/* HVACFinder.io — shared stylesheet */

:root {
  --color-primary: #0b5fa5;
  --color-primary-dark: #084a80;
  --color-accent: #ff7a1a;
  --color-accent-dark: #e0670e;
  --color-ink: #10202e;
  --color-ink-soft: #3d5266;
  --color-bg: #f6f9fc;
  --color-surface: #ffffff;
  --color-border: #dbe4ec;
  --color-success: #1c8a52;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-card: 0 2px 10px rgba(16, 32, 46, 0.08);
  --shadow-card-hover: 0 8px 24px rgba(16, 32, 46, 0.14);
  --max-width: 1180px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.55;
}

img { max-width: 100%; display: block; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header ---------- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-ink);
}
.brand:hover { text-decoration: none; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-weight: 900;
  font-size: 1rem;
}
.brand .dot { color: var(--color-accent); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}
.main-nav a {
  color: var(--color-ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
}
.main-nav a:hover { color: var(--color-primary); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}

.btn {
  display: inline-block;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-block { display: block; width: 100%; }
.btn-sm { padding: 7px 14px; font-size: 0.85rem; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 60%);
  color: #fff;
  padding: 56px 0 64px;
}
.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  margin: 0 0 14px;
  max-width: 780px;
}
.hero p.lede {
  font-size: 1.15rem;
  color: #d9ecff;
  max-width: 680px;
  margin: 0 0 26px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.badge {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.28);
  color: #fff;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}

.page-hero {
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 40px 0 46px;
}
.page-hero h1 { margin: 0 0 10px; font-size: clamp(1.6rem, 3.4vw, 2.2rem); }
.page-hero p { color: #d9ecff; max-width: 700px; margin: 0; font-size: 1.05rem; }
.breadcrumbs {
  font-size: 0.85rem;
  color: #bcd9f5;
  margin-bottom: 14px;
}
.breadcrumbs a { color: #bcd9f5; }
.breadcrumbs span { margin: 0 6px; }

/* ---------- Sections ---------- */
section { padding: 56px 0; }
section.tight { padding: 34px 0; }
section.alt { background: var(--color-surface); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }

.section-head { max-width: 700px; margin: 0 auto 36px; text-align: center; }
.section-head h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0 0 10px; }
.section-head p { color: var(--color-ink-soft); margin: 0; }
.eyebrow {
  display: inline-block;
  color: var(--color-accent-dark);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* ---------- Grids & Cards ---------- */
.grid {
  display: grid;
  gap: 20px;
}
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); }

.calc-card .calc-icon {
  width: 46px; height: 46px;
  border-radius: 10px;
  background: #eaf3fb;
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
}
.calc-card h3 { margin: 0 0 8px; font-size: 1.08rem; }
.calc-card p { margin: 0 0 14px; color: var(--color-ink-soft); font-size: 0.92rem; }
.calc-card .calc-link { font-weight: 700; font-size: 0.9rem; }

.cat-card { text-align: center; }
.cat-card .cat-icon {
  width: 52px; height: 52px; margin: 0 auto 12px;
  border-radius: 50%;
  background: #fff1e8;
  color: var(--color-accent-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.cat-card h3 { margin: 0 0 6px; font-size: 1rem; }
.cat-card p { margin: 0; color: var(--color-ink-soft); font-size: 0.86rem; }

.step-card { position: relative; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--color-primary); color: #fff; font-weight: 800;
  margin-bottom: 12px;
}

/* ---------- Calculator UI ---------- */
.calc-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 900px) {
  .calc-layout { grid-template-columns: 1fr; }
}

.calc-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.calc-panel h2 { margin-top: 0; font-size: 1.25rem; }

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--color-ink);
}
.field .hint { font-size: 0.8rem; color: var(--color-ink-soft); margin-top: 4px; }
.field input[type="number"],
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field select {
  width: 100%;
  padding: 11px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
  font-family: inherit;
  background: #fbfdff;
}
.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 520px) { .field-row { grid-template-columns: 1fr; } }

.range-row { display: flex; align-items: center; gap: 10px; }
.range-row input[type="range"] { flex: 1; }
.range-value { min-width: 64px; text-align: right; font-weight: 700; color: var(--color-primary); }

