:root {
  --ink: #101518;
  --ink-soft: #283036;
  --paper: #f5f4f0;
  --white: #ffffff;
  --orange: #f15a24;
  --orange-dark: #ce4212;
  --line: #d8d9d6;
  --muted: #667078;
  --dark-muted: #aeb6ba;
  --green: #c7f05a;
  --shell: min(1180px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

.section-shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(16, 21, 24, 0.12);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner {
  width: var(--shell);
  min-height: 90px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.bei-logo {
  width: 132px;
  height: auto;
  flex-shrink: 0;
}

.brand-mark {
  width: 39px;
  height: 39px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--orange);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.brand > span:last-child {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand strong {
  font-size: 20px;
  line-height: 1;
  letter-spacing: -0.04em;
}

.brand small {
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}

.desktop-nav a {
  position: relative;
  padding: 28px 0;
  font-size: 13px;
  font-weight: 700;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.phone-link {
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.button {
  min-height: 50px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.015em;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-small {
  min-height: 42px;
  padding: 0 16px;
  color: var(--white);
  background: var(--ink);
}

.button-small:hover {
  background: var(--orange);
}

.mobile-menu {
  display: none;
  position: relative;
}

.mobile-menu summary {
  width: 44px;
  height: 44px;
  padding: 12px 10px;
  list-style: none;
  cursor: pointer;
  background: var(--ink);
  border-radius: 3px;
}

.mobile-menu summary::-webkit-details-marker {
  display: none;
}

.mobile-menu summary span {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: var(--white);
}

.mobile-menu nav {
  position: absolute;
  top: 52px;
  right: 0;
  width: min(300px, calc(100vw - 32px));
  padding: 12px;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 20px 60px rgba(16, 21, 24, 0.16);
}

.mobile-menu nav a {
  padding: 15px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 750;
}

.mobile-menu nav a:last-child {
  color: var(--orange-dark);
  border-bottom: 0;
}

.hero {
  min-height: 700px;
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 62% 82%, rgba(241, 90, 36, 0.14), transparent 30%),
    var(--ink);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(
      90deg,
      rgba(16, 21, 24, 0.98) 0%,
      rgba(16, 21, 24, 0.93) 22%,
      rgba(16, 21, 24, 0.58) 43%,
      rgba(16, 21, 24, 0.08) 64%,
      transparent 100%
    ),
    linear-gradient(0deg, rgba(16, 21, 24, 0.42), transparent 45%);
}

.hero::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% + 225px);
  z-index: 2;
  width: 1px;
  opacity: 0.22;
  background: var(--white);
}

.hero-image {
  position: absolute;
  inset: 0;
  background-image: url("images/boiler-room-installation.png");
  background-position: right bottom;
  background-size: auto 100%;
  background-repeat: no-repeat;
  filter: saturate(0.95) contrast(1.02);
}

.installation-photo, .project-photo { margin: 36px 0 0; }
.installation-photo img, .project-photo img { width: 100%; height: auto; object-fit: cover; }
.installation-photo img { max-height: 420px; }
.project-photo img { max-height: 470px; object-position: center; }
.installation-photo figcaption, .project-photo figcaption { margin-top: 10px; font-size: 13px; color: inherit; opacity: .7; }
.project-photo { margin: 26px 0 44px; }

.comparison-teaser {
  padding: 76px 0;
  background: #e9eceb;
  border-bottom: 1px solid var(--line);
}
.comparison-teaser-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.comparison-teaser h2 { max-width: 600px; margin: 0; font-size: clamp(34px, 4vw, 56px); letter-spacing: -.05em; line-height: 1.06; }
.comparison-teaser p:not(.eyebrow) { max-width: 530px; margin: 0 0 25px; color: var(--ink-soft); font-size: 17px; line-height: 1.65; }
.comparison-teaser .button { color: var(--white); background: var(--ink); }
.comparison-teaser .button:hover { background: var(--orange-dark); }

.comparison-page { background: var(--paper); }
.comparison-header { min-height: 82px; background: var(--white); border-bottom: 1px solid var(--line); }
.comparison-header .section-shell { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.comparison-header nav { display: flex; flex-wrap: wrap; gap: 24px; font-size: 14px; font-weight: 700; }
.comparison-header nav a:hover { color: var(--orange-dark); }
.comparison-intro { padding: 92px 0 76px; display: grid; grid-template-columns: 1fr .78fr; gap: 72px; align-items: center; }
.comparison-intro h1 { margin: 0; max-width: 790px; font-size: clamp(48px, 6vw, 84px); line-height: 1; letter-spacing: -.065em; }
.comparison-intro p:not(.eyebrow) { max-width: 670px; font-size: 18px; line-height: 1.65; color: var(--ink-soft); }
.comparison-intro img { width: 100%; max-height: 480px; object-fit: cover; }
.comparison-table-section { padding: 75px 0 105px; background: var(--white); }
.comparison-table-section h2, .comparison-followup h2 { margin: 0 0 28px; font-size: clamp(34px, 4vw, 54px); letter-spacing: -.05em; line-height: 1.1; }
.comparison-table { width: 100%; border-collapse: collapse; table-layout: fixed; }
.comparison-table th, .comparison-table td { padding: 22px 20px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 15px; line-height: 1.55; }
.comparison-table thead th { color: var(--white); background: var(--ink); font-size: 14px; }
.comparison-table th:first-child { width: 20%; }
.comparison-table tbody th { color: var(--ink); font-weight: 800; }
.comparison-table td { color: var(--ink-soft); }
.comparison-followup { padding: 94px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }
.comparison-followup p, .comparison-followup li { font-size: 17px; line-height: 1.65; color: var(--ink-soft); }
.comparison-followup ul { padding-left: 20px; }
.comparison-followup .button { margin-top: 18px; color: var(--white); background: var(--orange); }
.comparison-page footer { padding: 34px 0; }
.comparison-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }

@media (max-width: 760px) {
  .comparison-teaser-grid, .comparison-intro, .comparison-followup { grid-template-columns: 1fr; gap: 28px; }
  .comparison-teaser { padding: 58px 0; }
  .comparison-header .section-shell { min-height: 76px; }
  .comparison-header .brand > span:last-child { display: none; }
  .comparison-header nav { gap: 12px; }
  .comparison-intro { padding: 60px 0; }
  .comparison-table-section { padding: 65px 0; overflow-x: auto; }
  .comparison-table { min-width: 650px; }
  .comparison-table th, .comparison-table td { padding: 16px 12px; }
  .comparison-followup { padding: 65px 0; }
}

.hero-grid {
  width: var(--shell);
  min-height: 700px;
  margin-inline: auto;
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 720px) minmax(260px, 1fr);
  align-items: end;
  gap: 70px;
  padding: 88px 0 76px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--orange-dark);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow-light {
  color: #ff8a61;
}

.hero h1 {
  max-width: 750px;
  margin: 0;
  font-size: clamp(52px, 6vw, 76px);
  font-weight: 760;
  line-height: 0.91;
  letter-spacing: -0.072em;
}

.hero h1 em {
  color: var(--green);
  font-style: normal;
  font-weight: 350;
}

.hero-intro {
  max-width: 610px;
  margin: 30px 0 0;
  color: #d2d7d9;
  font-size: 18px;
  line-height: 1.62;
}

.hero-certifications {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-certifications span {
  padding: 9px 11px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  background: rgba(16, 21, 24, 0.38);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button-primary {
  color: var(--white);
  background: var(--orange);
}

.button-primary:hover {
  background: var(--orange-dark);
}

.button-ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.36);
  background: rgba(255, 255, 255, 0.03);
}

.button-ghost:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.hero-proof {
  margin-top: 42px;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  color: var(--dark-muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-proof span {
  padding-right: 16px;
  margin-right: 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.25);
}

.hero-proof span:last-child {
  border-right: 0;
}

.hero-card {
  align-self: end;
  padding: 28px;
  display: flex;
  flex-direction: column;
  border-top: 3px solid var(--orange);
  background: rgba(16, 21, 24, 0.86);
  backdrop-filter: blur(12px);
}

.hero-card p {
  margin: 0 0 24px;
  color: #ff8a61;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-card strong {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.hero-card > span {
  color: var(--dark-muted);
  font-size: 13px;
  line-height: 1.55;
}

.hero-card a {
  margin-top: 28px;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 12px;
  font-weight: 800;
}

.trust-bar {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.trust-inner {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
}

.trust-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-align: center;
  text-transform: uppercase;
}

.trust-inner span {
  width: 4px;
  height: 4px;
  background: var(--orange);
}

.product-section {
  padding: 120px 0 130px;
}

.section-heading {
  display: grid;
  grid-template-columns: 1.1fr 0.78fr;
  align-items: end;
  gap: 100px;
}

.section-heading h2,
.technology-copy h2,
.resources-intro h2,
.contact-inner h2 {
  margin: 0;
  font-size: clamp(40px, 5vw, 66px);
  font-weight: 730;
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.section-heading > p,
.resources-intro > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.product-grid {
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.product-card {
  min-height: 550px;
  padding: 24px 25px 26px;
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--white);
  transition:
    transform 220ms ease,
    box-shadow 220ms ease;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 55px rgba(16, 21, 24, 0.09);
}

.product-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-number {
  color: var(--orange);
  font-family: var(--font-geist-mono), monospace;
  font-size: 11px;
  font-weight: 800;
}

.product-meta {
  color: var(--muted);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.product-image-wrap {
  height: 212px;
  margin: 22px -5px 26px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(rgba(16, 21, 24, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 21, 24, 0.035) 1px, transparent 1px),
    #f0f1ef;
  background-size: 24px 24px;
}

.product-image {
  width: auto;
  height: 82%;
  object-fit: contain;
  filter: drop-shadow(0 18px 16px rgba(16, 21, 24, 0.18));
  transition: transform 260ms ease;
}

.product-image.product-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
  filter: none;
}

.product-card:nth-child(2) .product-image-wrap {
  height: 300px;
  background: #1d2529;
}

