:root {
  --ink: #07141d;
  --ink-soft: #112633;
  --paper: #f4f1ea;
  --paper-deep: #e8e4da;
  --blue: #38c9e8;
  --blue-deep: #0c719c;
  --line-dark: rgba(231, 242, 244, .19);
  --line-light: rgba(7, 20, 29, .18);
  --muted-dark: #b8c8ce;
  --muted-light: #52636b;
  --display: "Manrope", Arial, sans-serif;
  --mono: "DM Mono", "SFMono-Regular", Consolas, monospace;
  --max: 1440px;
  --pad: clamp(1.25rem, 4.5vw, 5.5rem);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--ink); color: var(--paper); font-family: var(--display); font-size: 16px; line-height: 1.55; overflow-x: hidden; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
button { font: inherit; }
img { display: block; max-width: 100%; }

.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; top: 1rem; left: 1rem; z-index: 100; background: var(--blue); color: var(--ink); padding: .75rem 1rem; font-weight: 800; transform: translateY(-180%); transition: transform .2s ease; }
.skip-link:focus { transform: translateY(0); }

.site-header { min-height: 82px; max-width: var(--max); margin: 0 auto; padding: 1.25rem var(--pad); display: flex; align-items: center; justify-content: space-between; gap: 2rem; position: relative; z-index: 20; background: var(--ink); }
.brand { display: inline-flex; align-items: center; gap: .58rem; text-decoration: none; font-size: .72rem; font-weight: 800; letter-spacing: .14em; line-height: 1.05; }
.brand img { width: 2.25rem; height: 2.25rem; object-fit: contain; }
.brand small { display: inline-block; margin-top: .22rem; color: var(--blue); font-size: .52rem; letter-spacing: .19em; }
.primary-nav { display: flex; align-items: center; gap: clamp(1.1rem, 2.6vw, 2.85rem); font-family: var(--mono); font-size: .68rem; letter-spacing: .03em; }
.primary-nav a { color: var(--muted-dark); text-decoration: none; transition: color .2s ease; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--paper); }
.nav-toggle { display: none; border: 0; background: transparent; color: var(--paper); padding: .5rem; width: 42px; height: 42px; cursor: pointer; }
.nav-toggle span:not(.sr-only) { display: block; width: 24px; height: 1px; margin: 6px auto; background: currentColor; }

section { position: relative; }
.section-dark { background: var(--ink); }
.section-light { color: var(--ink); background: var(--paper); }
.hero { min-height: calc(100svh - 82px); border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.hero::after { content: ""; position: absolute; right: 15%; top: 0; width: 1px; height: 100%; background: linear-gradient(180deg, transparent, var(--line-dark) 12%, var(--line-dark) 86%, transparent); }
.hero-grid { max-width: var(--max); min-height: min(790px, calc(100svh - 82px)); margin: 0 auto; padding: clamp(3rem, 8vw, 8rem) var(--pad) 7rem; display: grid; grid-template-columns: .62fr 1.18fr .82fr; gap: clamp(2rem, 4vw, 5rem); align-items: center; }
.eyebrow { margin: 0; color: var(--blue); font-family: var(--mono); font-size: .65rem; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow.ink { color: var(--blue-deep); }
.hero-copy { position: relative; z-index: 1; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 1.75rem; max-width: 8ch; font-size: clamp(3.65rem, 8.1vw, 8.9rem); font-weight: 600; line-height: .94; letter-spacing: -.076em; }
h1 span { display: block; }
h1 span:last-child { color: var(--blue); }
.hero-lede { max-width: 37rem; margin-bottom: 1.8rem; color: var(--muted-dark); font-size: clamp(1rem, 1.6vw, 1.25rem); line-height: 1.7; }
.text-link { display: inline-flex; align-items: center; gap: .65rem; padding-bottom: .4rem; border-bottom: 1px solid currentColor; font-family: var(--mono); font-size: .72rem; letter-spacing: .035em; text-decoration: none; transition: color .2s ease, gap .2s ease; }
.text-link:hover { gap: .95rem; }
.text-link.light { color: var(--paper); }
.text-link.light:hover { color: var(--blue); }
.flight-study { align-self: stretch; min-height: 380px; display: flex; flex-direction: column; justify-content: center; position: relative; }
.flight-study::before { content: ""; position: absolute; inset: 14% -36% 8% 0; background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px); background-size: 46px 46px; mask-image: linear-gradient(90deg, transparent, black 25%, black 75%, transparent); opacity: .55; }
.study-label, .study-caption { position: relative; z-index: 1; color: var(--muted-dark); font-family: var(--mono); font-size: .61rem; letter-spacing: .1em; text-transform: uppercase; }
.study-caption { align-self: flex-end; color: var(--blue); writing-mode: vertical-rl; transform: rotate(180deg); }
.mark-wrap { position: relative; z-index: 1; margin: .5rem 0 -1.1rem -1.25rem; transform: rotate(-5deg); }
.mark-wrap img { width: min(100%, 365px); filter: drop-shadow(0 18px 30px rgba(0,0,0,.28)); }
.scroll-cue { position: absolute; right: var(--pad); bottom: 1.45rem; display: flex; align-items: center; gap: .8rem; color: var(--muted-dark); font-family: var(--mono); font-size: .57rem; letter-spacing: .1em; text-transform: uppercase; }
.scroll-cue i { display: block; width: 3rem; height: 1px; background: var(--blue); }

