/* ===== East Bay Heat Pumps — styles ===== */
:root {
  --teal-900: #134e4a;
  --teal-700: #0f766e;
  --teal-600: #0d9488;
  --teal-500: #14b8a6;
  --teal-50:  #f0fdfa;
  --lime-500: #84cc16;
  --slate-900:#0f172a;
  --slate-700:#334155;
  --slate-600:#475569;
  --slate-400:#94a3b8;
  --slate-200:#e2e8f0;
  --slate-100:#f1f5f9;
  --bg:       #ffffff;
  --bg-alt:   #f6fbfa;
  --ink:      #0f172a;
  --muted:    #475569;
  --ring: 0 1px 2px rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.06);
  --ring-lg: 0 24px 60px rgba(15,23,42,.12);
  --radius: 16px;
  --maxw: 1140px;
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1rem; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: 20px; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 1000;
  background: var(--teal-700); color: #fff; padding: 10px 16px; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: .98rem;
  padding: .7rem 1.15rem; border-radius: 999px;
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn svg { flex: none; }
.btn-lg { padding: .95rem 1.5rem; font-size: 1.05rem; }
.btn-primary { background: var(--teal-700); color: #fff; box-shadow: 0 8px 20px rgba(15,118,110,.28); }
.btn-primary:hover { background: var(--teal-900); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(15,118,110,.34); }
.btn-ghost { background: #fff; color: var(--teal-900); border-color: var(--slate-200); }
.btn-ghost:hover { border-color: var(--teal-600); color: var(--teal-700); transform: translateY(-2px); }
.btn-call { background: var(--teal-700); color: #fff; padding: .55rem 1rem; }
.btn-call:hover { background: var(--teal-900); }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--slate-200);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--teal-700); }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--teal-50), #dcfce7); color: var(--teal-700); }
.brand-text { font-weight: 700; font-size: 1.05rem; color: var(--slate-600); letter-spacing: -.01em; }
.brand-text strong { color: var(--teal-700); font-weight: 800; margin-left: .15rem; }

.main-nav { display: flex; align-items: center; }
.nav-menu { display: flex; align-items: center; gap: 1.4rem; list-style: none; margin: 0; padding: 0; }
.nav-menu a { font-weight: 600; color: var(--slate-700); font-size: .96rem; }
.nav-menu a:hover { color: var(--teal-700); }
.nav-cta a:hover { color: #fff; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--slate-700); border-radius: 2px; transition: .25s; }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, var(--teal-50), #fff 70%); }
.hero-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center;
  padding-block: clamp(3rem, 7vw, 6rem); }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; font-weight: 700;
  color: var(--teal-700); margin: 0 0 1rem; }
.eyebrow.center { text-align: center; }
.grad { background: linear-gradient(90deg, var(--teal-600), var(--lime-500)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 34ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.6rem 0 1.4rem; }
.hero-trust { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 1rem 1.4rem; color: var(--slate-700); font-weight: 600; font-size: .95rem; }
.tick { color: var(--teal-600); font-weight: 800; margin-right: .3rem; }

.hero-art { display: grid; place-items: center; }
.art-card { background: #fff; border: 1px solid var(--slate-200); border-radius: 24px; padding: 2rem; box-shadow: var(--ring-lg);
  display: grid; gap: 1.2rem; justify-items: center; text-align: center; max-width: 320px; }
.art-num { font-size: 2.4rem; font-weight: 800; color: var(--teal-700); display: block; }
.art-lbl { color: var(--muted); font-size: .92rem; }
.hero-glow { position: absolute; width: 480px; height: 480px; right: -120px; top: -120px; border-radius: 50%;
  background: radial-gradient(circle, rgba(20,184,166,.22), transparent 70%); pointer-events: none; }

/* ===== Sections ===== */
.section { padding-block: clamp(3.5rem, 7vw, 6rem); }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 640px; margin: 0 auto 3rem; text-align: center; }
.section-sub { color: var(--muted); font-size: 1.1rem; margin: 0; }
.section-sub.left { text-align: left; max-width: 46ch; }
.section-cta { text-align: center; margin-top: 2.5rem; }

