/* ============================================================
   ontariosepticinstallers.com — "Groundwater & Rural Utility"
   Bespoke identity: deep forest green, warm loam neutrals,
   high-vis amber CTAs. 8px grid. WCAG AA. No framework CSS.
   ============================================================ */

:root {
  --bg: #f3efe4;            /* warm loam paper */
  --surface: #fbf9f2;       /* card surface */
  --surface-deep: #ece7d6;  /* inset panels */
  --text: #1c2f23;          /* forest ink */
  --muted: #4c6153;
  --primary: #1e4d2f;       /* deep forest green */
  --primary-deep: #143520;
  --primary-ink: #f3efe4;   /* text on primary */
  --accent: #f2a71b;        /* high-vis amber */
  --accent-ink: #241a02;    /* text on amber (AA) */
  --border: #d9d2ba;
  --border-strong: #b9b092;
  --kicker: #7a5d18;        /* loam-bronze kickers */
  --danger: #8c2f1b;
  --ok: #2e6b3a;

  --radius: 10px;
  --radius-lg: 16px;
  --sp-1: 8px; --sp-2: 16px; --sp-3: 24px; --sp-4: 32px; --sp-5: 48px; --sp-6: 64px;
  --max: 1080px;
  --font-display: "Bricolage Grotesque", "Arial Black", sans-serif;
  --font-body: "Public Sans", "Segoe UI", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", Consolas, monospace;
  --shadow-1: 0 1px 2px rgba(28, 47, 35, .07), 0 4px 14px rgba(28, 47, 35, .06);
  --shadow-2: 0 2px 6px rgba(28, 47, 35, .10), 0 10px 28px rgba(28, 47, 35, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  /* subtle contour-line groundwater motif */
  background-image: repeating-radial-gradient(circle at 8% -12%, transparent 0 46px, rgba(30, 77, 47, .035) 46px 48px);
}

a { color: var(--primary); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
a:hover { color: var(--primary-deep); }

/* ---------- accessibility ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--primary); color: var(--primary-ink);
  padding: var(--sp-1) var(--sp-2); border-radius: 0 0 var(--radius) 0;
  font-weight: 700; text-decoration: none;
}
.skip-link:focus { left: 0; color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- header ---------- */
.site-header {
  background: var(--primary-deep);
  color: var(--primary-ink);
  border-bottom: 6px solid var(--accent);
}
.site-header .wrap { max-width: var(--max); margin: 0 auto; padding: var(--sp-2); display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--primary-ink); text-decoration: none; }
.brand:hover { color: #fff; }
.brand svg { flex: 0 0 auto; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: .2px; line-height: 1.15; }
.brand-sub { display: block; font-family: var(--font-mono); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: 1.4px; color: #cfe0d2; }
.site-nav { margin-left: auto; display: flex; flex-wrap: wrap; gap: var(--sp-1); }
.site-nav a {
  color: var(--primary-ink); text-decoration: none; font-weight: 600; font-size: 15px;
  padding: 6px 12px; border-radius: 999px; border: 1px solid rgba(243, 239, 228, .25);
  transition: background-color .15s ease, transform .12s ease;
}
.site-nav a:hover { background: rgba(243, 239, 228, .12); color: #fff; }
.site-nav a:active { transform: scale(0.97); }
.site-nav a[aria-current="page"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* ---------- layout ---------- */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--sp-2); }
main { padding: var(--sp-4) 0 var(--sp-5); }
.section { margin: var(--sp-5) 0; }
.section > h2 { margin-top: 0; }

/* ---------- typography ---------- */
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; margin: 0 0 var(--sp-2); text-wrap: balance; }
h1 { font-size: clamp(30px, 5vw, 44px); font-weight: 800; letter-spacing: -.5px; }
h2 { font-size: clamp(23px, 3.2vw, 30px); font-weight: 700; margin-top: var(--sp-4); }
h3 { font-size: 20px; font-weight: 700; }
p { margin: 0 0 var(--sp-2); }
.kicker {
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 2.2px; color: var(--kicker);
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: var(--sp-1);
}
.kicker::before { content: ""; width: 22px; height: 3px; background: var(--accent); border-radius: 2px; }
.lead { font-size: 19px; color: var(--muted); max-width: 62ch; }
.reviewer { font-family: var(--font-mono); font-size: 12.5px; color: var(--muted); }

