/* ==========================================================================
   /hvac landing page styles — depends on tokens.css and global.css
   Hero locked to consensus Variant B copy (2026-06-01).
   ========================================================================== */

/* --- Hero --- */
.hvac-hero {
  position: relative;
  background: oklch(94% 0.012 80);     /* warm-tan, slightly darker than cream */
  padding-block: clamp(7rem, 4rem + 10vw, 12rem) clamp(3rem, 1.5rem + 5vw, 5rem);
  border-bottom: 1px solid var(--color-line);
}
.hvac-hero__inner {
  max-width: 960px;
  display: grid;
  gap: var(--space-md);
}
.hvac-hero__h1 {
  font-size: clamp(2.25rem, 1.5rem + 3vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  max-width: 22ch;
}
.hvac-hero__sub {
  font-size: var(--text-lg);
  line-height: 1.45;
  color: var(--color-ink);
  max-width: 60ch;
  margin-top: var(--space-sm);
}
.hvac-hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
}
.hvac-hero__microcopy {
  font-size: var(--text-sm);
  color: var(--color-muted);
  max-width: 32ch;
  line-height: 1.4;
}
.hvac-hero__trust {
  margin-top: clamp(2.5rem, 1.5rem + 3vw, 4rem);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-line);
}
.hvac-trust__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-muted);
  text-align: center;
}
.hvac-trust__item strong { color: var(--color-ink); font-weight: 600; }
.hvac-trust__divider { color: var(--color-line); }

/* --- CTA button --- */
.hvac-cta {
  display: inline-block;
  background: var(--color-ink);
  color: var(--color-cream);
  font-weight: 600;
  font-size: var(--text-base);
  padding: 0.875rem 1.75rem;
  border-radius: 999px;
  transition: transform var(--duration-fast) var(--ease-out-expo),
              background var(--duration-fast);
  letter-spacing: 0.005em;
}
.hvac-cta:hover { background: var(--color-black); transform: translateY(-1px); }
.hvac-cta:focus-visible { outline: 2px solid var(--color-ink); outline-offset: 3px; }
.hvac-cta--large {
  padding: 1.125rem 2.25rem;
  font-size: var(--text-lg);
}

/* --- Generic section --- */
.hvac-section {
  padding-block: var(--space-section);
}
.hvac-section + .hvac-section { border-top: 1px solid var(--color-line); }

/* --- Voicemail-as-employee section (runacall.com inspired, with full reframe) --- */
.hvac-section--quote {
  padding-block: var(--space-section);
  background: var(--color-cream-deep);
}
.hvac-quote__inner {
  display: grid;
  gap: var(--space-lg);
}
.hvac-quote {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 1.20rem + 2.4vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  max-width: 30ch;
  margin: 0 auto;
  text-align: center;
}
.hvac-quote__body {
  max-width: 60ch;
  margin: 0 auto;
  display: grid;
  gap: var(--space-md);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-ink);
}
.hvac-section__h2 {
  font-size: var(--text-xl);
  margin-top: var(--space-sm);
  max-width: 32ch;
  margin-bottom: var(--space-lg);
}
.hvac-section__footnote {
  margin-top: var(--space-md);
  font-size: var(--text-xs);
  color: var(--color-muted);
  font-style: italic;
}

/* --- Section: bleed (leak list) --- */
.hvac-leak-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.hvac-leak {
  background: var(--color-cream-deep);
  padding: var(--space-md);
  border-radius: 8px;
  display: grid;
  gap: var(--space-sm);
  align-content: start;
}
.hvac-leak__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-ink);
  letter-spacing: var(--tracking-tight);
  line-height: 1.2;
}
.hvac-leak__detail {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.55;
}

/* --- Section: proof (leftclick.ai-inspired — stat is the visual hero) --- */
.hvac-proof__lede {
  font-size: var(--text-base);
  color: var(--color-muted);
  max-width: 60ch;
  margin-bottom: var(--space-lg);
  line-height: 1.55;
}
.hvac-proof-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.hvac-proof {
  background: var(--color-cream-deep);
  padding: var(--space-lg) var(--space-md) var(--space-md);
  border-radius: 8px;
  display: grid;
  gap: var(--space-md);
  align-content: start;
  border: 1px solid transparent;
  transition: border-color var(--duration-fast);
}
.hvac-proof:hover { border-color: var(--color-line); }
.hvac-proof__metric {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 1.5rem + 2.5vw, 3.5rem);
  color: var(--color-ink);
  letter-spacing: -0.03em;
  line-height: 1;
  display: grid;
  gap: 0.25rem;
}
.hvac-proof__metric-unit {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-muted);
}
.hvac-proof__body {
  display: grid;
  gap: 0.25rem;
  padding-top: var(--space-xs);
  border-top: 1px solid var(--color-line);
}
.hvac-proof__name {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  margin-top: var(--space-xs);
}
.hvac-proof__client {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 0.25rem;
}
.hvac-proof__detail {
  font-size: var(--text-sm);
  color: var(--color-ink);
  line-height: 1.5;
  margin-top: var(--space-xs);
  max-width: 36ch;
}
.hvac-proof__community {
  margin-top: var(--space-lg);
  font-size: var(--text-sm);
  color: var(--color-muted);
  max-width: 65ch;
  line-height: 1.55;
}
.hvac-proof__community-link {
  color: var(--color-ink);
  font-weight: 600;
  border-bottom: 1px solid var(--color-ink);
  transition: opacity var(--duration-fast);
}
.hvac-proof__community-link:hover { opacity: 0.7; }

