:root {
  --ink: #071522;
  --ink-2: #0c2033;
  --slate: #42556a;
  --muted: #6f8092;
  --line: #dce5ec;
  --paper: #ffffff;
  --soft: #f3f7fa;
  --blue: #25aae1;
  --blue-2: #0b87c4;
  --ice: #a7ecff;
  --radius: 20px;
  --shadow: 0 22px 60px rgba(7, 21, 34, .12);
  --shell: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 400 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.035em; }
h1 { font-size: clamp(2.8rem, 6vw, 5.7rem); }
h2 { font-size: clamp(2.05rem, 4vw, 3.8rem); }
h3 { font-size: 1.28rem; }
.shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.section { padding: 112px 0; }
.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; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 1000; padding: 12px 18px; background: #fff; border-radius: 8px; box-shadow: var(--shadow); }
.skip-link:focus { top: 16px; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(7,21,34,.08); }
.header-row { min-height: 88px; display: flex; align-items: center; gap: 28px; }
.brand { flex: 0 1 230px; min-width: 0; }
.brand img { width: 220px; max-width: 100%; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 25px; }
.main-nav a { position: relative; padding: 32px 0 28px; color: var(--slate); font-size: .92rem; font-weight: 720; }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 21px; height: 2px; background: var(--blue); transition: right .2s ease; }
.main-nav a:hover::after, .main-nav a.active::after { right: 0; }
.main-nav a.active { color: var(--ink); }
.header-phone { display: none; font-size: .78rem; line-height: 1.2; color: var(--muted); }
.header-phone strong { display: block; margin-top: 5px; color: var(--ink); font-size: 1rem; }
.nav-toggle { display: none; flex: 0 0 46px; width: 46px; height: 46px; padding: 12px; border: 0; border-radius: 12px; background: var(--soft); }
.nav-toggle > span:not(.sr-only) { display: block; height: 2px; margin: 4px 0; background: var(--ink); }

.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 8px; padding: 12px 21px; border: 1px solid var(--blue); border-radius: 999px; background: var(--blue); color: #031521; font-weight: 800; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(37,170,225,.28); }
.button-large { min-height: 58px; padding-inline: 28px; }
.button-ghost { border-color: rgba(255,255,255,.45); background: rgba(255,255,255,.08); color: #fff; }
.button-dark { border-color: var(--ink); background: var(--ink); color: #fff; }
.button-light { border-color: #fff; background: #fff; color: var(--ink); }
.text-link { display: inline-flex; gap: 8px; align-items: center; color: var(--blue-2); font-weight: 800; }
.text-link.light { color: var(--ice); }
.eyebrow { display: block; margin-bottom: 18px; color: var(--ice); font-size: .76rem; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow.dark { color: var(--blue-2); }

.hero { min-height: min(810px, calc(100vh - 88px)); display: grid; align-items: center; position: relative; isolation: isolate; color: #fff; background: var(--ink); overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background-image: var(--hero); background-size: cover; background-position: center; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(3,13,23,.98) 0%, rgba(3,13,23,.82) 38%, rgba(3,13,23,.22) 67%, rgba(3,13,23,.05) 100%); }
.hero-inner { padding-block: 90px; }
.hero-copy { max-width: 720px; }
.hero-copy h1 { margin-bottom: 26px; max-width: 700px; }
.hero-copy > p { max-width: 650px; margin-bottom: 34px; color: #d5e1eb; font-size: 1.18rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 42px; }
.hero-facts span { padding: 7px 12px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; color: #cfe0ec; font-size: .78rem; font-weight: 750; letter-spacing: .04em; }

.split-intro { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(40px, 8vw, 120px); align-items: start; }
.split-intro h2 { margin-bottom: 0; }
.lead { color: var(--slate); font-size: clamp(1.12rem, 2vw, 1.38rem); }
.benefits { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 76px; }
.benefits article { padding: 32px; border-top: 1px solid var(--line); background: linear-gradient(180deg, #fff, var(--soft)); }
.benefit-number { display: block; margin-bottom: 35px; color: var(--blue); font-size: .85rem; font-weight: 900; }
.benefits p { margin-bottom: 0; color: var(--muted); }

