:root {
  --ink: #10243e;
  --muted: #5e7188;
  --navy: #0e315d;
  --blue: #1769d2;
  --blue-2: #4c9dec;
  --ice: #eaf6ff;
  --pale: #f6fbff;
  --white: #ffffff;
  --line: rgba(16, 49, 93, 0.14);
  --shadow: 0 24px 60px rgba(17, 75, 133, 0.13);
  --radius: 26px;
}

* { 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: 1.6;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 64px;
  height: 44px;
  border-radius: 12px;
  color: white;
  font-weight: 800;
  letter-spacing: .06em;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  box-shadow: 0 10px 24px rgba(23,105,210,.22);
}
.brand-copy { display: grid; line-height: 1.15; }
.brand-copy strong { font-size: .82rem; letter-spacing: .09em; text-transform: uppercase; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: .72rem; }
.main-nav { display: flex; align-items: center; gap: 28px; font-size: .95rem; }
.main-nav a:hover { color: var(--blue); }
.nav-cta { padding: 10px 17px; border: 1px solid var(--line); border-radius: 999px; background: var(--white); }
.menu-button { display: none; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  display: grid;
  align-items: center;
  background:
    radial-gradient(circle at 78% 20%, rgba(82, 174, 255, .22), transparent 28%),
    linear-gradient(180deg, #f8fcff 0%, #edf8ff 66%, #ffffff 100%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 70px; padding-block: 100px; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}
h1, h2, h3 { margin-top: 0; line-height: 1.08; }
h1 { margin-bottom: 24px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(3.4rem, 7vw, 6.5rem); font-weight: 500; letter-spacing: -.05em; }
h2 { margin-bottom: 18px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.2rem, 4.2vw, 4rem); font-weight: 500; letter-spacing: -.035em; }
h3 { font-size: 1.25rem; }
.hero-lead, .body-large { max-width: 680px; color: var(--muted); font-size: 1.18rem; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 22px; border-radius: 999px; font-weight: 750; }
.button-primary { color: white; background: linear-gradient(135deg, var(--navy), var(--blue)); box-shadow: 0 14px 30px rgba(23,105,210,.24); }
.button-secondary { color: var(--navy); border: 1px solid var(--line); background: rgba(255,255,255,.75); }
.trust-row { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 36px; color: var(--muted); font-size: .86rem; }
.trust-row span::before { content: "•"; margin-right: 8px; color: var(--blue); }

.hero-visual { position: relative; min-height: 480px; display: grid; place-items: center; }
.glass-panel {
  width: min(460px, 100%);
  min-height: 460px;
  padding: 48px;
  display: grid;
  place-items: center;
  text-align: center;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 44px;
  background: linear-gradient(145deg, rgba(255,255,255,.78), rgba(226,244,255,.58));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.glass-panel p { max-width: 300px; color: var(--muted); }
.seal {
  width: 190px; height: 190px;
  display: grid; place-items: center;
  border: 1px solid rgba(23,105,210,.45);
  border-radius: 50%;
  background: rgba(255,255,255,.67);
  box-shadow: inset 0 0 0 8px rgba(23,105,210,.045), 0 18px 44px rgba(23,105,210,.14);
}
.seal strong { font-family: Georgia, serif; font-size: 3.4rem; color: var(--navy); line-height: 1; }
.seal-small { font-size: .58rem; letter-spacing: .16em; color: var(--blue); }
.molecule { position: absolute; inset: 44px auto auto 18px; width: 150px; height: 230px; transform: rotate(-12deg); opacity: .9; }
.node { position: absolute; width: 25px; height: 25px; border-radius: 50%; background: radial-gradient(circle at 32% 28%, #bde7ff, var(--blue) 48%, var(--navy)); box-shadow: 0 8px 18px rgba(23,105,210,.25); }
.bond { position: absolute; width: 64px; height: 5px; border-radius: 8px; background: var(--blue); transform-origin: left center; }
.n1{left:12px;top:18px}.b1{left:32px;top:35px;transform:rotate(38deg)}
.n2{left:69px;top:61px}.b2{left:85px;top:78px;transform:rotate(103deg)}
.n3{left:72px;top:127px}.b3{left:82px;top:145px;transform:rotate(142deg)}
.n4{left:29px;top:173px}.b4{left:45px;top:184px;transform:rotate(28deg)}
.n5{left:92px;top:208px}

.section { padding: 110px 0; }
.section-heading { max-width: 760px; margin-bottom: 48px; }
.section-heading > p:last-child { color: var(--muted); font-size: 1.08rem; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.info-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 12px 32px rgba(17,75,133,.06); }
.card-number { display: inline-block; margin-bottom: 42px; color: var(--blue); font-weight: 800; letter-spacing: .12em; }
.info-card p { color: var(--muted); }

.section-tint { background: linear-gradient(135deg, #f2f9ff, #e6f4ff); }
.standards-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.standards-list { display: grid; gap: 12px; }
.standards-list div { display: grid; gap: 4px; padding: 20px 22px; border: 1px solid rgba(23,105,210,.13); border-radius: 18px; background: rgba(255,255,255,.72); }
.standards-list span { color: var(--muted); }

.product-section { background: var(--white); }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.product-card { padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: 0 12px 34px rgba(17,75,133,.07); }
.label-preview { min-height: 250px; padding: 26px; display: grid; align-content: center; border-radius: 18px; text-align: center; }
.label-preview span, .label-preview small { letter-spacing: .14em; }
.label-preview strong { font-family: Georgia, serif; font-size: 4rem; line-height: 1; }
.product-card h3 { margin: 22px 8px 6px; }
.product-card > p { margin: 0 8px 12px; color: var(--muted); }
.navy .label-preview { color: white; background: linear-gradient(145deg, #071a31, #0e315d); }
.cobalt .label-preview { color: white; background: linear-gradient(145deg, #0f4fa8, #2081ee); }
.ice .label-preview { color: #0c223d; background: linear-gradient(145deg, #d9f2ff, #9edbff); }
.disclaimer { margin-top: 28px; color: var(--muted); font-size: .82rem; }

.contact-section { padding-top: 40px; }
.contact-panel { padding: 58px; display: flex; align-items: center; justify-content: space-between; gap: 40px; border-radius: 34px; color: white; background: linear-gradient(135deg, var(--navy), var(--blue)); box-shadow: var(--shadow); }
.contact-panel p { color: rgba(255,255,255,.78); }
.contact-panel .button-primary { color: var(--navy); background: white; }

.site-footer { padding: 42px 0; border-top: 1px solid var(--line); }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; color: var(--muted); }
.footer-grid strong { color: var(--navy); font-size: 1.5rem; }
.footer-grid p { margin: 4px 0 0; }

@media (max-width: 900px) {
  .hero-grid, .standards-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 30px; }
  .hero-visual { min-height: 430px; }
  .card-grid, .product-grid { grid-template-columns: 1fr; }
  .main-nav { display: none; position: absolute; top: 78px; left: 20px; right: 20px; padding: 20px; flex-direction: column; align-items: stretch; border: 1px solid var(--line); border-radius: 20px; background: white; box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .menu-button { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 9px 15px; background: white; color: var(--navy); }
  .contact-panel { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 560px) {
  .brand-copy { display: none; }
  .hero { min-height: auto; }
  .hero-grid { padding-block: 72px; }
  h1 { font-size: 3.6rem; }
  .glass-panel { min-height: 390px; padding: 30px; }
  .molecule { transform: scale(.8) rotate(-12deg); transform-origin: top left; }
  .section { padding: 78px 0; }
  .contact-panel { padding: 38px 28px; }
  .footer-grid { flex-direction: column; }
}