/* ---------- hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--primary-deep) 0%, var(--primary) 68%, #2a6340 100%);
  color: var(--primary-ink);
  border-radius: var(--radius-lg);
  padding: var(--sp-4);
  margin-bottom: var(--sp-4);
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-2);
}
.hero::after {
  content: ""; position: absolute; inset: auto -10% -55% -10%; height: 70%;
  background: repeating-radial-gradient(circle at 30% 120%, transparent 0 34px, rgba(243, 239, 228, .08) 34px 36px);
  pointer-events: none;
}
.hero h1 { color: #fff; max-width: 22ch; }
.hero .lead { color: #d9e6db; }
.hero-stats { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-3); position: relative; z-index: 1; }
.stat {
  background: rgba(20, 53, 32, .55); border: 1px solid rgba(243, 239, 228, .22);
  border-radius: var(--radius); padding: 10px 16px; min-width: 150px;
}
.stat b { display: block; font-family: var(--font-display); font-size: 22px; color: var(--accent); }
.stat span { font-size: 13px; color: #d9e6db; }

/* ---------- cards & grids ---------- */
.grid { display: grid; gap: var(--sp-2); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: var(--sp-3);
  box-shadow: var(--shadow-1);
}
.card h3 { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }
.card-link { text-decoration: none; color: inherit; display: block; transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease; }
.card-link:hover { border-color: var(--primary); box-shadow: var(--shadow-2); }
.card-link:active { transform: scale(0.97); }
.card-link h3 { color: var(--primary); }
.mono-note { font-family: var(--font-mono); font-size: 12.5px; color: var(--muted); }

/* region chips */
.region-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--sp-1); }
.region-chip {
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px;
  padding: 8px 16px; text-decoration: none; font-weight: 600; font-size: 15px;
  transition: transform .12s ease, border-color .12s ease, background-color .12s ease;
}
.region-chip:hover { border-color: var(--primary); background: #fff; }
.region-chip:active { transform: scale(0.97); }

/* ---------- buttons & CTAs ---------- */
.btn {
  display: inline-block; background: var(--accent); color: var(--accent-ink);
  font-family: var(--font-body); font-weight: 700; font-size: 16px;
  padding: 12px 22px; border-radius: 999px; border: 2px solid var(--accent);
  text-decoration: none; cursor: pointer;
  transition: transform .12s ease, background-color .12s ease, box-shadow .12s ease;
  box-shadow: 0 2px 10px rgba(242, 167, 27, .35);
}
.btn:hover { background: #ffb838; }
.btn:active { transform: scale(0.97); }
.btn-ghost {
  background: transparent; color: var(--primary); border-color: var(--primary);
  box-shadow: none;
}
.btn-ghost:hover { background: rgba(30, 77, 47, .08); }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.cta-card {
  background: var(--primary); color: var(--primary-ink);
  border-radius: var(--radius-lg); padding: var(--sp-3);
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2);
  border: 1px solid var(--primary-deep);
}
.cta-card h2, .cta-card h3 { color: #fff; margin: 0; flex: 1 1 260px; }
.cta-card p { color: #d9e6db; margin: 4px 0 0; font-size: 15px; }

/* ---------- tables ---------- */
.table-scroll { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { border-collapse: collapse; width: 100%; background: var(--surface); font-size: 15.5px; }
caption { text-align: left; font-family: var(--font-mono); font-size: 12.5px; color: var(--muted); padding: 10px 14px; background: var(--surface-deep); }
th, td { padding: 10px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
thead th { background: var(--primary); color: var(--primary-ink); font-family: var(--font-display); font-weight: 600; font-size: 14.5px; }
tbody tr:nth-child(even) { background: #f6f3e9; }
tbody tr:last-child td { border-bottom: none; }

/* ---------- lists ---------- */
ul, ol { padding-left: 22px; }
li { margin-bottom: 6px; }

/* ---------- FAQ ---------- */
details {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0; margin-bottom: var(--sp-1);
}
details summary {
  cursor: pointer; font-weight: 700; padding: 14px 16px; list-style: none;
  font-family: var(--font-display); font-size: 16.5px;
  transition: background-color .12s ease;
}
details summary::-webkit-details-marker { display: none; }
details summary::before { content: "+"; font-family: var(--font-mono); color: var(--kicker); margin-right: 10px; }
details[open] summary::before { content: "–"; }
details summary:hover { background: var(--surface-deep); border-radius: var(--radius); }
details .faq-a { padding: 0 16px 14px 42px; color: var(--muted); }

