:root {
  --navy: #071d2b;
  --navy-2: #0b293b;
  --navy-3: #10354a;
  --cyan: #13c7c6;
  --cyan-soft: #8de8e7;
  --blue: #3d8ef7;
  --green: #65d79c;
  --white: #ffffff;
  --ink: #102431;
  --muted: #60737e;
  --surface: #f4f8fa;
  --line: #dce7eb;
  --shadow: 0 22px 70px rgba(4, 25, 38, .16);
  --radius: 24px;
  --content: 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;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
.skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 9999;
  transform: translateY(-160%); background: var(--white); color: var(--navy);
  padding: 10px 14px; border-radius: 8px; font-weight: 800;
}
.skip-link:focus { transform: none; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  min-height: 82px; padding: 14px max(24px, calc((100vw - var(--content))/2));
  display: grid; grid-template-columns: auto 1fr auto; gap: 32px; align-items: center;
  background: rgba(7, 29, 43, .96); color: var(--white);
  backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand { display: inline-flex; align-items: center; }
.brand img { width: 190px; height: auto; filter: brightness(0) invert(1); }
.site-header > nav { display: flex; justify-content: center; gap: 28px; font-size: 14px; font-weight: 700; }
.site-header > nav a { opacity: .86; transition: .2s ease; }
.site-header > nav a:hover { opacity: 1; color: var(--cyan-soft); }
.header-contact { display: flex; align-items: center; gap: 14px; font-size: 12px; }
.header-contact > span { opacity: .68; }
.header-contact-actions { display: flex; gap: 8px; }
.header-contact-link {
  padding: 8px 11px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px;
  font-weight: 800; transition: .2s ease;
}
.header-contact-link:hover { background: rgba(255,255,255,.1); }

.hero {
  position: relative; overflow: hidden; min-height: 650px;
  display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: 64px;
  padding: 92px max(24px, calc((100vw - var(--content))/2)) 86px;
  background: linear-gradient(135deg, var(--navy) 0%, #0a2638 54%, #0c3145 100%); color: var(--white);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(10px); pointer-events: none; }
.hero-glow-one { width: 520px; height: 520px; right: -180px; top: -180px; background: radial-gradient(circle, rgba(19,199,198,.24), rgba(19,199,198,0) 70%); }
.hero-glow-two { width: 420px; height: 420px; left: 35%; bottom: -280px; background: radial-gradient(circle, rgba(61,142,247,.18), rgba(61,142,247,0) 70%); }
.hero-copy, .hero-visual { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 14px; color: var(--cyan); text-transform: uppercase; letter-spacing: .14em; font-size: 12px; font-weight: 900; }
.hero h1, .section h2, .difference h2, .product-information h2, .contact h2 { letter-spacing: -.035em; line-height: 1.08; }
.hero h1 { margin: 0; max-width: 760px; font-size: clamp(42px, 5vw, 70px); }
.hero h1 span { color: var(--cyan-soft); }
.hero-text { max-width: 690px; margin: 24px 0 0; color: rgba(255,255,255,.78); font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 12px 20px; border-radius: 12px; font-weight: 850;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-large { min-height: 56px; padding: 15px 24px; }
.button-primary { color: #06292d; background: var(--cyan); box-shadow: 0 14px 36px rgba(19,199,198,.24); }
.button-primary:hover { background: #31d7d5; }
.button-ghost { color: var(--white); border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.045); }
.button-dark { color: var(--white); background: var(--navy); }
.trust-row { display: flex; flex-wrap: wrap; gap: 16px 22px; margin-top: 28px; color: rgba(255,255,255,.68); font-size: 13px; font-weight: 700; }