.grid { display: grid; gap: 1.4rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card { background: #fff; border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 1.8rem;
  box-shadow: var(--ring); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--ring-lg); border-color: #cbeee7; }

.service-card .card-icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, var(--teal-50), #dcfce7); color: var(--teal-700); margin-bottom: 1rem; }
.service-card p { color: var(--muted); }
.card-list { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: .5rem; }
.card-list li { position: relative; padding-left: 1.5rem; color: var(--slate-700); font-size: .96rem; }
.card-list li::before { content: "✓"; position: absolute; left: 0; color: var(--teal-600); font-weight: 800; }

/* ===== Why ===== */
.why-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; }
.benefit-list { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: 1.1rem; }
.benefit-list li { display: flex; gap: 1rem; align-items: flex-start; }
.benefit-list .b-ico { font-size: 1.5rem; line-height: 1; flex: none; }
.benefit-list strong { display: block; }
.benefit-list p { margin: .1rem 0 0; color: var(--muted); font-size: .96rem; }
.stat-panel { background: linear-gradient(160deg, var(--teal-700), var(--teal-900)); color: #fff; border-radius: 24px;
  padding: 2.2rem; display: grid; gap: 1.6rem; box-shadow: var(--ring-lg); }
.stat-num { font-size: 2.2rem; font-weight: 800; display: block; color: #fff; }
.stat-lbl { color: #c7f0ea; font-size: .95rem; }
.stat + .stat { border-top: 1px solid rgba(255,255,255,.15); padding-top: 1.4rem; }

/* ===== Rebates ===== */
.rebate-card h3 { color: var(--teal-700); }
.rebate-card p { color: var(--muted); margin: 0; }
.fineprint { text-align: center; color: var(--slate-400); font-size: .88rem; margin: 2rem auto 0; max-width: 60ch; }

/* ===== Areas ===== */
.area-list { list-style: none; margin: 0 auto; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: .8rem; max-width: 720px; }
.area-list li { background: #fff; border: 1px solid var(--slate-200); border-radius: 12px; padding: .7rem 1rem;
  text-align: center; font-weight: 600; color: var(--slate-700); font-size: .95rem; }

/* ===== Reviews ===== */
.review-card p { color: var(--slate-700); font-style: italic; }
.review-card footer { color: var(--slate-600); font-weight: 700; font-style: normal; font-size: .92rem; }
.stars { color: #f59e0b; letter-spacing: 2px; margin-bottom: .6rem; }

/* ===== CTA band ===== */
.cta-band { background: linear-gradient(120deg, var(--teal-700), var(--teal-900)); color: #fff; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding-block: 3rem; flex-wrap: wrap; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #c7f0ea; margin: 0; }
.cta-band .btn-primary { background: #fff; color: var(--teal-900); box-shadow: 0 10px 30px rgba(0,0,0,.2); }
.cta-band .btn-primary:hover { background: #ecfeff; }

/* ===== Footer ===== */
.site-footer { background: var(--slate-900); color: #cbd5e1; padding-block: 3.5rem 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 2rem; }
.footer-brand .brand-text { color: #e2e8f0; font-size: 1.1rem; }
.footer-brand .brand-text strong { color: var(--teal-500); }
.footer-brand p { color: var(--slate-400); font-size: .92rem; margin: .8rem 0 0; max-width: 34ch; }
.license { font-size: .85rem; }
.placeholder { color: #fca5a5; }
.footer-col h4 { color: #fff; font-size: .95rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 1rem; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.footer-col a, .footer-col li { color: var(--slate-400); font-size: .95rem; }
.footer-col a:hover { color: var(--teal-500); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid #1e293b;
  margin-top: 2.5rem; padding-top: 1.5rem; font-size: .88rem; color: var(--slate-400); flex-wrap: wrap; gap: .5rem; }
.to-top:hover { color: var(--teal-500); }

