/*
 * Well Pump wing — layered on top of /assets/site.css (load that first).
 * Adds: source-link list, affiliate part-pick boxes, related-page footer nav,
 * spec/comparison tables, and the pressure-switch quick-picker tool on the hub page.
 * Zero dependencies, zero external requests.
 */

/* ---- hub-page hero visual: 30/50 vs 40/60 setting cards ---- */
.setting-compare-cards { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.setting-card { background: var(--color-card-bg); border: 1px solid var(--color-border); border-radius: 10px; padding: 18px 14px; text-align: center; }
.setting-card-label { color: var(--color-text-soft); font-size: .64rem; font-weight: 800; letter-spacing: .1em; margin: 0 0 8px; text-transform: uppercase; }
.setting-card-value { color: var(--color-green-dark); font-family: var(--font-serif-lining); font-size: clamp(1.8rem, 3.4vw, 2.3rem); line-height: 1; margin: 0 0 14px; }
.setting-card-value span { color: var(--color-text-soft); font-size: 65%; margin: 0 2px; }
.setting-scale { background: var(--color-border); border-radius: 4px; height: 7px; overflow: hidden; position: relative; }
.setting-scale-fill { background: var(--color-green-mid); border-radius: 4px; bottom: 0; position: absolute; top: 0; }
.setting-scale-fill--3050 { left: 30%; width: 20%; }
.setting-scale-fill--4060 { left: 40%; width: 20%; }
.setting-card-note { color: var(--color-text-soft); font-size: .72rem; margin: 10px 0 0; }

/* ---- long-form article body (used by all 7 content pages) ---- */
.prose-page h3 { color: var(--color-green-dark); font-family: var(--font-serif); font-size: 1.25rem; margin: 26px 0 8px; }
.prose-page strong { color: var(--color-green-dark); }
.prose-page .updated { color: var(--color-text-soft); font-size: .82rem; margin-bottom: 8px; }

.notice.notice-strong { background: var(--color-stop-bg); border-left-color: var(--color-stop-border); }
.notice.notice-strong strong { color: #7a2d2b; }

/* ---- spec / comparison tables ---- */
/* When a spec-table is wrapped in .table-scroll (currently: the 5-column
   settings table on the hub page) for narrow-screen horizontal scrolling,
   the wrapper carries the spacing and the table gets a min-width so it
   actually overflows and scrolls instead of squashing. Base .table-scroll
   (overflow-x + focus ring) is shared, see /assets/site.css. */
.table-scroll { margin: 18px 0 28px; }
.table-scroll .spec-table { margin: 0; min-width: 640px; }
.spec-table { border-collapse: collapse; margin: 18px 0 28px; width: 100%; }
.spec-table caption { caption-side: top; color: var(--color-text-soft); font-size: .82rem; text-align: left; margin-bottom: 8px; }
.spec-table th, .spec-table td { border-top: 1px solid var(--color-border-soft); font-size: .95rem; line-height: 1.5; padding: 10px 12px; text-align: left; vertical-align: top; }
.spec-table thead th { border-top: 0; color: var(--color-text-soft); font-size: .74rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.spec-table tbody tr:first-child td { border-top: 2px solid var(--color-border-soft); }

/* ---- affiliate part-pick boxes ---- */
.parts-pick { background: var(--color-card-bg); border: 1px solid var(--color-border); border-radius: 12px; margin: 30px 0; padding: 24px; }
.parts-pick h3 { font-family: var(--font-serif); font-size: 1.3rem; margin: 0 0 6px; }
.parts-pick p.parts-pick-note { color: var(--color-text-soft); font-size: .88rem; margin-bottom: 16px; }
.parts-pick-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.parts-pick-item { border: 1px solid var(--color-border); border-left: 4px solid var(--color-accent); border-radius: 9px; padding: 32px 16px 16px; position: relative; }
.parts-pick-item::before { background: var(--color-accent-soft); border-radius: 4px; color: var(--color-accent); content: "Affiliate"; font-size: .62rem; font-weight: 800; left: 14px; letter-spacing: .06em; padding: 3px 8px; position: absolute; text-transform: uppercase; top: 12px; }
.parts-pick-item p { color: var(--color-text-muted); font-size: .88rem; line-height: 1.5; margin: 4px 0 12px; }

