/* Stratum HVAC Comfort Labs — mobile-first design system */
:root {
  --color-ink: #081426;
  --color-ink-2: #10223a;
  --color-indigo: #2457f5;
  --color-indigo-dark: #1537b8;
  --color-aqua: #2ed9d0;
  --color-lime: #8bdf2d;
  --color-amber: #ff9b55;
  --color-frost: #f4f8fb;
  --color-mist: #e6eef5;
  --color-text: #1c2b3f;
  --color-muted: #617086;
  --color-white: #fff;
  --font-heading: "Manrope", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
  --radius-card: 22px;
  --radius-small: 12px;
  --shadow-card: 0 18px 55px rgba(8, 20, 38, .11);
  --shadow-dark: 0 24px 80px rgba(0, 6, 20, .35);
  --container: min(1180px, calc(100% - 2rem));
  --header-height: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 18px); }
body { margin: 0; color: var(--color-text); background: var(--color-white); font-family: var(--font-body); line-height: 1.65; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--color-aqua); outline-offset: 3px; }
::selection { background: var(--color-aqua); color: var(--color-ink); }
[hidden] { display: none !important; }
.container { width: var(--container); margin-inline: auto; }
.section { padding: clamp(4.5rem, 9vw, 8.5rem) 0; position: relative; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip-link { position: fixed; z-index: 9999; left: 1rem; top: 1rem; transform: translateY(-150%); background: var(--color-white); color: var(--color-ink); padding: .8rem 1rem; border-radius: 8px; font-weight: 700; box-shadow: var(--shadow-card); }
.skip-link:focus { transform: none; }

h1, h2, h3 { margin: 0; font-family: var(--font-heading); color: var(--color-ink); line-height: 1.08; letter-spacing: -.035em; }
h1 { font-size: clamp(2.7rem, 7vw, 5.75rem); max-width: 11ch; color: var(--color-white); }
h2 { font-size: clamp(2.15rem, 4.5vw, 4rem); }
h3 { font-size: clamp(1.12rem, 2vw, 1.42rem); letter-spacing: -.02em; }
p { margin: 0 0 1rem; }
.eyebrow { display: inline-flex; align-items: center; gap: .55rem; margin-bottom: 1.15rem; color: var(--color-indigo); font-size: .75rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.status-dot { width: .55rem; height: .55rem; background: var(--color-lime); border-radius: 50%; box-shadow: 0 0 0 5px rgba(139, 223, 45, .14); }
.section-heading { max-width: 680px; }
.section-heading.centered { text-align: center; margin: 0 auto clamp(2.5rem, 5vw, 4.5rem); }
.section-heading.centered .eyebrow { justify-content: center; }
.section-heading > p:last-child { color: var(--color-muted); font-size: 1.05rem; max-width: 60ch; margin: 1.15rem auto 0; }

.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: .55rem; padding: .82rem 1.2rem; border: 1px solid transparent; border-radius: 11px; font-family: var(--font-heading); font-weight: 800; font-size: .92rem; text-decoration: none; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button svg { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.button-primary { background: var(--color-indigo); color: var(--color-white); box-shadow: 0 12px 28px rgba(36, 87, 245, .28); }
.button-primary:hover { background: #3568ff; box-shadow: 0 16px 34px rgba(36, 87, 245, .35); }
.button-secondary { background: rgba(255,255,255,.07); color: var(--color-white); border-color: rgba(255,255,255,.22); backdrop-filter: blur(10px); }
.button-secondary:hover { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.36); }
.button-light { background: var(--color-white); color: var(--color-ink); }
.button-outline { color: var(--color-white); border-color: rgba(255,255,255,.45); }
.button-small { min-height: 42px; padding: .62rem .95rem; font-size: .82rem; }
.text-link { display: inline-flex; align-items: center; gap: .45rem; color: var(--color-indigo); font-weight: 800; text-decoration: none; border-bottom: 1px solid rgba(36,87,245,.25); padding-bottom: .18rem; }
.text-link:hover { color: var(--color-indigo-dark); border-color: currentColor; }
.text-link svg { width: 1rem; height: 1rem; fill: none; stroke: currentColor; stroke-width: 1.8; }