.hero-visual { min-height: 470px; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid rgba(141,232,231,.18); border-radius: 50%; }
.orbit-one { width: 430px; height: 430px; }
.orbit-two { width: 330px; height: 330px; }
.core-card {
  position: relative; z-index: 2; width: min(355px, 84vw); padding: 34px;
  border: 1px solid rgba(255,255,255,.16); border-radius: 30px;
  background: linear-gradient(145deg, rgba(255,255,255,.13), rgba(255,255,255,.06));
  box-shadow: 0 28px 90px rgba(0,0,0,.3); backdrop-filter: blur(18px);
}
.core-kicker { display: block; color: var(--cyan-soft); font-size: 12px; font-weight: 900; text-transform: uppercase; letter-spacing: .1em; }
.core-card > strong { display: block; margin-top: 8px; color: var(--white); font-size: 50px; letter-spacing: -.045em; }
.core-card > p { margin: 10px 0 22px; color: rgba(255,255,255,.72); }
.core-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.core-grid span { padding: 9px 10px; border-radius: 10px; background: rgba(255,255,255,.08); color: rgba(255,255,255,.88); font-size: 12px; font-weight: 800; }
.floating-card {
  position: absolute; z-index: 3; min-width: 170px; padding: 13px 15px;
  border: 1px solid rgba(255,255,255,.14); border-radius: 15px; background: rgba(8,35,51,.9);
  box-shadow: 0 18px 45px rgba(0,0,0,.22); backdrop-filter: blur(12px);
}
.floating-card b, .floating-card span { display: block; }
.floating-card b { color: var(--white); font-size: 13px; }
.floating-card span { color: rgba(255,255,255,.58); font-size: 11px; }
.floating-a { top: 50px; left: 0; }
.floating-b { top: 115px; right: -5px; }
.floating-c { bottom: 45px; left: 28px; }

.metrics {
  display: grid; grid-template-columns: repeat(3,1fr);
  max-width: var(--content); margin: -34px auto 0; position: relative; z-index: 5;
  background: var(--white); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow);
}
.metrics > div { padding: 25px 28px; }
.metrics > div + div { border-left: 1px solid var(--line); }
.metrics strong, .metrics span { display: block; }
.metrics strong { margin-bottom: 6px; color: var(--navy); font-size: 16px; }
.metrics span { color: var(--muted); font-size: 13px; }

.section, .product-information { max-width: var(--content); margin: 0 auto; padding: 104px 0; }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 48px; align-items: end; margin-bottom: 44px; }
.section-heading h2, .product-information h2 { margin: 0; font-size: clamp(34px, 4vw, 52px); color: var(--navy); }
.section-heading > p { margin: 0; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.service-card {
  position: relative; overflow: hidden; display: flex; flex-direction: column; min-height: 470px; padding: 28px;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 12px 34px rgba(7,29,43,.06);
}
.service-card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 4px; background: var(--cyan); }
.service-card.accent-blue::before { background: var(--blue); }
.service-card.accent-green::before { background: var(--green); }
.service-icon { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 15px; background: #e8fbfb; color: #087a7a; font-size: 13px; font-weight: 900; }
.accent-blue .service-icon { background: #eaf3ff; color: #236fca; }
.accent-green .service-icon { background: #eafaf1; color: #278254; }
.service-tag { margin: 20px 0 6px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; font-size: 11px; font-weight: 900; }
.service-card h3 { margin: 0; color: var(--navy); font-size: 24px; line-height: 1.2; }
.service-card > p:not(.service-tag) { color: var(--muted); }
.service-card ul { margin: 10px 0 24px; padding-left: 20px; color: #354c58; font-size: 14px; }
.service-card li + li { margin-top: 7px; }
.service-price { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); color: var(--navy); font-weight: 900; }

.difference {
  max-width: none; padding: 90px max(24px, calc((100vw - var(--content))/2));
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center;
  background: var(--surface);
}
.difference-copy h2 { margin: 0; color: var(--navy); font-size: clamp(34px, 4vw, 52px); }
.difference-copy > p:not(.eyebrow) { color: var(--muted); font-size: 17px; }
.steps { display: grid; gap: 12px; }
.steps article { display: grid; grid-template-columns: 54px 1fr; gap: 18px; padding: 21px; background: var(--white); border: 1px solid var(--line); border-radius: 18px; }
.steps article > span { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: var(--navy); color: var(--cyan-soft); font-weight: 900; }
.steps h3 { margin: 0 0 3px; color: var(--navy); font-size: 17px; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; }

