:root {
  --navy: #101c2c;
  --navy-2: #17283c;
  --ink: #152033;
  --muted: #5f6978;
  --cream: #f4f1e9;
  --paper: #fffdf7;
  --line: #d8ddd8;
  --lime: #b9e64b;
  --lime-soft: #eaf7c9;
  --aqua: #49c7b0;
  --orange: #ff9d45;
  --radius: 24px;
  --shadow: 0 26px 80px rgba(16, 28, 44, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; color: var(--ink); background: var(--cream); font-family: "DM Sans", sans-serif; line-height: 1.65; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input { font: inherit; }
.shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.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; }
.reading-progress { position: fixed; z-index: 100; inset: 0 0 auto; height: 3px; }
.reading-progress span { display: block; width: 0; height: 100%; background: var(--lime); }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(244,241,233,.9); border-bottom: 1px solid rgba(21,32,51,.09); backdrop-filter: blur(18px); }
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; line-height: 1; }
.brand-sign { width: 42px; height: 42px; position: relative; display: grid; place-items: center; border-radius: 12px; background: var(--navy); color: white; font: 800 19px/1 "Manrope", sans-serif; }
.brand-sign > span { position: absolute; right: 5px; bottom: 5px; color: var(--lime); font-size: 10px; }
.brand-copy { display: flex; flex-direction: column; gap: 5px; }
.brand-copy strong { font: 800 13px/1 "Manrope", sans-serif; letter-spacing: .11em; }
.brand-copy small { color: var(--muted); font-size: 10px; letter-spacing: .04em; }
.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a { text-decoration: none; font-size: 13px; font-weight: 700; }
.main-nav a:hover { color: #2b796c; }
.main-nav .nav-shop { display: inline-flex; align-items: center; gap: 12px; padding: 11px 16px; border-radius: 999px; background: var(--navy); color: white; }
.nav-shop span { color: var(--lime); font-size: 17px; }
.menu-button { display: none; padding: 9px; border: 0; background: transparent; }
.menu-button > span { display: block; width: 25px; height: 2px; margin: 5px 0; background: var(--navy); transition: transform .2s ease, opacity .2s ease; }

.hero { position: relative; overflow: hidden; min-height: 690px; display: grid; align-items: center; background: var(--navy); color: white; }
.hero::after { content: ""; position: absolute; inset: auto -100px -260px auto; width: 560px; height: 560px; border: 90px solid rgba(185,230,75,.1); border-radius: 50%; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 70px; padding-block: 85px 100px; }
.eyebrow { margin: 0 0 18px; display: flex; align-items: center; gap: 10px; color: #387e72; font: 800 11px/1.3 "Manrope", sans-serif; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow > span { width: 28px; height: 2px; background: var(--orange); }
.eyebrow-light { color: var(--lime); }
.hero h1 { max-width: 720px; margin: 0; font: 800 clamp(47px, 6vw, 80px)/1 "Manrope", sans-serif; letter-spacing: -.055em; }
.hero h1 em { color: var(--lime); font-style: normal; }
.hero-lead { max-width: 650px; margin: 29px 0 0; color: rgba(255,255,255,.7); font-size: clamp(18px, 2vw, 21px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 35px; }
.button { min-height: 52px; padding: 0 23px; display: inline-flex; align-items: center; justify-content: center; gap: 15px; border-radius: 999px; text-decoration: none; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,.18); }
.button-primary { background: var(--lime); color: var(--navy); }
.button-secondary { border: 1px solid rgba(255,255,255,.24); color: white; }
.button span { font-size: 18px; }
.safety-line { margin: 24px 0 0; display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.52); font-size: 12px; }
.safety-line span { flex: 0 0 auto; width: 21px; height: 21px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.35); border-radius: 50%; color: var(--lime); font-weight: 800; }
.hero-products { position: relative; min-height: 480px; }
.product-orbit { position: absolute; overflow: hidden; border-radius: 30px; background: white; box-shadow: 0 30px 70px rgba(0,0,0,.25); }
.product-orbit img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.orbit-one { z-index: 3; width: 260px; height: 260px; top: 30px; right: 10px; transform: rotate(4deg); }
.orbit-two { z-index: 2; width: 230px; height: 230px; left: 10px; bottom: 25px; transform: rotate(-6deg); }
.orbit-three { z-index: 4; width: 170px; height: 170px; right: 55px; bottom: 0; transform: rotate(7deg); }
.hero-badge { position: absolute; z-index: 5; left: 18%; top: 45px; padding: 15px 18px; border: 1px solid rgba(255,255,255,.2); border-radius: 15px; background: rgba(16,28,44,.85); backdrop-filter: blur(9px); box-shadow: 0 20px 40px rgba(0,0,0,.2); }
.hero-badge::before { content: ""; display: inline-block; width: 8px; height: 8px; margin-right: 9px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 5px rgba(185,230,75,.15); }
.hero-badge strong { font: 800 14px "Manrope", sans-serif; }
.hero-badge small { display: block; margin: 4px 0 0 17px; color: rgba(255,255,255,.56); font-size: 10px; }
.hero-ring { position: absolute; border: 1px solid rgba(185,230,75,.2); border-radius: 50%; }
.ring-one { width: 350px; height: 350px; right: 0; top: 60px; }
.ring-two { width: 430px; height: 430px; right: 55px; top: 10px; }