/* ---------- search (home) ---------- */
.searchbar { display: flex; gap: var(--sp-1); flex-wrap: wrap; margin-bottom: var(--sp-2); }
.searchbar input[type="search"] {
  flex: 1 1 280px; padding: 12px 16px; font-size: 16px; font-family: var(--font-body);
  border: 2px solid var(--border-strong); border-radius: 999px; background: #fff; color: var(--text);
}
.searchbar input[type="search"]:focus { border-color: var(--primary); outline: 3px solid var(--accent); outline-offset: 1px; }
.search-meta { font-family: var(--font-mono); font-size: 12.5px; color: var(--muted); margin-bottom: var(--sp-1); }

/* ---------- tools ---------- */
.tool-panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--sp-3); box-shadow: var(--shadow-1); }
.field { margin-bottom: var(--sp-2); }
.field label { display: block; font-weight: 700; margin-bottom: 4px; font-size: 15px; }
.field .hint { font-size: 13px; color: var(--muted); margin: 2px 0 6px; }
.field select, .field input[type="number"], .field input[type="text"] {
  width: 100%; max-width: 420px; padding: 10px 12px; font-size: 16px; font-family: var(--font-body);
  border: 2px solid var(--border-strong); border-radius: var(--radius); background: #fff; color: var(--text);
}
.field select:focus, .field input:focus { border-color: var(--primary); outline: 3px solid var(--accent); outline-offset: 1px; }
.result-box {
  background: var(--primary); color: var(--primary-ink); border-radius: var(--radius-lg);
  padding: var(--sp-3); margin-top: var(--sp-3);
}
.result-box .range { font-family: var(--font-display); font-size: clamp(26px, 4vw, 38px); font-weight: 800; color: var(--accent); }
.result-box p { color: #d9e6db; margin: 6px 0 0; }
.disclaimer { font-family: var(--font-mono); font-size: 12px; color: var(--muted); margin-top: var(--sp-2); }
.check-item {
  display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
  margin-bottom: var(--sp-1);
}
.check-item input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--primary); margin-top: 3px; flex: 0 0 auto; }
.check-item .why { display: block; font-size: 13.5px; color: var(--muted); }
.score-badge {
  display: inline-block; font-family: var(--font-display); font-weight: 800; font-size: 28px;
  padding: 8px 20px; border-radius: 999px; background: var(--surface-deep); border: 2px solid var(--border-strong);
}
.score-A { background: var(--ok); color: #fff; border-color: var(--ok); }
.score-B { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.score-C { background: #caa14a; color: #241a02; border-color: #caa14a; }
.score-D { background: var(--danger); color: #fff; border-color: var(--danger); }

/* ---------- breadcrumb ---------- */
.crumbs { font-family: var(--font-mono); font-size: 12.5px; color: var(--muted); margin-bottom: var(--sp-2); }
.crumbs a { color: var(--muted); }
.crumbs span[aria-current] { color: var(--text); font-weight: 600; }

/* ---------- related links ---------- */
.related {
  background: var(--surface-deep); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: var(--sp-3); margin-top: var(--sp-5);
}
.related h2 { margin-top: 0; font-size: 20px; }
.related ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 8px 16px; }
.related a { font-weight: 600; font-size: 15px; }

/* ---------- footer ---------- */
.site-footer {
  background: var(--primary-deep); color: #c9d8cd; margin-top: var(--sp-6);
  border-top: 6px solid var(--accent); padding: var(--sp-4) 0 var(--sp-3); font-size: 14px;
}
.site-footer .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--sp-3); }
.site-footer h3 { color: var(--primary-ink); font-size: 15px; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 1.4px; }
.site-footer a { color: #c9d8cd; }
.site-footer a:hover { color: var(--accent); }
.site-footer .legal { margin-top: var(--sp-3); padding-top: var(--sp-2); border-top: 1px solid rgba(243, 239, 228, .18); color: #9fb3a5; font-size: 13px; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .hero { padding: var(--sp-3); }
  .site-header .wrap { padding: var(--sp-2) var(--sp-2); }
  .brand-name { font-size: 17px; }
  .cta-card { flex-direction: column; align-items: stretch; text-align: left; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

@media print {
  .site-header, .site-footer, .related, .btn { display: none !important; }
  body { background: #fff; }
  .result-box { background: #fff; color: #000; border: 2px solid #000; }
  .result-box .range { color: #000; }
}