:root {
  --navy: #071f55;
  --blue: #0a3d8f;
  --red: #e21b23;
  --ink: #111827;
  --muted: #667085;
  --line: #e6e9ef;
  --soft: #f6f7f9;
  --white: #ffffff;
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.5;
}
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 0 4vw;
  border-bottom: 1px solid rgba(7,31,85,.08);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: -.04em; }
.brand-mark { width: 38px; height: 38px; display:grid; place-items:center; background: var(--navy); color: white; border-radius: 50%; font-style: italic; }
.brand-name { color: var(--navy); white-space: nowrap; }
.brand-name em { color: var(--red); font-style: normal; }
.main-nav { justify-self: center; display: flex; gap: 28px; color: #475467; font-size: 14px; font-weight: 600; }
.main-nav a:hover { color: var(--navy); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.language-switcher { display: flex; gap: 3px; background: var(--soft); padding: 4px; border-radius: 999px; }
.language-switcher button { border: 0; background: transparent; padding: 7px 9px; border-radius: 999px; font-size: 12px; font-weight: 800; color: #667085; }
.language-switcher button.active { background: white; color: var(--navy); box-shadow: 0 1px 4px rgba(0,0,0,.08); }
.buy-small { border: 0; border-radius: 999px; padding: 10px 16px; background: var(--red); color: white; font-weight: 800; }

.hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 5vw;
  align-items: center;
  padding: 7vw 5vw 6vw;
  overflow: hidden;
  background: linear-gradient(180deg, #fff 0%, #fbfcfe 100%);
}
.eyebrow { margin: 0 0 14px; text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 900; color: var(--red); }
h1, h2, h3 { color: var(--navy); letter-spacing: -.045em; line-height: 1.02; }
h1 { margin: 0; max-width: 700px; font-size: clamp(48px, 6.3vw, 92px); font-weight: 900; }
h2 { font-size: clamp(36px, 4.3vw, 64px); margin: 0; font-weight: 900; }
h3 { font-size: 26px; margin: 0 0 10px; }
.hero-text { max-width: 660px; margin: 28px 0; font-size: clamp(18px, 2vw, 23px); color: #475467; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.hero-meta span { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--navy); font-weight: 700; font-size: 13px; background: white; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 52px; padding: 0 22px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; }
.button.primary { background: var(--red); color: white; }
.button.secondary { background: white; color: var(--navy); border-color: #cfd5df; }
.button:hover { transform: translateY(-1px); }
.price-row { display: flex; align-items: baseline; gap: 14px; margin-top: 24px; }
.price { color: var(--navy); font-weight: 900; font-size: 28px; letter-spacing: -.03em; }
.price-note { color: var(--muted); font-size: 13px; }

.hero-visual { position: relative; min-height: 520px; display: grid; place-items: center; }
.dock-line { position: absolute; width: 92%; height: 20px; background: #c9ced8; bottom: 145px; right: -12%; border-radius: 4px; transform: rotate(-4deg); box-shadow: 0 5px 0 #9ea7b4; }
.product-cylinder {
  position: relative;
  width: min(760px, 92%);
  aspect-ratio: 7.5 / 1;
  border-radius: 999px;
  transform: rotate(-8deg);
  background: linear-gradient(180deg, #222b3a 0%, #0b0f15 42%, #030506 100%);
  box-shadow: 0 40px 60px rgba(7,31,85,.22), inset 0 4px 7px rgba(255,255,255,.12);
}
.product-cylinder:after { content:""; position:absolute; inset: 10% 1.4%; border-top: 2px solid rgba(255,255,255,.13); border-radius: 999px; }
.valve { position:absolute; left: 13%; top: -14%; width: 42px; height: 42px; border-radius: 50%; background:#131b29; border: 5px solid #596274; box-shadow: inset 0 0 0 5px #0b0f15; }
.product-print { position:absolute; inset: 0; display:flex; flex-direction:column; align-items:center; justify-content:center; color:white; transform: rotate(0deg); text-shadow: 0 1px 0 rgba(0,0,0,.3); }
.product-print span { font-size: clamp(20px, 3vw, 42px); font-weight: 900; font-style: italic; letter-spacing: -.06em; }
.product-print span b { color: #f33; }
.product-print small { font-weight: 900; letter-spacing: .18em; font-size: 12px; color: #dce4ef; }
.ring { position:absolute; top: 92%; width: 26px; height: 26px; border: 5px solid #b9c0cb; border-radius: 50%; background: #0b0f15; box-shadow: 0 4px 6px rgba(0,0,0,.25); }
.ring-1 { left: 5%; }.ring-2 { left: 35%; }.ring-3 { left: 65%; }.ring-4 { right: 5%; }
.visual-caption { position:absolute; bottom: 36px; right: 8%; color: var(--muted); font-weight: 700; font-size: 13px; }

.proof-strip { display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.proof-strip div { padding: 32px 3vw; border-right:1px solid var(--line); }
.proof-strip div:last-child { border-right:0; }
.proof-strip strong { display:block; color:var(--navy); font-size:30px; font-weight:900; }
.proof-strip span { display:block; color:var(--muted); font-size:13px; margin-top:5px; }