.calc-result {
  position: sticky;
  top: 84px;
}
.result-box {
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 26px;
  margin-bottom: 18px;
}
.result-box .result-label {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #cfe6ff;
  font-weight: 700;
  margin-bottom: 6px;
}
.result-box .result-value {
  font-size: 2.4rem;
  font-weight: 900;
  margin-bottom: 4px;
}
.result-box .result-sub { color: #cfe6ff; font-size: 0.9rem; }
.result-breakdown {
  margin-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.25);
  padding-top: 14px;
}
.result-breakdown .row {
  display: flex; justify-content: space-between;
  font-size: 0.88rem; padding: 4px 0; color: #eaf4ff;
}
.result-breakdown .row strong { color: #fff; }

.privacy-note {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: #eefaf1;
  border: 1px solid #cdeed8;
  color: #16693f;
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 0.88rem;
  margin-top: 4px;
}

.cta-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  text-align: center;
}
.cta-box h3 { margin: 0 0 8px; font-size: 1.05rem; }
.cta-box p { margin: 0 0 16px; color: var(--color-ink-soft); font-size: 0.9rem; }

/* ---------- Ad slots ---------- */
.ad-slot {
  background: #eef2f6;
  border: 1px dashed #b7c5d3;
  border-radius: var(--radius-md);
  color: #6b7d8c;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 100px;
  margin: 28px 0;
}
.ad-slot.ad-leaderboard { min-height: 90px; }
.ad-slot.ad-sidebar { min-height: 250px; }
.ad-slot.ad-infeed { min-height: 120px; }

/* ---------- Sponsored listing ---------- */
.sponsored-tag {
  display: inline-block;
  background: #fff1e8;
  color: var(--color-accent-dark);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 5px;
  margin-bottom: 8px;
}

/* ---------- Listing cards ---------- */
.listing-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
}
.listing-card.is-sponsored { border-color: #ffd6b0; background: #fffaf5; }
@media (max-width: 720px) {
  .listing-card { grid-template-columns: 1fr; text-align: left; }
}
.listing-logo {
  width: 58px; height: 58px;
  border-radius: 12px;
  background: #eaf3fb;
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 1.2rem;
}
.listing-name { font-size: 1.08rem; font-weight: 800; margin: 0 0 4px; }
.listing-meta { color: var(--color-ink-soft); font-size: 0.88rem; margin: 0 0 6px; }
.listing-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.listing-tags span {
  background: #eef2f6;
  color: var(--color-ink-soft);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
}
.rating { color: var(--color-accent-dark); font-weight: 800; font-size: 0.92rem; }
.listing-actions { display: flex; flex-direction: column; gap: 8px; min-width: 150px; }

/* ---------- Category / City chips ---------- */
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-ink);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
}
.chip:hover { border-color: var(--color-primary); color: var(--color-primary); text-decoration: none; }

/* ---------- FAQ ---------- */
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin-bottom: 12px;
}
.faq-item summary {
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.3rem; color: var(--color-primary); }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { margin: 12px 0 0; color: var(--color-ink-soft); }

/* ---------- Forms (lead gen) ---------- */
.lead-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.form-success {
  display: none;
  background: #eefaf1;
  border: 1px solid #cdeed8;
  color: #16693f;
  border-radius: var(--radius-md);
  padding: 16px;
  font-weight: 600;
}
.form-success.is-visible { display: block; }
.form-error {
  display: none;
  background: #fdedec;
  border: 1px solid #f5c6c2;
  color: #a3291f;
  border-radius: var(--radius-md);
  padding: 16px;
  font-weight: 600;
}
.form-error.is-visible { display: block; }

/* ---------- Table ---------- */
table.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
table.compare-table th, table.compare-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  font-size: 0.9rem;
}
table.compare-table th { background: #eef4fa; font-weight: 800; }
table.compare-table tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-ink);
  color: #c7d4de;
  padding: 50px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 30px;
}
@media (max-width: 800px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.site-footer h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 14px;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 9px; }
.site-footer a { color: #c7d4de; font-size: 0.88rem; }
.site-footer a:hover { color: #fff; }
.footer-brand p { color: #97a8b6; font-size: 0.88rem; max-width: 320px; }
.footer-bottom {
  border-top: 1px solid #26394a;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.8rem;
  color: #8ea0b0;
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.disclaimer {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

@media (max-width: 780px) {
  .main-nav { position: fixed; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; padding: 16px 20px; border-bottom: 1px solid var(--color-border); gap: 14px; display: none; }
  .main-nav.is-open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .nav-actions { display: none; }
}