:root {
  --navy: #071c35;
  --navy-2: #0b2f59;
  --blue: #0d6fc3;
  --cyan: #49b9df;
  --red: #c90635;
  --ink: #152238;
  --muted: #5f6f82;
  --line: #dce4ec;
  --soft: #eef5fa;
  --white: #fff;
  --shadow: 0 18px 50px rgba(7, 28, 53, .12);
}

* { 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;
  line-height: 1.65;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.visually-hidden { 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: -60px; z-index: 200; padding: 10px 14px; background: #fff; color: #000; }
.skip-link:focus { top: 12px; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(7, 28, 53, .97); border-bottom: 1px solid rgba(255,255,255,.12); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand img { width: 218px; height: auto; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { color: #dbe9f5; text-decoration: none; font-size: .91rem; font-weight: 650; letter-spacing: .02em; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: #fff; }
.site-nav .nav-cta { padding: 10px 17px; border-radius: 999px; background: var(--red); color: #fff; }
.menu-button { display: none; padding: 8px 12px; border: 1px solid rgba(255,255,255,.35); border-radius: 6px; color: #fff; background: transparent; font: inherit; }

.hero { position: relative; overflow: hidden; color: #fff; background: linear-gradient(120deg, var(--navy) 0%, var(--navy-2) 65%, #0e5f91 100%); }
.hero::after { content: ""; position: absolute; width: 540px; height: 540px; right: -150px; top: -190px; border-radius: 50%; border: 90px solid rgba(73,185,223,.13); }
.hero-grid { position: relative; z-index: 1; min-height: 650px; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 70px; padding-block: 78px; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: #7fd4ef; font-size: .77rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; }
h1, h2, h3 { margin-top: 0; line-height: 1.12; }
h1 { margin-bottom: 24px; max-width: 830px; font-size: clamp(2.65rem, 6vw, 5.1rem); letter-spacing: -.045em; }
.hero p { max-width: 700px; margin: 0 0 30px; color: #d7e5f1; font-size: 1.15rem; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 21px; border: 1px solid transparent; border-radius: 5px; text-decoration: none; font-weight: 750; }
.button-primary { background: var(--red); color: #fff; }
.button-secondary { border-color: rgba(255,255,255,.42); color: #fff; }
.button-light { background: #fff; color: var(--navy); }
.hero-panel { padding: 34px; border: 1px solid rgba(255,255,255,.18); background: rgba(5,25,48,.6); box-shadow: var(--shadow); backdrop-filter: blur(8px); }
.hero-panel h2 { font-size: 1.35rem; }
.hero-panel ul { margin: 24px 0 0; padding: 0; list-style: none; }
.hero-panel li { display: grid; grid-template-columns: 36px 1fr; gap: 12px; padding: 16px 0; border-top: 1px solid rgba(255,255,255,.16); color: #d7e5f1; }
.hero-panel strong { color: #fff; }
.number { color: #65c9ea; font-weight: 850; }
.showcase-hero { padding: 34px 0 0; color: #fff; background: radial-gradient(circle at 80% 20%, #0d4f7b 0, var(--navy) 42%, #041325 100%); }
.showcase-frame { overflow: hidden; border: 1px solid rgba(255,255,255,.18); box-shadow: 0 28px 80px rgba(0,0,0,.38); }
.showcase-frame img { width: 100%; aspect-ratio: 1200 / 630; object-fit: cover; }
.showcase-actions { display: grid; grid-template-columns: 1fr auto; gap: 36px; align-items: center; padding: 26px 0 30px; }
.showcase-actions p { max-width: 720px; margin: 8px 0 0; color: #d8e8f5; font-size: 1.02rem; }

.trust-strip { background: var(--red); color: #fff; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-item { padding: 23px 24px; border-left: 1px solid rgba(255,255,255,.25); }
.trust-item:last-child { border-right: 1px solid rgba(255,255,255,.25); }
.trust-item strong { display: block; font-size: 1.02rem; }
.trust-item span { color: #ffdce5; font-size: .82rem; }