/* Header */
.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; height: var(--header-height); background: rgba(8, 20, 38, .9); border-bottom: 1px solid rgba(255,255,255,.1); backdrop-filter: blur(16px); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { width: 154px; min-width: 154px; }
.brand img { width: 100%; height: auto; }
.menu-toggle { width: 45px; height: 45px; display: grid; place-content: center; gap: 5px; border: 1px solid rgba(255,255,255,.18); border-radius: 10px; color: white; background: rgba(255,255,255,.07); cursor: pointer; }
.menu-toggle span { width: 20px; height: 2px; background: currentColor; border-radius: 5px; transition: transform .2s, opacity .2s; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.primary-nav { position: absolute; top: calc(100% + 1px); left: 0; width: 100%; display: none; flex-direction: column; background: var(--color-ink); padding: .75rem 1rem 1.2rem; border-bottom: 1px solid rgba(255,255,255,.12); box-shadow: var(--shadow-dark); }
.primary-nav.is-open { display: flex; }
.primary-nav a { color: rgba(255,255,255,.78); text-decoration: none; font-size: .9rem; font-weight: 700; padding: .78rem .3rem; border-bottom: 1px solid rgba(255,255,255,.08); }
.primary-nav a:hover, .primary-nav a[aria-current="true"] { color: var(--color-white); }
.header-actions { display: none; }

/* Hero */
.hero { min-height: 880px; position: relative; display: grid; align-items: center; padding: calc(var(--header-height) + 4rem) 0 5.5rem; background: var(--color-ink); overflow: hidden; isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -3; background: radial-gradient(circle at 8% 20%, rgba(36,87,245,.28), transparent 34%), radial-gradient(circle at 95% 80%, rgba(46,217,208,.13), transparent 32%); }
.hero::after { content: "STRATUM / CLIMATE LAB"; position: absolute; left: 1rem; bottom: 1.2rem; z-index: -1; color: rgba(255,255,255,.05); font: 800 clamp(2.8rem, 9vw, 8rem)/1 var(--font-heading); letter-spacing: -.06em; white-space: nowrap; }
.climate-layers { position: absolute; inset: auto -8% 7% -8%; z-index: -2; height: 38%; transform: rotate(-5deg); opacity: .68; }
.climate-layers i { position: absolute; left: 0; width: 100%; border-radius: 50%; filter: blur(.2px); }
.climate-layers i:nth-child(1) { height: 72%; bottom: 0; background: rgba(36,87,245,.16); border-top: 1px solid rgba(36,87,245,.6); }
.climate-layers i:nth-child(2) { height: 52%; bottom: -7%; background: rgba(46,217,208,.08); border-top: 1px solid rgba(46,217,208,.6); }
.climate-layers i:nth-child(3) { height: 31%; bottom: -13%; background: rgba(255,155,85,.06); border-top: 1px solid rgba(255,155,85,.4); }
.hero-grid { display: grid; gap: 3rem; align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.hero .eyebrow { color: var(--color-aqua); }
.hero-lede { color: rgba(255,255,255,.7); font-size: clamp(1rem, 2vw, 1.18rem); max-width: 60ch; margin: 1.5rem 0 2rem; }
.hero-actions { display: flex; flex-direction: column; gap: .75rem; align-items: stretch; }
.hero-points { display: grid; gap: .75rem; list-style: none; padding: 0; margin: 1.7rem 0 0; color: rgba(255,255,255,.75); font-size: .86rem; font-weight: 700; }
.hero-points li { display: flex; align-items: center; gap: .45rem; }
.hero-points svg { width: 1rem; height: 1rem; fill: none; stroke: var(--color-lime); stroke-width: 2.2; }
.hero-visual { min-height: 380px; position: relative; overflow: hidden; border: 1px solid rgba(255,255,255,.16); border-radius: 28px 6px 28px 6px; background: #10223a; box-shadow: var(--shadow-dark); }
.hero-visual > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.visual-shade { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(8,20,38,.32), rgba(8,20,38,0) 48%, rgba(8,20,38,.4)); }
.tech-grid { position: absolute; inset: 0; opacity: .2; background-image: linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.16) 1px, transparent 1px); background-size: 46px 46px; mask-image: linear-gradient(to bottom left, #000, transparent 62%); }
.calibration-card { position: absolute; left: 1rem; bottom: 1rem; width: min(200px, 58%); padding: 1rem; border: 1px solid rgba(255,255,255,.2); border-radius: 14px; color: white; background: rgba(8,20,38,.74); backdrop-filter: blur(12px); }
.calibration-label { display: block; font-size: .66rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; color: var(--color-aqua); }
.calibration-card strong { display: block; font: 800 2.4rem/1 var(--font-heading); margin: .5rem 0 .65rem; }
.calibration-card strong span { font-size: 1.2rem; color: var(--color-lime); }
.spectrum { display: block; height: 6px; border-radius: 10px; background: linear-gradient(90deg, var(--color-aqua), var(--color-indigo), var(--color-amber)); position: relative; }
.spectrum i { position: absolute; left: 48%; top: -4px; width: 3px; height: 14px; border-radius: 5px; background: white; }
.spectrum-labels { display: flex; justify-content: space-between; margin-top: .45rem; color: rgba(255,255,255,.6); font-size: .58rem; text-transform: uppercase; letter-spacing: .05em; }
.airflow-tag { position: absolute; display: flex; align-items: center; gap: .45rem; padding: .5rem .65rem; border-radius: 9px; color: white; background: rgba(8,20,38,.72); border: 1px solid rgba(255,255,255,.16); backdrop-filter: blur(9px); font-size: .68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.airflow-tag span { width: .45rem; height: .45rem; border-radius: 50%; background: var(--color-aqua); box-shadow: 0 0 0 4px rgba(46,217,208,.13); }
.airflow-tag-a { right: 1rem; top: 1rem; }
.airflow-tag-b { right: 1rem; top: 4rem; }
.airflow-tag-b span { background: var(--color-amber); box-shadow: 0 0 0 4px rgba(255,155,85,.13); }

