:root {
  --navy: #062f4b;
  --navy-2: #0a496c;
  --blue: #057ac6;
  --cyan: #24bce7;
  --aqua: #dff7ff;
  --green: #54a915;
  --green-dark: #2e7f11;
  --lime: #9ddd0a;
  --ink: #0a3047;
  --text: #526875;
  --mist: #f4fafc;
  --line: #c8e7f0;
  --white: #fff;
  --orange: #f5a30b;
  --radius: 28px;
  --radius-sm: 18px;
  --shadow: 0 24px 70px rgba(6, 47, 75, .13);
  --shadow-soft: 0 14px 36px rgba(6, 47, 75, .09);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
.section { padding: 104px 0; }
.section.compact { padding: 76px 0; }
.section.tint { background: var(--mist); }
.section.dark { color: var(--white); background: var(--navy); }
.section[id] { scroll-margin-top: 100px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  color: var(--navy);
  background: var(--aqua);
  border: 1px solid #bce8f4;
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.kicker::before { content: ""; width: 8px; height: 8px; background: var(--green); border-radius: 50%; }
.dark .kicker { color: #fff; background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .15); }
.section-title {
  max-width: 900px;
  margin: 18px 0;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: .98;
  letter-spacing: -.055em;
}
.section-title span { color: var(--blue); }
.section-lead { max-width: 780px; margin: 0; color: var(--text); font-size: clamp(1.05rem, 2vw, 1.3rem); }
.dark .section-lead { color: #c3dbe6; }
.btn {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 16px;
  font-weight: 850;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: linear-gradient(135deg, var(--blue), var(--cyan)); box-shadow: 0 14px 30px rgba(5, 122, 198, .26); }
.btn-green { color: #fff; background: linear-gradient(135deg, var(--green-dark), var(--green)); box-shadow: 0 14px 30px rgba(84, 169, 21, .2); }
.btn-outline { color: var(--navy); background: #fff; border-color: #b8dce8; }
.btn-dark { color: #fff; background: var(--navy); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  background: rgba(255, 255, 255, .95);
  border-bottom: 1px solid rgba(200, 231, 240, .82);
  backdrop-filter: blur(18px);
}
.nav { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 190px; }
.brand img { width: 190px; height: 72px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: .94rem; font-weight: 800; }
.nav-links a { position: relative; padding: 12px 0; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 5px; height: 2px; background: linear-gradient(90deg, var(--blue), var(--green)); transition: right .2s ease; }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { right: 0; }
.nav-cta { white-space: nowrap; }
.menu-btn { display: none; width: 48px; height: 48px; border: 1px solid var(--line); border-radius: 14px; background: #fff; font-size: 1.4rem; cursor: pointer; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 98px 0 86px;
  background:
    radial-gradient(circle at 87% 18%, rgba(157, 221, 10, .18), transparent 24%),
    radial-gradient(circle at 73% 58%, rgba(36, 188, 231, .23), transparent 33%),
    linear-gradient(180deg, #effbff 0%, #fff 86%);
}
.hero::before {
  content: "";
  position: absolute;
  top: 44px;
  right: -110px;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(5, 122, 198, .12);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(36, 188, 231, .04), 0 0 0 140px rgba(84, 169, 21, .035);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1fr .96fr; align-items: center; gap: 54px; }
.hero h1 { max-width: 760px; margin: 20px 0 22px; font-size: clamp(3.2rem, 7.2vw, 6.8rem); line-height: .88; letter-spacing: -.07em; }
.hero h1 span { display: block; color: var(--blue); }
.hero-copy { max-width: 690px; margin: 0; color: var(--text); font-size: clamp(1.08rem, 2vw, 1.34rem); }
.proof-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 25px; }
.proof-row span { padding: 9px 12px; background: #fff; border: 1px solid var(--line); border-radius: 999px; color: var(--navy-2); font-size: .88rem; font-weight: 800; box-shadow: var(--shadow-soft); }
.range-visual { position: relative; min-height: 590px; }
.molecule-orbit { position: absolute; inset: 14% 9% 11%; border: 1px dashed rgba(5, 122, 198, .33); border-radius: 50%; transform: rotate(-12deg); }
.range-grid { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.range-tile { overflow: hidden; min-height: 250px; background: #fff; border: 1px solid rgba(184, 220, 232, .9); border-radius: 24px; box-shadow: var(--shadow); }
.range-tile:nth-child(2) { margin-top: 54px; }
.range-tile:nth-child(3) { margin-top: -34px; }
.range-tile:nth-child(4) { margin-top: 20px; }
.range-tile img { width: 100%; height: 188px; object-fit: cover; object-position: top; }
.range-tile div { padding: 14px 16px 17px; }
.range-tile strong { display: block; font-size: 1rem; }
.range-tile small { color: var(--text); }
.range-note { position: absolute; z-index: 3; right: -8px; bottom: 7px; max-width: 255px; padding: 16px 18px; color: #fff; background: var(--navy); border-radius: 18px; box-shadow: var(--shadow); }
.range-note strong { display: block; font-size: 1.35rem; line-height: 1.05; }