.product-card:nth-child(2) .product-image.product-photo {
  object-fit: contain;
}

.product-card:hover .product-image {
  transform: scale(1.035);
}

.product-eyebrow {
  margin: 0 0 8px !important;
  color: var(--orange-dark) !important;
  font-size: 10px !important;
  font-weight: 900;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.product-card h3 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.04em;
}

.product-card > p {
  margin: 14px 0 24px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.product-card > .product-detail {
  margin-top: -10px;
}

.product-card > a {
  margin-top: auto;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  font-size: 12px;
  font-weight: 850;
}

.product-card > a:hover {
  color: var(--orange-dark);
}

.technology-section {
  padding: 126px 0;
  color: var(--white);
  background:
    radial-gradient(circle at 8% 0%, rgba(241, 90, 36, 0.18), transparent 28%),
    var(--ink);
}

.technology-grid {
  display: grid;
  grid-template-columns: 0.76fr 1.12fr;
  gap: 110px;
}

.technology-copy {
  align-self: start;
  position: sticky;
  top: 130px;
}

.technology-copy p:not(.eyebrow) {
  margin: 28px 0 26px;
  color: var(--dark-muted);
  font-size: 16px;
  line-height: 1.75;
}

.text-link-light {
  display: inline-flex;
  gap: 22px;
  padding-bottom: 7px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.42);
  font-size: 12px;
  font-weight: 850;
}

.text-link-light:hover {
  color: #ff8a61;
  border-color: #ff8a61;
}

.advantage-list {
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.advantage-list article {
  padding: 30px 0;
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.advantage-list article > span {
  color: #ff8a61;
  font-family: var(--font-geist-mono), monospace;
  font-size: 11px;
  font-weight: 800;
}

.advantage-list h3 {
  margin: 0 0 9px;
  font-size: 21px;
  letter-spacing: -0.03em;
}

.advantage-list p {
  max-width: 550px;
  margin: 0;
  color: var(--dark-muted);
  font-size: 14px;
  line-height: 1.65;
}

.results-section {
  padding: 120px 0;
}

.results-heading {
  align-items: end;
}

.quiet-link {
  justify-self: end;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--ink);
  font-size: 12px;
  font-weight: 850;
}

.quiet-link:hover {
  color: var(--orange-dark);
  border-color: var(--orange-dark);
}

.case-study-grid {
  margin-top: 58px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.case-study {
  min-height: 480px;
  padding: 42px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--white);
}

.case-study-featured {
  color: var(--white);
  border-color: var(--orange);
  background:
    linear-gradient(145deg, rgba(16, 21, 24, 0.08), rgba(16, 21, 24, 0.28)),
    var(--orange);
}

.case-label {
  margin-bottom: 20px;
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}

.ceremony-photo {
  width: 100%;
  height: 220px;
  margin-bottom: 28px;
  object-fit: cover;
  object-position: center;
  border-radius: 2px;
}

.case-study h3 {
  margin: 0;
  font-size: 34px;
  letter-spacing: -0.045em;
}

.case-study > p {
  max-width: 520px;
  margin: 15px 0 34px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.case-study-featured > p {
  color: rgba(255, 255, 255, 0.82);
}

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.metrics > div {
  padding-top: 18px;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.case-study-featured .metrics > div {
  border-color: rgba(255, 255, 255, 0.34);
}

.metrics strong {
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.05em;
}

.metrics span {
  margin-top: 7px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-study-featured .metrics span {
  color: rgba(255, 255, 255, 0.72);
}

.case-study > a {
  margin-top: auto;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 850;
}

.case-study:not(.case-study-featured) > a {
  border-top: 1px solid var(--line);
}

.proposal-section {
  padding: 110px 0;
  color: var(--white);
  background: #1d2529;
}

.proposal-grid {
  display: grid;
  grid-template-columns: 0.88fr 1fr;
  gap: 90px;
  align-items: center;
}

.proposal-copy {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 28px;
}

.proposal-badge {
  width: 86px;
  height: 86px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: var(--green);
  border-radius: 50%;
  font-size: 38px;
  font-weight: 900;
  letter-spacing: -0.07em;
}

.proposal-copy h2 {
  margin: 0;
  font-size: clamp(36px, 4vw, 54px);
  line-height: 1;
  letter-spacing: -0.055em;
}

.proposal-copy p:last-child {
  margin: 24px 0 0;
  color: var(--dark-muted);
  font-size: 15px;
  line-height: 1.7;
}

.proposal-options {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.proposal-options a {
  min-height: 104px;
  display: grid;
  grid-template-columns: 44px 1fr 20px;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: padding 180ms ease;
}

.proposal-options a:hover {
  padding-inline: 12px;
  color: var(--green);
}

.proposal-options a > span {
  color: #ff8a61;
  font-family: var(--font-geist-mono), monospace;
  font-size: 10px;
  font-weight: 800;
}

.proposal-options a div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.proposal-options strong {
  font-size: 17px;
}

.proposal-options small {
  color: var(--dark-muted);
  font-size: 11px;
}

.proposal-options b {
  font-size: 14px;
}

.resources-section {
  padding: 120px 0 130px;
  display: grid;
  grid-template-columns: 0.67fr 1fr;
  gap: 120px;
}

.resources-intro {
  align-self: start;
  position: sticky;
  top: 130px;
}

.resources-intro > p:last-child {
  margin-top: 28px;
}

.resource-list {
  border-top: 1px solid var(--ink);
}

.resource-list a {
  min-height: 122px;
  display: grid;
  grid-template-columns: 48px 1fr 24px;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  transition:
    padding 180ms ease,
    color 180ms ease;
}

.resource-list a:hover {
  padding-inline: 12px;
  color: var(--orange-dark);
}

.resource-list a > span {
  color: var(--orange-dark);
  font-family: var(--font-geist-mono), monospace;
  font-size: 10px;
  font-weight: 800;
}

.resource-list a div {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.resource-list strong {
  font-size: 20px;
  letter-spacing: -0.025em;
}

.resource-list small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.resource-list b {
  font-size: 14px;
}

.contact-band {
  padding: 90px 0;
  color: var(--white);
  background: var(--orange);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 70px;
}

.contact-inner .eyebrow {
  color: rgba(255, 255, 255, 0.72);
}

.contact-inner h2 {
  max-width: 730px;
}

.contact-actions {
  display: flex;
  align-items: center;
  gap: 30px;
}

.contact-band .button-primary {
  color: var(--white);
  background: var(--ink);
}

.contact-band .button-primary:hover {
  background: #283036;
}

.contact-phone {
  min-width: 140px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-phone small {
  color: rgba(255, 255, 255, 0.72);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-phone strong {
  font-size: 15px;
}

footer {
  padding: 70px 0 26px;
  color: var(--white);
  background: var(--ink);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  gap: 100px;
}

.brand-footer .brand-mark {
  color: var(--white);
}

.brand-footer small {
  color: var(--dark-muted);
}

.footer-brand > p {
  max-width: 420px;
  margin: 24px 0 0;
  color: var(--dark-muted);
  font-size: 13px;
  line-height: 1.65;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.footer-links > div {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links strong {
  margin-bottom: 8px;
  color: #ff8a61;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-links a {
  color: var(--dark-muted);
  font-size: 12px;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  margin-top: 60px;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #788288;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

@media (max-width: 1050px) {
  .desktop-nav,
  .phone-link {
    display: none;
  }

  .mobile-menu {
    display: block;
  }

  .header-actions {
    margin-left: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr 250px;
    gap: 38px;
  }

  .hero::after {
    display: none;
  }

  .section-heading {
    gap: 50px;
  }

  .product-grid {
    grid-template-columns: 1fr 1fr;
  }

  .product-card:last-child {
    grid-column: 1 / -1;
    min-height: 420px;
  }

  .product-card:last-child .product-image-wrap {
    height: 180px;
  }

  .technology-grid,
  .proposal-grid {
    gap: 60px;
  }

  .resources-section {
    gap: 70px;
  }

  .contact-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  :root {
    --shell: min(100% - 32px, 1180px);
  }

  html {
    scroll-padding-top: 75px;
  }

  .header-inner {
    min-height: 76px;
  }

  .bei-logo {
    width: 98px;
  }

  .header-actions {
    display: none;
  }

  .brand strong {
    font-size: 18px;
  }

  .hero,
  .hero-grid {
    min-height: 690px;
  }

  .hero::before {
    background:
      linear-gradient(
        90deg,
        rgba(16, 21, 24, 0.98) 0%,
        rgba(16, 21, 24, 0.9) 65%,
        rgba(16, 21, 24, 0.7) 100%
      ),
      linear-gradient(0deg, rgba(16, 21, 24, 0.6), transparent 55%);
  }

  .hero-image {
    background-position: 62% bottom;
  }

  .hero-grid {
    padding: 70px 0 34px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: stretch;
    gap: 32px;
  }

  .hero h1 {
    font-size: clamp(49px, 15.5vw, 72px);
  }

  .hero-intro {
    font-size: 16px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-proof {
    gap: 8px 0;
  }

  .hero-proof span {
    width: 50%;
    padding-right: 8px;
    margin-right: 0;
    border-right: 0;
  }

  .hero-card {
    display: none;
  }

  .trust-inner {
    min-height: 0;
    padding: 18px 0;
    flex-direction: column;
    gap: 8px;
  }

  .trust-inner span {
    display: none;
  }

  .product-section,
  .results-section,
  .resources-section {
    padding: 84px 0;
  }

  .section-heading,
  .technology-grid,
  .proposal-grid,
  .resources-section,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .section-heading h2,
  .technology-copy h2,
  .resources-intro h2,
  .contact-inner h2 {
    font-size: 43px;
  }

  .product-grid,
  .case-study-grid {
    grid-template-columns: 1fr;
  }

  .product-card,
  .product-card:last-child {
    min-height: 520px;
    grid-column: auto;
  }