.section { padding: 8vw 5vw; }
.split { display:grid; grid-template-columns: 1fr 1fr; gap: 8vw; align-items:start; }
.body-copy { max-width:680px; font-size:20px; color:#475467; }
.body-copy p:first-child { margin-top:0; }

.feature-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.feature-card { min-height:300px; padding:44px 34px; background:white; }
.feature-number { display:inline-block; margin-bottom:70px; color:var(--red); font-weight:900; font-size:13px; letter-spacing:.12em; }
.feature-card p { color:var(--muted); margin-bottom:0; }

.specs-section { display:grid; grid-template-columns: .75fr 1.25fr; gap:8vw; background:var(--navy); color:white; }
.specs-section h2 { color:white; }
.spec-table { margin:0; }
.spec-table div { display:grid; grid-template-columns:1fr 1fr; gap:20px; padding:22px 0; border-bottom:1px solid rgba(255,255,255,.16); }
.spec-table dt { color:#aebbd5; }
.spec-table dd { margin:0; font-weight:800; }

.logo-section { display:grid; grid-template-columns:1fr 1fr; gap:7vw; padding:8vw 5vw; align-items:center; }
.logo-panel { min-height:480px; display:grid; place-items:center; background:#f5f7fa; border-radius:var(--radius); overflow:hidden; }
.logo-panel img { width:min(82%, 560px); mix-blend-mode:multiply; }
.logo-copy p:last-child { max-width:650px; color:var(--muted); font-size:19px; }

.faq-section { display:grid; grid-template-columns:.75fr 1.25fr; gap:8vw; background:#f8f9fb; }
.faq-list details { border-bottom:1px solid #d9dee7; padding:24px 0; }
.faq-list summary { list-style:none; cursor:pointer; color:var(--navy); font-weight:800; font-size:19px; }
.faq-list summary::-webkit-details-marker { display:none; }
.faq-list p { color:var(--muted); max-width:760px; }

.cta-section { margin:5vw; padding:5vw; border-radius:var(--radius); background:var(--red); color:white; display:flex; align-items:flex-end; justify-content:space-between; gap:40px; }
.cta-section .eyebrow { color:#ffd1d4; }
.cta-section h2 { color:white; max-width:760px; }
.cta-buy { display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end; }
.cta-buy .price { color:white; }
.button.light { background:white; color:var(--red); }

.site-footer { padding:60px 5vw; background:#07142e; color:white; display:grid; grid-template-columns:2fr 1fr 1fr; gap:50px; }
.footer-brand { font-size:24px; font-weight:900; letter-spacing:-.04em; }
.site-footer p, .site-footer a, .footer-link { color:#aebbd5; }
.site-footer h4 { margin:0 0 14px; }
.site-footer a, .footer-link { display:block; margin:7px 0; }
.footer-link { border:0; padding:0; background:none; text-align:left; }

.modal { position:fixed; inset:0; z-index:100; display:none; }
.modal.open { display:grid; place-items:center; }
.modal-backdrop { position:absolute; inset:0; background:rgba(2,9,24,.72); backdrop-filter:blur(6px); }
.modal-card { position:relative; width:min(620px, 92vw); padding:38px; border-radius:24px; background:white; box-shadow:0 30px 80px rgba(0,0,0,.28); }
.modal-close { position:absolute; top:16px; right:18px; border:0; background:#f3f4f6; width:38px; height:38px; border-radius:50%; font-size:24px; }
.checkout-box { margin-top:26px; padding:20px; border-radius:18px; background:#f6f7f9; display:flex; gap:20px; align-items:center; justify-content:space-between; }
.checkout-help, .legal-note { color:var(--muted); font-size:14px; }
.checkout-help a { color:var(--blue); font-weight:800; }
.legal-card p { color:#475467; }

@media (max-width: 1000px) {
  .site-header { grid-template-columns: 1fr auto; }
  .main-nav { display:none; }
  .hero { grid-template-columns:1fr; padding-top:80px; }
  .hero-visual { min-height:430px; }
  .proof-strip, .feature-grid { grid-template-columns:repeat(2,1fr); }
  .split, .specs-section, .logo-section, .faq-section { grid-template-columns:1fr; }
  .logo-panel { min-height:360px; }
}

@media (max-width: 640px) {
  .site-header { padding:0 18px; min-height:68px; }
  .brand-name { display:none; }
  .buy-small { display:none; }
  .header-actions { gap:6px; }
  .hero { padding:58px 22px 46px; }
  h1 { font-size:48px; }
  h2 { font-size:38px; }
  .hero-visual { min-height:320px; }
  .product-cylinder { width:115%; }
  .visual-caption { display:none; }
  .proof-strip, .feature-grid { grid-template-columns:1fr; }
  .proof-strip div, .feature-card { border-right:0; }
  .section, .logo-section { padding:70px 22px; }
  .cta-section { margin:22px; padding:40px 26px; align-items:flex-start; flex-direction:column; }
  .site-footer { grid-template-columns:1fr; padding:50px 22px; }
  .checkout-box { flex-direction:column; align-items:stretch; }
  .price-row { flex-direction:column; gap:4px; }
}

/* Order information */
.order-info { background: var(--soft); }
#checkout-link[aria-disabled="true"] { opacity: .65; cursor: default; }