.signal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 46px; }
.signal-card { padding: 26px; background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-soft); }
.signal-card .num { display: grid; width: 44px; height: 44px; place-items: center; margin-bottom: 20px; color: #fff; background: var(--navy); border-radius: 14px; font-weight: 900; }
.signal-card h3 { margin: 0 0 8px; font-size: 1.35rem; }
.signal-card p { margin: 0; color: var(--text); }

.technology-grid { display: grid; grid-template-columns: .88fr 1.12fr; align-items: center; gap: 70px; margin-top: 48px; }
.membrane-stage { position: relative; min-height: 520px; display: grid; place-items: center; }
.membrane-core { position: relative; width: 190px; height: 420px; padding: 16px; background: linear-gradient(180deg, #fff, #d9f4fb); border: 1px solid #a9dce9; border-radius: 42px; box-shadow: var(--shadow); }
.membrane-core::before { content: ""; position: absolute; inset: 32px 50%; width: 2px; background: repeating-linear-gradient(to bottom, var(--blue) 0 10px, transparent 10px 20px); }
.water-node { position: absolute; top: 50%; width: 154px; height: 154px; display: grid; place-items: center; padding: 20px; border-radius: 50% 50% 50% 18%; transform: translateY(-50%) rotate(45deg); font-weight: 900; text-align: center; }
.water-node span { transform: rotate(-45deg); }
.water-node.in { left: 0; color: #fff; background: linear-gradient(135deg, var(--blue), var(--cyan)); }
.water-node.out { right: 0; color: var(--navy); background: #fff; border: 3px solid var(--green); }
.flow-line { position: absolute; top: 50%; left: 24%; right: 24%; height: 5px; background: linear-gradient(90deg, var(--cyan), var(--green)); }
.tech-copy h2 { margin-top: 18px; }
.step-list { display: grid; gap: 14px; margin-top: 28px; }
.tech-step { display: grid; grid-template-columns: 48px 1fr; gap: 14px; align-items: start; padding: 15px 18px; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .12); border-radius: 18px; }
.tech-step b { display: grid; width: 38px; height: 38px; place-items: center; color: var(--navy); background: var(--lime); border-radius: 12px; }
.tech-step h3 { margin: 1px 0 3px; font-size: 1.08rem; }
.tech-step p { margin: 0; color: #c6dbe5; font-size: .93rem; }
.legal-note { margin-top: 24px; padding: 18px 20px; color: #d4e6ee; background: rgba(255, 255, 255, .07); border-left: 4px solid var(--lime); border-radius: 12px; font-size: .9rem; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 42px; }
.product-card { overflow: hidden; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow-soft); }
.product-card .product-image { position: relative; overflow: hidden; height: 265px; background: #e8f8fd; }
.product-card .product-image img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .35s ease; }
.product-card:hover .product-image img { transform: scale(1.025); }
.product-card .pill { position: absolute; left: 14px; top: 14px; padding: 7px 10px; color: #fff; background: rgba(6, 47, 75, .9); border-radius: 999px; font-size: .72rem; font-weight: 900; text-transform: uppercase; }
.product-body { flex: 1; display: flex; flex-direction: column; padding: 24px; }
.product-body h3 { margin: 0 0 8px; font-size: 1.5rem; }
.product-body p { margin: 0 0 18px; color: var(--text); }
.product-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: auto; }
.product-tags span { padding: 6px 9px; color: var(--navy-2); background: var(--aqua); border-radius: 999px; font-size: .76rem; font-weight: 800; }
.card-link { display: inline-flex; margin-top: 18px; color: var(--blue); font-weight: 850; }