  .technology-section,
  .proposal-section {
    padding: 84px 0;
  }

  .technology-copy,
  .resources-intro {
    position: static;
  }

  .advantage-list article {
    grid-template-columns: 40px 1fr;
  }

  .quiet-link {
    justify-self: start;
  }

  .case-study {
    min-height: 460px;
    padding: 30px;
  }

  .case-label {
    margin-bottom: 52px;
  }

  .proposal-copy {
    grid-template-columns: 58px 1fr;
    gap: 18px;
  }

  .proposal-badge {
    width: 58px;
    height: 58px;
    font-size: 26px;
  }

  .proposal-copy h2 {
    font-size: 38px;
  }

  .resource-list a {
    min-height: 116px;
  }

  .contact-band {
    padding: 70px 0;
  }

  .contact-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    max-width: 400px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}

@media (max-width: 420px) {
  .brand small {
    display: none;
  }

  .hero h1 {
    font-size: 48px;
  }

  .button {
    width: 100%;
  }

  .metrics {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .case-study {
    min-height: 550px;
  }

  .proposal-copy {
    display: block;
  }

  .proposal-badge {
    margin-bottom: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}

.industrial-page { background: var(--paper); }
.industrial-hero { position: relative; isolation: isolate; min-height: 590px; display: flex; align-items: center; overflow: hidden; background: var(--ink); color: white; }
.industrial-hero-photo { position: absolute; z-index: -2; inset: 0; background: url('images/heatsponge-industrial-installation.png') center top / cover no-repeat; opacity: .7; }
.industrial-hero::before { content: ''; position: absolute; z-index: -1; inset: 0; background: linear-gradient(90deg, rgba(16,21,24,.97) 0%, rgba(16,21,24,.87) 42%, rgba(16,21,24,.2) 100%); }
.industrial-hero-inner { padding: 108px 0; }
.industrial-hero h1 { max-width: 770px; margin: 22px 0; font-size: clamp(52px, 7vw, 94px); line-height: .99; letter-spacing: -.065em; }
.industrial-hero h1 em { color: var(--green); font-style: normal; }
.industrial-hero-inner > p:not(.eyebrow) { max-width: 625px; margin: 0 0 30px; color: #e1e6e5; font-size: 18px; line-height: 1.6; }
.industrial-proof { background: #e7ebe2; }
.industrial-proof .section-shell { display: flex; justify-content: space-between; gap: 24px; padding: 24px 0; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .09em; }
.industrial-intro { padding: 110px 0 60px; display: grid; grid-template-columns: 1fr 2fr; gap: 55px; }
.industrial-intro h2 { max-width: 650px; margin: 0; font-size: clamp(43px, 5vw, 68px); line-height: 1.06; letter-spacing: -.055em; }
.industrial-intro div > p { max-width: 730px; color: var(--muted); line-height: 1.65; font-size: 17px; }
.industrial-families { padding-bottom: 120px; }
.industrial-family { display: grid; grid-template-columns: 1fr 1fr; min-height: 530px; margin-bottom: 26px; background: white; border: 1px solid var(--line); }
.industrial-family:nth-child(even) .industrial-family-image { order: 2; }
.industrial-family-image { min-height: 530px; overflow: hidden; background: #dfe2df; }
.industrial-family-image img { width: 100%; height: 100%; object-fit: cover; }
.industrial-family:nth-child(2) .industrial-family-image { display: grid; place-items: center; background: #252c2e; }
.industrial-family:nth-child(2) .industrial-family-image img { width: min(70%, 340px); height: auto; object-fit: contain; }
.industrial-family:nth-child(3) .industrial-family-image img { object-position: center; }
.industrial-family-copy { padding: clamp(36px, 5vw, 74px); display: flex; flex-direction: column; align-items: flex-start; }
.industrial-family-kicker { display: flex; align-items: center; gap: 18px; color: var(--orange-dark); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; }
.industrial-family-kicker span:first-child { color: var(--ink); font-size: 28px; letter-spacing: -.06em; }
.industrial-family h3 { margin: 36px 0 17px; font-size: clamp(35px, 4vw, 58px); line-height: 1; letter-spacing: -.055em; }
.industrial-family-copy > p { margin: 0; font-size: 16px; line-height: 1.65; color: var(--ink-soft); }
.industrial-family ul { margin: 24px 0 32px; padding: 0; list-style: none; }
.industrial-family li { padding: 8px 0 8px 20px; position: relative; font-size: 13px; font-weight: 700; }
.industrial-family li::before { content: ''; position: absolute; left: 0; top: 14px; width: 7px; height: 7px; background: var(--orange); }
.industrial-family-copy > a { margin-top: auto; padding-bottom: 7px; border-bottom: 2px solid var(--orange); font-size: 14px; font-weight: 800; }
.industrial-family-copy > a span { margin-left: 8px; color: var(--orange); }
.industrial-cta { background: var(--ink); color: white; padding: 84px 0; }
.industrial-cta .section-shell { display: flex; justify-content: space-between; align-items: end; gap: 50px; }
.industrial-cta h2 { max-width: 650px; margin: 14px 0; font-size: clamp(42px, 5vw, 68px); line-height: 1.05; letter-spacing: -.055em; }
.industrial-cta p:not(.eyebrow) { max-width: 620px; color: var(--dark-muted); line-height: 1.6; }
.industrial-cta-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 22px; flex-shrink: 0; }
.industrial-cta-actions > a:last-child { border-bottom: 1px solid currentColor; padding-bottom: 6px; font-size: 14px; font-weight: 800; }
.industrial-page footer { padding: 34px 0; }
.industrial-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 900px) {
  .industrial-page .comparison-header nav { gap: 12px; }
  .industrial-intro { grid-template-columns: 1fr; gap: 16px; }
  .industrial-family { grid-template-columns: 1fr; }
  .industrial-family:nth-child(even) .industrial-family-image { order: 0; }
  .industrial-family-image { min-height: 390px; height: 390px; }
  .industrial-cta .section-shell { display: block; }
  .industrial-cta-actions { margin-top: 30px; }
}
@media (max-width: 600px) {
  .industrial-page .comparison-header nav a:nth-child(n+3) { display: none; }
  .industrial-hero { min-height: 650px; align-items: end; }
  .industrial-hero::before { background: linear-gradient(0deg, rgba(16,21,24,.98) 0%, rgba(16,21,24,.75) 65%, rgba(16,21,24,.3) 100%); }
  .industrial-hero-photo { background-position: 55% top; }
  .industrial-hero-inner { padding: 70px 0; }
  .industrial-hero h1 { font-size: clamp(48px, 11vw, 65px); }
  .industrial-proof .section-shell { flex-direction: column; gap: 10px; }
  .industrial-intro { padding: 75px 0 35px; }
  .industrial-families { padding-bottom: 75px; }
  .industrial-family-image { min-height: 280px; height: 280px; }
  .industrial-family-copy { padding: 34px 26px; }
  .industrial-family h3 { margin-top: 28px; }
}


/* Projects and case studies */
.projects-page { background: var(--paper); }
.projects-hero { position: relative; isolation: isolate; background: var(--ink); color: var(--white); overflow: hidden; }
.projects-hero::before { content: ''; position: absolute; inset: 0; z-index: -2; background: url('images/split-titan-installation.jpg') center 43% / cover no-repeat; opacity: .54; }
.projects-hero::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(16,21,24,.98), rgba(16,21,24,.86) 47%, rgba(16,21,24,.22)); }
.projects-hero .section-shell { padding: 98px 0 112px; }
.projects-hero h1 { max-width: 810px; margin: 24px 0; font-size: clamp(52px, 7.4vw, 96px); line-height: .99; letter-spacing: -.065em; }
.projects-hero h1 em { color: var(--green); font-style: normal; }
.projects-hero .section-shell > p:not(.eyebrow) { max-width: 660px; color: #e0e5e4; line-height: 1.65; font-size: 18px; }
.projects-hero-links { display: flex; gap: 28px; align-items: center; margin-top: 30px; flex-wrap: wrap; }
.projects-hero-links > a:last-child { border-bottom: 1px solid currentColor; padding-bottom: 5px; font-size: 14px; font-weight: 800; }
.projects-cases { padding: 110px 0 94px; }
.projects-section-head { max-width: 760px; margin-bottom: 38px; }
.projects-section-head h2 { margin: 14px 0; font-size: clamp(44px, 5.5vw, 70px); line-height: 1.05; letter-spacing: -.055em; }
.projects-section-head > p:last-child { color: var(--muted); line-height: 1.6; font-size: 17px; }
.projects-case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.projects-case-grid article { background: var(--white); border: 1px solid var(--line); overflow: hidden; }
.projects-case-grid article > img { width: 100%; height: 330px; object-fit: cover; }
.projects-case-grid article > div { display: flex; flex-direction: column; align-items: flex-start; padding: 38px; min-height: 355px; }
.projects-case-grid article span:first-child { color: var(--orange-dark); text-transform: uppercase; font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.projects-case-grid h3 { margin: 12px 0; font-size: clamp(29px, 3vw, 40px); line-height: 1.1; letter-spacing: -.04em; }
.projects-case-grid p { margin: 0 0 18px; color: var(--ink-soft); font-size: 16px; line-height: 1.6; }
.projects-case-grid small { margin-bottom: 28px; color: var(--muted); font-size: 13px; }
.projects-case-grid article a { margin-top: auto; padding-bottom: 6px; border-bottom: 2px solid var(--orange); font-weight: 800; font-size: 14px; }
.projects-updates { margin-top: 28px; color: var(--muted); font-size: 15px; }
.projects-updates a { border-bottom: 1px solid var(--orange); color: var(--ink); font-weight: 700; }
.projects-gallery { background: #e8ebe8; padding: 95px 0 125px; }
.projects-jump { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 42px; }
.projects-jump a { background: var(--white); border: 1px solid var(--line); padding: 12px 16px; font-size: 13px; font-weight: 800; }
.projects-jump a:hover { background: var(--ink); color: var(--white); }
.projects-group { scroll-margin-top: 105px; padding: 68px 0 55px; border-top: 1px solid #b9bfbb; }
.projects-group-intro { display: grid; grid-template-columns: 95px minmax(0, 1fr); gap: 28px; max-width: 970px; margin-bottom: 36px; }
.projects-group-intro > span { font-size: 50px; font-weight: 800; letter-spacing: -.08em; color: var(--orange); }
.projects-group-intro h3 { margin: 0 0 13px; font-size: clamp(36px, 4.5vw, 58px); letter-spacing: -.055em; line-height: 1.05; }
.projects-group-intro p { margin: 0; font-size: 17px; line-height: 1.65; color: var(--ink-soft); }
.projects-photo-set { margin: 0 0 45px 123px; }
.projects-set-copy { margin-bottom: 16px; max-width: 750px; }
.projects-set-copy h4 { margin: 0 0 8px; font-size: 21px; letter-spacing: -.03em; }
.projects-set-copy p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.6; }
.projects-photo-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.projects-photo-grid a { display: block; min-width: 0; aspect-ratio: 4/3; background: #d0d4d1; overflow: hidden; }
.projects-photo-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s ease; }
.projects-photo-grid a:hover img { transform: scale(1.045); }
.projects-photo-grid a:focus-visible { outline-offset: 2px; }
.projects-page footer { padding: 34px 0; }
.projects-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 900px) {
  .projects-page .comparison-header nav { gap: 12px; }
  .projects-case-grid { grid-template-columns: 1fr; }
  .projects-case-grid article { display: grid; grid-template-columns: 45% 55%; }
  .projects-case-grid article > img { height: 100%; }
  .projects-photo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 650px) {
  .projects-page .comparison-header nav a:nth-child(n+3) { display: none; }
  .projects-hero .section-shell { padding: 80px 0 90px; }
  .projects-hero h1 { font-size: clamp(48px, 11vw, 66px); }
  .projects-cases { padding: 75px 0; }
  .projects-case-grid article { display: block; }
  .projects-case-grid article > img { height: 240px; }
  .projects-case-grid article > div { padding: 28px; min-height: 0; }
  .projects-gallery { padding: 75px 0; }
  .projects-group { padding: 52px 0 28px; }
  .projects-group-intro { grid-template-columns: 1fr; gap: 10px; }
  .projects-group-intro > span { font-size: 32px; }
  .projects-photo-set { margin-left: 0; }
  .projects-photo-grid { gap: 7px; }
}

