(--guide-paper); border-radius: 0 12px 12px 0; color: #314b39 !important; }
.guide-steps { list-style: none; counter-reset: guide-step; margin: 0; padding: 0; display: grid; gap: 12px; }
.guide-steps > li { position: relative; counter-increment: guide-step; padding: 22px 24px 22px 76px; border: 1px solid var(--guide-line); border-radius: 16px; background: #fff; }
.guide-steps > li::before { content: counter(guide-step, decimal-leading-zero); position: absolute; top: 21px; left: 23px; color: #437b4e; font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; }
.guide-steps h3 { margin: 0 0 8px; color: var(--guide-ink); font-size: 17px; line-height: 1.35; }
.guide-steps p { margin: 0; font-size: 14px; }
.guide-section--access { margin-top: 8px; padding: 26px; border: 1px solid #cbdcbe; border-radius: 18px; background: linear-gradient(130deg, #f2f7e9, #f8faf4); }
.guide-section--access h2 { font-size: 24px; }
.guide-section--access p { font-size: 14px; }
.guide-section--access + .guide-section { border-top: 0; }
.guide-toc { position: sticky; top: 24px; padding: 23px; border: 1px solid var(--guide-line); border-radius: 18px; background: var(--guide-paper); }
.guide-toc > strong { display: block; margin-bottom: 15px; font-size: 13px; }
.guide-toc ol { display: grid; gap: 14px; list-style: none; padding: 0; margin: 0; }
.guide-toc li { font-size: 13px; line-height: 1.6; }
.guide-toc a { text-decoration: none; }
.guide-toc a:hover { text-decoration: underline; }
.guide-toc__download { display: block; margin-top: 23px; padding-top: 20px; border-top: 1px solid var(--guide-line); font-weight: 700; }
.guide-related { margin-top: 14px; }
.guide-related__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.guide-related-card { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; min-width: 0; padding: 22px; border: 1px solid var(--guide-line); border-radius: 16px; text-decoration: none; color: var(--guide-ink); background: #fff; }
.guide-related-card:hover { border-color: #72997b; }
.guide-related-card h3 { margin: 0; font-size: 18px; line-height: 1.3; letter-spacing: -.025em; }
.guide-related-card p { margin: 0; font-size: 13px; line-height: 1.7; color: var(--guide-muted); }
.guide-related-card > span:last-child { margin-top: auto; font-size: 12px; color: var(--guide-green); }
.site-shell--guide .site-footer a { color: inherit; text-underline-offset: 4px; }
@media (max-width: 960px) {
  .feature-catalog__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-overview-card,
  .feature-overview-card--featured { grid-column: span 1; padding: 24px; }
  .guide-layout { grid-template-columns: minmax(0, 1fr) 220px; gap: 25px; }
}
@media (max-width: 760px) {
  .feature-access-note { grid-template-columns: minmax(0, 1fr); gap: 18px; padding: 24px; }
  .guide-layout { display: flex; flex-direction: column; gap: 26px; }
  .guide-content { width: 100%; }
  .guide-toc { position: static; order: -1; width: 100%; }
  .guide-toc ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .guide-related__grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
  .feature-catalog { width: calc(100% - 28px); margin: 48px auto; }
  .feature-catalog__grid { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .feature-overview-card,
  .feature-overview-card--featured { padding: 24px; }
  .feature-catalog__intro > p { font-size: 14px; }
  .feature-access-note { padding: 22px; }
  .guide-page { width: calc(100% - 28px); margin-top: 22px; margin-bottom: 46px; }
  .guide-breadcrumbs { margin-bottom: 28px; }
  .guide-intro { margin-bottom: 28px; }
  .guide-section { padding-block: 25px; }
  .guide-section h2 { font-size: 24px; }
  .guide-section--access { padding: 22px; }
  .guide-steps > li { padding: 20px; }
  .guide-steps > li::before { position: static; display: block; margin-bottom: 10px; }
}

.guide-skip-link {
  position: absolute; top: 8px; left: 14px; z-index: 100;
  padding: 12px 18px; border-radius: 8px; background: #172b27; color: #fff;
  transform: translateY(-150%);
}
.guide-skip-link:focus { transform: translateY(0); }