.compare-table { overflow-x: auto; margin-top: 38px; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-soft); }
.compare-table table { width: 100%; min-width: 800px; border-collapse: collapse; background: #fff; }
.compare-table th, .compare-table td { padding: 15px 18px; border-bottom: 1px solid #dcebf0; text-align: left; }
.compare-table th { color: #fff; background: var(--navy); font-size: .82rem; letter-spacing: .04em; text-transform: uppercase; }
.compare-table tr:last-child td { border-bottom: 0; }
.compare-table td:first-child { font-weight: 850; }

.tap-tabs { display: flex; flex-wrap: wrap; gap: 9px; margin: 34px 0 26px; }
.tap-tabs button { padding: 10px 15px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-weight: 800; cursor: pointer; }
.tap-tabs button[aria-pressed="true"] { color: #fff; background: var(--navy); }
.tap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tap-card { display: flex; flex-direction: column; min-height: 300px; padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-soft); }
.tap-card[hidden] { display: none; }
.tap-card img { width: 100%; height: 170px; object-fit: contain; }
.tap-card h3 { margin: 16px 0 3px; font-size: 1rem; }
.tap-card p { margin: 0; color: var(--text); font-size: .88rem; }
.tap-card .type { margin-top: auto; padding-top: 14px; color: var(--green-dark); font-size: .75rem; font-weight: 900; text-transform: uppercase; }

.benefit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 38px; }
.benefit-card { padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 24px; }
.benefit-card h3 { margin: 0 0 9px; font-size: 1.35rem; }
.benefit-card p { margin: 0; color: var(--text); }
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 38px; }
.quote-card { padding: 28px; background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-soft); }
.quote-card blockquote { margin: 0 0 18px; font-size: 1.12rem; font-weight: 750; line-height: 1.45; }
.quote-card .quote-label { color: var(--green-dark); font-size: .77rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.review-policy { margin-top: 30px; padding: 20px 22px; color: var(--text); background: var(--aqua); border-radius: 18px; }

.privacy-shell { max-width: 920px; margin: 0 auto; padding: 44px; background: #fff; border: 1px solid var(--line); border-radius: 30px; box-shadow: var(--shadow-soft); }
.privacy-shell h2 { margin: 34px 0 10px; font-size: 1.45rem; }
.privacy-shell h2:first-child { margin-top: 0; }
.privacy-shell p, .privacy-shell li { color: var(--text); }
.privacy-shell a { color: var(--blue); text-decoration: underline; }
.privacy-shell .privacy-contact { margin-top: 34px; padding: 22px; background: var(--aqua); border-radius: 18px; }

.calculator { margin-top: 40px; padding: 30px; background: #fff; border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow); }
.calc-fields, .calc-results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.field label { display: block; margin-bottom: 7px; font-size: .86rem; font-weight: 850; }
.field input, .field select, .field textarea { width: 100%; min-height: 50px; padding: 12px 14px; border: 1px solid #b8d9e4; border-radius: 13px; outline: none; background: #fff; }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(5, 122, 198, .1); }
.calc-results { margin-top: 18px; }
.calc-result { padding: 18px; color: #fff; background: var(--navy); border-radius: 18px; }
.calc-result strong { display: block; font-size: 1.65rem; }
.calc-result span { color: #c7dce6; font-size: .86rem; }
.fine-print { margin: 14px 0 0; color: #718591; font-size: .82rem; }

.service-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 36px; }
.service-item { padding: 20px; border: 1px solid rgba(255, 255, 255, .13); border-radius: 20px; background: rgba(255, 255, 255, .07); }
.service-item b { display: grid; width: 38px; height: 38px; place-items: center; margin-bottom: 14px; color: var(--navy); background: var(--lime); border-radius: 12px; }
.service-item h3 { margin: 0 0 5px; font-size: 1.05rem; }
.service-item p { margin: 0; color: #c3dbe6; font-size: .9rem; }

