:root {
  --ink: #07131d;
  --ink-soft: #122333;
  --text: #183044;
  --muted: #627487;
  --line: #dce5eb;
  --surface: #f5f8fa;
  --white: #ffffff;
  --cyan: #18aeea;
  --cyan-deep: #087dad;
  --green: #55df55;
  --green-deep: #27a93d;
  --shadow: 0 20px 50px rgba(7, 31, 47, .12);
  --radius: 22px;
  --shell: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }
.shell { width: min(calc(100% - 40px), var(--shell)); margin-inline: auto; }
.section { padding: 110px 0; }
.sr-only { 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: -100px; z-index: 9999; background: var(--white); padding: 12px 16px; border-radius: 8px; box-shadow: var(--shadow); }
.skip-link:focus { top: 16px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  color: var(--white);
  transition: background .25s ease, box-shadow .25s ease, color .25s ease;
}
.site-header.scrolled { background: rgba(255,255,255,.94); color: var(--ink); box-shadow: 0 8px 28px rgba(5,20,31,.09); backdrop-filter: blur(15px); }
.header-inner { height: 86px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 11px; line-height: 1; }
.brand-mark { width: 54px; height: 54px; display: grid; place-items: center; overflow: hidden; border: 2px solid rgba(255,255,255,.42); border-radius: 50%; background: var(--white); box-shadow: 0 7px 22px rgba(0,0,0,.18); }
.site-header.scrolled .brand-mark { border-color: #cbd6dd; }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand strong { display: block; font-size: 18px; letter-spacing: .08em; }
.brand small { display: block; margin-top: 6px; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; opacity: .66; }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: 14px; font-weight: 700; }
.site-nav > a:not(.nav-cta) { opacity: .78; transition: opacity .2s; }
.site-nav > a:not(.nav-cta):hover { opacity: 1; }
.nav-cta { padding: 11px 18px; border-radius: 999px; background: var(--white); color: var(--ink); }
.site-header.scrolled .nav-cta { background: var(--ink); color: var(--white); }
.menu-button { display: none; border: 0; background: transparent; padding: 8px; }
.menu-button span:not(.sr-only) { display: block; width: 26px; height: 2px; margin: 5px 0; background: currentColor; transition: transform .2s, opacity .2s; }

.hero { position: relative; overflow: hidden; min-height: 810px; padding: 155px 0 90px; color: var(--white); background: radial-gradient(circle at 73% 22%, #12384b 0, #091b29 38%, #061019 72%); }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 58px 58px; mask-image: linear-gradient(to bottom, black, transparent 92%); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(20px); opacity: .25; }
.hero-glow-one { width: 430px; height: 430px; right: -90px; top: 100px; background: var(--cyan); }
.hero-glow-two { width: 260px; height: 260px; left: 38%; bottom: -120px; background: var(--green); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .95fr 1.05fr; align-items: center; gap: 70px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; color: var(--cyan-deep); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .16em; }
.eyebrow span { width: 24px; height: 2px; background: currentColor; }
.hero .eyebrow { color: var(--green); }
.hero h1 { margin: 0; max-width: 650px; font-size: clamp(48px, 6vw, 80px); line-height: .98; letter-spacing: -.055em; }
.hero h1 em { color: var(--cyan); font-style: normal; }
.hero-copy > p { max-width: 630px; margin: 28px 0 0; color: #b7c8d4; font-size: 19px; line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 24px; border: 1px solid transparent; border-radius: 999px; font-size: 14px; font-weight: 800; transition: transform .2s, box-shadow .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--ink); background: linear-gradient(135deg, var(--green), #9cf373); box-shadow: 0 12px 32px rgba(85,223,85,.2); }
.button-secondary { color: var(--white); border-color: rgba(255,255,255,.22); background: rgba(255,255,255,.06); }
.products-section .button-secondary { color: var(--ink); border-color: var(--line); background: var(--white); }
.trust-row { display: flex; gap: 34px; margin-top: 44px; padding-top: 30px; border-top: 1px solid rgba(255,255,255,.12); }
.trust-row div { display: flex; flex-direction: column; }
.trust-row strong { font-size: 21px; color: var(--white); }
.trust-row span { color: #8fa5b5; font-size: 12px; }
.hero-visual { position: relative; height: 570px; }
.hero-card { position: absolute; overflow: hidden; border: 1px solid rgba(255,255,255,.14); border-radius: 28px; background: #101b22; box-shadow: 0 30px 80px rgba(0,0,0,.38); }
.hero-card img { width: 100%; height: 100%; object-fit: cover; }
.hero-card-main { width: 66%; height: 72%; left: 17%; top: 13%; z-index: 2; transform: rotate(-2deg); }
.hero-card-top { width: 39%; height: 38%; right: 0; top: 0; transform: rotate(5deg); }
.hero-card-bottom { width: 35%; height: 42%; left: 0; bottom: 0; transform: rotate(4deg); }
.floating-label { position: absolute; right: 2%; bottom: 9%; z-index: 4; display: flex; align-items: center; gap: 9px; padding: 12px 16px; border: 1px solid rgba(255,255,255,.16); border-radius: 999px; background: rgba(5,16,25,.75); box-shadow: var(--shadow); backdrop-filter: blur(12px); font-size: 12px; font-weight: 800; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 6px rgba(85,223,85,.13); }

