:root {
  --ink: #102331;
  --muted: #536574;
  --brand: #0d4e63;
  --brand-dark: #092b3a;
  --heat: #d95f29;
  --cool: #2c8fc9;
  --line: #d9e2e8;
  --soft: #f3f7f9;
  --paper: #ffffff;
  --gold: #f0b84b;
  --shadow: 0 18px 44px rgba(13, 43, 58, .16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }

.topbar {
  background: var(--brand-dark);
  color: #fff;
  font-size: 14px;
}
.wrap {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}
.topbar .wrap {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.topbar strong { color: #fff4d1; }

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, .95);
  border-bottom: 1px solid rgba(16, 35, 49, .08);
  backdrop-filter: blur(16px);
}
.nav .wrap {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brandmark {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 900;
  color: var(--brand-dark);
}
.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  background:
    linear-gradient(135deg, var(--heat) 0 47%, transparent 48%),
    linear-gradient(315deg, var(--cool) 0 47%, var(--brand) 48%);
  font-size: 17px;
  font-weight: 900;
}
.brandmark span:last-child { display: grid; line-height: 1.1; }
.brandmark small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 15px;
  font-weight: 750;
}
.nav-links a {
  text-decoration: none;
  color: #243846;
}
.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 18px;
  border: 0;
  border-radius: 6px;
  background: var(--heat);
  color: #fff;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(217, 95, 41, .24);
}
.button.secondary {
  background: #fff;
  color: var(--brand-dark);
  box-shadow: inset 0 0 0 1px rgba(16, 35, 49, .16);
}

.hero {
  position: relative;
  color: #fff;
  min-height: calc(100vh - 118px);
  display: grid;
  align-items: end;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(6, 28, 39, .94) 0%, rgba(6, 28, 39, .76) 46%, rgba(6, 28, 39, .32) 100%),
    url("assets/commercial-building-install-1.jpeg") center / cover;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 130px;
  background: linear-gradient(180deg, transparent, rgba(6, 28, 39, .42));
  pointer-events: none;
}
.hero .wrap {
  position: relative;
  z-index: 1;
  padding: 82px 0 44px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, .7fr);
  gap: 42px;
  align-items: end;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  background: rgba(255, 255, 255, .12);
  color: #e8f6fb;
  font-size: 13px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1 {
  max-width: 840px;
  margin: 18px 0 18px;
  font-size: clamp(43px, 7vw, 78px);
  line-height: .98;
  letter-spacing: -.055em;
}
.lead {
  max-width: 720px;
  margin-bottom: 28px;
  color: #e8f1f5;
  font-size: clamp(18px, 2vw, 22px);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.hero-card {
  padding: 24px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .96);
  color: var(--ink);
  box-shadow: var(--shadow);
}
.hero-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--brand-dark);
  font-size: 21px;
}
.hero-card ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.hero-card li {
  position: relative;
  padding: 8px 0 8px 28px;
  color: var(--muted);
  font-weight: 700;
}
.hero-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--heat);
  font-weight: 950;
}

.trustbar {
  position: relative;
  z-index: 2;
  margin-top: -34px;
}
.trustbar .wrap {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  overflow: hidden;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow);
}
.trustbar div {
  padding: 18px 14px;
  border-right: 1px solid var(--line);
  text-align: center;
  color: var(--brand-dark);
  font-size: 14px;
  font-weight: 850;
}
.trustbar div:last-child { border-right: 0; }

section { padding: 86px 0; }
.section-head {
  max-width: 820px;
  margin-bottom: 34px;
}
.kicker {
  color: var(--heat);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
}
h2 {
  margin: 10px 0 14px;
  font-size: clamp(32px, 4.6vw, 52px);
  line-height: 1.04;
  letter-spacing: -.035em;
}
.copy {
  color: var(--muted);
  font-size: 18px;
}
.split {
  display: grid;
  grid-template-columns: 1fr .85fr;
  gap: 44px;
  align-items: center;
}
.feature-img {
  height: 520px;
  width: 100%;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 14px 32px rgba(13, 43, 58, .07);
}
.card h3 { margin-bottom: 8px; font-size: 22px; }
.card p { margin-bottom: 0; color: var(--muted); }
.soft { background: var(--soft); }
.dark {
  background: var(--brand-dark);
  color: #fff;
}
.dark .copy { color: #d7e6ee; }
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.gallery figure {
  margin: 0;
  overflow: hidden;
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 12px 28px rgba(13, 43, 58, .1);
}
.gallery img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.gallery figcaption {
  padding: 14px 16px 16px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.step {
  border-top: 6px solid var(--heat);
  padding-top: 18px;
}
.step b {
  display: block;
  color: var(--gold);
  font-size: 30px;
}

.contact-band {
  padding: 0 0 86px;
  background: var(--soft);
}
.contact-panel {
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 48px;
  align-items: center;
  padding: 52px;
  border-radius: 22px;
  background: var(--brand-dark);
  color: #fff;
  box-shadow: var(--shadow);
}
.contact-panel .copy { color: #d7e6ee; }
.form {
  padding: 28px;
  border-radius: 16px;
  background: #fff;
  color: var(--ink);
}
.form label {
  display: block;
  margin: 13px 0 5px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.form input,
.form select,
.form textarea {
  width: 100%;
  min-height: 47px;
  padding: 11px 12px;
  border: 1px solid #c9d5dc;
  border-radius: 7px;
  background: var(--soft);
  font: inherit;
}
.form textarea {
  min-height: 98px;
  resize: vertical;
}
.form .button {
  width: 100%;
  margin-top: 18px;
}
.consent {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12px;
}

footer {
  padding: 34px 0;
  background: #061c27;
  color: #d7e6ee;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
footer a { color: #fff4d1; text-decoration: none; }
.legal-page {
  padding: 70px 0;
}
.legal-card {
  max-width: 900px;
  padding: 38px;
  border-radius: 18px;
  background: #fff;
  box-shadow: var(--shadow);
}
.legal-card h1 {
  color: var(--ink);
  font-size: clamp(36px, 5vw, 56px);
}
.legal-card h2 {
  margin-top: 30px;
  font-size: 26px;
  letter-spacing: 0;
}
.legal-card p,
.legal-card li {
  color: var(--muted);
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero .wrap,
  .split,
  .contact-panel {
    grid-template-columns: 1fr;
  }
  .trustbar .wrap,
  .cards,
  .gallery,
  .process {
    grid-template-columns: 1fr 1fr;
  }
  .hero { min-height: auto; }
}

@media (max-width: 600px) {
  .wrap { width: calc(100% - 28px); }
  .topbar .wrap { justify-content: center; text-align: center; }
  h1 { font-size: 43px; }
  section { padding: 64px 0; }
  .trustbar .wrap,
  .cards,
  .gallery,
  .process {
    grid-template-columns: 1fr;
  }
  .hero-card,
  .contact-panel,
  .legal-card {
    padding: 24px;
  }
  .feature-img { height: 360px; }
}