/* --- Section: ship (week-by-week) --- */
.hvac-weeks {
  list-style: none;
  padding: 0;
  counter-reset: week;
  display: grid;
  gap: var(--space-md);
}
.hvac-week {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: var(--space-md);
  align-items: start;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-line);
}
.hvac-week:first-child { border-top: 0; padding-top: 0; }
.hvac-week__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-ink);
  letter-spacing: var(--tracking-tight);
}
.hvac-week__title {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.hvac-week__detail {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.55;
  max-width: 60ch;
}

@media (max-width: 600px) {
  .hvac-week { grid-template-columns: 1fr; gap: var(--space-xs); }
}

/* --- Section: how (4-step, leftclick.ai-inspired) --- */
.hvac-how {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.hvac-how__step {
  background: var(--color-cream);
  padding: var(--space-md);
  border-radius: 8px;
  border: 1px solid var(--color-line);
  display: grid;
  gap: 0.75rem;
  align-content: start;       /* anchor label/title/body to top; extra height stays at the bottom so titles align across cards */
}
.hvac-how__label {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 500;
}
.hvac-how__title {
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
}
.hvac-how__step p {
  font-size: var(--text-sm);
  color: var(--color-ink);
  line-height: 1.6;
}

/* --- Section: why (portrait left, text right; stacks on mobile) --- */
.hvac-why {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: minmax(220px, 320px) 1fr;
  align-items: start;
  font-size: var(--text-base);
  line-height: 1.65;
}
.hvac-why__portrait {
  margin: 0;
  display: grid;
  gap: var(--space-xs);
}
.hvac-why__portrait img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}
.hvac-why__portrait figcaption {
  font-size: var(--text-xs);
  color: var(--color-muted);
  letter-spacing: 0.01em;
}
.hvac-why__text {
  display: grid;
  gap: var(--space-md);
  max-width: 60ch;
}
@media (max-width: 720px) {
  .hvac-why {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .hvac-why__portrait {
    max-width: 280px;
  }
}

/* --- Section: effort (table) --- */
.hvac-effort-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.hvac-effort-table th,
.hvac-effort-table td {
  text-align: left;
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--color-line);
}
.hvac-effort-table thead th {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-muted);
}
.hvac-effort-table tbody tr:last-child td,
.hvac-effort-table tbody tr:last-child th {
  border-bottom: 0;
  border-top: 2px solid var(--color-ink);
  font-weight: 600;
  padding-top: 1rem;
}
.hvac-effort__not {
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-muted);
  font-style: italic;
}

/* --- Section: pricing --- */
.hvac-pricing {
  display: grid;
  gap: var(--space-sm);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.hvac-price-tier {
  padding: var(--space-md);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: transparent;
  display: grid;
  gap: 0.5rem;
}
.hvac-price-tier--primary {
  background: var(--color-cream-deep);
  border-color: var(--color-ink);
}
.hvac-price-tier h3 {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 600;
}
.hvac-price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-ink);
  letter-spacing: var(--tracking-tight);
}
.hvac-price-tier p:last-of-type {
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.5;
}
.hvac-risk-reversal {
  list-style: none;
  padding: 0;
  margin-top: var(--space-lg);
  display: grid;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-ink);
}
.hvac-risk-reversal li::before {
  content: '— ';
  color: var(--color-muted);
}

/* --- Section: isn't for --- */
.hvac-isnt-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-md);
  max-width: 65ch;
}
.hvac-isnt-list li {
  padding-left: var(--space-md);
  position: relative;
  font-size: var(--text-base);
  line-height: 1.55;
}
.hvac-isnt-list li::before {
  content: '✕';
  position: absolute;
  left: 0;
  color: var(--color-muted);
  font-weight: 700;
}

/* --- Section: FAQ --- */
.hvac-faq {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
  max-width: 70ch;
}
.hvac-faq__item {
  border-bottom: 1px solid var(--color-line);
  padding: var(--space-md) 0;
}
.hvac-faq__item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: var(--text-base);
  list-style: none;
  position: relative;
  padding-right: 2rem;
}
.hvac-faq__item summary::-webkit-details-marker { display: none; }
.hvac-faq__item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 0;
  font-size: var(--text-lg);
  color: var(--color-muted);
  transition: transform var(--duration-fast);
}
.hvac-faq__item[open] summary::after { content: '−'; }
.hvac-faq__item p {
  margin-top: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-muted);
  line-height: 1.65;
  max-width: 65ch;
}
.hvac-faq__more {
  margin-top: var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-muted);
}
.hvac-faq__link {
  color: var(--color-ink);
  font-weight: 600;
  border-bottom: 1px solid var(--color-ink);
  transition: opacity var(--duration-fast);
}
.hvac-faq__link:hover { opacity: 0.7; }

/* --- CTA section (final) --- */
.hvac-cta-section {
  background: var(--color-black);
  color: var(--color-on-dark);
  padding-block: var(--space-section);
}
.hvac-cta-section__inner {
  display: grid;
  gap: var(--space-sm);
  justify-items: start;
  max-width: 720px;
}
.hvac-cta-section__h2 {
  font-size: var(--text-xl);
  color: var(--color-on-dark);
  max-width: 18ch;
}
.hvac-cta-section__sub {
  font-size: var(--text-base);
  color: var(--color-on-dark-muted);
  max-width: 55ch;
  line-height: 1.55;
}
.hvac-cta-section__pricing {
  font-size: var(--text-sm);
  color: var(--color-on-dark);
  letter-spacing: 0.01em;
  margin-block: var(--space-xs) var(--space-sm);
  font-weight: 500;
}
.hvac-cta-section .hvac-cta {
  background: var(--color-cream);
  color: var(--color-ink);
}
.hvac-cta-section .hvac-cta:hover { background: oklch(98% 0.006 85); }
.hvac-cta-section__microcopy {
  font-size: var(--text-sm);
  color: var(--color-on-dark-muted);
  margin-top: 0.5rem;
}