/* Trust strip */
.trust-strip { position: relative; z-index: 5; margin-top: -2rem; }
.trust-grid { display: grid; gap: 1px; background: var(--color-mist); border: 1px solid var(--color-mist); box-shadow: var(--shadow-card); }
.trust-grid article { display: flex; align-items: center; gap: .8rem; padding: 1.15rem; background: var(--color-white); }
.trust-grid svg { width: 1.45rem; height: 1.45rem; flex: 0 0 auto; fill: none; stroke: var(--color-indigo); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.trust-grid strong, .trust-grid span { display: block; }
.trust-grid strong { font-family: var(--font-heading); color: var(--color-ink); font-size: .86rem; }
.trust-grid span { color: var(--color-muted); font-size: .73rem; }

/* About */
.about { background: var(--color-white); }
.about-grid { display: grid; gap: 2.5rem; }
.about .section-heading h2 { margin-bottom: 1.5rem; }
.about-copy { color: var(--color-muted); font-size: 1.02rem; }
.about-copy p + p { margin-top: 1.15rem; }
.comfort-meter { padding: 1.3rem; background: var(--color-ink); color: white; border-radius: 4px 24px 4px 24px; box-shadow: var(--shadow-card); }
.meter-top { display: flex; justify-content: space-between; margin-bottom: 1rem; padding-bottom: .8rem; border-bottom: 1px solid rgba(255,255,255,.12); font-size: .66rem; text-transform: uppercase; letter-spacing: .12em; }
.meter-top span { color: var(--color-aqua); }
.meter-row { display: grid; grid-template-columns: 8px 1fr auto; align-items: center; gap: .7rem; min-height: 42px; border-bottom: 1px solid rgba(255,255,255,.08); font-size: .85rem; }
.meter-row:last-child { border-bottom: 0; }
.meter-row i { width: 8px; height: 25px; border-radius: 8px; background: var(--color-aqua); }
.meter-row i.air { background: var(--color-lime); }
.meter-row i.control { background: var(--color-indigo); }
.meter-row i.heat { background: var(--color-amber); }
.meter-row b { color: rgba(255,255,255,.35); font-size: .72rem; }

