/* Scoped HVAC-tool UX polish. The default state keeps the form focused; the
   result state opens the comparison layout after a calculation completes. */
body[data-hvac-tool] {
  overflow-x: hidden;
}

body[data-hvac-tool] .page-hero {
  padding-block: 42px 30px;
}

body[data-hvac-tool] .page-hero .lead {
  max-width: 820px;
}

body[data-hvac-tool] .selector-layout {
  grid-template-columns: minmax(0, 840px);
  justify-content: center;
  max-width: 840px;
  margin-inline: auto;
}

body[data-hvac-tool][data-tool-result-visible="true"] .selector-layout {
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr);
  max-width: none;
}

.selector-fieldset {
  min-inline-size: 0;
  border: 0;
  padding: 0;
  margin: 0;
}

.selector-fieldset > legend {
  padding: 0;
  margin: 0 0 14px;
  color: #193247;
  font-weight: 800;
  font-size: 1.04rem;
}

.selector-result-answer {
  margin: 18px 0 24px;
  padding: 18px 20px;
  border: 1px solid rgba(11, 87, 208, .18);
  border-left: 4px solid var(--header-blue, #0B57D0);
  border-radius: 14px;
  background: linear-gradient(135deg, #eff6ff, #f8fbff);
}

.selector-result-answer__eyebrow {
  margin: 0 0 5px;
  color: var(--header-blue-dark, #0842A0);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.selector-result-answer__text {
  margin: 0;
  color: #193247;
  font-size: 1.02rem;
  line-height: 1.55;
}

.selector-result-answer__action {
  margin-top: 14px;
}

.selector-details {
  margin-top: 16px;
  border-top: 1px solid rgba(25, 45, 61, .12);
  padding-top: 12px;
}

.selector-details summary {
  color: #234e70;
  cursor: pointer;
  font-weight: 800;
}

.selector-details summary:focus-visible,
.selector-fieldset input:focus-visible,
.selector-fieldset select:focus-visible,
.selector-fieldset textarea:focus-visible {
  outline: 3px solid rgba(11, 87, 208, .28);
  outline-offset: 2px;
}

.comparison-tool-shell {
  min-width: 0;
}

.comparison-count {
  margin: 18px 0 8px;
  color: #193247;
  font-size: 1.02rem;
}

.comparison-count strong {
  color: var(--header-blue-dark, #0842A0);
  font-size: 1.35rem;
}

.comparison-empty {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin: 16px 0;
  padding: 16px;
  border: 1px solid #fde68a;
  border-radius: 12px;
  background: #fff7e8;
  color: #6c4b12;
}

.comparison-empty[hidden] {
  display: none;
}

.comparison-empty .button {
  margin: 0;
}

/* Supporting tool links should read as a compact next-step sequence rather
   than three full-height content sections. Keep this scoped to the generated
   HVAC markers so the site's normal section rhythm remains unchanged. */
body[data-hvac-tool] section[data-radiator-tool-link],
body[data-hvac-tool] section[data-hydraulic-tool-link] {
  padding-block: 24px;
}

body[data-hvac-tool] section[data-radiator-tool-link] .selector-disclaimer,
body[data-hvac-tool] section[data-hydraulic-tool-link] .selector-disclaimer {
  margin-top: 0;
}

body[data-hvac-tool] section[data-radiator-tool-link] + section[data-hydraulic-tool-link] {
  padding-top: 0;
}

body[data-hvac-tool] section[data-r290-comparison-link] {
  padding-block: 32px 24px;
}

@media(max-width:900px) {
  body[data-hvac-tool] .ecommerce-menu-btn span {
    display: none;
  }

  body[data-hvac-tool][data-tool-result-visible="true"] .selector-layout {
    grid-template-columns: 1fr;
  }
}

@media(max-width:640px) {
  body[data-hvac-tool] .page-hero {
    padding-block: 30px 24px;
  }

  body[data-hvac-tool] .selector-layout {
    max-width: none;
  }

  .selector-result-answer {
    padding: 16px;
  }

  .comparison-empty {
    align-items: stretch;
  }

  .comparison-empty .button {
    width: 100%;
  }

  body[data-hvac-tool] section[data-radiator-tool-link],
  body[data-hvac-tool] section[data-hydraulic-tool-link] {
    padding-block: 18px;
  }

  body[data-hvac-tool] section[data-r290-comparison-link] {
    padding-block: 24px 18px;
  }
}

@media(prefers-reduced-motion: reduce) {
  body[data-hvac-tool] .site-nav {
    transition: none;
  }

  body[data-hvac-tool] *,
  body[data-hvac-tool] *::before,
  body[data-hvac-tool] *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}