.fact-strip { background: var(--lime); }
.fact-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.fact-grid p { min-height: 112px; margin: 0; padding: 25px 30px; display: flex; align-items: center; gap: 18px; border-right: 1px solid rgba(16,28,44,.16); }
.fact-grid p:first-child { padding-left: 0; }
.fact-grid p:last-child { border-right: 0; padding-right: 0; }
.fact-grid strong { font: 800 22px/1.1 "Manrope", sans-serif; white-space: nowrap; }
.fact-grid span { font-size: 13px; line-height: 1.45; }

.section { padding-block: 112px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 55px; margin-bottom: 52px; }
.section-heading h2, .measurement h2, .calibration h2, .law-section h2, .faq-heading h2 { margin: 0; font: 800 clamp(35px, 5vw, 57px)/1.06 "Manrope", sans-serif; letter-spacing: -.045em; }
.section-heading > p { max-width: 470px; margin: 0; color: var(--muted); }
.use-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.use-card { min-height: 430px; display: flex; flex-direction: column; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,253,247,.72); transition: transform .25s ease, box-shadow .25s ease; }
.use-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.use-card-featured { background: var(--navy); color: white; border-color: var(--navy); transform: translateY(-18px); }
.use-card-featured:hover { transform: translateY(-24px); }
.use-number { color: var(--orange); font: 800 12px "Manrope", sans-serif; }
.use-icon { width: 72px; height: 72px; margin: 25px 0 auto; display: grid; place-items: center; border-radius: 17px; background: var(--lime-soft); }
.use-icon img { max-height: 54px; }
.professional-icon { width: 72px; height: 72px; margin: 25px 0 auto; display: flex; align-items: flex-end; justify-content: center; gap: 6px; padding: 14px; border-radius: 17px; background: var(--lime-soft); }
.professional-icon span { width: 10px; border-radius: 5px 5px 2px 2px; background: var(--navy); }
.professional-icon span:nth-child(1) { height: 23px; }.professional-icon span:nth-child(2) { height: 39px; }.professional-icon span:nth-child(3) { height: 31px; }
.use-kicker { margin: 24px 0 7px; color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.use-card-featured .use-kicker { color: rgba(255,255,255,.52); }
.use-card h3 { margin: 0 0 14px; font: 800 28px "Manrope", sans-serif; }
.use-card > p:not(.use-kicker) { margin: 0; color: var(--muted); }
.use-card-featured > p:not(.use-kicker) { color: rgba(255,255,255,.67); }
.use-card > a { margin-top: 25px; padding-top: 17px; display: flex; justify-content: space-between; border-top: 1px solid var(--line); text-decoration: none; font-weight: 800; font-size: 14px; }
.use-card-featured > a { border-color: rgba(255,255,255,.15); }
.use-card > a span { color: var(--orange); }