.product-information-heading { max-width: 780px; margin-bottom: 38px; }
.product-information-heading > p:not(.eyebrow) { color: var(--muted); }
.product-information-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }
.product-information-card { padding: 23px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); }
.product-information-card h3 { margin: 0 0 8px; color: var(--navy); }
.product-information-card p { margin: 0; color: var(--muted); }
.product-information-card strong { color: var(--navy); }
.product-faq { margin-top: 46px; }
.product-faq > h3 { color: var(--navy); font-size: 26px; }
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; padding: 20px 34px 20px 0; position: relative; color: var(--navy); font-weight: 850; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 5px; top: 17px; font-size: 24px; color: var(--cyan); }
details[open] summary::after { content: "−"; }
details p { margin: -5px 0 20px; max-width: 850px; color: var(--muted); }

.contact {
  max-width: none; margin: 0; padding: 72px max(24px, calc((100vw - var(--content))/2));
  display: grid; grid-template-columns: 1fr auto; gap: 50px; align-items: center;
  background: linear-gradient(130deg, #0a2b3f, var(--navy)); color: var(--white);
}
.contact h2 { margin: 0; max-width: 800px; font-size: clamp(32px, 4vw, 50px); }
.contact > div > p:not(.eyebrow) { color: rgba(255,255,255,.7); }
.contact-actions { display: grid; gap: 10px; min-width: 220px; }
.contact .button-dark { border: 1px solid rgba(255,255,255,.2); }

.site-footer { padding: 60px max(24px, calc((100vw - var(--content))/2)) 26px; background: #051723; color: rgba(255,255,255,.72); }
.footer-grid { display: grid; grid-template-columns: 1.3fr .8fr .9fr .9fr; gap: 42px; }
.footer-brand img { width: 190px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 320px; }
.footer-contact-list, .footer-column, .social-links { display: grid; gap: 8px; }
.footer-column h2 { margin: 0 0 8px; color: var(--white); font-size: 14px; }
.footer-column a, .footer-contact-list a { font-size: 13px; }
.footer-column a:hover, .footer-contact-list a:hover { color: var(--cyan-soft); }
.footer-social p { margin: 0 0 10px; font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 48px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); font-size: 12px; }
.footer-bottom p { margin: 0; }
.footer-bottom nav { display: flex; gap: 18px; }

@media (max-width: 1100px) {
  .site-header { grid-template-columns: auto 1fr; }
  .header-contact { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 74px; }
  .hero-copy { max-width: 820px; }
  .hero-visual { min-height: 420px; }
  .metrics { margin-left: 24px; margin-right: 24px; }
  .section, .product-information { padding-left: 24px; padding-right: 24px; }
  .difference { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .site-header { position: relative; min-height: 70px; padding: 14px 20px; }
  .brand img { width: 164px; }
  .site-header > nav { display: none; }
  .hero { padding: 64px 20px 70px; gap: 34px; }
  .hero h1 { font-size: clamp(38px, 11vw, 54px); }
  .hero-text { font-size: 17px; }
  .hero-actions, .hero-actions .button { width: 100%; }
  .trust-row { display: grid; gap: 8px; }
  .hero-visual { min-height: 390px; }
  .orbit-one { width: 340px; height: 340px; }
  .orbit-two { width: 275px; height: 275px; }
  .core-card { width: min(310px, 86vw); padding: 27px; }
  .core-card > strong { font-size: 42px; }
  .floating-card { min-width: 145px; padding: 10px 12px; }
  .floating-a { left: -2px; top: 20px; }
  .floating-b { right: -2px; top: 86px; }
  .floating-c { left: 10px; bottom: 18px; }
  .metrics { grid-template-columns: 1fr; margin-top: -22px; }
  .metrics > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .section, .product-information { padding: 72px 20px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .cards, .product-information-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 0; }
  .difference { padding: 72px 20px; gap: 38px; }
  .steps article { grid-template-columns: 46px 1fr; padding: 17px; gap: 12px; }
  .contact { grid-template-columns: 1fr; padding: 64px 20px; gap: 28px; }
  .contact-actions { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .site-footer { padding: 52px 20px 24px; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
