/* V11: styles for the added guide only. Original style.css stays unchanged. */
.guide-section { background: var(--wash); border-top: 1px solid var(--line); }
.guide-section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; }
.guide-section-heading > div { max-width: 800px; }
.guide-section-heading > .button { flex-shrink: 0; }
.guide-section-lead { max-width: 760px; margin-top: 20px; color: var(--muted); font-size: 20px; line-height: 1.7; }
.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.guide-card { min-width: 0; display: flex; flex-direction: column; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: var(--paper); }
.guide-card-top { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.guide-card-category { color: var(--accent-dark); font-size: 15px; font-weight: 700; }
.guide-card h3 { font-size: 25px; line-height: 1.3; letter-spacing: -.025em; text-wrap: pretty; }
.guide-card h3 a { text-decoration: none; }
.guide-card h3 a:hover { text-decoration: underline; text-decoration-thickness: 1.5px; }
.guide-card > p { margin: 16px 0 26px; color: var(--muted); font-size: 18px; line-height: 1.7; }
.guide-card-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); }
.guide-card-bottom > span { color: var(--muted); font-size: 14px; }
.guide-read-more { display: inline-flex; align-items: center; gap: 9px; min-height: 40px; color: var(--accent-dark); font-size: 16px; font-weight: 700; text-decoration: none; }
.guide-read-more:hover { text-decoration: underline; }
.guide-read-more .icon { width: 19px; height: 19px; }
.guide-page .guide-nav-link { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 6px; }
.guide-index-main, .guide-article-main { padding: 32px 0 72px; }
.guide-breadcrumbs { margin-bottom: 36px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.guide-breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 0; padding: 0; list-style: none; }
.guide-breadcrumbs li { display: inline-flex; gap: 10px; align-items: baseline; }
.guide-breadcrumbs li + li::before { content: "/"; color: var(--muted); }
.guide-breadcrumbs a { text-decoration: none; }
.guide-breadcrumbs a:hover { text-decoration: underline; }
.guide-index-heading { max-width: 940px; margin-bottom: 44px; }
.guide-index-heading h1 { font-size: clamp(36px, 4.5vw, 58px); }
.guide-intro { max-width: 960px; margin-top: 24px; color: var(--muted); font-size: 22px; line-height: 1.7; }
.guide-article-header { max-width: 1040px; padding-bottom: 36px; border-bottom: 1px solid var(--line); }
.guide-article-header h1 { font-size: clamp(32px, 4vw, 53px); line-height: 1.14; letter-spacing: -.035em; text-wrap: pretty; }
.guide-byline { display: flex; flex-wrap: wrap; gap: 8px 12px; margin-top: 24px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.guide-article-layout { display: grid; grid-template-columns: 260px minmax(0, 790px); align-items: start; gap: 64px; margin-top: 44px; }
.guide-toc { position: sticky; top: 114px; padding: 23px; border: 1px solid var(--line); border-radius: 18px; background: var(--wash); font-size: 15px; line-height: 1.65; }
.guide-toc > p { font-size: 16px; font-weight: 750; }
.guide-toc ol { margin: 16px 0 0; padding-left: 19px; }
.guide-toc li + li { margin-top: 13px; }
.guide-toc a { color: var(--muted); text-decoration: none; }
.guide-toc a:hover { color: var(--accent-dark); text-decoration: underline; }
.guide-toc-back { display: block; margin-top: 22px; padding-top: 17px; border-top: 1px solid var(--line); font-size: 14px; font-weight: 650; }
.guide-prose { min-width: 0; font-size: 19px; line-height: 1.8; }
.guide-prose section { scroll-margin-top: 16px; }
.guide-prose section + section { margin-top: 40px; padding-top: 34px; border-top: 1px solid var(--line); }
.guide-prose h2 { margin-bottom: 20px; font-size: clamp(25px, 2.7vw, 32px); line-height: 1.25; letter-spacing: -.025em; text-wrap: pretty; }
.guide-prose h3 { margin: 26px 0 14px; font-size: 24px; }
.guide-prose p + p { margin-top: 18px; }
.guide-prose a { color: var(--accent-dark); text-decoration-thickness: 1px; }
.guide-prose ul, .guide-prose ol { margin: 18px 0 22px; padding-left: 27px; }
.guide-prose li + li { margin-top: 12px; }
.guide-prose .guide-steps li + li { margin-top: 18px; }
.guide-quote { margin: 24px 0; padding: 24px 28px; border-left: 4px solid var(--accent); border-radius: 0 14px 14px 0; background: var(--mint); font-size: 21px; font-weight: 600; line-height: 1.65; }
.guide-note { margin: 24px 0; padding: 23px 25px; border: 1px solid var(--mint-line); border-radius: 16px; background: var(--wash); font-size: 17px; line-height: 1.75; }
.guide-formula { display: flex; flex-direction: column; gap: 9px; margin: 22px 0; padding: 25px; border: 1px solid var(--mint-line); border-radius: 16px; background: var(--mint); }
.guide-formula span { color: var(--muted); font-size: 15px; }
.guide-formula strong { font-size: 24px; line-height: 1.5; }
.guide-table-wrap { max-width: 100%; margin: 22px 0; overflow-x: auto; overscroll-behavior-x: contain; scrollbar-color: var(--mint-line) var(--wash); }
