:root {
  --navy: #06284a;
  --navy-2: #0a355e;
  --orange: #ff6a00;
  --orange-dark: #de5600;
  --ink: #152233;
  --muted: #64748b;
  --line: #e5e9f0;
  --soft: #f6f8fb;
  --white: #ffffff;
  --shadow: 0 22px 55px rgba(6, 40, 74, 0.11);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; color: var(--ink); background: var(--white); line-height: 1.6; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.94); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(229,233,240,0.85); }
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { width: 275px; height: auto; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 0.92rem; font-weight: 700; color: var(--navy); }
.nav-links a { opacity: 0.9; }
.nav-links a:hover { opacity: 1; color: var(--orange-dark); }
.nav-cta { border: 1px solid var(--navy); padding: 10px 16px; border-radius: 999px; }
.nav-cta:hover { background: var(--navy); color: white !important; }

.section { padding: 82px 0; }
.eyebrow { margin: 0 0 14px; color: var(--orange-dark); font-size: 0.76rem; font-weight: 900; letter-spacing: 0.14em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.05; color: var(--navy); }
h1 { font-size: clamp(2.45rem, 4.45vw, 4.45rem); letter-spacing: -0.045em; max-width: 800px; text-transform: uppercase; }
h2 { font-size: clamp(2rem, 3.6vw, 3.15rem); letter-spacing: -0.042em; }
h3 { font-size: 1.45rem; letter-spacing: -0.02em; }

.hero { position: relative; overflow: hidden; padding: 88px 0 74px; background: radial-gradient(circle at 82% 12%, rgba(255,106,0,0.10), transparent 28%), linear-gradient(135deg, #ffffff 0%, #f7f8fb 62%, #eef3f8 100%); }
.hero:before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 8px; background: linear-gradient(180deg, var(--navy), var(--orange)); }
.hero-grid { display: grid; grid-template-columns: 0.95fr 0.75fr; gap: 48px; align-items: center; }
.lead { margin: 22px 0 0; max-width: 640px; font-size: 1.12rem; color: #42556c; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border-radius: 999px; font-weight: 800; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--orange); color: white; box-shadow: 0 14px 30px rgba(255,106,0,0.24); }
.button.primary:hover { background: var(--orange-dark); }
.button.secondary { background: white; color: var(--navy); border: 1px solid var(--line); }
.hero-panel { position: relative; }
.panel-card { background: rgba(255,255,255,0.82); border: 1px solid rgba(229,233,240,0.95); border-radius: 28px; padding: 30px; box-shadow: var(--shadow); }
.panel-card img { width: 112px; margin-bottom: 18px; border-radius: 20px; box-shadow: 0 12px 26px rgba(6,40,74,0.12); }
.panel-card h2 { font-size: clamp(1.55rem, 2.2vw, 2.15rem); letter-spacing: -0.04em; }
.panel-card p { color: var(--muted); margin: 14px 0 0; font-size: 1rem; }

.intro-strip { background: var(--navy); color: white; }
.strip-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.strip-grid > div { padding: 24px 34px; border-right: 1px solid rgba(255,255,255,0.14); }
.strip-grid > div:first-child { padding-left: 0; }
.strip-grid > div:last-child { border-right: 0; }
.small-label { display: block; color: rgba(255,255,255,0.65); font-size: 0.76rem; text-transform: uppercase; font-weight: 800; letter-spacing: 0.12em; }
.strip-grid strong { display: block; margin-top: 4px; font-size: 1.17rem; }

