.guide-layout{display:grid;grid-template-columns:190px minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:start;margin-top:64px;padding-top:36px;border-top:1px solid var(--rule)}
.guide-nav{position:sticky;top:20px;border-left:2px solid var(--blue-mid);padding:4px 0 4px 16px;min-width:0}
.guide-nav strong{display:block;color:var(--ink);margin-bottom:10px;font-size:15px}.guide-nav a{display:block;padding:7px 0;color:var(--secondary);font-size:14px;line-height:1.4;text-decoration:none}.guide-nav a:hover{color:var(--blue);text-decoration:underline}
.reading-column{min-width:0;max-width:880px}.reading-column .content-section{margin-top:36px;padding-top:30px;border-top:1px solid var(--rule)}
.reading-column .content-section:first-child{margin-top:0;padding-top:0;border:0}.reading-column .content-section>h2,.reading-column .sources>h2{margin:0 0 12px;color:var(--ink);font-size:var(--section-title);font-weight:650;line-height:1.25;letter-spacing:-.023em}
.reading-column h3{margin:18px 0 7px;color:var(--ink);font-size:19px;font-weight:650;line-height:1.35}
.reading-column p,.reading-column li{max-width:73ch;margin:10px 0;color:var(--secondary);font-size:16px;line-height:1.7}.reading-column strong{color:var(--ink)}
.reading-column a,.source-jump{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.reading-column a:hover{color:var(--blue-hover)}
.reading-column .check-list{margin:12px 0;padding-left:1.5em}.reading-column ol.check-list{list-style:decimal}.reading-column ul.check-list{list-style:disc}.reading-column .check-list li{padding-left:.25em}
.reading-column .comparison-table{font-size:15px;line-height:1.55;background:var(--surface);border:1px solid var(--rule);table-layout:fixed}.reading-column .comparison-table caption{text-align:left;font-weight:600;font-size:14px;margin:4px 0 10px}.reading-column .comparison-table th,.reading-column .comparison-table td{width:auto;padding:10px 12px}.reading-column .comparison-table thead{background:var(--blue-soft)}.reading-column .comparison-table td{color:var(--secondary)}.reading-column .comparison-table th:first-child{width:24%}
.illustration-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.94fr);gap:24px;align-items:start}.house-figure{margin:10px 0 0;background:var(--surface);border:1px solid var(--rule);border-radius:12px;overflow:hidden}.house-figure img{display:block;width:100%;height:auto;background:var(--blue-soft)}.house-figure figcaption{padding:12px 14px;font-size:13px;line-height:1.5;color:var(--secondary)}
.example-list .content-card{margin:16px 0;padding:4px 0 8px 18px;background:transparent;border:0;border-left:3px solid var(--blue-mid);border-radius:0}.example-list .content-card h3{margin:0 0 8px}.reading-column .equation{background:var(--blue-soft);border-left:2px solid var(--blue);font-variant-numeric:tabular-nums}
.deductible-diagram{margin:16px 0;padding:16px;background:var(--blue-soft);border:1px solid var(--blue-mid);border-radius:10px}.deductible-diagram .math-row{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.deductible-diagram .math-cell{display:grid;gap:3px}.deductible-diagram .math-cell b{color:var(--ink);font-size:clamp(19px,2.3vw,28px);font-weight:650;line-height:1.2;font-variant-numeric:tabular-nums}.deductible-diagram .math-cell small{color:var(--secondary);font-size:12px}.deductible-diagram .operator{color:var(--blue);font-size:22px}.deductible-diagram .math-result{padding:6px 10px;border-radius:6px;background:var(--blue)}.deductible-diagram .math-result b,.deductible-diagram .math-result small{color:var(--night-on-action, white)}.deductible-diagram figcaption{color:var(--secondary);margin-top:12px;font-size:13px;line-height:1.5}
.reading-column .faq details{padding:0}.reading-column .faq summary{padding:14px 0;font-size:16px;line-height:1.5}.reading-column .faq details p{padding:0 0 10px;margin-top:0}.method-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--rule)}
@media(max-width:900px){.guide-layout{grid-template-columns:minmax(0,1fr);gap:22px}.guide-nav{position:static}.guide-nav .link-list{display:flex;gap:0 18px;flex-wrap:wrap}.reading-column{max-width:100%}}
@media(max-width:640px){.brand-lockup{gap:8px}.brand-lockup img{width:28px;height:28px}.guide-layout{margin-top:40px;padding-top:24px}.illustration-layout{grid-template-columns:1fr;gap:6px}.reading-column .content-section{margin-top:26px;padding-top:22px}.reading-column .comparison-table{table-layout:auto}.reading-column .comparison-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.reading-column .comparison-table tbody tr{display:block;padding:8px 12px;border-bottom:1px solid var(--rule)}.reading-column .comparison-table tbody th,.reading-column .comparison-table tbody td{display:block;width:100%!important;border:0;padding:4px 0}.reading-column .comparison-table td[data-col]::before{content:attr(data-col) ': ';font-weight:600}.deductible-diagram .math-row{display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px}.deductible-diagram .math-cell:first-child{grid-column:2}.deductible-diagram .math-result{justify-self:start}.reading-column .sources{padding:18px}.example-list .content-card{padding-left:12px}.guide-nav a{padding:5px 0}}

.reading-column .comparison-table{border-collapse:collapse;width:100%;margin:18px 0}