/* Documentation directory */
.documentation-page { background: var(--paper); }
.documentation-hero { position: relative; isolation: isolate; overflow: hidden; background: var(--ink); color: var(--white); }
.documentation-hero::before { content: ''; position: absolute; inset: 0; z-index: -2; background: url('images/steam-boiler-economizers-installation.png') center 44% / cover no-repeat; opacity: .38; }
.documentation-hero::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(16,21,24,.99), rgba(16,21,24,.86) 52%, rgba(16,21,24,.25)); }
.documentation-hero .section-shell { padding: 108px 0 118px; }
.documentation-hero h1 { max-width: 790px; margin: 24px 0; font-size: clamp(50px, 7vw, 90px); line-height: 1; letter-spacing: -.065em; }
.documentation-hero .section-shell > p:not(.eyebrow) { max-width: 640px; color: #e0e5e4; font-size: 18px; line-height: 1.65; margin-bottom: 30px; }
.documentation-resources { padding: 100px 0 125px; }
.documentation-heading { margin-bottom: 36px; }
.documentation-heading h2 { margin: 14px 0; font-size: clamp(43px, 5vw, 66px); letter-spacing: -.055em; line-height: 1.08; }
.documentation-heading > p:last-child { max-width: 680px; color: var(--muted); font-size: 17px; line-height: 1.6; }
.documentation-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.documentation-card { min-height: 306px; display: flex; flex-direction: column; justify-content: space-between; padding: 28px; border: 1px solid var(--line); background: white; transition: border-color .2s, transform .2s; }
.documentation-card:hover { border-color: var(--orange); transform: translateY(-3px); }
.documentation-card-top { display: flex; justify-content: space-between; align-items: start; gap: 12px; }
.documentation-card-top span:first-child { color: var(--orange); font-size: 30px; font-weight: 800; letter-spacing: -.07em; }
.documentation-card-top span:last-child { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .09em; font-weight: 800; text-align: right; }
.documentation-card h3 { margin: 15px 0 9px; font-size: clamp(24px, 2.7vw, 32px); line-height: 1.12; letter-spacing: -.04em; }
.documentation-card p { margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.55; }
.documentation-card-link { display: inline-block; align-self: flex-start; margin-top: 24px; padding-bottom: 5px; border-bottom: 2px solid var(--orange); font-size: 14px; font-weight: 800; }
.documentation-card-link span { color: var(--orange); margin-left: 5px; }
.documentation-page footer { padding: 34px 0; }
.documentation-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 900px) { .documentation-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .documentation-page .comparison-header nav { gap: 12px; } }
@media (max-width: 650px) { .documentation-page .comparison-header nav a:nth-child(n+3) { display: none; } .documentation-hero .section-shell { padding: 75px 0 85px; } .documentation-hero h1 { font-size: clamp(48px, 11vw, 66px); } .documentation-resources { padding: 75px 0; } .documentation-grid { grid-template-columns: 1fr; } .documentation-card { min-height: 265px; } }

/* Tutorials landing page */
.tutorials-page { background: var(--paper); }
.tutorials-hero { position: relative; isolation: isolate; overflow: hidden; background: var(--ink); color: var(--white); }
.tutorials-hero::before { content: ''; position: absolute; inset: 0; z-index: -2; background: url('images/steam-boiler-economizers-installation.png') center 35% / cover no-repeat; opacity: .4; }
.tutorials-hero::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(16,21,24,.99), rgba(16,21,24,.9) 50%, rgba(16,21,24,.22)); }
.tutorials-hero .section-shell { padding: 105px 0 115px; }
.tutorials-hero h1 { max-width: 810px; margin: 24px 0; font-size: clamp(50px, 7vw, 90px); line-height: 1; letter-spacing: -.065em; }
.tutorials-hero h1 em { color: var(--green); font-style: normal; }
.tutorials-hero .section-shell > p:not(.eyebrow) { max-width: 660px; color: #e0e5e4; font-size: 18px; line-height: 1.65; margin-bottom: 30px; }
.tutorials-content { padding: 100px 0 120px; }
.tutorials-heading h2 { margin: 14px 0 38px; font-size: clamp(44px, 5.5vw, 70px); line-height: 1.05; letter-spacing: -.055em; }
.tutorials-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.tutorials-card { min-height: 490px; display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; padding: clamp(32px, 4vw, 55px); border: 1px solid var(--line); background: var(--white); }
.tutorials-number { color: var(--orange-dark); text-transform: uppercase; font-size: 13px; font-weight: 800; letter-spacing: .11em; }
.tutorials-card h3 { max-width: 450px; margin: 28px 0 14px; font-size: clamp(34px, 3.7vw, 52px); line-height: 1.05; letter-spacing: -.055em; }
.tutorials-card p { max-width: 450px; color: var(--ink-soft); font-size: 16px; line-height: 1.65; }
.tutorials-card ul { list-style: none; padding: 0; margin: 21px 0 30px; }
.tutorials-card li { position: relative; padding: 7px 0 7px 19px; font-size: 14px; font-weight: 700; }
.tutorials-card li::before { content: ''; position: absolute; left: 0; top: 14px; width: 7px; height: 7px; background: var(--orange); }
.tutorials-card > a { padding-bottom: 6px; border-bottom: 2px solid var(--orange); font-size: 14px; font-weight: 800; }
.tutorials-card > a span { margin-left: 7px; color: var(--orange); }
.tutorials-back { display: inline-block; margin-top: 34px; border-bottom: 1px solid var(--orange); padding-bottom: 6px; font-size: 14px; font-weight: 800; }
.tutorials-page footer { padding: 34px 0; }
.tutorials-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 800px) { .tutorials-grid { grid-template-columns: 1fr; } .tutorials-card { min-height: 420px; } }
@media (max-width: 600px) { .tutorials-page .comparison-header nav a:nth-child(n+3) { display: none; } .tutorials-hero .section-shell { padding: 75px 0 85px; } .tutorials-hero h1 { font-size: clamp(48px, 11vw, 66px); } .tutorials-content { padding: 75px 0; } .tutorials-card { padding: 30px 26px; } }