.contact-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 34px; align-items: start; margin-top: 38px; }
.contact-aside { padding: 30px; color: #fff; background: linear-gradient(145deg, var(--navy), var(--navy-2)); border-radius: 28px; box-shadow: var(--shadow); }
.contact-aside h3 { margin: 0 0 10px; font-size: 1.8rem; }
.contact-aside p { color: #c4dbe5; }
.contact-aside a { color: var(--lime); font-weight: 850; }
.form-card { padding: 30px; background: #fff; border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow-soft); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field.full { grid-column: 1 / -1; }
.privacy-check { display: grid; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; margin: 17px 0; color: var(--text); font-size: .88rem; }
.privacy-check input { margin-top: 4px; }
.privacy-check a { color: var(--blue); text-decoration: underline; }
.form-status { min-height: 24px; margin-top: 12px; font-weight: 750; }
.form-status.ok { color: var(--green-dark); }
.form-status.error { color: #b3263f; }
.honeypot { position: absolute !important; left: -10000px !important; }

.page-hero { padding: 90px 0 72px; background: linear-gradient(180deg, #edfaff 0%, #fff 100%); }
.page-hero-grid { display: grid; grid-template-columns: 1fr .72fr; gap: 44px; align-items: center; }
.page-hero h1 { margin: 18px 0; font-size: clamp(3rem, 7vw, 6.4rem); line-height: .9; letter-spacing: -.065em; }
.page-hero .visual-panel { min-height: 350px; padding: 28px; display: grid; place-items: center; color: #fff; background: var(--navy); border-radius: 36px; box-shadow: var(--shadow); }
.visual-panel .big-number { font-size: clamp(5rem, 12vw, 9rem); line-height: .9; font-weight: 950; letter-spacing: -.08em; }
.visual-panel p { margin: 12px 0 0; color: #c5dce6; text-align: center; }

.footer { padding: 54px 0 26px; color: #c9dce5; background: #041f31; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 30px; }
.footer-logo { width: 200px; height: 95px; object-fit: contain; background: #fff; border-radius: 18px; }
.footer h3 { color: #fff; margin: 0 0 12px; font-size: 1rem; }
.footer p { margin: 8px 0; font-size: .9rem; }
.footer a:hover { color: var(--lime); }
.footer-links { display: grid; gap: 8px; }
.footer-bottom { margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .1); color: #9eb8c4; font-size: .78rem; }

@media (max-width: 1020px) {
  .nav-links { position: fixed; top: 86px; left: 20px; right: 20px; display: none; padding: 20px; flex-direction: column; align-items: stretch; gap: 4px; background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .menu-btn { display: inline-grid; place-items: center; }
  .nav-cta { display: none; }
  .hero-grid, .technology-grid, .contact-grid, .page-hero-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 74px; }
  .range-visual { max-width: 660px; margin: 0 auto; }
  .technology-grid { gap: 34px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .tap-grid { grid-template-columns: repeat(3, 1fr); }
  .service-band { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .container { width: min(100% - 26px, var(--max)); }
  .section { padding: 78px 0; }
  .brand img { width: 150px; height: 64px; }
  .nav { min-height: 76px; }
  .nav-links { top: 76px; }
  .hero h1 { font-size: clamp(3rem, 16vw, 5rem); }
  .range-visual { min-height: 480px; }
  .range-tile { min-height: 205px; }
  .range-tile img { height: 145px; }
  .range-note { max-width: 210px; right: 0; }
  .signal-grid, .product-grid, .benefit-grid, .quote-grid, .calc-fields, .calc-results { grid-template-columns: 1fr; }
  .tap-grid { grid-template-columns: repeat(2, 1fr); }
  .service-band { grid-template-columns: 1fr; }
  .membrane-stage { min-height: 420px; transform: scale(.84); margin: -35px -45px; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .footer-grid { grid-template-columns: 1fr; }
  .privacy-shell { padding: 26px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}