.measurement { color: white; background: var(--navy); }
.measurement-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; align-items: start; }
.measurement-intro { position: sticky; top: 110px; }
.measurement-intro > p:not(.eyebrow) { color: rgba(255,255,255,.65); font-size: 18px; }
.measurement-intro > a { display: inline-flex; gap: 22px; margin-top: 18px; padding-bottom: 5px; border-bottom: 1px solid rgba(255,255,255,.45); color: white; text-decoration: none; font-weight: 700; }
.measurement-intro > a span { color: var(--lime); }
.steps { list-style: none; margin: 0; padding: 0; }
.steps li { display: grid; grid-template-columns: 54px 1fr; gap: 22px; padding: 27px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.steps li:first-child { padding-top: 0; }
.steps li > span { width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; color: var(--lime); font: 800 13px "Manrope", sans-serif; }
.steps strong { display: block; margin-bottom: 7px; font: 800 20px "Manrope", sans-serif; }
.steps p { margin: 0; color: rgba(255,255,255,.62); }

.sensor-section { background: var(--paper); }
.sensor-compare { display: grid; grid-template-columns: 1fr 80px 1fr; border: 1px solid var(--line); border-radius: 28px; overflow: hidden; }
.sensor-compare article { padding: 45px; }
.sensor-preferred { background: var(--lime-soft); }
.sensor-label { color: var(--muted); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .11em; }
.sensor-compare h3 { margin: 11px 0 26px; font: 800 31px "Manrope", sans-serif; }
.sensor-compare ul { margin: 0; padding-left: 20px; }
.sensor-compare li { margin: 12px 0; padding-left: 5px; }
.sensor-compare li::marker { color: var(--orange); }
.compare-core { display: grid; place-items: center; position: relative; }
.compare-core::before { content: ""; position: absolute; width: 1px; height: 100%; background: var(--line); }
.compare-core span { z-index: 1; width: 47px; height: 47px; display: grid; place-items: center; border-radius: 50%; background: var(--navy); color: var(--lime); font-weight: 800; }
.source-note { margin: 28px 0 0; color: var(--muted); text-align: center; font-size: 14px; }
.source-note a { color: #276f63; font-weight: 700; }

.product-section { color: white; background: var(--navy-2); }
.section-heading-light > p { color: rgba(255,255,255,.62); }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.product-card { padding: 14px 14px 23px; border: 1px solid rgba(255,255,255,.12); border-radius: 20px; background: rgba(255,255,255,.05); }
.product-image { display: grid; place-items: center; aspect-ratio: 1; overflow: hidden; border-radius: 13px; background: white; }
.product-image img { width: 100%; height: 100%; object-fit: contain; transition: transform .3s ease; }
.product-image:hover img { transform: scale(1.04); }
.product-card > p { margin: 20px 6px 3px; color: var(--lime); font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.product-card h3 { margin: 0 6px 10px; font: 800 23px "Manrope", sans-serif; }
.product-card > span { display: block; min-height: 68px; margin: 0 6px; color: rgba(255,255,255,.58); font-size: 13px; }
.product-link { display: flex; justify-content: space-between; margin: 18px 6px 0; padding-top: 15px; border-top: 1px solid rgba(255,255,255,.12); text-decoration: none; font-size: 13px; font-weight: 800; }
.product-link b { color: var(--lime); }
.all-products { margin-top: 25px; padding: 18px 22px; display: flex; justify-content: space-between; border: 1px solid rgba(255,255,255,.15); border-radius: 14px; color: white; text-decoration: none; font-weight: 800; }
.all-products span { color: var(--lime); }