.brand-strip { padding: 29px 0; border-bottom: 1px solid var(--line); background: var(--white); }
.brand-strip .shell { display: flex; align-items: center; gap: 40px; }
.brand-strip p { flex: 0 0 auto; margin: 0; color: var(--muted); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .13em; }
.compatibility-list { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 22px; overflow: hidden; }
.compatibility-list span { color: #83919d; font-size: 14px; font-weight: 800; white-space: nowrap; }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 46px; }
.section-heading h2 { margin: 0; max-width: 750px; color: var(--ink); font-size: clamp(38px, 5vw, 58px); line-height: 1.05; letter-spacing: -.045em; }
.section-heading > p { max-width: 410px; margin: 0; color: var(--muted); }
.section-heading.centered { display: block; max-width: 780px; margin-inline: auto; text-align: center; }
.section-heading.centered .eyebrow { justify-content: center; }
.section-heading.centered p { max-width: 650px; margin: 20px auto 0; }

.products-section { background: var(--surface); }
.product-toolbar { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; }
.search-box { position: relative; flex: 1; min-width: 260px; }
.search-box svg { position: absolute; top: 50%; left: 17px; width: 20px; fill: none; stroke: var(--muted); stroke-width: 1.8; transform: translateY(-50%); }
.search-box input { width: 100%; height: 48px; padding: 0 18px 0 48px; border: 1px solid var(--line); border-radius: 999px; outline: none; color: var(--ink); background: var(--white); transition: border .2s, box-shadow .2s; }
.search-box input:focus { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(24,174,234,.12); }
.filter-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-button { height: 44px; padding: 0 16px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: var(--white); font-size: 12px; font-weight: 800; }
.filter-button:hover, .filter-button.active { border-color: var(--ink); color: var(--white); background: var(--ink); }
.product-count { margin: 22px 0 18px; color: var(--muted); font-size: 13px; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.product-card:hover { transform: translateY(-6px); border-color: #c6d6df; box-shadow: var(--shadow); }
.product-image { position: relative; aspect-ratio: 1 / .83; overflow: hidden; background: #e9eff3; }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.product-card:hover .product-image img { transform: scale(1.035); }
.product-tag { position: absolute; left: 14px; top: 14px; padding: 7px 10px; border-radius: 999px; color: var(--ink); background: rgba(255,255,255,.88); backdrop-filter: blur(8px); font-size: 10px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.product-content { padding: 22px; }
.product-content h3 { min-height: 54px; margin: 0; color: var(--ink); font-size: 18px; line-height: 1.35; letter-spacing: -.018em; }
.product-content p { min-height: 50px; margin: 10px 0 19px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.product-link { display: inline-flex; align-items: center; gap: 8px; color: var(--cyan-deep); font-size: 13px; font-weight: 900; }
.product-link span { transition: transform .2s; }
.product-card:hover .product-link span { transform: translateX(4px); }
.stretched-link::after { content: ""; position: absolute; inset: 0; }
.empty-state { padding: 70px 20px; text-align: center; border: 1px dashed #bccbd5; border-radius: var(--radius); background: var(--white); }
.empty-state h3 { margin: 0 0 8px; color: var(--ink); font-size: 26px; }
.empty-state p { margin: 0 0 22px; color: var(--muted); }

.why-section { background: var(--white); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); transition: transform .2s, box-shadow .2s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon { width: 50px; height: 50px; display: grid; place-items: center; margin-bottom: 23px; border-radius: 15px; color: var(--cyan-deep); background: #e8f7fc; }
.feature-icon svg { width: 25px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 { margin: 0 0 10px; color: var(--ink); font-size: 18px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }

.story-section { overflow: hidden; color: var(--white); background: var(--ink); }
.story-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 90px; }
.story-visual { position: relative; min-height: 560px; }
.story-image-wrap { position: absolute; inset: 0 60px 40px 0; overflow: hidden; border-radius: 28px; background: var(--white); }
.story-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.story-stat { position: absolute; right: 0; bottom: 0; width: 220px; padding: 24px; border: 1px solid rgba(255,255,255,.15); border-radius: 18px; background: linear-gradient(135deg, #0f3347, #0c202d); box-shadow: var(--shadow); }
.story-stat strong { display: block; color: var(--green); font-size: 37px; line-height: 1; }
.story-stat span { display: block; margin-top: 8px; color: #b6c7d3; font-size: 12px; }
.story-copy .eyebrow { color: var(--green); }
.story-copy h2 { margin: 0 0 26px; font-size: clamp(38px, 5vw, 58px); line-height: 1.05; letter-spacing: -.045em; }
.story-copy p { color: #a9bdca; }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 12px; color: var(--green); font-weight: 800; }