/* Economizer tutorial */
.economizer-guide { background: var(--paper); }
.economizer-guide-hero { background: var(--ink); color: white; overflow: hidden; }
.economizer-guide-hero .section-shell { display: grid; grid-template-columns: minmax(0, 1.13fr) minmax(0, .87fr); gap: 55px; align-items: center; padding: 84px 0; }
.economizer-guide-hero h1 { margin: 20px 0; font-size: clamp(54px, 6.4vw, 86px); line-height: 1; letter-spacing: -.065em; }
.economizer-guide-hero h1 em { color: var(--green); font-style: normal; }
.economizer-guide-hero p:not(.eyebrow) { max-width: 660px; color: #e0e5e4; font-size: 18px; line-height: 1.65; margin-bottom: 30px; }
.economizer-guide-hero img { width: 100%; height: 540px; object-fit: cover; object-position: center; }
.economizer-guide-body { display: grid; grid-template-columns: 240px minmax(0, 760px); gap: clamp(45px, 8vw, 120px); align-items: start; padding-top: 90px; padding-bottom: 115px; }
.economizer-guide-nav { position: sticky; top: 112px; }
.economizer-guide-nav > p { color: var(--orange-dark); margin: 0 0 19px; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; }
.economizer-guide-nav nav { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.economizer-guide-nav nav a { padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 14px; font-weight: 700; line-height: 1.3; }
.economizer-guide-nav nav a:hover { color: var(--orange-dark); }
.economizer-guide-return { display: inline-block; padding-bottom: 6px; border-bottom: 1px solid var(--orange); margin-top: 30px; font-size: 13px; font-weight: 800; }
.economizer-guide-article section { scroll-margin-top: 110px; padding: 0 0 64px; margin-bottom: 68px; border-bottom: 1px solid var(--line); }
.economizer-guide-article section:last-child { border: 0; margin: 0; padding: 0; }
.economizer-guide-article h2 { margin: 15px 0 23px; font-size: clamp(36px, 4.3vw, 56px); line-height: 1.08; letter-spacing: -.055em; }
.economizer-guide-article p:not(.eyebrow) { margin: 0 0 19px; color: var(--ink-soft); font-size: 17px; line-height: 1.75; }
.economizer-guide-article p a { border-bottom: 1px solid var(--orange); color: var(--ink); font-weight: 700; }
.economizer-guide-callout { display: flex; flex-direction: column; gap: 10px; padding: 26px 30px; border-left: 4px solid var(--orange); margin: 29px 0; background: white; }
.economizer-guide-callout strong { font-size: 17px; letter-spacing: -.02em; }
.economizer-guide-callout span { color: var(--ink-soft); font-size: 15px; line-height: 1.65; }
.economizer-guide-formula { display: flex; flex-direction: column; gap: 14px; padding: 28px; margin: 29px 0; background: #1f292d; color: white; }
.economizer-guide-formula > span { color: var(--green); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.economizer-guide-formula strong { font-size: 16px; line-height: 1.5; }
.economizer-guide-formula small { color: #b9c2c4; font-size: 13px; line-height: 1.6; }
.economizer-guide-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 25px; margin-top: 28px; }
.economizer-guide-actions > a:last-child { font-size: 14px; font-weight: 800; padding-bottom: 5px; border-bottom: 1px solid var(--orange); }
.economizer-guide footer { padding: 34px 0; border-top: 1px solid var(--line); }
.economizer-guide footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 900px) { .economizer-guide-hero .section-shell { grid-template-columns: 1fr; gap: 35px; padding: 74px 0; } .economizer-guide-hero img { height: 340px; } .economizer-guide-body { grid-template-columns: 1fr; gap: 45px; padding-top: 65px; } .economizer-guide-nav { position: static; } .economizer-guide-nav nav { display: grid; grid-template-columns: repeat(2, 1fr); column-gap: 20px; } }
@media (max-width: 600px) { .economizer-guide .comparison-header nav a:nth-child(n+3) { display: none; } .economizer-guide-hero h1 { font-size: clamp(48px, 11vw, 66px); } .economizer-guide-hero img { height: 250px; } .economizer-guide-nav nav { grid-template-columns: 1fr; } .economizer-guide-article section { padding-bottom: 50px; margin-bottom: 50px; } .economizer-guide-formula { padding: 23px; } }

/* Online selection tutorial */
.selection-guide .economizer-guide-hero img { object-position: center 27%; }
.selection-checklist { background: white; border: 1px solid var(--line); padding: 27px 30px; margin: 28px 0; }
.selection-checklist strong { display: block; margin-bottom: 13px; font-size: 17px; letter-spacing: -.02em; }
.selection-checklist ul { margin: 0; padding-left: 20px; color: var(--ink-soft); font-size: 16px; line-height: 1.8; }
.selection-fields { margin: 27px 0 12px; border-top: 1px solid var(--line); }
.selection-fields > div { display: grid; grid-template-columns: 185px minmax(0, 1fr); gap: 25px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.selection-fields span { color: var(--ink); font-size: 16px; font-weight: 800; line-height: 1.45; }
.selection-guide .economizer-guide-article .selection-fields p { margin: 0; font-size: 16px; line-height: 1.65; }
.selection-guide-related { margin-top: 28px !important; }
@media (max-width: 600px) { .selection-fields > div { display: block; } .selection-fields span { display: block; margin-bottom: 9px; } }

/* Standard industrial economizer family */
.standard-models-page { background: var(--paper); }
.standard-models-hero { color: white; background: var(--ink); overflow: hidden; }
.standard-models-hero-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 55px; align-items: center; padding: 82px 0; }
.standard-models-hero h1 { margin: 22px 0; font-size: clamp(52px, 6.5vw, 87px); letter-spacing: -.065em; line-height: 1; }
.standard-models-hero h1 em { color: var(--green); font-style: normal; }
.standard-models-hero-grid > div > p:not(.eyebrow) { max-width: 650px; color: #d8e0e1; font-size: 18px; line-height: 1.65; margin-bottom: 30px; }
.standard-models-hero figure { margin: 0; }
.standard-models-hero figure img { width: 100%; height: 560px; object-fit: cover; object-position: 53% 35%; }
.standard-models-hero figcaption { color: #aeb7b9; font-size: 12px; padding-top: 12px; }
.standard-models-bar { background: #e7ebe2; }
.standard-models-bar .section-shell { display: flex; justify-content: space-between; gap: 20px; padding: 25px 0; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .09em; }
.standard-models-range { padding: 105px 0 112px; }
.standard-models-heading { max-width: 790px; margin-bottom: 44px; }
.standard-models-heading h2, .standard-models-service h2, .standard-models-design h2, .standard-models-downloads h2 { font-size: clamp(43px, 5vw, 70px); line-height: 1.06; letter-spacing: -.055em; margin: 15px 0 19px; }
.standard-models-heading > p:last-child, .standard-models-design p:not(.eyebrow) { color: var(--ink-soft); font-size: 17px; line-height: 1.7; }
.standard-models-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.standard-model-card { grid-column: span 2; min-height: 335px; display: flex; flex-direction: column; justify-content: space-between; background: white; border: 1px solid var(--line); padding: 27px; }
.standard-model-card:nth-child(n+4) { grid-column: span 3; }
.standard-model-card-top { display: flex; justify-content: space-between; gap: 12px; color: var(--orange-dark); text-transform: uppercase; font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.standard-model-card-top span:first-child { color: var(--ink); font-size: 27px; letter-spacing: -.06em; }
.standard-model-card h3 { font-size: clamp(33px, 3.3vw, 48px); letter-spacing: -.055em; margin: 6px 0 13px; line-height: 1; }
.standard-model-card div:last-child > p { color: var(--orange-dark); font-size: 12px; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; margin: 0; }
.standard-model-card div:last-child > span { color: var(--ink-soft); line-height: 1.6; font-size: 15px; }
.standard-model-new { background: var(--ink); color: white; border-color: var(--ink); }
.standard-model-new .standard-model-card-top span:first-child, .standard-model-new div:last-child > span { color: #d7dedf; }
.standard-model-new .standard-model-card-top, .standard-model-new div:last-child > p { color: var(--green); }
.standard-models-note { color: var(--muted); font-size: 13px; margin-top: 21px; }
.standard-models-service { background: #202a2e; color: white; padding: 105px 0 112px; }
.standard-models-service-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 65px; }
.standard-models-service-grid > div:first-child > p:last-child { color: #c8d0d1; line-height: 1.7; font-size: 17px; }
.standard-models-feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.standard-models-feature-grid article { padding: 24px; background: #303c40; }
.standard-models-feature-grid article > span { color: var(--green); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.standard-models-feature-grid h3 { font-size: 23px; letter-spacing: -.035em; line-height: 1.15; margin: 21px 0 11px; }
.standard-models-feature-grid p { color: #c8d0d1; font-size: 14px; line-height: 1.6; margin: 0; }
.standard-models-design { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; padding: 110px 0; }
.standard-models-design-image img { width: 100%; height: 595px; object-fit: cover; }
.standard-models-downloads { background: #e7ebe8; padding: 95px 0 115px; }
.standard-models-downloads-head { display: flex; justify-content: space-between; align-items: end; gap: 60px; margin-bottom: 35px; }
.standard-models-downloads-head > div { max-width: 650px; }
.standard-models-downloads-head > p { max-width: 340px; color: var(--muted); line-height: 1.6; }
.standard-models-download-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.standard-models-download-grid a { background: white; padding: 25px; min-height: 175px; display: flex; flex-direction: column; border: 1px solid var(--line); }
.standard-models-download-grid a > span:first-child { color: var(--orange-dark); font-size: 12px; font-weight: 800; }
.standard-models-download-grid strong { font-size: 20px; line-height: 1.15; margin-top: 14px; }
.standard-models-download-grid a > span:last-child { margin-top: auto; align-self: end; color: var(--orange); font-size: 21px; }
.standard-models-page footer { padding: 34px 0; }
.standard-models-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 950px) { .standard-models-hero-grid, .standard-models-service-grid, .standard-models-design { grid-template-columns: 1fr; } .standard-models-hero figure img { height: 440px; } .standard-models-design-image img { height: 440px; } .standard-models-download-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 650px) { .standard-models-page .comparison-header nav a:nth-child(n+3) { display: none; } .standard-models-hero-grid { padding: 74px 0; gap: 35px; } .standard-models-hero h1 { font-size: clamp(48px, 11vw, 66px); } .standard-models-hero figure img { height: 300px; } .standard-models-bar .section-shell { flex-direction: column; gap: 10px; } .standard-models-range, .standard-models-service, .standard-models-design, .standard-models-downloads { padding-top: 75px; padding-bottom: 80px; } .standard-model-card, .standard-model-card:nth-child(n+4) { grid-column: span 6; min-height: 270px; } .standard-models-feature-grid { grid-template-columns: 1fr; } .standard-models-downloads-head { display: block; } .standard-models-download-grid { grid-template-columns: 1fr; } }

