:root {
  color-scheme: light;
  --ink: #1f2433;
  --muted: #4b5266;
  --navy: #1c2a5a;
  --navy-deep: #141f45;
  --orange: #ff914d;
  --orange-soft: #fff1e7;
  --blue: #3a56d4;
  --line: #e6e2dc;
  --white: #ffffff;
  --wrap: 1120px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 90px; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: Barlow, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.125rem;
  line-height: 1.65;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
h1, h2, h3 {
  font-family: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
  font-weight: 700;
  line-height: 1.1;
  color: var(--navy);
  margin: 0 0 0.5em;
  letter-spacing: 0.005em;
}
h1 { font-size: clamp(2.3rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.4rem; }
p { margin: 0 0 1em; max-width: 68ch; }
ul, ol { margin: 0 0 1.2em; padding-left: 1.3em; max-width: 68ch; }
li { margin-bottom: 0.35em; }
li::marker { color: #d86a24; font-weight: 600; }
.wrap { width: min(var(--wrap), 100% - 2.5rem); margin-inline: auto; }

.btn {
  display: inline-block;
  font-family: "Barlow Condensed", Arial, sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  padding: 0.65em 1.3em;
  border-radius: 4px;
  line-height: 1.1;
}
.btn-call { background: var(--orange); color: var(--navy-deep); }
.btn-call:hover { background: #ff7f33; }
.btn-line { border: 2px solid currentColor; color: var(--white); }
.btn-line:hover { background: rgba(255,255,255,0.1); }

/* Header */
.top { background: var(--white); border-bottom: 4px solid var(--orange); position: sticky; top: 0; z-index: 10; }
.top .wrap { display: flex; align-items: center; gap: 1.5rem; padding-block: 0.6rem; }
.logo img { width: 114px; height: 60px; }
.nav { display: flex; gap: 1.4rem; margin-left: auto; }
.nav a { color: var(--navy); font-weight: 600; text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: #d86a24; }
.top .btn { white-space: nowrap; }

/* Hero */
.hero { position: relative; background: var(--navy) center / cover no-repeat; color: var(--white); }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(20,31,69,0.94) 0%, rgba(20,31,69,0.82) 45%, rgba(20,31,69,0.25) 100%); }
.hero .wrap { position: relative; padding-block: clamp(3rem, 9vw, 6.5rem); }
.hero h1 { color: var(--white); max-width: 15ch; }
.hero p { color: #e4e8f5; max-width: 52ch; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.4rem; }
.hero.home { background-image: url("/img/duct-cleaning-technician.webp"); }
.page-head { background: var(--navy); color: var(--white); padding-block: clamp(2.2rem, 6vw, 3.5rem); }
.page-head h1 { color: var(--white); margin-bottom: 0.2em; }
.page-head p { color: #f7c7a6; font-weight: 600; margin: 0; font-size: 1.2rem; }

/* Sections */
section.band { padding-block: clamp(2.5rem, 6vw, 4rem); }
section.band.soft { background: var(--orange-soft); }
.split { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.split.flip { grid-template-columns: 1fr 1.4fr; }
.split figure { margin: 0; }
.split figure img { border-radius: 6px; }
.stack > * + * { margin-top: 1rem; }

.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service { text-decoration: none; color: inherit; display: block; border-top: 4px solid var(--navy); padding-top: 1rem; }
.service img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; border-radius: 4px; margin-bottom: 0.9rem; }
.service h3 { margin-bottom: 0.3em; }
.service p { color: var(--muted); font-size: 1.05rem; margin: 0; }
.service:hover h3 { color: #d86a24; }

.cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem 2.5rem; }
.cols h3 { margin-bottom: 0.4em; }

.terms li strong { color: var(--navy); }
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin: 1.2rem 0 1.6rem; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 0.35rem; margin: 0; }
.pair img { aspect-ratio: 3 / 4; object-fit: cover; width: 100%; }
.pair figcaption { grid-column: 1 / -1; font-size: 0.95rem; color: var(--muted); display: flex; justify-content: space-between; }
.homes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.2rem; }
.homes img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; border-radius: 4px; }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.duo img { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; border-radius: 4px; }
.part { border-left: 4px solid var(--orange); padding-left: 1.2rem; margin-bottom: 2rem; }

.callband { background: var(--navy-deep); color: var(--white); }
.callband .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 2rem; }
.callband h2 { color: var(--white); margin: 0; }

footer { background: var(--navy); color: #cdd4ea; font-size: 1rem; }
footer .wrap { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 2rem; padding-block: 2.5rem; }
footer h3 { color: var(--white); font-size: 1.2rem; }
footer a { color: var(--white); }
footer ul { list-style: none; padding: 0; margin: 0; }
footer .legal { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,0.15); padding-top: 1rem; margin: 0; max-width: none; font-size: 0.95rem; }
.logo-chip { background: var(--white); display: inline-block; padding: 6px 8px; border-radius: 4px; margin-bottom: 0.8rem; }
.logo-chip img { width: 114px; height: 60px; }

.fab { display: none; }

@media (max-width: 860px) {
  .nav { display: none; }
  .split, .split.flip, .services, .cols { grid-template-columns: 1fr; }
  .split.flip figure { order: 2; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  footer .wrap { grid-template-columns: 1fr; }
  .top .btn { font-size: 1rem; padding: 0.55em 0.9em; }
  .hero::before { background: rgba(20,31,69,0.85); }
}
@media (max-width: 480px) {
  .homes { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .duo { grid-template-columns: 1fr; }
}