.reading-column .comparison-table th,.reading-column .comparison-table td{text-align:left;vertical-align:top;border-bottom:1px solid var(--rule)}
.faq details{border-bottom:1px solid var(--rule)}.faq summary{cursor:pointer;font-weight:650;color:var(--ink)}
.reading-column .sources{margin-top:32px;padding:22px;background:var(--surface);border:1px solid var(--rule);border-radius:12px}
.reading-column .equation{padding:12px 16px}.reading-column .sources a{overflow-wrap:anywhere}
/* Full-width evidence can follow a paragraph without setting its line length. */
.reading-column .content-section > p,
.reading-column .check-list > li,
.reading-column .faq details > p { max-width: var(--reading-measure); }
@media print{.guide-layout{display:none}}

/* Home guide grids depend on the reading column, which can share a viewport
   with a section index. Keep a single reading order on smaller screens. */
@media screen {
  .guide-layout > .reading-column {
    max-width: none;
    container: home-reading / inline-size;
  }
  .example-list .content-card {
    margin: 1rem 0;
    padding: clamp(.9rem, 2vw, 1.45rem);
    border: 1px solid var(--rule);
    border-radius: var(--panel-radius);
    background: var(--surface);
  }
  .example-list .content-card h3 { margin: 0 0 .65rem; }
  .home-case-body > *, .home-case-reading > p, .home-method-grid > section { min-width: 0; }
  .home-case-body .home-case-input,
  .home-case-reading > p:first-child,
  .home-method-grid p { margin-top: 0; }
  .home-case-body > :last-child > p:last-child,
  .home-method-grid p { margin-bottom: 0; }
  .home-case-body .equation {
    margin-block: .65rem .9rem;
    padding: .7rem .85rem;
    line-height: 1.45;
    overflow-wrap: anywhere;
  }
  .home-case-body .deductible-diagram { container: home-math / inline-size; }
  .home-case-body .deductible-diagram .math-row {
    display: grid;
    grid-template-columns: 1.35rem minmax(0,1fr);
    align-items: center;
    justify-content: start;
    gap: .35rem .45rem;
  }
  .home-case-body .math-cell:first-child { grid-column: 2; }
  .home-case-body .math-result { justify-self: start; }
  .home-case-body .math-cell b { white-space: nowrap; }
  .home-method-grid { display: grid; gap: 0 1.6rem; }
  .home-method-grid section { padding: 1rem 0; border-top: 1px solid var(--rule); }
  .home-method-grid h3 { margin: 0 0 .4rem; font-size: 1.06rem; }
  .reading-column #methodology .method-note { max-width: var(--reading-measure); font-size: .95rem; }
  .home-source-pair h3 { margin: .7rem 0 .25rem; font-size: 1.05rem; }
  .home-source-pair p { margin-top: 0; }
}
@container home-math (min-width: 18rem) {
  .home-case-body .deductible-diagram .math-row {
    grid-template-columns: minmax(0,.84fr) auto minmax(0,1.1fr) auto minmax(0,1fr);
    gap: .3rem;
    align-items: center;
  }
  .home-case-body .math-cell:first-child { grid-column: auto; }
  .home-case-body .math-cell b { font-size: clamp(1.05rem, 5.8cqi, 1.55rem); }
  .home-case-body .math-cell small { line-height: 1.25; }
  .home-case-body .math-result { justify-self: stretch; padding: .4rem; }
}
@container home-reading (min-width: 42rem) {
  .home-price-readings, .home-method-grid, .home-case-body,
  .home-source-pair, .home-review-pair {
    display: grid;
    grid-template-columns: repeat(2,minmax(0,1fr));
    gap: 0 clamp(1.25rem, 3cqi, 2rem);
    align-items: start;
  }
  .reading-column .home-price-readings > .content-section {
    margin: 0;
    padding: 0;
    border: 0;
  }
  .reading-column .home-review-pair > .content-section {
    margin-top: 1.6rem;
    padding-top: 1rem;
    border-top: 1px solid var(--rule);
  }
  .home-source-pair > div { min-width: 0; }
  .home-case-body {
    grid-template-areas: "input reading" "result reading";
    grid-template-rows: auto 1fr;
  }
  .home-case-body .home-case-input { grid-area: input; }
  .home-case-body .equation, .home-case-body .deductible-diagram {
    grid-area: result;
    margin: 0;
  }
  .home-case-body .home-case-reading { grid-area: reading; }
  #home-deductible-example .home-case-body {
    grid-template-areas: "input result" "reading result";
    grid-template-columns: minmax(0,.94fr) minmax(0,1.06fr);
  }
}
@container home-reading (min-width: 48rem) {
  .reading-column .guide-section-intro,
  .reading-column #home-inputs {
    display: grid;
    grid-template-columns: minmax(0,.7fr) minmax(0,1.3fr);
    column-gap: clamp(1.5rem,3cqi,2.25rem);
    align-items: start;
  }
  .reading-column #home-inputs > :not(h2) { grid-column: 2; }
  .reading-column #home-inputs > ol { margin-top: 0; }
  .reading-column #home-faq summary { padding-block: .85rem; }
  .reading-column .guide-section-intro > p { margin: 0; }
}
.home-question-groups { display: grid; gap: 1.5rem; margin-top: 1.4rem; }
.reading-column .question-group > h3 { margin: 0; padding-bottom: .65rem; border-bottom: 2px solid var(--blue-mid); }
@container home-reading (min-width: 44rem) {
  .home-question-groups { grid-template-columns: repeat(2,minmax(0,1fr)); column-gap: 2rem; align-items: start; }
}
@media screen and (min-width:901px) and (max-width:1060px) {
  .guide-layout { grid-template-columns: minmax(0,1fr); gap: 1.5rem; }
  .guide-nav { position: static; }
  .guide-nav .link-list { display: flex; flex-wrap: wrap; column-gap: 1.1rem; }
}