.section { padding-block: 92px; }
.section-soft { background: var(--soft); }
.section-dark { color: #fff; background: var(--navy); }
.section-head { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: end; margin-bottom: 46px; }
.section-head h2 { margin: 12px 0 0; font-size: clamp(2.15rem, 4vw, 3.5rem); letter-spacing: -.035em; }
.section-head p { margin: 0; color: var(--muted); font-size: 1.05rem; }
.section-dark .section-head p { color: #b9ccdc; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { min-width: 0; padding: 29px; border: 1px solid var(--line); background: #fff; box-shadow: 0 8px 28px rgba(7,28,53,.06); }
.card-number { color: var(--blue); font-size: .78rem; font-weight: 850; letter-spacing: .12em; }
.card h3 { margin: 20px 0 12px; font-size: 1.35rem; }
.card p { margin: 0; color: var(--muted); }
.card-link { display: inline-block; margin-top: 20px; color: var(--blue); font-weight: 750; text-decoration: none; }
.card-image { padding: 0; overflow: hidden; }
.card-image img { width: 100%; height: 250px; object-fit: cover; background: #edf3f7; }
.card-image .card-body { padding: 25px; }
.product-grid { grid-template-columns: repeat(3, 1fr); }
.product-grid-two { grid-template-columns: repeat(2, 1fr); }
.product-card ul { margin: 18px 0 0; padding-left: 18px; color: var(--muted); font-size: .92rem; }
.product-card-target { display: block; height: 100%; color: inherit; text-decoration: none; }
.product-card-featured { position: relative; border-color: rgba(13,111,195,.45); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.product-card-featured:hover { transform: translateY(-5px); border-color: var(--blue); box-shadow: 0 22px 50px rgba(7,28,53,.16); }
.product-card-featured .card-link { margin-top: 18px; color: var(--blue); }

.valve-hero { position: relative; overflow: hidden; padding: 70px 0; color: #fff; background: radial-gradient(circle at 80% 22%, #0b5381 0, var(--navy) 44%, #03101f 100%); }
.valve-hero::after { content: ""; position: absolute; inset: auto -130px -310px auto; width: 620px; height: 620px; border: 1px solid rgba(73,185,223,.25); border-radius: 50%; box-shadow: 0 0 0 75px rgba(73,185,223,.05), 0 0 0 150px rgba(73,185,223,.035); }
.valve-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; gap: 70px; align-items: center; }
.breadcrumb { display: inline-block; margin-bottom: 24px; color: #a9dff1; text-decoration: none; font-size: .82rem; font-weight: 700; }
.valve-hero h1 { margin: 18px 0 22px; max-width: 720px; font-size: clamp(2.75rem, 5.5vw, 4.9rem); }
.valve-hero p { max-width: 690px; margin: 0 0 30px; color: #d2e3ef; font-size: 1.08rem; }
.valve-hero-image { position: relative; min-height: 520px; display: grid; place-items: center; overflow: hidden; border: 1px solid rgba(255,255,255,.17); background: #f4f7f9; box-shadow: 0 32px 85px rgba(0,0,0,.38); }
.valve-hero-image img { position: relative; z-index: 1; width: 100%; height: 100%; max-height: 520px; object-fit: contain; filter: none; }
.valve-intro { padding-bottom: 56px; }
.product-catalog-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 26px; }
.catalog-product { overflow: hidden; border: 1px solid #cad8e3; background: #fff; box-shadow: 0 12px 34px rgba(7,28,53,.08); }
.catalog-product-image { height: 340px; display: grid; place-items: center; overflow: hidden; padding: 22px; background: radial-gradient(circle at 55% 38%, #f9fcfe 0, #e6eef4 58%, #cad9e4 100%); }
.catalog-product-image img { width: auto; height: auto; min-width: 0; min-height: 0; max-width: 100%; max-height: 100%; align-self: center; justify-self: center; object-fit: contain; filter: none; }
.catalog-product-image-light { background: radial-gradient(circle at 55% 38%, #fff 0, #e9f1f6 62%, #cbdbe5 100%); }
.catalog-product-body { padding: 30px; }
.catalog-product h2 { margin: 12px 0 13px; font-size: clamp(1.45rem, 2.3vw, 2rem); }
.catalog-product p, .catalog-product li { color: var(--muted); }
.catalog-product p { margin: 0; }
.catalog-product ul { margin: 19px 0 0; padding-left: 20px; }
.catalog-product li + li { margin-top: 6px; }
.valve-selection { background: #fff; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.split h2 { font-size: clamp(2.1rem, 4vw, 3.4rem); letter-spacing: -.035em; }
.split p { color: var(--muted); }
.check-list { display: grid; gap: 15px; margin: 28px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 31px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--blue); font-weight: 900; }
.process { display: grid; gap: 0; border-top: 1px solid rgba(255,255,255,.18); }
.process-row { display: grid; grid-template-columns: 90px 1fr 1.5fr; gap: 28px; padding: 28px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.process-row span { color: #71cbe9; font-weight: 850; }
.process-row h3 { margin: 0; font-size: 1.18rem; }
.process-row p { margin: 0; color: #b9ccdc; }