/* Services */
.services { background: var(--color-frost); }
.services::before { content: ""; position: absolute; inset: 0 0 auto; height: 1px; background: linear-gradient(90deg, transparent, var(--color-aqua), transparent); opacity: .5; }
.service-grid { display: grid; gap: 1rem; }
.service-card { min-height: 320px; display: flex; flex-direction: column; align-items: flex-start; position: relative; padding: 1.45rem; background: white; border: 1px solid #dce6ef; border-radius: var(--radius-card); box-shadow: 0 8px 28px rgba(8,20,38,.06); transition: transform .25s, border-color .25s, box-shadow .25s; scroll-margin-top: calc(var(--header-height) + 18px); }
.service-card:hover { transform: translateY(-5px); border-color: rgba(36,87,245,.42); box-shadow: var(--shadow-card); }
.service-card > svg { width: 2.1rem; height: 2.1rem; margin: 1.6rem 0 1rem; fill: none; stroke: var(--color-indigo); stroke-width: 1.35; stroke-linecap: round; stroke-linejoin: round; }
.service-index { color: var(--color-muted); font-size: .65rem; font-weight: 800; letter-spacing: .13em; }
.service-card h3 { margin-bottom: .8rem; }
.service-card p { color: var(--color-muted); font-size: .91rem; }
.service-card .text-link { margin-top: auto; padding-top: 1rem; font-size: .78rem; }
.service-featured { background: linear-gradient(145deg, var(--color-indigo), #1837a5); border-color: transparent; }
.service-featured h3, .service-featured p, .service-featured .text-link { color: white; }
.service-featured .service-index { color: var(--color-aqua); }
.service-featured > svg { stroke: var(--color-lime); }
.service-dark { background: var(--color-ink); border-color: transparent; }
.service-dark h3, .service-dark p, .service-dark .text-link { color: white; }
.service-dark .service-index { color: var(--color-aqua); }
.service-dark > svg { stroke: var(--color-amber); }
.service-note { margin-top: 1.2rem; display: grid; gap: 1.2rem; align-items: center; padding: 1.25rem; background: white; border: 1px solid var(--color-mist); border-radius: 16px; }
.service-note p { margin: 0; color: var(--color-muted); font-size: .92rem; }
.service-note a { color: var(--color-indigo); font-weight: 700; }
.temperature-flow { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .7rem; font: 800 .62rem var(--font-heading); text-transform: uppercase; letter-spacing: .09em; color: var(--color-muted); }
.temperature-flow i { height: 7px; border-radius: 10px; background: linear-gradient(90deg, var(--color-aqua), var(--color-indigo), var(--color-amber)); }

/* CTA band */
.cta-band { padding: 3.5rem 0; background: var(--color-indigo); color: white; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; width: 380px; height: 380px; right: -130px; top: -150px; border-radius: 50%; border: 1px solid rgba(255,255,255,.22); box-shadow: 0 0 0 50px rgba(255,255,255,.04), 0 0 0 100px rgba(255,255,255,.03); }
.cta-band-inner { display: grid; gap: 1.5rem; align-items: center; position: relative; z-index: 2; }
.cta-band .eyebrow { color: var(--color-lime); margin-bottom: .7rem; }
.cta-band h2 { color: white; font-size: clamp(1.8rem, 4vw, 3.2rem); }
.cta-actions { display: flex; flex-wrap: wrap; gap: .7rem; }

/* Why */
.why { background: white; }
.why-grid { display: grid; gap: 2.5rem; }
.why-intro > p:not(.eyebrow) { color: var(--color-muted); max-width: 55ch; margin: 1.2rem 0 1.8rem; }
.reason-grid { display: grid; gap: 1px; background: var(--color-mist); border: 1px solid var(--color-mist); }
.reason-card { padding: 1.4rem; background: white; }
.reason-card span { display: inline-grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--color-mist); border-radius: 50%; color: var(--color-indigo); font: 800 .68rem var(--font-heading); margin-bottom: 1.2rem; }
.reason-card p { color: var(--color-muted); font-size: .88rem; margin: .6rem 0 0; }

/* Process */
.process { color: white; background: var(--color-ink); overflow: hidden; }
.process::before { content: ""; position: absolute; width: 700px; height: 700px; left: -400px; top: -280px; border-radius: 50%; background: radial-gradient(circle, rgba(46,217,208,.16), transparent 66%); }
.process .section-heading h2 { color: white; }
.process .eyebrow { color: var(--color-aqua); }
.process-rail { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; counter-reset: none; }
.process-rail li { display: grid; grid-template-columns: 54px 1fr; gap: 1rem; align-items: start; padding: 1.25rem; position: relative; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04); border-radius: 16px; }
.process-rail li::before { content: ""; position: absolute; left: 26px; top: 65px; bottom: -18px; width: 1px; background: linear-gradient(var(--color-aqua), transparent); }
.process-rail li:last-child::before { display: none; }
.step-number { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; background: var(--color-indigo); border: 5px solid rgba(255,255,255,.08); color: white; font: 800 .75rem var(--font-heading); }
.process-rail h3 { color: white; margin-bottom: .5rem; }
.process-rail p { color: rgba(255,255,255,.62); margin: 0; font-size: .9rem; }