.section-index { max-width: var(--max); margin: 0 auto; padding: 1.2rem var(--pad); display: flex; align-items: center; gap: .8rem; color: var(--muted-light); border-bottom: 1px solid var(--line-light); font-family: var(--mono); font-size: .6rem; letter-spacing: .08em; text-transform: uppercase; }
.section-index span:first-child { color: var(--blue-deep); }
.section-index.inverse { color: var(--muted-dark); border-color: var(--line-dark); }
.section-index.inverse span:first-child { color: var(--blue); }
.company-intro { padding-bottom: clamp(4.5rem, 11vw, 10rem); }
.company-layout, .contact-layout { max-width: var(--max); margin: 0 auto; padding: clamp(4rem, 9vw, 8rem) var(--pad) 0; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(250px, .74fr); gap: clamp(2rem, 9vw, 12rem); }
h2 { margin-bottom: 0; font-size: clamp(2.3rem, 5.1vw, 5.7rem); font-weight: 600; line-height: .98; letter-spacing: -.06em; }
.company-note { align-self: end; padding-bottom: .7rem; border-bottom: 1px solid var(--line-light); color: #263941; font-size: clamp(1rem, 1.6vw, 1.22rem); line-height: 1.65; }
.location { margin: 1.75rem 0 0; color: var(--blue-deep); font-family: var(--mono); font-size: .66rem; letter-spacing: .06em; text-transform: uppercase; }

