:root {
  --navy: #071b33;
  --navy-2: #0b2b50;
  --blue: #1467b8;
  --ice: #e9f5ff;
  --red: #d7352d;
  --orange: #f06b2c;
  --text: #152033;
  --muted: #637083;
  --line: #dce4ec;
  --soft: #f4f7fa;
  --white: #fff;
  --shadow: 0 22px 60px rgba(7, 27, 51, .14);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: #fff; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; }
img { max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; background: #fff; padding: 10px 16px; z-index: 1000; }
.skip-link:focus { top: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.topbar { background: var(--navy); color: #d7e8f8; font-size: .88rem; }
.topbar-inner { min-height: 38px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.topbar a { color: #fff; font-weight: 700; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(220,228,236,.85); backdrop-filter: blur(12px); }
.nav-wrap { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand span { display: grid; line-height: 1; }
.brand strong { letter-spacing: .07em; font-size: 1.45rem; color: var(--navy); }
.brand small { margin-top: 6px; letter-spacing: .14em; font-weight: 800; font-size: .64rem; color: var(--blue); }
.main-nav { display: flex; align-items: center; gap: 24px; font-size: .95rem; font-weight: 700; }
.main-nav > a:not(.button):hover { color: var(--blue); }
.menu-button { display: none; background: none; border: 0; padding: 8px; }
.menu-button span:not(.sr-only) { display: block; width: 26px; height: 2px; background: var(--navy); margin: 5px; }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 22px; border: 0; border-radius: 9px; background: var(--red); color: #fff; font-weight: 800; box-shadow: 0 10px 24px rgba(215,53,45,.22); cursor: pointer; transition: transform .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(215,53,45,.28); }
.button-small { min-height: 42px; padding-inline: 17px; }
.button-secondary { background: #fff; color: var(--navy); box-shadow: none; border: 1px solid #ccd7e2; }
.button-light { background: #fff; color: var(--navy); box-shadow: none; }
.button-full { width: 100%; }

.hero { position: relative; overflow: hidden; padding: 90px 0 85px; background:
radial-gradient(circle at 85% 20%, rgba(20,103,184,.14), transparent 30%),
linear-gradient(135deg, #f8fbfe 0%, #eef5fb 100%); }
.hero::after { content: ""; position: absolute; width: 520px; height: 520px; right: -250px; bottom: -300px; border-radius: 50%; border: 80px solid rgba(215,53,45,.06); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 70px; align-items: center; }
.eyebrow { margin: 0 0 12px; color: var(--blue); text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 900; }
.eyebrow.light { color: #8fc9ff; }
.hero h1 { margin: 0; color: var(--navy); font-size: clamp(3.1rem, 7vw, 6.25rem); line-height: .93; letter-spacing: -.055em; }
.hero h1 span { color: var(--red); }
.hero-lead { max-width: 720px; margin: 26px 0 30px; font-size: 1.18rem; color: #46566b; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.trust-list { display: flex; flex-wrap: wrap; gap: 18px; margin: 28px 0 0; padding: 0; list-style: none; color: #3c4d62; font-size: .92rem; font-weight: 700; }
.trust-list li::before { content: "✓"; color: var(--blue); margin-right: 7px; }

.hero-card { background: rgba(255,255,255,.95); border: 1px solid rgba(255,255,255,.9); border-radius: 24px; padding: 30px; box-shadow: var(--shadow); }
.hero-card-header { display: flex; align-items: center; gap: 9px; padding-bottom: 18px; border-bottom: 1px solid var(--line); font-size: .86rem; color: #466075; }
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: #3ab66b; box-shadow: 0 0 0 5px rgba(58,182,107,.12); }
.hero-card h2 { margin: 24px 0 8px; font-size: 2rem; line-height: 1.1; color: var(--navy); }
.hero-card p { color: var(--muted); }
.text-link { color: var(--blue); font-weight: 800; }
.mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 26px; }
.mini-grid div { background: var(--soft); border-radius: 12px; padding: 15px; }
.mini-grid strong, .mini-grid span { display: block; }
.mini-grid strong { color: var(--navy); }
.mini-grid span { margin-top: 3px; color: var(--muted); font-size: .78rem; }

