/* ============ Complete guide hub ============ */
.hub-page { max-width: 1140px; margin: 0 auto; padding: 24px 18px 80px; }

.hub-header { padding: 26px 0 30px; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.hub-brand { font-size: 0.95rem; font-weight: 800; letter-spacing: -0.01em; margin-bottom: 18px; }
.hub-brand .home-link::after { content: "."; color: var(--accent); }
.hub-header h1 { font-size: 2.1rem; line-height: 1.12; letter-spacing: -0.03em; font-weight: 800; }
.hub-sub { color: var(--text); font-size: 1.02rem; line-height: 1.6; margin-top: 16px; max-width: 60ch; }
.hub-meta { color: var(--muted); font-size: 0.82rem; margin-top: 14px; }

.hub-layout { display: block; }

/* --- table of contents --- */
.toc { margin-bottom: 26px; }
.toc-toggle {
  width: 100%; background: var(--card); color: var(--text);
  border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px;
  font-family: inherit; font-size: 0.98rem; font-weight: 700; text-align: left; cursor: pointer;
}
.toc-toggle::after { content: "▾"; float: right; color: var(--muted); }
.toc-list { display: none; margin-top: 8px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 8px; }
.toc-list.open { display: block; }
.toc-list a {
  display: block; padding: 10px 12px; color: var(--muted);
  text-decoration: none; font-size: 0.93rem; border-radius: 8px; line-height: 1.35;
}
.toc-list a:hover { color: var(--text); background: var(--card-2); }
.toc-list a.active { color: var(--accent); font-weight: 700; }

/* --- sections --- */
.hub-section { padding: 30px 0; border-top: 1px solid var(--line); scroll-margin-top: 20px; }
.hub-section:first-child { border-top: none; padding-top: 6px; }
.hub-section h2 {
  font-size: 1.55rem; letter-spacing: -0.02em; line-height: 1.2; font-weight: 800;
  margin-bottom: 16px; display: flex; align-items: baseline; gap: 12px;
}
.sec-num {
  flex-shrink: 0; color: var(--accent); font-size: 0.95rem; font-weight: 800;
  font-variant-numeric: tabular-nums; min-width: 1.2em;
}
.hub-section h3 { font-size: 1.08rem; font-weight: 800; margin: 24px 0 8px; letter-spacing: -0.01em; }
.hub-section p { font-size: 1rem; line-height: 1.68; margin-bottom: 14px; max-width: 68ch; }
.hub-section p.lead { color: var(--muted); }
.hub-section ul, .hub-section ol { padding-left: 22px; margin-bottom: 16px; max-width: 68ch; }
.hub-section li { font-size: 1rem; line-height: 1.65; margin-bottom: 9px; }
.hub-section a { color: var(--accent); }
.tight li { margin-bottom: 7px; }
.step-list li { margin-bottom: 12px; }
.cash-list { columns: 2; column-gap: 26px; }
.cash-list li { break-inside: avoid; font-size: 0.96rem; }
.more { font-size: 0.95rem; font-weight: 700; margin-top: 18px; }

/* --- callouts --- */
.quick-answer, .warn {
  border-radius: 12px; padding: 18px 20px; margin: 18px 0; max-width: 68ch;
  font-size: 1rem; line-height: 1.65;
}
.quick-answer { background: var(--card); border: 1px solid var(--line); }
.quick-answer.big { font-size: 1.1rem; }
.quick-answer ol { margin-bottom: 0; }
.warn { background: var(--accent-soft); border-left: 3px solid var(--accent); }

/* --- stats --- */
.stat-row { display: flex; gap: 14px; margin: 18px 0 22px; flex-wrap: wrap; }
.stat {
  flex: 1 1 200px; background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 18px;
}
.stat-num { display: block; font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; }
.stat-label { display: block; color: var(--muted); font-size: 0.85rem; line-height: 1.45; margin-top: 6px; }

/* --- tables --- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 16px 0; }
.grid-table {
  width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 0.94rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
}
.table-scroll .grid-table { margin: 0; min-width: 520px; }
.grid-table th, .grid-table td {
  text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; line-height: 1.5;
}
.grid-table tr:last-child td { border-bottom: none; }
.grid-table th {
  color: var(--muted); font-size: 0.74rem; text-transform: uppercase;
  letter-spacing: 0.07em; font-weight: 800; background: var(--card-2);
}
.works td.ok { color: var(--pos); font-weight: 700; }
.works td.no { color: var(--neg); font-weight: 700; }
.works td.mid { color: var(--muted); font-weight: 700; }

/* --- calculators --- */
.calc-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 20px; margin: 22px 0; max-width: 68ch;
}
.calc-card h3 { margin: 0 0 14px; font-size: 1rem; }
.calc-card .calc-row { display: flex; align-items: center; gap: 12px; margin: 10px 0; }
.calc-card .calc-row span { flex: 1; font-size: 0.93rem; line-height: 1.4; }
.calc-card .calc-row input {
  width: 110px; flex-shrink: 0; font-size: 1.15rem; font-weight: 700; text-align: right;
}
.calc-card .calc-out {
  margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line);
  font-size: 1.02rem; line-height: 1.5;
}
.calc-card .calc-out strong { font-size: 1.3rem; }

/* --- CTA + guide grid --- */
.cta-card {
  background: var(--card); border: 1px solid var(--accent);
  border-radius: 14px; padding: 22px; margin: 24px 0; max-width: 68ch;
}
.cta-card h3 { margin-top: 0; }
.cta-card .primary-btn { display: block; text-align: center; text-decoration: none; }