.products { padding-bottom: clamp(4rem, 8vw, 8rem); }
.products-header { max-width: var(--max); margin: 0 auto; padding: clamp(4rem, 7.5vw, 7rem) var(--pad) clamp(3rem, 7vw, 6rem); display: grid; grid-template-columns: .65fr 1.35fr; gap: 2rem; }
.products-header h2 { max-width: 14ch; color: var(--paper); font-size: clamp(2rem, 4.5vw, 4.9rem); }
.product-entry { max-width: var(--max); margin: 0 auto; padding: 2.1rem var(--pad) clamp(3.8rem, 7vw, 6.8rem); display: grid; grid-template-columns: 5rem 1fr; border-top: 1px solid var(--line-dark); }
.product-entry:last-child { border-bottom: 1px solid var(--line-dark); }
.product-number { color: var(--blue); font-family: var(--mono); font-size: .7rem; }
.product-brow { grid-column: 2; margin-bottom: clamp(2.4rem, 4vw, 4.2rem); color: var(--muted-dark); font-family: var(--mono); font-size: .63rem; letter-spacing: .1em; text-transform: uppercase; }
.product-brow span { color: var(--blue); margin: 0 .3rem; }
.product-content { grid-column: 2; display: grid; grid-template-columns: minmax(210px, .82fr) minmax(280px, 1fr); gap: clamp(2rem, 7vw, 9rem); }
.product-content h3 { margin-bottom: .45rem; color: var(--paper); font-size: clamp(2.5rem, 5.6vw, 6rem); font-weight: 600; line-height: .9; letter-spacing: -.07em; }
.product-tagline { color: var(--blue); font-size: 1.05rem; }
.product-detail { color: var(--muted-dark); }
.product-detail > p:first-child { color: var(--paper); font-size: 1.1rem; line-height: 1.68; }
.product-topics { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: 1.3rem 0 1.5rem; }
.product-topics li { padding: .35rem .6rem; border: 1px solid rgba(56,201,232,.5); color: var(--blue); font-family: var(--mono); font-size: .58rem; letter-spacing: .08em; text-transform: uppercase; }
.product-status { font-size: .87rem; line-height: 1.65; }
.feature-list { margin: 1.4rem 0; padding: 0; list-style: none; }
.feature-list li { position: relative; margin: 0 0 .9rem; padding-left: 1.1rem; font-size: .9rem; line-height: 1.6; }
.feature-list li::before { content: "+"; position: absolute; left: 0; color: var(--blue); }
.product-detail .text-link { margin-top: 1.2rem; }

.contact { padding-bottom: clamp(4rem, 8vw, 8rem); }
.contact-panel { border-top: 1px solid var(--line-light); padding-top: 1.25rem; color: #263941; font-size: 1.05rem; }
.contact-email { display: inline-flex; align-items: baseline; gap: .6rem; margin: 2.2rem 0; color: var(--ink); font-size: clamp(1.25rem, 2.4vw, 2rem); font-weight: 700; letter-spacing: -.035em; text-decoration: none; border-bottom: 2px solid var(--blue-deep); transition: color .2s ease; }
.contact-email:hover { color: var(--blue-deep); }
.contact-name { margin: 0 0 2rem; color: var(--blue-deep); font-family: var(--mono); font-size: .65rem; letter-spacing: .08em; text-transform: uppercase; }
.contact-safety { max-width: 47ch; color: var(--muted-light); font-size: .82rem; }

.site-footer { max-width: var(--max); margin: 0 auto; min-height: 150px; padding: 2.2rem var(--pad); display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; color: var(--muted-dark); border-top: 1px solid var(--line-dark); }
.footer-brand { color: var(--paper); }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem 1.7rem; font-family: var(--mono); font-size: .61rem; }
.footer-links a { color: var(--muted-dark); text-decoration: none; }
.footer-links a:hover { color: var(--blue); }
.site-footer > p { margin: 0; font-family: var(--mono); font-size: .58rem; white-space: nowrap; }

