/*
Theme Name: HWHR
Description: House theme for hot-water-heaters-reviews.com — A4 spec: minimal, no builders, near-zero JS, AA contrast, LCP-disciplined.
Version: 0.1.0
Author: Editorial
*/

:root {
  --ink: #1a1c1e;          /* body text on white: 16.2:1 */
  --ink-soft: #444a50;     /* 8.9:1 */
  --paper: #ffffff;
  --paper-alt: #f4f6f8;
  --brand: #0b5394;        /* links on white: 7.0:1 */
  --brand-dark: #083b6b;
  --warn-bg: #fff4e5;
  --warn-border: #b45309;
  --rule: #d7dbdf;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
img { max-width: 100%; height: auto; }

a { color: var(--brand); }
a:hover { color: var(--brand-dark); }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--brand); outline-offset: 2px;
}
.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--paper);
  padding: .5rem 1rem; z-index: 10;
}
.skip-link:focus { left: 0; }

.site-header { background: var(--brand-dark); }
.site-header .liner {
  max-width: 900px; margin: 0 auto; padding: .8rem 1rem;
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .3rem 1rem;
}
.site-title { color: #fff; font-size: 1.25rem; font-weight: 700; text-decoration: none; }
.site-tagline { color: #cfe0f0; font-size: .85rem; }

.site-nav { background: var(--paper-alt); border-bottom: 1px solid var(--rule); }
.site-nav ul {
  max-width: 900px; margin: 0 auto; padding: .35rem 1rem; list-style: none;
  display: flex; flex-wrap: wrap; gap: .2rem 1.2rem;
}
.site-nav a { text-decoration: none; font-size: .95rem; }

.breadcrumbs { max-width: 760px; margin: 1rem auto 0; padding: 0 1rem; font-size: .85rem; color: var(--ink-soft); }
.breadcrumbs a { color: var(--ink-soft); }

main { max-width: 760px; margin: 0 auto; padding: 0 1rem 3rem; }
h1 { font-size: 1.75rem; line-height: 1.25; margin: 1rem 0; }
h2 { font-size: 1.35rem; margin-top: 2rem; }
h3 { font-size: 1.1rem; }

.byline { color: var(--ink-soft); font-size: .85rem; margin-bottom: 1.2rem; }

.safety-callout {
  background: var(--warn-bg); border-left: 4px solid var(--warn-border);
  padding: .8rem 1rem; margin: 1.2rem 0; font-size: .95rem;
}
.citations { border-top: 1px solid var(--rule); margin-top: 2.5rem; padding-top: 1rem; font-size: .85rem; color: var(--ink-soft); }

/* legacy content safety nets */
main table { max-width: 100%; overflow-x: auto; display: block; border-collapse: collapse; }
main iframe { max-width: 100%; }

.site-footer { background: var(--paper-alt); border-top: 1px solid var(--rule); margin-top: 2rem; }
.site-footer .liner {
  max-width: 900px; margin: 0 auto; padding: 1.2rem 1rem; font-size: .85rem; color: var(--ink-soft);
  display: flex; flex-wrap: wrap; gap: .3rem 1.4rem;
}
.site-footer a { color: var(--ink-soft); }