.guide-grid { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 16px; }
.guide-grid a {
  display: block; background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 15px 17px; text-decoration: none; color: var(--text);
}
.guide-grid a:hover { border-color: var(--accent); }
.guide-grid strong { display: block; font-size: 0.98rem; line-height: 1.35; }
.guide-grid span { display: block; color: var(--muted); font-size: 0.85rem; margin-top: 4px; line-height: 1.4; }

.sources li { font-size: 0.85rem; line-height: 1.6; color: var(--muted); }
.sources a { color: var(--accent); }

/* --- back to top --- */
.to-top {
  position: fixed; right: 16px; bottom: 16px; z-index: 40;
  background: var(--text); color: var(--bg); border: none; border-radius: 999px;
  padding: 11px 18px; font-family: inherit; font-size: 0.85rem; font-weight: 800;
  cursor: pointer; opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.to-top.show { opacity: 0.92; pointer-events: auto; }

/* --- mobile: prose-heavy tables become stacked cards --- */
@media (max-width: 899px) {
  .grid-table.stack-mobile { display: block; background: none; border: none; border-radius: 0; }
  .grid-table.stack-mobile tbody { display: block; }
  .grid-table.stack-mobile tr {
    display: block; background: var(--card); border: 1px solid var(--line);
    border-radius: 12px; padding: 6px 2px; margin-bottom: 10px;
  }
  .grid-table.stack-mobile tr:first-child { display: none; }
  .grid-table.stack-mobile td { display: block; border: none; padding: 9px 14px; }
  .grid-table.stack-mobile td::before {
    content: attr(data-label); display: block; color: var(--muted);
    font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em;
    font-weight: 800; margin-bottom: 3px;
  }
  .grid-table.stack-mobile td[data-label="—"]::before { display: none; }
  .grid-table.stack-mobile td[data-label="—"] { font-size: 1.02rem; padding-bottom: 4px; }

  /* the wide comparison table: fit all four columns instead of scrolling */
  .grid-table.compact { font-size: 0.82rem; }
  .table-scroll .grid-table.compact { min-width: 0; }
  .grid-table.compact th, .grid-table.compact td { padding: 9px 7px; }
  .to-top { padding: 9px 15px; font-size: 0.8rem; }
  .hub-page { padding-bottom: 96px; }
}

/* --- desktop --- */
@media (min-width: 900px) {
  .hub-header h1 { font-size: 3rem; }
  .hub-sub { font-size: 1.12rem; }
  .hub-layout { display: grid; grid-template-columns: 250px 1fr; gap: 48px; align-items: start; }
  .toc { position: sticky; top: 24px; margin-bottom: 0; }
  .toc-toggle { display: none; }
  .toc-list { display: block; background: none; border: none; padding: 0; margin-top: 0; }
  .toc-list a { padding: 7px 10px; border-left: 2px solid var(--line); border-radius: 0; }
  .toc-list a.active { border-left-color: var(--accent); background: none; }
  .hub-section { padding: 40px 0; scroll-margin-top: 24px; }
  .hub-section h2 { font-size: 1.8rem; }
  .guide-grid { grid-template-columns: 1fr 1fr; }
}

/* guides layer on top of app style.css */
.guide-page { max-width: 640px; }
.home-link { color: inherit; text-decoration: none; }
.guide-kicker { color: var(--accent); font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 6px; }
.guide-card { display: block; text-decoration: none; color: inherit; }
.guide-card h2 { font-size: 1.25rem; letter-spacing: -0.01em; line-height: 1.3; margin-bottom: 8px; }
.guide-desc { color: var(--muted); font-size: 0.95rem; }
.center-btn { text-align: center; text-decoration: none; }

article h1 { font-size: 1.7rem; letter-spacing: -0.02em; line-height: 1.25; margin: 10px 0 8px; }
article h2 { font-size: 1.2rem; margin: 28px 0 10px; letter-spacing: -0.01em; }
article p, article li { font-size: 1rem; line-height: 1.65; margin-bottom: 12px; }
article ul, article ol { padding-left: 22px; margin-bottom: 14px; }
article .byline { color: var(--muted); font-size: 0.85rem; margin-bottom: 20px; }
article a { color: var(--accent); }
article table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 0.92rem; }
article th, article td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
article th { color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; }
.callout { background: var(--card-2); border-left: 3px solid var(--accent); border-radius: 8px; padding: 12px 14px; margin: 14px 0; font-size: 0.95rem; }
.calc-row { display: flex; align-items: center; gap: 10px; margin: 10px 0; }
.calc-row input { flex: 1; font-size: 1.2rem; font-weight: 700; text-align: right; }
.calc-out { font-size: 1.05rem; margin-top: 12px; }
.calc-out strong { font-size: 1.4rem; }
.small { color: var(--muted); font-size: 0.82rem; }

.guide-backlink { color: var(--muted); font-size: 0.9rem; margin-top: 14px; text-align: center; line-height: 1.5; }
.guide-backlink a { color: var(--accent); font-weight: 700; }

.related .section-title { margin-bottom: 10px; }
.related-list { list-style: none; padding: 0; margin: 0; }
.related-list li { border-bottom: 1px solid var(--line); }
.related-list li:last-child { border-bottom: none; }
.related-list a { display: block; padding: 11px 2px; color: var(--text); text-decoration: none; font-size: 0.97rem; font-weight: 700; }
.related-list a::after { content: " \203A"; color: var(--accent); }
.related-list a:hover { color: var(--accent); }