.reviews-section { background: var(--surface); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.review-card { margin: 0; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.review-card.featured { border-color: var(--cyan); box-shadow: 0 18px 45px rgba(24,174,234,.12); }
.stars { color: #f2aa25; letter-spacing: .12em; font-size: 14px; }
.review-card p { margin: 22px 0; color: var(--ink); font-size: 18px; line-height: 1.55; }
.review-card footer { color: var(--muted); font-size: 12px; font-weight: 700; }

.cta-section { padding: 90px 0; background: var(--white); }
.cta-card { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 58px 62px; border-radius: 30px; color: var(--white); background: linear-gradient(120deg, #0b2d40, #087ca9); box-shadow: var(--shadow); }
.cta-card h2 { margin: 0; font-size: clamp(34px, 4.5vw, 52px); line-height: 1.05; letter-spacing: -.04em; }
.cta-card p { max-width: 680px; margin: 16px 0 0; color: #c5e0eb; }
.eyebrow.light { color: var(--green); }
.cta-actions { display: flex; flex-direction: column; gap: 10px; min-width: 190px; }
.button-light { color: var(--ink); background: var(--white); }
.button-outline-light { color: var(--white); border-color: rgba(255,255,255,.35); }

.site-footer { padding: 70px 0 26px; color: #a8bbc8; background: #050d13; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .7fr .7fr 1.1fr; gap: 55px; }
.footer-brand { color: var(--white); }
.footer-description { max-width: 300px; margin: 20px 0 0; font-size: 13px; }
.footer-grid h3 { margin: 0 0 16px; color: var(--white); font-size: 13px; text-transform: uppercase; letter-spacing: .1em; }
.footer-grid > div > a:not(.brand) { display: block; margin: 9px 0; font-size: 13px; }
.footer-grid > div > a:not(.brand):hover { color: var(--white); }
.footer-grid > div > p { font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; margin-top: 54px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: 11px; }
.footer-bottom p { margin: 0; }
.footer-bottom p:last-child { max-width: 610px; text-align: right; }
.back-to-top { position: fixed; right: 22px; bottom: 22px; z-index: 500; width: 44px; height: 44px; border: 0; border-radius: 50%; color: var(--white); background: var(--ink); box-shadow: var(--shadow); opacity: 0; pointer-events: none; transform: translateY(10px); transition: .2s; }
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero { padding-top: 140px; }
  .hero-visual { max-width: 700px; width: 100%; margin: 0 auto; height: 500px; }
  .brand-strip .shell { display: block; }
  .brand-strip p { margin-bottom: 16px; }
  .compatibility-list { overflow-x: auto; justify-content: flex-start; padding-bottom: 5px; }
  .product-toolbar { align-items: stretch; flex-direction: column; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .story-grid { gap: 50px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .shell { width: min(calc(100% - 28px), var(--shell)); }
  .section { padding: 78px 0; }
  .header-inner { height: 74px; }
  .menu-button { display: block; color: currentColor; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 74px 0 auto; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 18px 20px 26px; color: var(--ink); background: var(--white); box-shadow: 0 20px 30px rgba(4,20,30,.12); }
  .site-nav.open { display: flex; }
  .site-nav > a { padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .site-nav .nav-cta { margin-top: 14px; padding: 13px 18px; text-align: center; color: var(--white); background: var(--ink); border: 0; }
  .hero { min-height: auto; padding: 122px 0 70px; }
  .hero h1 { font-size: clamp(44px, 14vw, 64px); }
  .hero-copy > p { font-size: 17px; }
  .trust-row { gap: 18px; justify-content: space-between; }
  .trust-row strong { font-size: 17px; }
  .hero-visual { height: 390px; }
  .hero-card-main { width: 68%; height: 70%; }
  .hero-card-top { width: 39%; height: 36%; }
  .hero-card-bottom { width: 36%; height: 39%; }
  .floating-label { right: 0; bottom: 6%; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 18px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-content h3, .product-content p { min-height: 0; }
  .filter-buttons { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .filter-button { flex: 0 0 auto; }
  .feature-grid, .reviews-grid { grid-template-columns: 1fr; }
  .story-grid { grid-template-columns: 1fr; }
  .story-visual { min-height: 450px; }
  .story-image-wrap { right: 34px; }
  .story-stat { width: 190px; }
  .cta-card { display: block; padding: 42px 28px; }
  .cta-actions { margin-top: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-grid > div:first-child, .footer-grid > div:last-child { grid-column: 1 / -1; }
  .footer-bottom { display: block; }
  .footer-bottom p:last-child { margin-top: 10px; text-align: left; }
}

@media (max-width: 430px) {
  .brand small { display: none; }
  .hero-actions .button { width: 100%; }
  .trust-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .trust-row span { font-size: 10px; }
  .hero-visual { height: 335px; }
  .floating-label { font-size: 10px; }
  .feature-grid { grid-template-columns: 1fr; }
  .story-visual { min-height: 380px; }
  .story-stat { width: 170px; padding: 18px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div { grid-column: auto !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}