/* Area and map */
.service-area { background: var(--color-frost); }
.area-grid { display: grid; gap: 2.5rem; align-items: center; }
.area-copy > p:not(.eyebrow) { color: var(--color-muted); }
.area-copy address { display: flex; align-items: flex-start; gap: .9rem; margin: 1.6rem 0; padding: 1rem; background: white; border-left: 4px solid var(--color-indigo); box-shadow: 0 10px 30px rgba(8,20,38,.07); font-style: normal; }
.area-copy address svg { width: 1.45rem; height: 1.45rem; flex: none; fill: none; stroke: var(--color-indigo); stroke-width: 1.8; }
.area-copy address strong, .area-copy address span { display: block; }
.area-copy address strong { color: var(--color-ink); font: 800 .72rem var(--font-heading); text-transform: uppercase; letter-spacing: .1em; }
.area-copy address span { color: var(--color-muted); margin-top: .2rem; }
.area-list { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; margin: 1.3rem 0 1.6rem; }
.area-list li { padding: .48rem .72rem; color: var(--color-muted); background: white; border: 1px solid var(--color-mist); border-radius: 999px; font-size: .76rem; font-weight: 700; }
.area-list li.primary { background: var(--color-indigo); color: white; border-color: var(--color-indigo); }
.map-shell { overflow: hidden; background: var(--color-ink); border-radius: 4px 24px 4px 24px; box-shadow: var(--shadow-card); }
.map-topbar { display: flex; justify-content: space-between; gap: 1rem; padding: .8rem 1rem; color: rgba(255,255,255,.7); font-size: .65rem; text-transform: uppercase; letter-spacing: .09em; }
.map-topbar span:first-child { color: var(--color-aqua); }
#service-map { min-height: 420px; background: #dce9ef; position: relative; }
.map-placeholder { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; background: radial-gradient(circle at center, #e9f8f6, #cadce8); color: var(--color-ink); }
.map-placeholder svg { width: 2.5rem; height: 2.5rem; fill: none; stroke: var(--color-indigo); stroke-width: 1.6; }
.map-placeholder strong { margin-top: .6rem; font-family: var(--font-heading); }
.map-placeholder span { color: var(--color-muted); font-size: .8rem; }
.map-noscript { padding: 1rem; color: white; margin: 0; }
.leaflet-popup-content-wrapper { border-radius: 10px !important; font-family: var(--font-body); }

/* FAQ */
.faq { background: white; }
.faq-layout { display: grid; gap: 2.5rem; }
.faq-intro > p:not(.eyebrow) { color: var(--color-muted); margin: 1rem 0 1.6rem; }
.faq-intro .button-secondary { color: var(--color-indigo); border-color: rgba(36,87,245,.35); background: transparent; }
.accordion { border-top: 1px solid var(--color-mist); }
.faq-item { scroll-margin-top: calc(var(--header-height) + 18px); border-bottom: 1px solid var(--color-mist); }
.faq-item h3 { margin: 0; }
.faq-item button { width: 100%; display: grid; grid-template-columns: 1fr 28px; gap: 1rem; text-align: left; padding: 1.25rem 0; border: 0; background: transparent; color: var(--color-ink); font-family: var(--font-heading); font-weight: 800; line-height: 1.35; cursor: pointer; }
.faq-item button span { width: 27px; height: 27px; position: relative; border-radius: 50%; background: var(--color-frost); }
.faq-item button span::before, .faq-item button span::after { content: ""; position: absolute; left: 7px; right: 7px; top: 13px; height: 1.5px; background: var(--color-indigo); transition: transform .2s; }
.faq-item button span::after { transform: rotate(90deg); }
.faq-item button[aria-expanded="true"] span::after { transform: rotate(0); }
.faq-panel { padding: 0 2.5rem 1.3rem 0; color: var(--color-muted); font-size: .92rem; }
.faq-panel p { margin: 0; }