.brand-strip { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.strip-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.strip-grid div { padding: 22px 24px; border-right: 1px solid var(--line); }
.strip-grid div:last-child { border-right: 0; }
.strip-grid strong, .strip-grid span { display: block; }
.strip-grid strong { color: var(--navy); }
.strip-grid span { color: var(--muted); font-size: .85rem; }

.section { padding: 95px 0; }
.section-soft { background: var(--soft); }
.section-dark { background: linear-gradient(135deg, var(--navy), var(--navy-2)); color: #fff; }
.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading h2, .section h2 { margin: 0 0 14px; color: var(--navy); font-size: clamp(2.2rem, 4vw, 3.7rem); line-height: 1.06; letter-spacing: -.04em; }
.section-dark h2, .contact-section h2 { color: #fff; }
.section-heading > p:last-child, .section > .container > p { color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 10px 34px rgba(7,27,51,.06); }
.service-card h3 { margin: 18px 0 10px; color: var(--navy); font-size: 1.35rem; }
.service-card p { color: var(--muted); }
.service-card ul { margin: 18px 0 0; padding: 0; list-style: none; }
.service-card li { padding: 7px 0; border-top: 1px solid #edf1f5; font-size: .9rem; }
.icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; font-size: 1.45rem; font-weight: 900; }
.icon.heat { color: var(--red); background: #fff0ed; }
.icon.cool { color: var(--blue); background: #eaf5ff; }
.icon.air { color: #168b84; background: #e8f8f6; }
.icon.commercial { color: #6752a8; background: #f0ecff; }

.maintenance-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.section-dark p { color: #c6d5e4; }
.check-panel { padding: 34px; border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); background: rgba(255,255,255,.07); }
.check-panel h3 { margin-top: 0; font-size: 1.35rem; }
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { padding: 11px 0 11px 31px; border-bottom: 1px solid rgba(255,255,255,.1); position: relative; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: #8fc9ff; font-weight: 900; }
.fine-print { font-size: .82rem; color: var(--muted); }

.about-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; align-items: center; }
.about-visual { min-height: 450px; border-radius: 24px; padding: 36px; background:
linear-gradient(150deg, rgba(7,27,51,.1), rgba(20,103,184,.2)),
linear-gradient(135deg, #dfeaf3, #f8fbfd); display: flex; flex-direction: column; justify-content: space-between; box-shadow: var(--shadow); }
.experience-badge { width: 190px; height: 190px; border-radius: 50%; background: var(--navy); color: #fff; display: grid; place-content: center; text-align: center; box-shadow: 0 18px 38px rgba(7,27,51,.25); }
.experience-badge strong { font-size: 4.8rem; line-height: .9; }
.experience-badge span { max-width: 120px; margin-top: 10px; font-size: .78rem; line-height: 1.25; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.visual-copy { display: flex; flex-wrap: wrap; gap: 8px; }
.visual-copy span { background: rgba(255,255,255,.85); border: 1px solid rgba(255,255,255,.8); border-radius: 999px; padding: 8px 13px; font-size: .78rem; font-weight: 800; color: var(--navy); }
.note-box { margin-top: 26px; padding: 20px 22px; background: #f3f8fc; border-left: 4px solid var(--blue); border-radius: 0 12px 12px 0; }
.note-box p { margin-bottom: 0; color: var(--muted); }