.page-hero { padding: 84px 0 72px; color: #fff; background: linear-gradient(125deg, var(--navy), #0b3c6e); }
.page-hero h1 { margin-top: 15px; margin-bottom: 18px; font-size: clamp(2.6rem, 5vw, 4.8rem); }
.page-hero p { max-width: 760px; margin: 0; color: #d2e1ed; font-size: 1.12rem; }
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.detail { padding: 32px; border: 1px solid var(--line); }
.detail h3 { margin-bottom: 14px; font-size: 1.45rem; }
.detail p, .detail li { color: var(--muted); }
.detail ul { padding-left: 19px; }
.spec-note { margin-top: 34px; padding: 24px; border-left: 4px solid var(--blue); background: var(--soft); color: var(--muted); }

.cta { padding: 54px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; color: #fff; background: linear-gradient(110deg, var(--red), #8f082a); }
.cta h2 { margin-bottom: 10px; font-size: clamp(1.8rem, 3vw, 2.7rem); }
.cta p { margin: 0; color: #ffe2ea; }
.contact-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 42px; }
.contact-panel { padding: 32px; color: #fff; background: var(--navy); }
.contact-panel a { color: #83d8f3; }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field-full { grid-column: 1 / -1; }
label { font-weight: 700; font-size: .88rem; }
input, select, textarea { width: 100%; padding: 13px 14px; border: 1px solid #bdcad6; border-radius: 3px; background: #fff; color: var(--ink); font: inherit; }
textarea { min-height: 145px; resize: vertical; }
.form-note { margin: 0; color: var(--muted); font-size: .86rem; }
button.button { cursor: pointer; font: inherit; }

.site-footer { padding: 54px 0 28px; color: #b9c9d7; background: #041325; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 60px; }
.footer-logo { width: 220px; margin-bottom: 18px; }
.site-footer h2 { color: #fff; font-size: 1rem; }
.site-footer a { color: #dceaf5; text-decoration: none; }
.footer-links { display: grid; gap: 8px; }
.copyright { margin-top: 36px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: .82rem; }

@media (max-width: 900px) {
  .menu-button { display: block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 76px; padding: 20px; flex-direction: column; align-items: stretch; gap: 6px; background: var(--navy); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 10px 20px; }
  .hero-grid, .split, .section-head, .contact-grid { grid-template-columns: 1fr; }
  .showcase-actions { grid-template-columns: 1fr; }
  .hero-grid { min-height: auto; gap: 45px; }
  .section-head { gap: 20px; }
  .cards, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .process-row { grid-template-columns: 60px 1fr; }
  .process-row p { grid-column: 2; }
  .valve-hero-grid { grid-template-columns: 1fr; gap: 42px; }
  .valve-hero-image { min-height: 430px; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, 1160px); }
  .brand img { width: 185px; }
  .hero-grid { padding-block: 60px; }
  .showcase-hero { padding-top: 18px; }
  .showcase-actions { gap: 18px; padding-bottom: 24px; }
  h1 { font-size: 2.65rem; }
  .section { padding-block: 68px; }
  .cards, .product-grid, .detail-grid, .footer-grid, .contact-form { grid-template-columns: 1fr; }
  .field-full { grid-column: auto; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-item { border-right: 1px solid rgba(255,255,255,.25); border-bottom: 1px solid rgba(255,255,255,.25); }
  .cta { padding: 34px 25px; grid-template-columns: 1fr; }
  .page-hero { padding-block: 64px; }
  .valve-hero { padding: 52px 0; }
  .valve-hero h1 { font-size: 2.65rem; }
  .valve-hero-image { min-height: 310px; }
  .product-catalog-grid { grid-template-columns: 1fr; }
  .catalog-product-image { height: 270px; }
  .catalog-product-body { padding: 24px; }
}