/* Contact */
.contact { color: white; background: #0b1930; overflow: hidden; }
.contact::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(36,87,245,.14), transparent 45%), repeating-linear-gradient(90deg, transparent 0 74px, rgba(255,255,255,.025) 75px); }
.contact-grid { position: relative; display: grid; gap: 2.5rem; }
.contact .eyebrow { color: var(--color-aqua); }
.contact h2 { color: white; }
.contact-copy > p:not(.eyebrow) { color: rgba(255,255,255,.62); max-width: 56ch; margin: 1rem 0 1.7rem; }
.contact-phone { display: block; width: fit-content; text-decoration: none; margin-bottom: 2rem; }
.contact-phone small, .contact-phone strong { display: block; }
.contact-phone small { color: var(--color-lime); font: 800 .7rem var(--font-heading); text-transform: uppercase; letter-spacing: .1em; }
.contact-phone strong { color: white; font: 800 clamp(1.8rem, 5vw, 3rem)/1.2 var(--font-heading); letter-spacing: -.04em; }
.contact-details { display: grid; gap: 1rem; margin: 0; }
.contact-details div { padding: 1rem 0; border-top: 1px solid rgba(255,255,255,.12); }
.contact-details dt { color: var(--color-aqua); font-size: .66rem; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.contact-details dd { margin: .3rem 0 0; color: rgba(255,255,255,.75); }
.contact-signal { display: none; }
.form-card { padding: clamp(1.25rem, 4vw, 2rem); background: white; color: var(--color-text); border-radius: 4px 24px 4px 24px; box-shadow: var(--shadow-dark); }
.form-heading { margin-bottom: 1.5rem; }
.form-heading span { color: var(--color-indigo); font-size: .65rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.form-heading h3 { margin-top: .3rem; font-size: 1.5rem; }
.field-row { display: grid; gap: 1rem; }
.field { margin-bottom: 1rem; }
.field label { display: block; color: var(--color-ink); font-size: .76rem; font-weight: 800; margin-bottom: .35rem; }
.field input, .field textarea { width: 100%; border: 1px solid #cbd8e4; border-radius: 9px; background: #fbfdff; color: var(--color-ink); padding: .78rem .85rem; outline: none; transition: border-color .2s, box-shadow .2s; }
.field textarea { resize: vertical; min-height: 125px; }
.field input:focus, .field textarea:focus { border-color: var(--color-indigo); box-shadow: 0 0 0 4px rgba(36,87,245,.12); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #c63942; box-shadow: 0 0 0 3px rgba(198,57,66,.1); }
.field-error { display: block; min-height: 1.1em; margin-top: .25rem; color: #a8252e; font-size: .7rem; font-weight: 700; }
.consent-field { display: grid; grid-template-columns: 20px 1fr; gap: .65rem; align-items: start; }
.consent-field input { width: 18px; height: 18px; margin: .2rem 0 0; accent-color: var(--color-indigo); }
.consent-field label { color: var(--color-muted); font-size: .72rem; line-height: 1.5; }
.consent-error { margin: .2rem 0 .8rem 1.7rem; }
.submit-button { width: 100%; }
.form-status { display: none; margin-top: 1rem; padding: .9rem; border-radius: 8px; background: #edf8e4; color: #315d0e; border: 1px solid #c9eaa8; font-size: .82rem; font-weight: 700; }
.form-status.is-visible { display: block; }