/* Rainmaker commercial products */
.commercial-page { background: var(--paper); }
.commercial-hero { overflow: hidden; background: var(--ink); color: white; }
.commercial-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 65px; padding: 78px 0; }
.commercial-hero h1 { max-width: 730px; margin: 22px 0; font-size: clamp(52px, 6.3vw, 86px); line-height: 1; letter-spacing: -.065em; }
.commercial-hero h1 em { font-style: normal; color: var(--green); }
.commercial-hero-copy > p:not(.eyebrow) { max-width: 590px; color: #d7dfe0; line-height: 1.65; font-size: 18px; }
.commercial-hero-actions { display: flex; flex-wrap: wrap; gap: 27px; align-items: center; margin-top: 30px; }
.commercial-hero-actions > a:last-child { font-size: 14px; font-weight: 800; border-bottom: 1px solid currentColor; padding-bottom: 5px; }
.commercial-hero figure { margin: 0; }
.commercial-hero figure img { width: 100%; height: 570px; object-fit: cover; object-position: center 55%; }
.commercial-hero figcaption { padding-top: 12px; color: #adb8bb; font-size: 12px; }
.commercial-proof { background: #e7ebe2; }
.commercial-proof .section-shell { display: flex; justify-content: space-between; gap: 25px; padding: 25px 0; text-transform: uppercase; font-size: 12px; font-weight: 800; letter-spacing: .09em; }
.commercial-intro { display: grid; grid-template-columns: 1fr 2fr; gap: 55px; padding: 105px 0 58px; }
.commercial-intro h2, .commercial-stages h2, .commercial-engineering h2, .commercial-next h2 { margin: 13px 0 23px; font-size: clamp(43px, 5vw, 70px); line-height: 1.06; letter-spacing: -.055em; }
.commercial-intro div > p { max-width: 770px; color: var(--ink-soft); font-size: 17px; line-height: 1.7; }
.commercial-benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding-bottom: 112px; }
.commercial-benefits article { min-height: 350px; padding: 34px; border: 1px solid var(--line); background: white; }
.commercial-benefits article > span { color: var(--orange); font-weight: 800; font-size: 28px; letter-spacing: -.06em; }
.commercial-benefits h3 { margin: 61px 0 16px; font-size: clamp(27px, 3vw, 39px); line-height: 1.1; letter-spacing: -.045em; }
.commercial-benefits p, .commercial-engineering p { color: var(--ink-soft); line-height: 1.65; font-size: 15px; }
.commercial-stages { padding: 110px 0; background: #202a2e; color: white; }
.commercial-stages-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.commercial-stages-grid > div:first-child > p:not(.eyebrow) { color: #cbd3d4; font-size: 17px; line-height: 1.7; }
.commercial-stages-grid > div:first-child > a { display: inline-block; border-bottom: 2px solid var(--orange); padding-bottom: 5px; font-weight: 800; font-size: 14px; margin-top: 20px; }
.commercial-stage-graphic { border: 1px solid #5a686a; padding: 22px 35px; }
.commercial-stage-graphic > div { display: grid; grid-template-columns: 48px 1fr; gap: 4px 24px; padding: 30px 0; border-bottom: 1px solid #4f5c5f; }
.commercial-stage-graphic > div:last-child { border: 0; }
.commercial-stage-graphic span { grid-row: span 2; color: var(--green); font-size: 27px; font-weight: 800; letter-spacing: -.06em; }
.commercial-stage-graphic strong { font-size: 25px; letter-spacing: -.04em; }
.commercial-stage-graphic small { color: #b9c4c6; font-size: 14px; }
.commercial-engineering { padding: 108px 0 120px; }
.commercial-engineering-head { max-width: 790px; margin-bottom: 40px; }
.commercial-engineering-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.commercial-engineering-grid article { padding: 37px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.commercial-engineering-grid h3 { margin: 0 0 13px; font-size: 27px; letter-spacing: -.04em; }
.commercial-next { background: var(--ink); color: white; padding: 85px 0; }
.commercial-next .section-shell { display: flex; justify-content: space-between; align-items: end; gap: 50px; }
.commercial-next h2 { max-width: 690px; }
.commercial-next p:not(.eyebrow) { color: #c2ced0; max-width: 670px; line-height: 1.65; }
.commercial-next .section-shell > div:last-child { display: flex; align-items: flex-start; flex-direction: column; gap: 23px; flex-shrink: 0; }
.commercial-next .section-shell > div:last-child > a:last-child { border-bottom: 1px solid white; padding-bottom: 5px; font-size: 14px; font-weight: 800; }
.commercial-page footer { padding: 34px 0; }
.commercial-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 950px) { .commercial-hero-grid, .commercial-intro, .commercial-stages-grid { grid-template-columns: 1fr; gap: 35px; } .commercial-hero figure img { height: 460px; } .commercial-benefits { grid-template-columns: 1fr; } .commercial-benefits article { min-height: 240px; } .commercial-benefits h3 { margin-top: 38px; } .commercial-next .section-shell { display: block; } .commercial-next .section-shell > div:last-child { margin-top: 30px; } }
@media (max-width: 650px) { .commercial-page .comparison-header nav a:nth-child(n+3) { display: none; } .commercial-hero-grid { padding: 74px 0; } .commercial-hero h1 { font-size: clamp(48px, 11vw, 66px); } .commercial-hero figure img { height: 370px; } .commercial-proof .section-shell { flex-direction: column; gap: 11px; } .commercial-intro, .commercial-stages, .commercial-engineering { padding-top: 75px; padding-bottom: 80px; } .commercial-benefits { padding-bottom: 80px; } .commercial-engineering-grid { grid-template-columns: 1fr; } .commercial-engineering-grid article { padding: 30px; } .commercial-stage-graphic { padding: 8px 22px; } }

/* Economizer selection form */
.selector-page { background: var(--paper); }
.selector-hero { background: var(--ink); color: white; }
.selector-hero .section-shell { display: grid; grid-template-columns: 1.2fr .8fr; gap: 65px; align-items: center; padding: 64px 0; }
.selector-hero h1 { margin: 16px 0 20px; max-width: 790px; font-size: clamp(46px, 5.8vw, 78px); line-height: 1; letter-spacing: -.065em; }
.selector-hero h1 em { color: var(--green); font-style: normal; }
.selector-hero .section-shell > div > p:not(.eyebrow) { max-width: 650px; color: #d5dfe0; line-height: 1.65; font-size: 17px; }
.selector-hero img { width: 100%; height: 400px; object-fit: cover; object-position: center 32%; }
.selector-hero-links { display: flex; flex-wrap: wrap; gap: 27px; align-items: center; margin-top: 26px; }
.selector-hero-links > a:last-child { border-bottom: 1px solid currentColor; padding-bottom: 5px; font-size: 14px; font-weight: 800; }
.selector-prep { background: #e7ebe2; }
.selector-prep .section-shell { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 15px 25px; padding: 21px 0; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }
.selector-prep strong { color: var(--orange-dark); }
.selector-layout { display: grid; grid-template-columns: 210px minmax(0, 1fr); align-items: start; gap: 65px; padding-top: 82px; padding-bottom: 110px; }
.selector-sidebar { position: sticky; top: 100px; display: flex; flex-direction: column; font-size: 14px; }
.selector-sidebar > p { margin: 0 0 15px; color: var(--orange-dark); font-weight: 800; font-size: 12px; text-transform: uppercase; letter-spacing: .12em; }
.selector-sidebar > a { padding: 13px 0; border-top: 1px solid var(--line); font-weight: 700; color: var(--ink-soft); }
.selector-sidebar > a:hover { color: var(--orange-dark); }
.selector-sidebar > div { display: flex; flex-direction: column; gap: 12px; margin-top: 35px; padding: 20px; background: #e8ebe8; }
.selector-sidebar > div span { color: var(--ink-soft); font-size: 13px; line-height: 1.6; }
.selector-sidebar > div a { align-self: flex-start; border-bottom: 1px solid var(--orange); font-weight: 800; font-size: 12px; }
.selector-form { min-width: 0; }
.selector-form-intro { margin-bottom: 35px; }
.selector-form-intro h2 { margin: 12px 0; font-size: clamp(42px, 4.7vw, 63px); line-height: 1; letter-spacing: -.06em; }
.selector-form-intro > p:last-child { color: var(--ink-soft); font-size: 16px; line-height: 1.6; }
.selector-group { padding: 38px 0 46px; border-top: 1px solid var(--line); scroll-margin-top: 100px; }
.selector-group-title { display: flex; gap: 18px; align-items: baseline; }
.selector-group-title > span { color: var(--orange); font-size: 19px; font-weight: 800; }
.selector-group h2 { margin: 0; font-size: clamp(30px, 3.2vw, 42px); letter-spacing: -.045em; }
.selector-group-help { max-width: 710px; margin: 12px 0 28px; color: var(--muted); font-size: 15px; line-height: 1.6; }
.selector-fields { display: grid; gap: 20px; margin: 21px 0; }
.selector-fields.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.selector-fields.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.selector-field { display: flex; flex-direction: column; min-width: 0; gap: 8px; margin: 17px 0; }
.selector-field > span { color: var(--ink); font-size: 14px; font-weight: 800; }
.selector-field input[type=text], .selector-field select, .selector-load-row input, .selector-load-row select { width: 100%; height: 50px; padding: 0 14px; border: 1px solid #bfc6c4; border-radius: 0; background: white; color: var(--ink); font: inherit; font-size: 16px; }
.selector-field small { color: var(--muted); font-size: 12px; line-height: 1.45; }
.selector-field select { padding-right: 28px; }
.selector-field select:focus, .selector-field input:focus, .selector-load-row input:focus, .selector-load-row select:focus { outline: 2px solid var(--orange); outline-offset: 2px; }
.selector-inline-help { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.selector-choices { display: grid; gap: 7px; margin: 4px 0; }
.selector-choices label, .selector-check { display: flex; align-items: flex-start; gap: 11px; padding: 12px 14px; background: white; border: 1px solid var(--line); color: var(--ink-soft); line-height: 1.45; font-size: 14px; cursor: pointer; }
.selector-choices input, .selector-check input { margin: 3px 0 0; width: 16px; height: 16px; flex: 0 0 16px; accent-color: var(--orange-dark); }
.selector-check { margin: 13px 0; }
.selector-choices label:has(input:checked) { border-color: var(--orange); background: #fff9f5; color: var(--ink); }
.selector-load-table { margin: 24px 0 32px; border: 1px solid var(--line); }
.selector-load-head, .selector-load-row { display: grid; grid-template-columns: .7fr 1fr 1fr 1fr; gap: 12px; align-items: center; padding: 13px 18px; }
.selector-load-head { background: #e8ebe8; font-size: 12px; text-transform: uppercase; font-weight: 800; letter-spacing: .05em; }
.selector-load-row { border-top: 1px solid var(--line); background: white; }
.selector-load-row strong { font-size: 19px; }
.selector-load-row > div label { display: flex; align-items: center; gap: 5px; }
.selector-load-row > div input { max-width: 75px; }
.selector-mobile-label { display: none; }
.selector-submit { display: flex; align-items: center; gap: 23px; margin-top: 32px; }
.selector-submit button { cursor: pointer; flex-shrink: 0; border: 0; padding: 17px 22px; color: white; background: var(--orange); font-size: 14px; font-weight: 800; }
.selector-submit button:hover { background: var(--orange-dark); }
.selector-submit button span { margin-left: 12px; }
.selector-submit p { max-width: 390px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.selector-advanced-heading { padding: 45px 0 20px; border-top: 1px solid var(--line); }
.selector-advanced-heading h2 { margin: 13px 0; font-size: clamp(35px, 4vw, 52px); letter-spacing: -.05em; }
.selector-advanced-heading > p:last-child { color: var(--muted); line-height: 1.6; }
.selector-expand { border-top: 1px solid var(--line); scroll-margin-top: 110px; }
.selector-expand:last-of-type { border-bottom: 1px solid var(--line); }
.selector-expand > summary { display: flex; justify-content: space-between; align-items: center; gap: 18px; cursor: pointer; padding: 23px 38px 23px 0; position: relative; list-style: none; }
.selector-expand > summary::-webkit-details-marker { display: none; }
.selector-expand > summary::after { content: '+'; position: absolute; right: 2px; top: 18px; font-size: 28px; color: var(--orange-dark); }
.selector-expand[open] > summary::after { content: '−'; }
.selector-expand > summary > span { font-size: 19px; font-weight: 800; letter-spacing: -.02em; }
.selector-expand > summary > small { color: var(--muted); font-size: 13px; }
.selector-expand-body { padding: 6px 0 30px; }
.selector-expand-body > p { max-width: 700px; color: var(--ink-soft); line-height: 1.65; font-size: 15px; }
.selector-nested { margin: 17px 0; border: 1px solid var(--line); background: white; padding: 0 22px; }
.selector-nested summary { cursor: pointer; font-weight: 800; padding: 18px 0; }
.selector-nested > p { font-size: 14px; line-height: 1.6; color: var(--ink-soft); }
.selector-final { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding: 24px 0; }
.selector-final .selector-submit { margin: 0; }
.selector-final > button { border: 0; background: transparent; border-bottom: 1px solid var(--orange); cursor: pointer; padding: 5px 0; font-weight: 800; }
.selector-page footer { padding: 34px 0; border-top: 1px solid var(--line); }
.selector-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 1000px) { .selector-hero .section-shell { grid-template-columns: 1fr; gap: 30px; } .selector-hero img { height: 310px; } .selector-layout { grid-template-columns: 1fr; gap: 35px; } .selector-sidebar { position: static; display: none; } }
@media (max-width: 700px) { .selector-page .comparison-header nav a:nth-child(n+3) { display: none; } .selector-hero .section-shell { padding: 68px 0; } .selector-hero h1 { font-size: clamp(46px, 10vw, 63px); } .selector-prep .section-shell { display: grid; grid-template-columns: 1fr 1fr; } .selector-layout { padding-top: 60px; padding-bottom: 75px; } .selector-fields.two, .selector-fields.three { grid-template-columns: 1fr; gap: 3px; } .selector-load-head { display: none; } .selector-load-row { grid-template-columns: 1fr 1fr; gap: 15px; padding: 18px; } .selector-mobile-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; } .selector-load-row > div label { max-width: 150px; } .selector-submit, .selector-final { display: block; } .selector-submit p { margin-top: 13px; } .selector-final > button { margin-top: 25px; } .selector-expand > summary { display: block; } .selector-expand > summary > small { display: block; margin-top: 5px; } }