.section-dark { color: #fff; background: var(--ink); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 45px; }
.section-heading h2 { max-width: 720px; margin-bottom: 0; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card { min-width: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius); background: var(--ink-2); transition: transform .22s ease, border-color .22s ease; }
.service-card:hover { transform: translateY(-6px); border-color: rgba(37,170,225,.6); }
.card-image { display: block; aspect-ratio: 3/2; overflow: hidden; background: #0d1c29; }
.card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.service-card:hover .card-image img { transform: scale(1.035); }
.card-body { padding: 28px; }
.card-body h2, .card-body h3 { margin-bottom: 13px; }
.card-body p { min-height: 78px; color: #aebdca; }
.card-link { display: flex; justify-content: space-between; color: var(--ice); font-weight: 800; }
.light-grid .service-card { border-color: var(--line); background: #fff; box-shadow: 0 8px 35px rgba(7,21,34,.06); }
.light-grid .card-body p { color: var(--muted); }
.light-grid .card-link { color: var(--blue-2); }

.pricing-preview { background: var(--soft); }
.refrigerant-teaser { background: linear-gradient(135deg, #eaf8fd, #fff 62%); }
.refrigerant-teaser-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(45px, 8vw, 120px); align-items: center; }
.refrigerant-teaser h2 { margin-bottom: 0; }
.refrigerant-teaser .lead { margin-bottom: 28px; }
.price-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.price-card { display: flex; flex-direction: column; min-width: 0; min-height: 100%; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 12px 40px rgba(7,21,34,.05); }
.price-kicker { color: var(--blue-2); font-size: .77rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.price-card h2, .price-card h3 { margin: 12px 0 18px; font-size: clamp(1.7rem, 2.1vw, 2rem); overflow-wrap: normal; word-break: normal; hyphens: none; }
.price-value { display: block; margin-bottom: 25px; color: var(--ink); font-size: clamp(2rem, 3vw, 2.8rem); line-height: 1; letter-spacing: -.04em; }
.price-card ul { flex: 1; margin: 0 0 26px; padding: 0; list-style: none; }
.price-card li { position: relative; padding: 8px 0 8px 25px; color: var(--slate); border-bottom: 1px solid #edf2f5; }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--blue-2); font-weight: 900; }
.price-note { color: var(--muted); font-size: .9rem; }

.testimonial-section { overflow: hidden; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 42px; }
.testimonial-grid figure { margin: 0; padding: 28px; border-radius: var(--radius); background: var(--soft); }
.testimonial-grid blockquote { margin: 0 0 22px; color: var(--slate); font-size: 1.05rem; }
.testimonial-grid figcaption { color: var(--blue-2); font-weight: 850; }

.faq-preview { background: #fff; }
.faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(45px, 8vw, 110px); align-items: start; }
.faq-layout > div:first-child { position: sticky; top: 125px; }
.faq-layout h2 { margin-bottom: 22px; }
.faq-layout > div:first-child p { color: var(--muted); }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 48px 24px 0; cursor: pointer; list-style: none; font-size: 1.1rem; font-weight: 800; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 8px; top: 20px; color: var(--blue-2); font-size: 1.6rem; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { padding: 0 48px 24px 0; color: var(--muted); }
.faq-list.wide { max-width: 920px; }

.location-block { padding: 90px 0; color: #fff; background: var(--ink-2); }
.location-grid { display: grid; grid-template-columns: .75fr 1.25fr; overflow: hidden; border-radius: 28px; background: var(--ink); }
.location-grid > div { padding: clamp(36px, 6vw, 72px); }
.location-grid h2 { margin-bottom: 22px; }
.location-grid p { color: #c9d7e3; }
.location-grid iframe { width: 100%; height: 100%; min-height: 430px; border: 0; }
.final-cta { padding: 78px 0; color: #fff; background: var(--blue-2); }
.final-cta .shell { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.final-cta h2 { max-width: 750px; margin: 0; }