/* Final CTA + footer */
.final-cta { padding: 3rem 0; background: var(--color-indigo); color: white; }
.final-cta-inner { display: grid; gap: 1.2rem; align-items: center; }
.final-cta img { width: 70px; height: 70px; border-radius: 16px; box-shadow: 0 12px 30px rgba(8,20,38,.25); }
.final-cta .eyebrow { color: var(--color-lime); margin-bottom: .4rem; }
.final-cta h2 { color: white; font-size: clamp(1.65rem, 3.5vw, 2.65rem); max-width: 22ch; }
.site-footer { padding-top: 3.5rem; background: #050d1a; color: white; }
.footer-main { display: grid; gap: 2rem; padding-bottom: 2.5rem; }
.footer-brand img { width: 230px; height: auto; }
.footer-brand p { color: rgba(255,255,255,.55); max-width: 38ch; font-size: .85rem; margin-top: 1rem; }
.footer-nav, .footer-contact { display: flex; flex-direction: column; align-items: flex-start; gap: .6rem; }
.footer-nav strong, .footer-contact > strong { color: var(--color-aqua); font: 800 .7rem var(--font-heading); letter-spacing: .1em; text-transform: uppercase; margin-bottom: .3rem; }
.footer-nav a, .footer-contact a { color: rgba(255,255,255,.68); text-decoration: none; font-size: .85rem; }
.footer-nav a:hover, .footer-contact a:hover { color: white; }
.footer-contact address, .footer-contact span { color: rgba(255,255,255,.55); font-style: normal; font-size: .8rem; }
.footer-disclaimer { padding: 1.3rem 0; border-top: 1px solid rgba(255,255,255,.1); border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-disclaimer p { margin: 0; color: rgba(255,255,255,.38); font-size: .66rem; line-height: 1.65; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding: 1.25rem 0 calc(5.5rem + env(safe-area-inset-bottom)); color: rgba(255,255,255,.42); font-size: .72rem; }
.footer-bottom p { margin: 0; }
.footer-bottom a { color: rgba(255,255,255,.65); text-decoration: none; }
.mobile-call { position: fixed; z-index: 900; left: 1rem; right: 1rem; bottom: calc(.75rem + env(safe-area-inset-bottom)); min-height: 55px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .6rem; padding: .65rem .85rem; border-radius: 13px; background: var(--color-lime); color: var(--color-ink); text-decoration: none; box-shadow: 0 16px 45px rgba(8,20,38,.36); transition: transform .25s, opacity .25s; }
.mobile-call svg { width: 1.25rem; height: 1.25rem; fill: none; stroke: currentColor; stroke-width: 1.8; }
.mobile-call span { font-family: var(--font-heading); font-weight: 800; }
.mobile-call strong { font-size: .78rem; }
.mobile-call.is-hidden { opacity: 0; transform: translateY(130%); pointer-events: none; }

/* Reveal enhancement */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (min-width: 480px) {
  .hero-actions { flex-direction: row; align-items: center; }
  .hero-points { grid-template-columns: repeat(2, max-content); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .field-row { grid-template-columns: 1fr 1fr; }
  .contact-details { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 720px) {
  :root { --container: min(1180px, calc(100% - 4rem)); --header-height: 84px; }
  .brand { width: 190px; }
  .hero { min-height: 780px; }
  .hero-grid { grid-template-columns: minmax(0, .92fr) minmax(360px, 1.08fr); gap: clamp(2rem, 5vw, 5rem); }
  .hero-visual { min-height: 560px; }
  .trust-grid { grid-template-columns: repeat(4, 1fr); border-radius: 18px; overflow: hidden; }
  .trust-grid article { padding: 1.25rem; }
  .about-grid { grid-template-columns: .85fr 1.2fr; }
  .comfort-meter { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; padding: 0; overflow: hidden; }
  .meter-top { grid-column: 1 / -1; padding: 1rem 1.2rem; margin: 0; }
  .meter-row { grid-template-columns: 8px 1fr auto; min-height: 80px; padding: 0 1rem; border: 0; border-right: 1px solid rgba(255,255,255,.08); }
  .service-grid { grid-template-columns: repeat(3, 1fr); }
  .service-featured { grid-column: span 2; }
  .service-note { grid-template-columns: minmax(220px, .65fr) 1.35fr; padding: 1.5rem; }
  .cta-band-inner { grid-template-columns: 1fr auto; }
  .why-grid { grid-template-columns: .78fr 1.22fr; gap: clamp(3rem, 6vw, 6rem); }
  .reason-grid { grid-template-columns: repeat(2, 1fr); }
  .process-rail { grid-template-columns: repeat(2, 1fr); }
  .process-rail li::before { display: none; }
  .area-grid { grid-template-columns: .85fr 1.15fr; }
  .faq-layout { grid-template-columns: .75fr 1.25fr; gap: clamp(3rem, 6vw, 6rem); align-items: start; }
  .faq-intro { position: sticky; top: calc(var(--header-height) + 2rem); }
  .contact-grid { grid-template-columns: .85fr 1.15fr; gap: clamp(3rem, 7vw, 7rem); }
  .contact-signal { margin-top: 2rem; display: flex; align-items: center; gap: .5rem; color: rgba(255,255,255,.38); font: 700 .66rem var(--font-heading); text-transform: uppercase; letter-spacing: .08em; }
  .contact-signal span { width: 7px; height: 7px; border-radius: 50%; background: var(--color-aqua); }
  .contact-signal span:nth-child(2) { opacity: .55; }
  .contact-signal span:nth-child(3) { opacity: .25; }
  .contact-signal b { margin-left: .3rem; }
  .final-cta-inner { grid-template-columns: auto 1fr auto; }
  .footer-main { grid-template-columns: 1.5fr .6fr .8fr; }
  .footer-bottom { padding-bottom: 1.25rem; }
  .mobile-call { display: none; }
}