/* Rainmaker selector refinements */
.rainmaker-selector .selector-hero img { object-position: center 52%; }
.selector-match-panel, .selector-manual-panel { padding: 14px 24px; background: white; border: 1px solid var(--line); margin: 16px 0; }
.selector-manual-panel { background: #e9eceb; }
.rainmaker-selector .selector-nested { margin-top: 25px; }
.rainmaker-selector .selector-nested[open] { padding-bottom: 20px; }
@media (max-width: 700px) { .selector-match-panel, .selector-manual-panel { padding: 12px 18px; } }

/* Online proposal chooser */
/* Contact page */
/* Steam boiler representative directory */
.steam-reps-page { background: var(--paper); }
.steam-reps-hero { background: var(--ink); color: white; padding: 105px 0 115px; }
.steam-reps-hero h1 { max-width: 850px; margin: 16px 0 25px; font-size: clamp(55px, 7vw, 92px); line-height: 1; letter-spacing: -.065em; }
.steam-reps-hero h1 em { color: var(--green); font-style: normal; }
.steam-reps-hero p:not(.eyebrow) { max-width: 640px; color: #d5dfe0; line-height: 1.65; font-size: 18px; }
.steam-reps-content { padding-top: 100px; padding-bottom: 110px; }
.steam-reps-directory { padding-top: 85px; }
.steam-reps-directory-head { margin-bottom: 26px; }
.steam-reps-directory-head h2 { margin: 10px 0; font-size: clamp(38px, 4vw, 56px); letter-spacing: -.05em; }
.steam-reps-directory-head > p:last-child:not(.eyebrow) { color: var(--ink-soft); font-size: 16px; line-height: 1.6; }
.steam-reps-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 11px; }
.steam-reps-place { min-height: 114px; background: white; border: 1px solid var(--line); padding: 21px 24px; }
.steam-reps-place h3 { margin: 0; font-size: 19px; letter-spacing: -.02em; }
.steam-reps-slot { min-height: 32px; }
.steam-reps-empty { display: grid; grid-template-columns: 1.15fr .85fr; background: white; border: 1px solid var(--line); }
.steam-reps-empty > div { padding: clamp(32px, 5vw, 70px); }
.steam-reps-empty h2 { margin: 17px 0 20px; font-size: clamp(38px, 4.5vw, 61px); line-height: 1.08; letter-spacing: -.055em; }
.steam-reps-empty p:not(.eyebrow) { color: var(--ink-soft); font-size: 17px; line-height: 1.7; }
.steam-reps-contact { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; background: #e7ebe8; }
.steam-reps-contact > span { color: var(--orange-dark); text-transform: uppercase; font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.steam-reps-phone { display: block; margin: 27px 0 10px; font-size: clamp(27px, 3vw, 40px); letter-spacing: -.055em; font-weight: 800; }
.steam-reps-contact > a:not(.steam-reps-phone) { padding-bottom: 5px; border-bottom: 2px solid var(--orange); font-size: 16px; font-weight: 800; overflow-wrap: anywhere; }
.steam-reps-contact p { margin-top: 27px; }
.steam-reps-next { background: #252e31; color: white; padding: 80px 0; }
.steam-reps-next .section-shell { display: flex; justify-content: space-between; align-items: end; gap: 40px; }
.steam-reps-next h2 { margin: 13px 0 17px; font-size: clamp(38px, 4.5vw, 60px); line-height: 1.07; letter-spacing: -.055em; }
.steam-reps-next p:not(.eyebrow) { max-width: 600px; color: #d5dfe0; font-size: 17px; line-height: 1.6; }
.steam-reps-next .button { flex: 0 0 auto; }
.steam-reps-page footer { padding: 34px 0; }
.steam-reps-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media(max-width:850px) { .steam-reps-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media(max-width:700px) { .steam-reps-page .comparison-header nav a:nth-child(n+3) { display: none; } .steam-reps-hero { padding: 75px 0 85px; } .steam-reps-content { padding: 70px 0 80px; } .steam-reps-empty { grid-template-columns: 1fr; } .steam-reps-next .section-shell { display: block; } .steam-reps-next .button { margin-top: 18px; } }
@media(max-width:480px) { .steam-reps-grid { grid-template-columns: 1fr; } .steam-reps-place { min-height: 92px; } }