.brands-section { background: white; }
.section-heading { max-width: 760px; }
.section-heading.centered { text-align: center; margin: 0 auto 44px; }
.section-heading p:not(.eyebrow) { color: var(--muted); font-size: 1.06rem; margin: 18px 0 0; }
.brand-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.service-card { position: relative; overflow: hidden; background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 18px 40px rgba(15, 35, 58, 0.07); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.service-card:hover { transform: translateY(-6px); box-shadow: 0 30px 60px rgba(15,35,58,0.12); border-color: rgba(255,106,0,0.28); }
.service-card:before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 7px; }
.rooftop-card:before { background: #050505; }
.airflow-card:before { background: #7fa8bf; }
.dust-card:before { background: #2177a8; }
.card-logo { min-height: 138px; padding: 24px; display: flex; align-items: center; justify-content: center; border-bottom: 1px solid var(--line); background: #fbfcfe; }
.card-logo img { max-height: 76px; width: auto; object-fit: contain; }
.rooftop-logo img { max-height: 68px; }
.card-content { padding: 26px; }
.card-content p { color: var(--muted); margin: 14px 0 18px; }
ul { margin: 0 0 22px; padding: 0; list-style: none; }
li { position: relative; padding-left: 22px; margin: 9px 0; color: #334155; font-size: 0.96rem; }
li:before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--orange); position: absolute; left: 0; top: 0.72em; }
.card-link { display: inline-flex; align-items: center; gap: 8px; color: var(--navy); font-weight: 900; }
.card-link span { color: var(--orange); transition: transform .18s ease; }
.card-link:hover span { transform: translateX(4px); }

.about-section { background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.about-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 70px; align-items: start; }
.about-copy { font-size: 1.08rem; color: #42556c; }
.about-copy p { margin-top: 0; }

.contact-band { background: white; }
.contact-card { background: linear-gradient(135deg, var(--navy), var(--navy-2)); color: white; border-radius: 30px; padding: 46px; display: flex; align-items: center; justify-content: space-between; gap: 28px; box-shadow: var(--shadow); position: relative; overflow: hidden; }
.contact-card:after { content: ""; position: absolute; width: 220px; height: 220px; right: -70px; top: -90px; border-radius: 50%; border: 28px solid rgba(255,106,0,0.28); }
.contact-card h2 { color: white; max-width: 660px; }
.contact-card p { color: rgba(255,255,255,0.78); margin: 14px 0 0; }
.contact-card .eyebrow { color: #ffb26d; }
.contact-card .button { position: relative; z-index: 1; white-space: nowrap; }

.footer { background: #071a2d; color: rgba(255,255,255,0.78); padding: 54px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: start; }
.footer-logo { width: 270px; background: white; border-radius: 12px; padding: 6px; }
.footer p { max-width: 460px; }
.footer-links { display: grid; gap: 12px; justify-items: start; }
.footer-links a { color: white; font-weight: 700; }
.footer-links a:hover { color: #ffb26d; }
.footer-bottom { margin-top: 36px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,0.12); display: flex; justify-content: space-between; gap: 18px; font-size: 0.92rem; }
.canada-mark { color: white; font-weight: 800; }

@media (max-width: 980px) {
  .hero-grid, .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .brand-cards { grid-template-columns: 1fr; }
  .service-card { display: grid; grid-template-columns: 0.9fr 1.1fr; }
  .card-logo { border-bottom: 0; border-right: 1px solid var(--line); min-height: auto; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, 1160px); }
  .nav-wrap { min-height: 76px; }
  .brand img { width: 225px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .section { padding: 62px 0; }
  .hero { padding: 66px 0 62px; }
  h1 { font-size: clamp(2.35rem, 12vw, 3.75rem); letter-spacing: -0.055em; }
  .lead { font-size: 1.04rem; }
  .panel-card { padding: 26px; }
  .panel-card img { width: 92px; border-radius: 18px; }
  .strip-grid { grid-template-columns: 1fr; }
  .strip-grid > div { padding: 22px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,0.14); }
  .strip-grid > div:last-child { border-bottom: 0; }
  .service-card { display: block; }
  .card-logo { border-right: 0; border-bottom: 1px solid var(--line); }
  .contact-card { padding: 32px; display: block; }
  .contact-card .button { margin-top: 24px; }
  .footer-grid, .footer-bottom { grid-template-columns: 1fr; display: grid; }
}