.calibration-card { display: grid; grid-template-columns: .75fr 1.25fr; overflow: hidden; border-radius: 30px; background: var(--paper); box-shadow: var(--shadow); }
.calibration-visual { min-height: 530px; display: grid; place-items: center; background: linear-gradient(145deg, var(--lime) 0 52%, #d3ef8a 52%); }
.dial { width: 235px; height: 360px; position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 13px solid #233147; border-radius: 45px; background: #111b29; box-shadow: 0 35px 60px rgba(16,28,44,.3); }
.dial::before { content: ""; position: absolute; top: 48px; width: 150px; height: 95px; border-radius: 12px; background: #07130f; box-shadow: inset 0 0 25px rgba(185,230,75,.16); }
.dial > span { position: absolute; top: -70px; width: 65px; height: 80px; border-radius: 16px 16px 7px 7px; background: rgba(225,255,245,.75); border: 6px solid #a5d0c5; }
.dial b { z-index: 1; margin-top: -90px; color: var(--lime); font: 700 39px "Manrope", sans-serif; }
.dial small { z-index: 1; color: #63c7a8; letter-spacing: .15em; }
.calibration-copy { padding: 65px; align-self: center; }
.calibration-copy > p:not(.eyebrow) { color: var(--muted); font-size: 17px; }
.calibration-copy ul { margin: 25px 0; padding-left: 20px; }
.calibration-copy li { margin: 8px 0; }
.calibration-copy li::marker { color: var(--orange); }
.inline-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.inline-links a { display: inline-flex; gap: 18px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-size: 13px; font-weight: 800; }
.inline-links a span { color: #2c7569; }

.law-section { color: white; background: #244f4a; }
.law-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; }
.law-copy { font-size: 18px; }
.law-copy > p { margin-top: 0; color: rgba(255,255,255,.72); }
.official-links { display: grid; margin-top: 34px; border-top: 1px solid rgba(255,255,255,.16); }
.official-links a { display: flex; justify-content: space-between; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.16); text-decoration: none; font-size: 14px; font-weight: 800; }
.official-links a span { color: var(--lime); }

.archive-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.archive-grid article { padding: 27px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,253,247,.65); }
.archive-grid span { color: #347c70; font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.archive-grid h3 { margin: 8px 0 10px; font: 800 23px "Manrope", sans-serif; }
.archive-grid p { margin: 0; color: var(--muted); font-size: 14px; }
.legacy-links { margin-top: 16px; border: 1px solid var(--line); border-radius: 15px; background: var(--paper); }
.legacy-links summary { padding: 19px 22px; display: flex; justify-content: space-between; cursor: pointer; list-style: none; font-weight: 800; }
.legacy-links summary::-webkit-details-marker { display: none; }
.legacy-links summary span { color: #347c70; font-size: 20px; transition: transform .2s ease; }
.legacy-links[open] summary span { transform: rotate(45deg); }
.legacy-links > div { padding: 0 22px 22px; color: var(--muted); }
.legacy-links a { display: inline-block; margin: 7px 9px 0 0; padding: 7px 11px; border-radius: 999px; background: var(--lime-soft); color: var(--ink); text-decoration: none; font-size: 13px; font-weight: 700; }

.faq-section { background: var(--paper); }
.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 85px; align-items: start; }
.faq-heading { position: sticky; top: 110px; }
.faq-heading > p:not(.eyebrow) { color: var(--muted); }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { display: flex; justify-content: space-between; align-items: center; gap: 25px; padding: 24px 0; cursor: pointer; list-style: none; font: 800 18px/1.35 "Manrope", sans-serif; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary span { flex: 0 0 auto; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--lime-soft); transition: transform .2s ease; }
.faq-item[open] summary span { transform: rotate(45deg); }
.faq-item p { margin: -5px 55px 24px 0; color: var(--muted); }

.final-cta { padding: 35px 0 90px; background: var(--paper); }
.final-cta-inner { min-height: 280px; padding: 55px 60px; display: flex; align-items: center; justify-content: space-between; gap: 50px; border-radius: 27px; background: var(--lime); }
.final-cta p { margin: 0 0 7px; color: #486114; font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.final-cta h2 { max-width: 720px; margin: 0; font: 800 clamp(30px, 4vw, 48px)/1.1 "Manrope", sans-serif; letter-spacing: -.04em; }
.button-light { flex: 0 0 auto; background: var(--navy); color: white; }
.button-light span { color: var(--lime); }