.contact-page { background: var(--paper); }
.contact-hero { background: var(--ink); color: white; overflow: hidden; }
.contact-hero-grid { min-height: 540px; display: grid; grid-template-columns: 1.06fr .94fr; align-items: stretch; gap: 60px; }
.contact-hero-grid > div:first-child { align-self: center; padding: 74px 0 84px; }
.contact-hero h1 { margin: 16px 0 25px; font-size: clamp(56px, 6.8vw, 92px); line-height: .99; letter-spacing: -.065em; }
.contact-hero h1 em { color: var(--green); font-style: normal; }
.contact-hero p:not(.eyebrow) { max-width: 560px; color: #d5dfe0; font-size: 18px; line-height: 1.65; margin: 0 0 30px; }
.contact-hero-image { min-height: 540px; overflow: hidden; }
.contact-hero-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.contact-direct { padding-top: 100px; padding-bottom: 110px; }
.contact-direct-heading { max-width: 720px; margin-bottom: 38px; }
.contact-direct h2, .contact-regions h2, .contact-start h2 { margin: 13px 0 17px; font-size: clamp(42px, 5vw, 68px); line-height: 1.06; letter-spacing: -.055em; }
.contact-direct-heading > p:last-child, .contact-regions-heading > p:last-child { color: var(--ink-soft); font-size: 17px; line-height: 1.65; }
.contact-facts { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 15px; }
.contact-facts > * { display: flex; flex-direction: column; align-items: flex-start; min-height: 220px; padding: 31px; background: white; border: 1px solid var(--line); }
.contact-facts span, .contact-rep-grid > a > span { font-size: 12px; text-transform: uppercase; color: var(--orange-dark); font-weight: 800; letter-spacing: .1em; }
.contact-facts strong { font-size: clamp(19px, 2vw, 27px); letter-spacing: -.04em; margin: 21px 0 9px; overflow-wrap: anywhere; }
.contact-facts small, .contact-facts address { font-size: 15px; line-height: 1.6; color: var(--ink-soft); font-style: normal; }
.contact-facts a:hover { border-color: var(--orange); }
.contact-regions { padding: 100px 0 110px; background: #e7ebe8; }
.contact-regions-heading { max-width: 740px; margin-bottom: 35px; }
.contact-rep-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.contact-rep-grid a { min-height: 265px; padding: 38px; background: white; display: flex; flex-direction: column; align-items: flex-start; border: 1px solid var(--line); }
.contact-rep-grid a:hover { border-color: var(--orange); }
.contact-rep-grid strong { margin: 27px 0; font-size: clamp(27px, 3vw, 39px); line-height: 1.13; letter-spacing: -.04em; }
.contact-rep-grid small { margin-top: auto; padding-bottom: 6px; border-bottom: 2px solid var(--orange); font-size: 14px; font-weight: 800; }
.contact-rep-grid small span { color: var(--orange); }
.contact-start { background: #252e31; color: white; padding: 78px 0; }
.contact-start .section-shell { display: flex; justify-content: space-between; align-items: end; gap: 50px; }
.contact-start p:not(.eyebrow) { color: #d5dfe0; font-size: 17px; line-height: 1.65; max-width: 620px; }
.contact-start .button { flex: 0 0 auto; }
.contact-page footer { padding: 34px 0; }
.contact-page footer .section-shell { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; font-size: 13px; }
@media(max-width:850px) { .contact-hero-grid { gap: 28px; } .contact-facts { grid-template-columns: 1fr; } .contact-facts > * { min-height: 160px; } }
@media(max-width:650px) { .contact-page .comparison-header nav a:nth-child(n+3) { display: none; } .contact-hero-grid { display: block; } .contact-hero-grid > div:first-child { padding: 68px 0; } .contact-hero-image { min-height: 240px; height: 260px; } .contact-direct,.contact-regions { padding-top: 75px; padding-bottom: 80px; } .contact-rep-grid { grid-template-columns: 1fr; } .contact-start .section-shell { display: block; } .contact-start .button { margin-top: 18px; } }

.proposals-page { background: var(--paper); }
.proposals-hero { background: var(--ink); color: white; padding: 94px 0 101px; }
.proposals-hero h1 { max-width: 950px; margin: 18px 0 22px; font-size: clamp(55px, 7vw, 95px); line-height: 1; letter-spacing: -.065em; }
.proposals-hero h1 em { font-style: normal; color: var(--green); }
.proposals-hero .section-shell > p:not(.eyebrow) { max-width: 680px; color: #d5dfe0; font-size: 18px; line-height: 1.65; margin-bottom: 28px; }
.proposals-proof { background: #e7ebe2; }
.proposals-proof .section-shell { display: flex; justify-content: space-between; gap: 24px; padding: 23px 0; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.proposals-choose { padding-top: 95px; padding-bottom: 112px; }
.proposals-heading { max-width: 750px; margin-bottom: 38px; }
.proposals-heading h2, .proposals-prepare h2, .proposals-help h2 { margin: 14px 0 19px; font-size: clamp(43px, 5vw, 70px); letter-spacing: -.055em; line-height: 1.06; }
.proposals-heading > p:last-child { color: var(--ink-soft); font-size: 17px; line-height: 1.65; }
.proposals-paths { display: grid; gap: 22px; }
.proposals-path { display: grid; grid-template-columns: .9fr 1.1fr; min-height: 460px; border: 1px solid var(--line); background: white; }
.proposals-path:nth-child(even) .proposals-path-image { order: 2; }
.proposals-path-image { height: 100%; min-height: 460px; background: #252e31; overflow: hidden; }
.proposals-path-image img { width: 100%; height: 100%; object-fit: cover; }
.proposals-path-02 .proposals-path-image img { object-position: center 53%; }
.proposals-path-03 .proposals-path-image { display: grid; place-items: center; }
.proposals-path-03 .proposals-path-image img { width: min(55%, 320px); height: auto; object-fit: contain; }
.proposals-path-content { padding: clamp(30px, 4.5vw, 62px); display: flex; flex-direction: column; align-items: flex-start; }
.proposals-path-kicker { display: flex; gap: 17px; align-items: center; color: var(--orange-dark); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.proposals-path-kicker span:first-child { color: var(--ink); font-size: 29px; letter-spacing: -.06em; }
.proposals-path h3 { margin: 29px 0 14px; font-size: clamp(39px, 4vw, 60px); line-height: 1.04; letter-spacing: -.055em; }
.proposals-path p { color: var(--ink-soft); line-height: 1.65; font-size: 16px; margin: 0; }
.proposals-path ul { list-style: none; padding: 0; margin: 23px 0 30px; }
.proposals-path li { position: relative; padding: 5px 0 5px 19px; font-size: 14px; font-weight: 700; }
.proposals-path li::before { content: ''; position: absolute; left: 0; top: 12px; width: 7px; height: 7px; background: var(--orange); }
.proposals-path-content > a { margin-top: auto; padding-bottom: 6px; border-bottom: 2px solid var(--orange); font-size: 14px; font-weight: 800; }
.proposals-path-content > a span { color: var(--orange); margin-left: 6px; }
.proposals-prepare { background: #e7ebe8; padding: 100px 0 115px; }
.proposals-prepare-intro { max-width: 780px; margin-bottom: 36px; }
.proposals-prepare-intro > p:last-child { color: var(--ink-soft); font-size: 17px; line-height: 1.65; }
.proposals-prepare-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.proposals-prepare-grid article { background: white; padding: 33px; min-height: 258px; border: 1px solid var(--line); }
.proposals-prepare-grid span { color: var(--orange); font-size: 27px; font-weight: 800; letter-spacing: -.06em; }
.proposals-prepare-grid h3 { font-size: 28px; letter-spacing: -.04em; margin: 26px 0 11px; }
.proposals-prepare-grid p { color: var(--ink-soft); font-size: 15px; line-height: 1.6; }
.proposals-help { background: var(--ink); color: white; padding: 92px 0; }
.proposals-help .section-shell { display: flex; justify-content: space-between; align-items: end; gap: 50px; }
.proposals-help h2 { max-width: 710px; }
.proposals-help p:not(.eyebrow) { max-width: 650px; color: #c9d2d3; line-height: 1.65; }
.proposals-help-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 23px; flex-shrink: 0; }
.proposals-help-actions > a:last-child { border-bottom: 1px solid currentColor; padding-bottom: 5px; font-size: 14px; font-weight: 800; }
.proposals-page footer { padding: 34px 0; }
.proposals-page footer .section-shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; font-size: 13px; }
@media (max-width: 900px) { .proposals-path { grid-template-columns: 1fr; } .proposals-path:nth-child(even) .proposals-path-image { order: 0; } .proposals-path-image { height: 350px; min-height: 350px; } .proposals-path-content { min-height: 400px; } .proposals-help .section-shell { display: block; } .proposals-help-actions { margin-top: 30px; } }
@media (max-width: 650px) { .proposals-page .comparison-header nav a:nth-child(n+3) { display: none; } .proposals-hero { padding: 76px 0 85px; } .proposals-hero h1 { font-size: clamp(48px, 11vw, 67px); } .proposals-proof .section-shell { display: grid; gap: 11px; } .proposals-choose, .proposals-prepare { padding-top: 75px; padding-bottom: 80px; } .proposals-path-image { min-height: 260px; height: 260px; } .proposals-path-content { min-height: 0; padding: 32px 27px; } .proposals-path h3 { font-size: 43px; } .proposals-prepare-grid { grid-template-columns: 1fr; } .proposals-prepare-grid article { min-height: 0; } }

/* Rainmaker Type IIIa installation photo collage */
.projects-rainmaker-collage { grid-template-columns: repeat(6, minmax(0, 1fr)); grid-template-rows: 250px 250px 190px; gap: 10px; }
.projects-rainmaker-collage a { aspect-ratio: auto; height: 100%; }
.projects-rainmaker-collage a:first-child { grid-column: span 4; grid-row: span 2; }
.projects-rainmaker-collage a:nth-child(2), .projects-rainmaker-collage a:nth-child(3) { grid-column: span 2; }
.projects-rainmaker-collage a:nth-child(n+4) { grid-column: span 2; }
.projects-rainmaker-collage a:first-child img { object-position: center 36%; }
@media (max-width: 900px) {
  .projects-rainmaker-collage { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: 330px repeat(3, 180px); }
  .projects-rainmaker-collage a:first-child { grid-column: span 2; grid-row: span 1; }
  .projects-rainmaker-collage a:nth-child(n+2) { grid-column: span 1; }
  .projects-rainmaker-collage a:last-child { grid-column: span 2; }
}
@media (max-width: 650px) {
  .projects-rainmaker-collage { grid-template-rows: 260px repeat(3, 155px); }
}

/* Homepage press brake operator opening */
.home-job-opening {
  background: #20282a;
  border-bottom: 3px solid var(--orange);
  color: white;
}

.home-job-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: 34px 0;
}

.home-job-copy { border-left: 4px solid var(--orange); padding-left: 22px; }
.home-job-inner .eyebrow { margin: 0 0 7px; color: #ff8c53; }
.home-job-inner h2 { margin: 0; font-size: clamp(26px, 3.2vw, 38px); line-height: 1.12; letter-spacing: -.04em; }
.home-job-inner .home-job-copy > p:last-child { max-width: 650px; margin: 9px 0 0; color: #d0d9d9; font-size: 15px; line-height: 1.5; }
.home-job-inner > a { display: inline-flex; flex: none; align-items: center; gap: 20px; padding: 16px 21px; background: var(--orange); color: white; font-size: 14px; font-weight: 800; }
.home-job-inner > a:hover { background: #ce4d1d; }
.home-job-inner > a:focus-visible { outline: 3px solid white; outline-offset: 3px; }

@media (max-width: 650px) {
  .home-job-inner { align-items: flex-start; flex-direction: column; gap: 18px; padding: 27px 0; }
}