/* ===== Sticky mobile call bar ===== */
.mobile-call { display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 200;
  background: var(--teal-700); color: #fff; text-align: center; padding: .9rem; font-weight: 700;
  align-items: center; justify-content: center; gap: .5rem; box-shadow: 0 -6px 20px rgba(0,0,0,.15); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .why-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .area-list { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 680px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--slate-200);
    padding: .5rem 20px 1.2rem; box-shadow: var(--ring);
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu li { padding: .3rem 0; }
  .nav-menu .nav-cta { margin-top: .6rem; }
  .nav-cta a { justify-content: center; }
  .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .area-list { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  body { padding-bottom: 60px; }
  .mobile-call { display: flex; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}

/* ============================================================
   Multi-page components (added for the SEO build-out)
   ============================================================ */

.container.narrow { max-width: 820px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid.tight { gap: 1rem; }

/* ---- Header dropdowns ---- */
.has-sub { position: relative; }
.sub-toggle {
  display: inline-flex; align-items: center; gap: .3rem;
  background: none; border: 0; cursor: pointer; padding: 0;
  font: inherit; font-weight: 600; font-size: .96rem; color: var(--slate-700);
}
.sub-toggle:hover { color: var(--teal-700); }
.sub-toggle .caret { transition: transform .2s ease; stroke: currentColor; fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.subnav {
  position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%) translateY(6px);
  min-width: 240px; background: #fff; border: 1px solid var(--slate-200); border-radius: 14px;
  box-shadow: var(--ring-lg); padding: .5rem; list-style: none; margin: 0;
  display: grid; gap: 2px; opacity: 0; visibility: hidden; transition: opacity .18s ease, transform .18s ease; z-index: 120;
}
.has-sub:hover .subnav, .has-sub.open .subnav {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.has-sub.open .sub-toggle .caret { transform: rotate(180deg); }
.subnav a { display: block; padding: .55rem .8rem; border-radius: 9px; font-size: .95rem; font-weight: 600; color: var(--slate-700); }
.subnav a:hover { background: var(--teal-50); color: var(--teal-700); }
.subnav .sub-all a { color: var(--teal-700); }

/* ---- Breadcrumbs ---- */
.breadcrumbs { background: var(--bg-alt); border-bottom: 1px solid var(--slate-200); }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: .8rem 0; font-size: .88rem; color: var(--slate-600); }
.breadcrumbs li + li::before { content: "/"; margin-right: .4rem; color: var(--slate-400); }
.breadcrumbs a { color: var(--slate-600); font-weight: 600; }
.breadcrumbs a:hover { color: var(--teal-700); }
.breadcrumbs li[aria-current] { color: var(--slate-400); }

/* ---- Compact page hero (interior pages) ---- */
.page-hero { background: linear-gradient(180deg, var(--teal-50), #fff 85%); padding-block: clamp(2.5rem, 5vw, 4rem); }
.page-hero h1 { max-width: 20ch; }
.page-hero .lede { max-width: 60ch; }
.page-hero .hero-actions { margin-top: 1.4rem; }

/* ---- Prose + sidebar layout ---- */
.prose-layout { display: grid; grid-template-columns: 1fr 320px; gap: 3rem; align-items: start; }
.prose { max-width: 68ch; }
.prose h2 { margin-top: 2rem; }
.prose p { color: var(--slate-700); }
.prose .check-list, .prose .step-list { padding-left: 0; }
.check-list { list-style: none; margin: 1rem 0; display: grid; gap: .6rem; }
.check-list li { position: relative; padding-left: 1.7rem; color: var(--slate-700); }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--teal-600); font-weight: 800; }
.step-list { list-style: none; margin: 1rem 0; display: grid; gap: 1rem; counter-reset: step; }
.step-list li { display: flex; gap: 1rem; align-items: flex-start; }
.step-n { flex: none; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--teal-700); color: #fff; font-weight: 800; font-size: .95rem; }
.step-list strong { display: block; }
.step-list p { margin: .15rem 0 0; color: var(--muted); }