/* Affiliate placeholder — no real link exists until the Amazon Associates
   tag is wired up (see docs/design.md "联盟合规"). Kept visually identical
   to the eventual button so the card layout doesn't shift, but it is a
   <span>, not an <a>: no href, not focusable, not clickable, and it says so
   ("Link coming soon"). This intentionally replaces the previous
   `<a data-aff href="#">` placeholder, which rendered as a clickable-looking
   dead link.
   Injection convention, when the Amazon tag is ready: swap the <span
   class="aff-placeholder" data-aff="..." data-product="..." aria-disabled>
   for `<a data-aff="..." data-product="..." href="{real amazon URL with
   tag}" rel="sponsored noopener">`, keep the visible label, and make sure
   the affiliate-disclosure link stays near the card (it already does, via
   the parts-pick-item::before "Affiliate" badge and the site-wide
   affiliate-disclosure page link in every footer). Used both inside
   .parts-pick-item cards and inside the quick-picker's result (see
   src/picker.js resultHtml). */
.aff-placeholder { background: var(--color-green-dark); border-radius: 6px; color: #fff; cursor: not-allowed; display: inline-block; font-size: .82rem; font-weight: 800; min-height: 20px; opacity: .7; padding: 11px 14px; }

/* ---- sources section ---- */
.sources { border-top: 1px solid var(--color-border-soft); margin-top: 40px; padding-top: 32px; }
.source-links { display: grid; gap: 10px; margin-top: 16px; }
.source-links a { align-items: center; background: var(--color-card-bg); border: 1px solid var(--color-border); border-radius: 9px; color: var(--color-text); display: flex; flex-wrap: wrap; font-weight: 700; gap: 4px 10px; padding: 13px 16px; text-decoration: none; }
.source-links a::before { background: var(--color-green-dark); border-radius: 999px; color: #fff; content: "Source"; flex-shrink: 0; font-size: .64rem; font-weight: 800; letter-spacing: .07em; padding: 3px 9px; text-transform: uppercase; }
.source-links a:hover { border-color: var(--color-accent); }
.source-links a:hover span[aria-hidden] { color: var(--color-accent); }
.source-links a span[aria-hidden] { color: var(--color-green-mid); font-weight: 800; }
.source-links .source-note { color: var(--color-text-soft); flex-basis: 100%; font-size: .8rem; font-weight: 400; margin-top: 2px; }

/* ---- related-page interlink footer nav ---- */
.related-pages { border-top: 1px solid var(--color-border-soft); margin-top: 40px; padding-top: 32px; }
.related-pages h2 { font-size: 1.5rem; }
.related-grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 16px; }
.related-grid a { background: var(--color-card-bg); border: 1px solid var(--color-border); border-radius: 9px; color: var(--color-green-dark); display: block; font-weight: 700; padding: 14px 16px; text-decoration: none; }
.related-grid a:hover { border-color: var(--color-accent); color: var(--color-accent); }
.related-grid a span { color: var(--color-text-soft); display: block; font-size: .8rem; font-weight: 400; margin-top: 3px; }

/* ---- quick-picker tool (hub page) ---- */
.picker { background: var(--color-card-bg); border: 1px solid var(--color-border); border-radius: 12px; margin: 40px 0; padding: 28px; }
.picker h2 { font-size: 1.7rem; }
.picker-help { color: var(--color-text-muted); line-height: 1.55; margin-bottom: 22px; max-width: 640px; }
.picker-fields { display: grid; gap: 18px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.picker-field label { color: var(--color-text); display: block; font-size: .86rem; font-weight: 750; margin-bottom: 6px; }
.picker-field select { background: #fff; border: 1px solid var(--color-input-border); border-radius: 7px; color: var(--color-text); display: block; font: inherit; padding: 11px 12px; width: 100%; }
.picker-field select:focus { border-color: var(--color-accent); box-shadow: 0 0 0 3px var(--color-accent-soft); }
.picker-actions { margin-top: 22px; }
.picker-result { border: 1px solid; border-radius: 10px; margin-top: 24px; padding: 20px; }
.picker-result.rec-30-50, .picker-result.rec-40-60 { background: var(--color-match-bg); border-color: var(--color-match-border); }
.picker-result.rec-caution { background: var(--color-caution-bg); border-color: var(--color-caution-border); }
.picker-result h3 { font-family: var(--font-serif); font-size: 1.4rem; margin: 0 0 8px; }
.picker-result p { line-height: 1.55; margin: 0 0 8px; }
.picker-result ul { margin: 8px 0 0; padding-left: 20px; }
.picker-result li { line-height: 1.55; margin: 4px 0; }

@media (max-width: 700px) {
  .picker-fields { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .setting-compare-cards { grid-template-columns: 1fr; }
}