.page-hero, .service-hero, .booking-hero { padding: 110px 0 90px; color: #fff; background: radial-gradient(circle at 85% 20%, rgba(37,170,225,.25), transparent 32%), var(--ink); }
.page-hero h1 { max-width: 950px; margin-bottom: 20px; }
.page-lead { max-width: 740px; color: #cad8e3; font-size: 1.1rem; }
.page-lead p:last-child { margin-bottom: 0; }
.prose { max-width: 880px; color: var(--slate); font-size: 1.08rem; }
.prose h2, .prose h3 { margin: 1.8em 0 .6em; color: var(--ink); }
.prose a { color: var(--blue-2); text-decoration: underline; }
.service-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.service-hero-grid h1 { margin-bottom: 22px; }
.service-hero-grid p { max-width: 620px; color: #c9d7e3; font-size: 1.15rem; }
.service-hero-grid img { aspect-ratio: 3/2; width: 100%; object-fit: cover; border-radius: 24px; box-shadow: var(--shadow); }
.service-content { display: grid; grid-template-columns: 1.4fr .6fr; gap: 80px; align-items: start; }
.service-content aside { padding: 34px; border-radius: var(--radius); background: var(--soft); }
.booking-hero .button { margin-top: 22px; }
.booking-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.booking-steps article { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); }
.booking-steps span { display: grid; width: 44px; height: 44px; place-items: center; margin-bottom: 42px; border-radius: 50%; background: var(--blue); font-weight: 900; }
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 25px; }
.contact-panel { padding: 42px; border-radius: var(--radius); background: var(--soft); }
.contact-panel dl { margin: 30px 0; }
.contact-panel dt { margin-top: 18px; color: var(--muted); font-size: .78rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.contact-panel dd { margin: 4px 0; font-size: 1.08rem; font-weight: 700; }
.contact-grid iframe { width: 100%; border: 0; border-radius: var(--radius); }
.not-found { min-height: 70vh; display: grid; place-items: center; text-align: center; color: #fff; background: var(--ink); }
.not-found p { color: #c7d4df; }

.refrigerant-hero { padding-bottom: 120px; }
.refrigerant-search-section { padding-top: 0; background: var(--soft); }
.refrigerant-form { position: relative; z-index: 2; transform: translateY(-48px); margin-bottom: -6px; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: var(--shadow); }
.refrigerant-form-grid { display: grid; grid-template-columns: 1fr 1.45fr .72fr auto; gap: 16px; align-items: end; }
.refrigerant-form label { color: var(--slate); font-size: .83rem; font-weight: 800; }
.refrigerant-form input, .refrigerant-form select { display: block; width: 100%; height: 52px; margin-top: 7px; padding: 0 14px; border: 1px solid #cbd7df; border-radius: 10px; color: var(--ink); background: #fff; }
.refrigerant-form input:focus, .refrigerant-form select:focus { outline: 3px solid rgba(37,170,225,.18); border-color: var(--blue); }
.refrigerant-form select:disabled { color: #8a98a6; background: #edf2f5; cursor: not-allowed; }
.refrigerant-form .button { height: 52px; white-space: nowrap; }
.refrigerant-form .button:disabled { opacity: .48; transform: none; box-shadow: none; cursor: not-allowed; }
.form-help { margin: 15px 0 0; color: var(--muted); font-size: .88rem; }
.result-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin: 44px 0 26px; }
.result-heading h2 { margin-bottom: 0; }
.result-heading p { max-width: 430px; margin-bottom: 0; color: var(--muted); }
.refrigerant-results { display: grid; gap: 14px; }
.refrigerant-result { display: grid; grid-template-columns: minmax(260px, 1.15fr) minmax(0, 1.85fr); gap: 28px; padding: 26px 28px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 9px 30px rgba(7,21,34,.045); }
.vehicle-data > span { color: var(--blue-2); font-size: .74rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.vehicle-data h3 { margin: 8px 0 9px; font-size: 1.35rem; letter-spacing: -.02em; overflow-wrap: normal; word-break: normal; hyphens: none; }
.vehicle-data p { margin: 0; color: var(--muted); }
.refrigerant-result dl { display: grid; grid-template-columns: .72fr .9fr 1.25fr; gap: 14px; margin: 0; }
.refrigerant-result dl > div { padding: 14px 17px; border-radius: 12px; background: var(--soft); }
.refrigerant-result dt { color: var(--muted); font-size: .72rem; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }
.refrigerant-result dd { margin: 5px 0 0; color: var(--ink); font-size: 1.18rem; font-weight: 900; }
.refrigerant-result .calculated-price { background: #e9f8fd; }
.refrigerant-result .calculated-price dd { color: #087fb7; }
.refrigerant-result small { display: block; margin-top: 4px; color: var(--muted); line-height: 1.35; }
.empty-result { padding: 40px; border: 1px solid var(--line); border-radius: 18px; background: #fff; text-align: center; }
.empty-result h2 { font-size: 1.8rem; }
.empty-result p { max-width: 700px; margin: 0 auto; color: var(--muted); }
.calculation-note { margin-top: 40px; padding: clamp(28px, 5vw, 50px); border-radius: 22px; color: #d6e2eb; background: var(--ink); }
.calculation-note h2 { color: #fff; font-size: clamp(1.7rem, 3vw, 2.5rem); }
.calculation-note p { max-width: 980px; }
.calculation-note .source-note { color: #91a6b6; font-size: .86rem; }
.calculation-note .button { margin-top: 8px; border-color: var(--blue); background: var(--blue); color: var(--ink); }