@media (min-width: 1040px) {
  .menu-toggle { display: none; }
  .primary-nav { position: static; width: auto; display: flex; flex-direction: row; align-items: center; gap: 1.05rem; padding: 0; border: 0; box-shadow: none; background: transparent; }
  .primary-nav a { padding: .4rem 0; border: 0; font-size: .75rem; }
  .header-actions { display: flex; align-items: center; gap: 1rem; }
  .header-phone { color: white; text-align: right; text-decoration: none; font: 800 .78rem var(--font-heading); line-height: 1.25; }
  .header-phone span { display: block; color: var(--color-aqua); font-size: .56rem; letter-spacing: .08em; text-transform: uppercase; }
  .hero-grid { grid-template-columns: .95fr 1.05fr; }
  .hero-visual { min-height: 620px; }
  .service-grid { grid-template-columns: repeat(4, 1fr); }
  .service-featured { grid-column: span 2; }
  .service-dark { grid-column: span 2; }
  .process-rail { grid-template-columns: repeat(4, 1fr); gap: 0; }
  .process-rail li { min-height: 270px; border-radius: 0; border-right: 0; grid-template-columns: 1fr; padding: 1.5rem; }
  .process-rail li:first-child { border-radius: 18px 0 0 18px; }
  .process-rail li:last-child { border-radius: 0 18px 18px 0; border-right: 1px solid rgba(255,255,255,.12); }
  .process-rail li:nth-child(even) { margin-top: 2.2rem; }
  .process-rail li::before { display: block; left: auto; top: 22px; right: -1px; width: 2px; height: 70%; background: linear-gradient(var(--color-aqua), var(--color-indigo), transparent); z-index: 2; }
  .process-rail li:last-child::before { display: none; }
}

@media (min-width: 1320px) {
  :root { --container: 1240px; }
  .primary-nav { gap: 1.25rem; }
}

@media (max-width: 360px) {
  .brand { width: 135px; min-width: 135px; }
  .hero { padding-top: calc(var(--header-height) + 3rem); }
  .hero h1 { font-size: 2.35rem; }
  .hero-actions .button { width: 100%; }
  .mobile-call strong { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* User-supplied HVAC photography — every photo appears once */
.service-card.has-media { padding-top: 0; overflow: hidden; }
.service-card.has-media .service-photo {
  width: calc(100% + 2.9rem);
  max-width: none;
  height: 168px;
  margin: 0 -1.45rem 1rem;
  object-fit: cover;
  object-position: center;
  border-bottom: 1px solid rgba(8, 20, 38, .1);
}
.service-card.has-media > svg { margin: .85rem 0 .85rem; }
.service-featured.has-media .service-photo { border-bottom-color: rgba(255,255,255,.16); }
#heating-repair .service-photo { object-position: center 28%; }
#furnace-services .service-photo { object-position: center 42%; }
#thermostat-services .service-photo { object-position: center 35%; }
.footer-wordmark { display: inline-flex; flex-direction: column; line-height: .9; }
.footer-wordmark span { color: var(--color-white); font: 800 1.75rem var(--font-heading); letter-spacing: -.05em; }
.footer-wordmark small { color: var(--color-lime); font: 800 .62rem var(--font-heading); letter-spacing: .14em; margin-top: .5rem; }

@media (min-width: 720px) {
  .service-card.has-media .service-photo { height: 185px; }
}