.site-footer { padding: 60px 0 25px; background: var(--navy); color: white; }
.footer-main { display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; gap: 35px; padding-bottom: 45px; }
.brand-footer .brand-sign { background: white; color: var(--navy); }
.brand-footer .brand-copy small { color: rgba(255,255,255,.48); }
.footer-main > p { margin: 0; color: rgba(255,255,255,.55); text-align: center; font-size: 13px; }
.footer-main nav { display: flex; justify-content: flex-end; gap: 20px; }
.footer-main nav a { color: rgba(255,255,255,.7); text-decoration: none; font-size: 13px; }
.footer-bottom { padding-top: 22px; display: flex; justify-content: space-between; gap: 25px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.4); font-size: 11px; }
.footer-bottom a { color: var(--lime); text-decoration: none; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }
.delay-one { transition-delay: .08s; }.delay-two { transition-delay: .16s; }.delay-three { transition-delay: .24s; }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 25px; }
  .hero-products { min-height: 430px; max-width: 630px; width: 100%; margin-inline: auto; }
  .use-grid { grid-template-columns: 1fr; }
  .use-card { min-height: 330px; }
  .use-card-featured { transform: none; }.use-card-featured:hover { transform: translateY(-6px); }
  .measurement-grid, .law-grid, .faq-grid { grid-template-columns: 1fr; gap: 50px; }
  .measurement-intro, .faq-heading { position: static; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .calibration-card { grid-template-columns: 1fr; }
  .calibration-visual { min-height: 440px; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 32px, 1180px); }
  .header-inner { min-height: 68px; }
  .brand-copy strong { font-size: 11px; }.brand-copy small { font-size: 9px; }
  .menu-button { display: block; z-index: 2; }
  .menu-button[aria-expanded="true"] > span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 68px 0 auto; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 18px 16px 26px; background: var(--cream); border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 10px; }
  .main-nav .nav-shop { justify-content: center; margin-top: 7px; }
  .hero { min-height: auto; }
  .hero-grid { padding-block: 65px; }
  .hero h1 { font-size: clamp(43px, 13vw, 62px); }
  .hero-lead { font-size: 17px; }
  .hero-products { min-height: 350px; }
  .orbit-one { width: 190px; height: 190px; right: 2px; }
  .orbit-two { width: 175px; height: 175px; left: 0; }
  .orbit-three { width: 125px; height: 125px; right: 28px; }
  .hero-badge { left: 4px; top: 40px; }
  .fact-grid { grid-template-columns: 1fr; padding-block: 8px; }
  .fact-grid p, .fact-grid p:first-child, .fact-grid p:last-child { min-height: 0; padding: 17px 0; border-right: 0; border-bottom: 1px solid rgba(16,28,44,.16); }
  .fact-grid p:last-child { border-bottom: 0; }
  .section { padding-block: 78px; }
  .section-heading { display: block; margin-bottom: 38px; }
  .section-heading > p { margin-top: 18px; }
  .sensor-compare { grid-template-columns: 1fr; }
  .sensor-compare article { padding: 30px; }
  .compare-core { height: 68px; }.compare-core::before { width: 100%; height: 1px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card > span { min-height: 0; }
  .calibration-visual { min-height: 390px; }
  .dial { transform: scale(.82); }
  .calibration-copy { padding: 40px 25px; }
  .archive-grid { grid-template-columns: 1fr; }
  .final-cta-inner { min-height: 0; padding: 40px 27px; display: block; }
  .final-cta .button { margin-top: 27px; }
  .footer-main { grid-template-columns: 1fr; text-align: center; }
  .brand-footer { margin-inline: auto; }.footer-main nav { justify-content: center; }
  .footer-bottom { flex-direction: column; align-items: center; gap: 7px; }
}

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