.site-footer { padding: 75px 0 25px; color: #c4d0da; background: #030b12; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 70px; }
.footer-logo { width: 260px; padding: 8px; border-radius: 8px; background: #fff; }
.footer-grid p { margin-top: 18px; color: #8fa1b0; }
.footer-grid h2 { color: #fff; font-size: .95rem; letter-spacing: 0; }
.footer-grid a { color: #dce8f0; }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 65px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); color: #6f8291; font-size: .82rem; }
.mobile-book { display: none; }

@media (max-width: 1200px) {
  .price-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1120px) {
  .main-nav { gap: 15px; }
  .main-nav a { font-size: .84rem; }
  .header-book { display: none; }
}

@media (max-width: 900px) {
  .section { padding: 80px 0; }
  .header-row { min-height: 74px; gap: 18px; }
  .brand { flex-basis: 200px; }
  .brand img { width: 190px; max-width: 100%; }
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav { position: absolute; left: 20px; right: 20px; top: 69px; display: none; padding: 14px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow); }
  .main-nav.open { display: grid; }
  .main-nav a { padding: 12px 14px; border-radius: 9px; }
  .main-nav a::after { display: none; }
  .main-nav a.active { background: var(--soft); }
  .hero { min-height: 720px; }
  .hero::before { background-position: 67% center; opacity: .78; }
  .hero::after { background: linear-gradient(90deg, rgba(3,13,23,.98), rgba(3,13,23,.76)); }
  .hero-copy { max-width: 650px; }
  .split-intro, .faq-layout, .location-grid, .service-hero-grid, .service-content, .contact-grid, .refrigerant-teaser-grid { grid-template-columns: 1fr; }
  .benefits, .service-grid, .testimonial-grid, .booking-steps { grid-template-columns: repeat(2, 1fr); }
  .faq-layout > div:first-child { position: static; }
  .location-grid iframe { min-height: 380px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .refrigerant-form-grid { grid-template-columns: 1fr 1fr; }
  .refrigerant-form .button { width: 100%; }
  .refrigerant-result { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { padding-bottom: 64px; }
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .section { padding: 64px 0; }
  .header-row { gap: 12px; }
  .brand { flex: 1 1 auto; max-width: 180px; }
  .brand img { width: 175px; max-width: 100%; }
  .hero { min-height: 690px; }
  .hero-inner { padding: 68px 0; }
  .hero h1 { font-size: clamp(2.65rem, 13vw, 4rem); }
  .hero-copy > p { font-size: 1rem; }
  .hero-actions { display: grid; }
  .hero-actions .button { width: 100%; }
  .benefits, .service-grid, .price-grid, .testimonial-grid, .booking-steps, .footer-grid { grid-template-columns: 1fr; }
  .section-heading, .final-cta .shell { align-items: flex-start; flex-direction: column; }
  .card-body p { min-height: 0; }
  .price-card { padding: 25px; }
  .page-hero, .service-hero, .booking-hero { padding: 78px 0 64px; }
  .service-hero-grid { gap: 35px; }
  .location-block { padding: 45px 0; }
  .location-grid { border-radius: 18px; }
  .location-grid > div { padding: 32px 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .refrigerant-form { transform: translateY(-30px); padding: 22px; }
  .refrigerant-form-grid, .refrigerant-result dl { grid-template-columns: 1fr; }
  .result-heading { align-items: flex-start; flex-direction: column; }
  .refrigerant-result { padding: 22px; }
  .mobile-book { position: fixed; left: 10px; right: 10px; bottom: 8px; z-index: 80; display: flex; min-height: 50px; align-items: center; justify-content: center; border-radius: 999px; background: var(--blue); color: var(--ink); box-shadow: 0 12px 35px rgba(0,0,0,.3); font-weight: 900; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}