.policy-page { color: var(--ink); background: var(--paper); }
.policy-page .site-header { background: var(--ink); }
.policy-hero { background: var(--ink); color: var(--paper); border-top: 1px solid var(--line-dark); }
.policy-hero-inner { max-width: var(--max); margin: 0 auto; min-height: min(440px, 53svh); padding: clamp(3.5rem, 9vw, 8.5rem) var(--pad) clamp(3.8rem, 8vw, 6rem); display: grid; grid-template-columns: 1fr minmax(190px, .35fr); align-items: end; gap: 2rem; position: relative; }
.policy-hero-inner::after { content: ""; position: absolute; right: 13%; top: 0; height: 100%; width: 1px; background: var(--line-dark); }
.back-link { display: inline-flex; gap: .45rem; margin-bottom: clamp(2.4rem, 6vw, 5rem); color: var(--muted-dark); font-family: var(--mono); font-size: .62rem; letter-spacing: .06em; text-decoration: none; text-transform: uppercase; }
.back-link:hover { color: var(--blue); }
.policy-hero h1 { margin: 0; max-width: 11ch; font-size: clamp(3rem, 7.2vw, 7rem); }
.policy-hero h1 span { color: var(--paper); }
.policy-hero h1 em { color: var(--blue); font-style: normal; }
.policy-kicker { position: relative; z-index: 1; align-self: start; color: var(--blue); font-family: var(--mono); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; }
.policy-kicker::after { content: ""; display: block; width: 5rem; height: 1px; margin-top: 1rem; background: var(--blue); }
.policy-content { max-width: var(--max); margin: 0 auto; padding: clamp(3rem, 7vw, 6rem) var(--pad) clamp(4rem, 9vw, 8rem); display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(2rem, 12vw, 12rem); }
.policy-intro { color: var(--blue-deep); font-family: var(--mono); font-size: .67rem; line-height: 1.75; letter-spacing: .07em; text-transform: uppercase; }
.policy-sections { max-width: 650px; }
.policy-section { padding: 0 0 2.2rem; margin: 0 0 2.2rem; border-bottom: 1px solid var(--line-light); }
.policy-section:last-child { border-bottom: 0; }
.policy-section h2 { margin: 0 0 .9rem; color: var(--ink); font-size: clamp(1.5rem, 2.65vw, 2.35rem); line-height: 1.04; }
.policy-section p { margin-bottom: 1rem; color: #33454c; }
.policy-section p:last-child { margin-bottom: 0; }
.policy-section a { color: var(--ink); font-weight: 700; }
.policy-contact { padding: 1.35rem 1.45rem; border-left: 3px solid var(--blue-deep); background: var(--paper-deep); }
.policy-contact strong { display: block; margin-bottom: .2rem; color: var(--ink); }

@media (max-width: 860px) {
  .site-header { min-height: 70px; padding-top: .9rem; padding-bottom: .9rem; }
  .nav-toggle { display: block; }
  .primary-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; padding: 1.1rem var(--pad) 1.35rem; flex-direction: column; align-items: flex-start; gap: 1rem; background: var(--ink-soft); border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { width: 100%; padding: .25rem 0; }
  .hero { min-height: auto; }
  .hero-grid { min-height: 0; padding-bottom: 6rem; grid-template-columns: 1fr; gap: 2.5rem; }
  .flight-study { min-height: 260px; max-width: 430px; }
  .flight-study::before { inset: 4% -10% 0 0; }
  .hero-copy { max-width: 650px; }
  .hero::after { right: 8%; }
  .company-layout, .contact-layout, .products-header, .policy-content { grid-template-columns: 1fr; gap: 2.4rem; }
  .product-entry { grid-template-columns: 1fr; }
  .product-number { margin-bottom: 1rem; }
  .product-brow, .product-content { grid-column: 1; }
  .product-content { grid-template-columns: 1fr; gap: 1.6rem; }
  .site-footer { align-items: flex-start; flex-direction: column; }
  .footer-links { justify-content: flex-start; }
  .policy-hero-inner { min-height: 400px; grid-template-columns: 1fr; }
  .policy-kicker { align-self: auto; }
}

@media (max-width: 520px) {
  :root { --pad: 1.25rem; }
  .brand { font-size: .65rem; }
  .brand img { width: 2rem; height: 2rem; }
  .hero-grid { padding-top: 3.5rem; }
  h1 { font-size: clamp(3.2rem, 16vw, 4.4rem); }
  .scroll-cue { left: var(--pad); right: auto; gap: .5rem; font-size: .48rem; }
  .scroll-cue i { width: 1.3rem; }
  .scroll-cue span:last-child { display: none; }
  .products-header { padding-top: 3.6rem; }
  .product-entry { padding-top: 1.6rem; }
  .product-brow { line-height: 1.8; }
  .product-content h3 { font-size: 3.3rem; }
  .site-footer { padding-top: 1.8rem; padding-bottom: 1.8rem; }
  .policy-hero-inner { min-height: 350px; }
  .policy-hero h1 { font-size: clamp(3rem, 15vw, 4.6rem); }
}

@media (prefers-reduced-motion: no-preference) {
  .reveal { animation: rise-in .72s both; }
  .hero-copy { animation-delay: .08s; }
  .flight-study { animation-delay: .16s; }
  @keyframes rise-in { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}