/* ---- Sticky side CTA ---- */
.side-cta { position: sticky; top: 96px; display: grid; gap: 1rem; }
.side-card { background: #fff; border: 1px solid var(--slate-200); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--ring); }
.side-card h3 { color: var(--teal-800, var(--teal-900)); }
.side-card p { color: var(--muted); font-size: .95rem; }
.side-card .btn { width: 100%; justify-content: center; }
.side-note { font-size: .82rem; color: var(--slate-400); margin: .8rem 0 0; }
.side-links { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.side-links a { color: var(--teal-700); font-weight: 600; font-size: .92rem; }
.side-links a:hover { text-decoration: underline; }

/* ---- Cards: links ---- */
.card h3 a { color: inherit; }
.card h3 a:hover { color: var(--teal-700); }
.card-link { display: inline-block; margin-top: 1rem; color: var(--teal-700); font-weight: 700; font-size: .95rem; }
.card-link:hover { text-decoration: underline; }
.resource-card .resource-tag { display: inline-block; background: var(--teal-50); color: var(--teal-700);
  font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; padding: .25rem .6rem; border-radius: 999px; margin-bottom: .8rem; }

/* ---- Pills (cross-links) ---- */
.pill-row { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; }
.pill { background: #fff; border: 1px solid var(--slate-200); border-radius: 999px; padding: .5rem 1rem;
  font-weight: 600; font-size: .92rem; color: var(--slate-700); box-shadow: var(--ring); }
.pill:hover { border-color: var(--teal-600); color: var(--teal-700); transform: translateY(-2px); transition: .15s; }

/* ---- FAQ accordion ---- */
.faq-list { display: grid; gap: .8rem; }
.faq-item { background: #fff; border: 1px solid var(--slate-200); border-radius: 12px; overflow: hidden; box-shadow: var(--ring); }
.faq-item summary { list-style: none; cursor: pointer; padding: 1.1rem 1.3rem; font-weight: 700; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.4rem; color: var(--teal-600); font-weight: 400; line-height: 1; flex: none; }
.faq-item[open] summary::after { content: "–"; }
.faq-item summary:hover { color: var(--teal-700); }
.faq-answer { padding: 0 1.3rem 1.2rem; }
.faq-answer p { margin: 0; color: var(--slate-700); }

/* ---- Areas hub ---- */
.area-group { margin-bottom: 2.5rem; }
.area-group h3 { color: var(--teal-700); margin-bottom: 1rem; }
.area-list.wide { grid-template-columns: repeat(4, 1fr); max-width: none; }
.area-list a { display: block; }

/* ---- Article ---- */
.article-dek { font-size: 1.25rem; color: var(--muted); font-weight: 500; }
.article-meta { font-size: .85rem; color: var(--slate-400); border-bottom: 1px solid var(--slate-200); padding-bottom: 1.2rem; }
.article-body h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); }
.article-cta { background: var(--teal-50); border: 1px solid #cbeee7; border-radius: var(--radius); padding: 1.5rem; margin-top: 2rem; }
.article-cta p { margin-top: 0; }

.footer-call { margin-top: 1rem; }

/* ---- Responsive additions ---- */
@media (max-width: 900px) {
  .prose-layout { grid-template-columns: 1fr; }
  .side-cta { position: static; order: 2; }
  .area-list.wide { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 680px) {
  .grid-2 { grid-template-columns: 1fr; }
  .area-list.wide { grid-template-columns: repeat(2, 1fr); }
  /* Mobile nav: dropdowns become inline expandable groups */
  .has-sub { width: 100%; }
  .sub-toggle { width: 100%; justify-content: space-between; padding: .5rem 0; }
  .subnav {
    position: static; transform: none; opacity: 1; visibility: visible;
    box-shadow: none; border: 0; border-left: 2px solid var(--slate-200); border-radius: 0;
    margin: 0 0 .5rem .3rem; padding: 0 0 0 .6rem; min-width: 0;
    display: none;
  }
  .has-sub.open .subnav { display: grid; }
  .subnav a { padding: .45rem .3rem; }
}