.ai-launcher { position: fixed; right: 24px; bottom: 24px; z-index: 150; display: flex; align-items: center; gap: 10px; min-height: 52px; padding: 0 19px; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; color: #fff; background: var(--red); box-shadow: 0 15px 45px rgba(7,28,53,.28); font: 750 .9rem/1 inherit; cursor: pointer; }
.ai-launcher-dot { width: 9px; height: 9px; border-radius: 50%; background: #9ff0ff; box-shadow: 0 0 0 5px rgba(159,240,255,.15); }
.ai-panel { position: fixed; right: 24px; bottom: 88px; z-index: 160; width: min(460px, calc(100vw - 32px)); max-height: min(820px, calc(100vh - 115px)); display: none; grid-template-rows: auto minmax(110px, 1fr) auto auto auto auto auto; overflow: hidden; border: 1px solid #c8d5df; border-radius: 14px; background: #fff; box-shadow: 0 28px 80px rgba(3,18,35,.34); }
.ai-panel.is-open { display: grid; }
.ai-panel-header { display: flex; align-items: center; justify-content: space-between; padding: 17px 18px; color: #fff; background: linear-gradient(110deg, var(--navy), #0b4a7b); }
.ai-panel-header strong, .ai-panel-header span { display: block; }
.ai-panel-header span { color: #aadcf0; font-size: .75rem; }
.ai-progress { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; padding: 7px 9px; background: #dce7ed; }
.ai-progress span { padding: 6px 4px; border-radius: 5px; color: #647887; background: #edf3f6; font-size: .65rem; font-weight: 750; text-align: center; }
.ai-progress span.is-current { color: #fff; background: var(--navy-2); }
.ai-progress span.is-complete { color: #07583c; background: #d9f3e7; }
.ai-close { border: 0; color: #fff; background: transparent; font-size: 1.7rem; cursor: pointer; }
.ai-messages { overflow-y: auto; padding: 18px; background: #f3f7fa; }
.ai-message { max-width: 88%; margin-bottom: 11px; padding: 11px 13px; border-radius: 12px; font-size: .89rem; line-height: 1.45; white-space: pre-wrap; }
.ai-message-assistant { border-bottom-left-radius: 3px; background: #fff; box-shadow: 0 3px 13px rgba(7,28,53,.08); }
.ai-message-user { margin-left: auto; border-bottom-right-radius: 3px; color: #fff; background: var(--navy-2); }
.ai-message-system { max-width: 100%; color: #8b1734; background: #ffeaf0; }
.ai-quick-options { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; padding: 0 14px 13px; background: #f3f7fa; }
.ai-quick-options button { min-height: 42px; padding: 7px; border: 1px solid #b7ccd9; border-radius: 7px; color: var(--navy-2); background: #fff; font: 700 .75rem/1.25 inherit; cursor: pointer; }
.ai-contact-setup { padding: 0 14px 12px; border-top: 1px solid var(--line); background: #fff; }
.ai-contact-setup summary { display: flex; justify-content: space-between; gap: 10px; padding: 11px 0 8px; color: var(--navy-2); cursor: pointer; }
.ai-contact-setup summary span { color: var(--muted); font-size: .7rem; text-align: right; }
.ai-contact-setup .ai-contact-grid { margin-top: 4px; }
.ai-contact-setup textarea { width: 100%; margin-top: 3px; padding: 8px; border: 1px solid #aebfca; border-radius: 6px; resize: vertical; font: .84rem/1.4 inherit; }
.ai-contact-wide { grid-column: 1 / -1; }
.ai-contact-actions { display: flex; align-items: center; gap: 10px; margin-top: 9px; }
.ai-contact-save { min-height: 36px; padding: 0 13px; border: 0; border-radius: 7px; color: #fff; background: var(--navy-2); font-weight: 800; cursor: pointer; }
.ai-contact-actions span { color: #0a6848; font-size: .72rem; }
.ai-contact-actions span.is-error { color: #a51d38; }
.ai-initial-consent { margin: 10px 0 0; }
.ai-input-form { display: grid; grid-template-columns: 1fr auto; gap: 8px; padding: 12px; border-top: 1px solid var(--line); }
.ai-input-form textarea { min-height: 48px; max-height: 110px; padding: 10px; border-radius: 8px; font-size: .88rem; }
.ai-input-form button, .ai-submit-button { border: 0; border-radius: 8px; color: #fff; background: var(--red); font-weight: 800; cursor: pointer; }
.ai-input-form button { padding: 0 15px; }
.ai-summary { overflow-y: auto; max-height: 360px; padding: 16px; border-top: 1px solid var(--line); }
.ai-summary-head { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.ai-summary-head span { color: var(--muted); font-size: .76rem; }
.ai-summary-list { margin: 0 0 15px; }
.ai-summary-list dt { margin-top: 8px; color: var(--blue); font-size: .72rem; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }
.ai-summary-list dd { margin: 2px 0 0; font-size: .85rem; }
.ai-contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.ai-contact-grid label { font-size: .74rem; }
.ai-contact-grid input { margin-top: 3px; padding: 8px; font-size: .84rem; }
.ai-consent { display: flex; gap: 8px; margin: 12px 0; color: var(--muted); font-weight: 500; font-size: .75rem; }
.ai-consent input { width: auto; }
.ai-submit-button { width: 100%; min-height: 42px; }
.ai-disclaimer { padding: 8px 14px; color: #6d7e8f; background: #e9f0f5; font-size: .66rem; text-align: center; }
.ai-success { padding: 15px; color: #0a5537; background: #e7f8f0; }
.ai-success p { margin-bottom: 0; font-size: .86rem; }
.ai-panel button:disabled { opacity: .6; cursor: wait; }

@media (max-width: 620px) {
  .ai-launcher { right: 14px; bottom: 14px; }
  .ai-panel { right: 8px; bottom: 76px; width: calc(100vw - 16px); max-height: calc(100vh - 90px); }
  .ai-quick-options, .ai-contact-grid { grid-template-columns: 1fr; }
}