.area-grid { display: grid; grid-template-columns: 1fr .8fr; gap: 70px; align-items: center; }
.area-tags { display: flex; flex-wrap: wrap; gap: 9px; margin: 24px 0 10px; }
.area-tags span { padding: 9px 13px; background: #fff; border: 1px solid var(--line); border-radius: 999px; font-size: .86rem; font-weight: 750; }
.map-placeholder { position: relative; min-height: 390px; overflow: hidden; border-radius: 22px; background:
linear-gradient(90deg, rgba(255,255,255,.55) 1px, transparent 1px),
linear-gradient(rgba(255,255,255,.55) 1px, transparent 1px),
linear-gradient(135deg, #d7e7f4, #b9d0e2);
background-size: 35px 35px,35px 35px,auto; display: grid; place-content: center; text-align: center; color: var(--navy); }
.map-placeholder strong, .map-placeholder span { position: relative; z-index: 2; display: block; }
.map-placeholder span { color: #4f6578; }
.map-pin { position: relative; z-index: 2; width: 76px; height: 76px; margin: 0 auto 18px; border-radius: 50% 50% 50% 0; transform: rotate(-45deg); background: var(--red); color: #fff; display: grid; place-items: center; font-size: 2rem; font-weight: 900; box-shadow: 0 16px 35px rgba(215,53,45,.3); }
.map-pin::first-letter { transform: rotate(45deg); }
.map-pin { text-indent: 2px; }
.map-rings { position: absolute; inset: 50% auto auto 50%; width: 230px; height: 230px; transform: translate(-50%,-50%); border-radius: 50%; border: 2px solid rgba(20,103,184,.24); box-shadow: 0 0 0 55px rgba(20,103,184,.1), 0 0 0 110px rgba(20,103,184,.06); }

.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
blockquote { margin: 0; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
blockquote p { color: var(--muted); font-size: 1rem; }
blockquote cite { color: var(--navy); font-style: normal; font-weight: 800; }
.stars { color: #e9a221; letter-spacing: .08em; }

.contact-section { background: linear-gradient(135deg, #081d37, #0c315b); color: #fff; }
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 65px; align-items: start; }
.contact-section p { color: #c9d9e8; }
.contact-details { margin-top: 28px; display: grid; gap: 10px; }
.contact-details a, .contact-details div { display: grid; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.contact-details span { color: #8fb0cc; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.contact-details strong { margin-top: 3px; }
.contact-form { background: #fff; color: var(--text); border-radius: 20px; padding: 30px; box-shadow: 0 26px 70px rgba(0,0,0,.22); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.contact-form label { display: grid; gap: 7px; margin-bottom: 15px; color: var(--navy); font-size: .84rem; font-weight: 800; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; border: 1px solid #cfd9e3; border-radius: 9px; padding: 12px 13px; color: var(--text); background: #fff; outline: none; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(20,103,184,.12); }
.form-note { margin: 12px 0 0; color: var(--muted)!important; font-size: .76rem; text-align: center; }

.site-footer { background: #041426; color: #c7d7e6; padding: 60px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3,1fr); gap: 50px; }
.footer-grid > div { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.footer-grid > div > strong { color: #fff; margin-bottom: 7px; }
.footer-grid a:hover { color: #fff; }
.footer-brand strong { color: #fff; }
.footer-brand small { color: #8fc9ff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 45px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); color: #7890a5; font-size: .8rem; }

.simple-page { min-height: 70vh; padding: 80px 0; }
.simple-page article { max-width: 800px; }
.simple-page h1 { font-size: clamp(2.4rem,5vw,4.5rem); color: var(--navy); letter-spacing: -.04em; }
.simple-page h2 { margin-top: 34px; color: var(--navy); }
.simple-page p, .simple-page li { color: var(--muted); }

@media (max-width: 980px) {
  .menu-button { display: block; }
  .main-nav { display: none; position: absolute; left: 20px; right: 20px; top: 88px; padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); flex-direction: column; align-items: stretch; }
  .main-nav.open { display: flex; }
  .hero-grid, .maintenance-grid, .about-grid, .area-grid, .contact-grid { grid-template-columns: 1fr; gap: 45px; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .strip-grid { grid-template-columns: 1fr 1fr; }
  .strip-grid div:nth-child(2) { border-right: 0; }
  .strip-grid div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .review-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .container { width: min(100% - 28px, 1160px); }
  .topbar-inner { justify-content: center; }
  .topbar-inner span { display: none; }
  .nav-wrap { min-height: 72px; }
  .brand img { width: 48px; height: 48px; }
  .brand strong { font-size: 1.18rem; }
  .hero { padding: 62px 0; }
  .hero h1 { font-size: clamp(3rem, 16vw, 4.5rem); }
  .hero-card { padding: 22px; }
  .mini-grid, .card-grid, .strip-grid, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .strip-grid div { border-right: 0; border-bottom: 1px solid var(--line); }
  .section { padding: 70px 0; }
  .about-visual { min-height: 350px; }
  .footer-bottom { flex-direction: column; }
}