.guide-table-wrap:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.guide-table { width: 100%; border-collapse: collapse; font-size: 16px; line-height: 1.65; }
.guide-table caption { padding-bottom: 14px; color: var(--muted); font-size: 14px; text-align: left; }
.guide-table th, .guide-table td { padding: 14px 15px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.guide-table thead th { background: var(--mint); font-weight: 700; }
.guide-table tbody th { background: var(--wash); font-weight: 650; }
.guide-cost-table { min-width: 510px; font-variant-numeric: tabular-nums; }
.guide-cost-table td { white-space: nowrap; }
.guide-comparison-table { min-width: 640px; table-layout: fixed; }
.guide-comparison-table th:first-child { width: 24%; }
.guide-cta { display: flex; align-items: center; justify-content: space-between; gap: 36px; margin-top: 60px; padding: 38px 40px; border: 1px solid var(--mint-line); border-radius: 24px; background: var(--mint); }
.guide-cta h2 { font-size: clamp(27px, 3vw, 36px); }
.guide-cta p:not(.kicker) { max-width: 670px; margin-top: 16px; color: var(--muted); font-size: 18px; line-height: 1.7; }
.guide-cta-actions { display: flex; flex-direction: column; align-items: center; flex-shrink: 0; gap: 17px; }
.guide-text-link { color: var(--accent-dark); font-size: 16px; font-weight: 650; }
.guide-related { margin-top: 48px; }
.guide-related h2 { margin-bottom: 20px; font-size: 28px; }
.guide-related-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.guide-related-links a { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 22px; border: 1px solid var(--line); border-radius: 15px; text-decoration: none; font-size: 17px; line-height: 1.55; font-weight: 650; }
.guide-related-links a:hover { background: var(--wash); border-color: var(--mint-line); }
.guide-related-links .icon { width: 20px; height: 20px; margin-top: 3px; }

/* Space for the one additional desktop nav link, without changing other sections. */
@media (min-width: 941px) and (max-width: 1060px) {
  .site-nav { gap: 12px; }
  .header-inner { gap: 16px; }
}
@media (max-width: 1100px) {
  .guide-section-heading { align-items: flex-start; flex-direction: column; gap: 24px; }
  .guide-article-layout { grid-template-columns: 1fr; gap: 32px; }
  .guide-toc { position: static; }
  .guide-toc ol { columns: 2; column-gap: 40px; }
  .guide-toc li { break-inside: avoid; }
  .guide-prose { max-width: 820px; }
  .guide-cta { padding: 32px; }
}
@media (max-width: 760px) {
  .guide-grid { grid-template-columns: 1fr; gap: 18px; }
  .guide-card { padding: 25px; }
  .guide-card-top { margin-bottom: 20px; }
  .guide-card h3 { font-size: 24px; }
  .guide-card > p { font-size: 17px; }
  .guide-section-lead { font-size: 18px; }
  .guide-index-main, .guide-article-main { padding: 24px 0 48px; }
  .guide-breadcrumbs { margin-bottom: 28px; font-size: 13px; }
  .guide-intro { font-size: 19px; margin-top: 20px; }
  .guide-byline { font-size: 13px; gap: 7px 10px; }
  .guide-article-header { padding-bottom: 28px; }
  .guide-article-layout { margin-top: 28px; }
  .guide-toc ol { columns: 1; }
  .guide-prose { font-size: 18px; line-height: 1.8; }
  .guide-prose section + section { margin-top: 32px; padding-top: 28px; }
  .guide-quote { padding: 21px 23px; font-size: 20px; }
  .guide-note { padding: 20px; font-size: 16px; }
  .guide-formula { padding: 22px; }
  .guide-formula strong { font-size: 21px; }
  .guide-cta { flex-direction: column; align-items: flex-start; margin-top: 40px; padding: 28px; gap: 26px; }
  .guide-cta-actions { align-items: flex-start; }
  .guide-related-links { grid-template-columns: 1fr; gap: 12px; }
  .guide-related { margin-top: 36px; }
}
@media (max-width: 430px) {
  .guide-card { padding: 23px; border-radius: 20px; }
  .guide-card h3 { font-size: 23px; }
  .guide-card-bottom { gap: 10px; }
  .guide-section-lead { font-size: 17px; }
  .guide-article-header h1 { font-size: 32px; }
  .guide-prose { font-size: 17px; }
  .guide-intro { font-size: 18px; }
  .guide-toc { padding: 20px; }
  .guide-quote { padding: 20px; font-size: 19px; }
  .guide-cta { padding: 24px; }
  .guide-cta p:not(.kicker) { font-size: 17px; }
}
@media print {
  .guide-toc, .guide-breadcrumbs, .guide-cta, .guide-related, .guide-card-bottom { display: none; }
  .guide-article-layout { display: block; margin-top: 28px; }
  .guide-prose { max-width: none; font-size: 11pt; }
  .guide-article-header h1 { font-size: 26pt; }
  .guide-prose h2 { font-size: 18pt; }
  .guide-table-wrap { overflow: visible; }
  .guide-table { min-width: 0; font-size: 9pt; }
  .guide-card, .guide-note, .guide-quote { break-inside: avoid; }
  .guide-grid { grid-template-columns: 1fr; }
  .guide-section { background: white; }
  .guide-page .site-footer { padding-top: 24px; }
}

/* Additional guide entry and its source notes; existing elements are unchanged. */
.guide-grid > .guide-card-wide { grid-column: 1 / -1; }
.guide-card-wide > p { max-width: 920px; }
.guide-prose .guide-sources { font-size: 15px; line-height: 1.75; }
.guide-sources li { scroll-margin-top: 120px; }
@media print { .guide-prose .guide-sources { font-size: 9pt; } }