:root {
  --color-bg: #07111f;
  --color-surface: #0d1b2d;
  --color-surface-elevated: #132640;
  --color-text: #f6f0e5;
  --color-text-muted: #b7c1cf;
  --color-accent: #38a8ff;
  --color-accent-soft: rgba(56, 168, 255, 0.16);
  --color-border: rgba(191, 214, 237, 0.18);
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --container: 1120px;
  --content: 720px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 5rem;
  --radius: 1rem;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  --transition: 180ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--color-bg); }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: var(--color-bg); color: var(--color-text); font-family: var(--font-sans); font-size: 1rem; line-height: 1.6; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
button { font: inherit; }
img, svg { display: block; max-width: 100%; }

.skip-link { position: fixed; z-index: 100; top: -5rem; left: 1rem; padding: 0.75rem 1rem; background: var(--color-text); color: var(--color-bg); border-radius: 0 0 0.5rem 0.5rem; }
.skip-link:focus { top: 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; }
.container { width: min(calc(100% - 2.5rem), var(--container)); margin-inline: auto; }
.content-column { width: min(100%, var(--content)); margin-inline: auto; }
.eyebrow { margin: 0 0 var(--space-2); color: var(--color-accent); font-size: 0.76rem; font-weight: 800; letter-spacing: 0.13em; line-height: 1.3; }
.section-title { max-width: 15ch; margin: 0; font-size: clamp(2.1rem, 5vw, 4rem); line-height: 1.05; letter-spacing: -0.045em; }
.section-intro { max-width: 43rem; margin: var(--space-3) 0 0; color: var(--color-text-muted); font-size: clamp(1.05rem, 2vw, 1.2rem); }

:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 4px; }
.site-header { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid transparent; transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition); }
.site-header.is-scrolled { border-color: var(--color-border); background: rgba(7, 17, 31, 0.86); backdrop-filter: blur(14px); }
.nav-shell { display: flex; min-height: 4.75rem; align-items: center; justify-content: space-between; gap: var(--space-2); }
.wordmark { color: var(--color-text); font-size: 0.83rem; font-weight: 850; letter-spacing: 0.14em; text-decoration: none; white-space: nowrap; }
.site-nav ul { display: flex; align-items: center; gap: 1.5rem; margin: 0; padding: 0; list-style: none; }
.site-nav a { color: var(--color-text-muted); font-size: 0.92rem; font-weight: 650; text-decoration: none; transition: color var(--transition); }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--color-text); }
.menu-toggle { display: none; min-width: 44px; min-height: 44px; padding: 0.5rem; border: 1px solid var(--color-border); border-radius: 0.55rem; background: transparent; color: var(--color-text); cursor: pointer; }
.menu-toggle__bars, .menu-toggle__bars::before, .menu-toggle__bars::after { display: block; width: 1.25rem; height: 2px; margin: auto; background: currentColor; content: ""; transition: transform var(--transition); }
.menu-toggle__bars::before { transform: translateY(-0.38rem); }
.menu-toggle__bars::after { transform: translateY(0.25rem); }

.button-row { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: var(--space-4); }
.button { display: inline-flex; min-height: 2.9rem; align-items: center; justify-content: center; padding: 0.7rem 1.05rem; border: 1px solid var(--color-accent); border-radius: 0.65rem; background: var(--color-accent); color: #03111f; font-size: 0.93rem; font-weight: 800; text-decoration: none; transition: transform var(--transition), background var(--transition), box-shadow var(--transition); }
.button:hover { box-shadow: 0 10px 25px rgba(56, 168, 255, 0.26); transform: translateY(-2px); }
.button--secondary { border-color: var(--color-border); background: transparent; color: var(--color-text); }
.button--secondary:hover { background: rgba(255, 255, 255, 0.06); box-shadow: none; }
.text-link { color: var(--color-accent); font-weight: 750; }

.hero { position: relative; isolation: isolate; min-height: min(760px, calc(100vh - 4.75rem)); padding: clamp(5rem, 12vw, 9rem) 0 var(--space-6); overflow: hidden; }
.hero::before { position: absolute; z-index: -2; top: -17rem; right: -14rem; width: min(62vw, 54rem); aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(56, 168, 255, 0.24), transparent 66%); content: ""; filter: blur(8px); }
.hero::after { position: absolute; z-index: -1; right: 8%; bottom: 14%; width: clamp(12rem, 29vw, 24rem); height: clamp(12rem, 29vw, 24rem); border: 1px solid rgba(56, 168, 255, 0.28); border-radius: 35% 65% 57% 43% / 43% 42% 58% 57%; content: ""; transform: rotate(-20deg); }
.hero__content { max-width: 51rem; }
.hero__wordmark { margin: 0; font-size: clamp(1.05rem, 2vw, 1.45rem); font-weight: 850; letter-spacing: 0.19em; }
.hero h1 { max-width: 12ch; margin: var(--space-3) 0 0; font-size: clamp(3.2rem, 9vw, 7.25rem); line-height: 0.94; letter-spacing: -0.07em; }
.hero p { max-width: 39rem; margin: var(--space-3) 0 0; color: var(--color-text-muted); font-size: clamp(1.08rem, 2vw, 1.25rem); }
.section { padding: var(--space-6) 0; }
.section--surface { background: linear-gradient(180deg, rgba(19, 38, 64, 0.44), rgba(13, 27, 45, 0.3)); border-block: 1px solid var(--color-border); }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-top: var(--space-4); }
.card { min-height: 15rem; padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); box-shadow: 0 0 0 transparent; transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); }
.card:hover { border-color: rgba(56, 168, 255, 0.45); box-shadow: var(--shadow); transform: translateY(-4px); }
.card__symbol { display: grid; width: 2.8rem; height: 2.8rem; place-items: center; border: 1px solid rgba(56, 168, 255, 0.5); border-radius: 50%; color: var(--color-accent); font-size: 1.2rem; }
.card h3 { margin: var(--space-3) 0 0; font-size: 1.35rem; letter-spacing: -0.03em; }
.card p { margin: var(--space-1) 0 0; color: var(--color-text-muted); }

.featured { display: grid; grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.76fr); align-items: center; gap: clamp(2.5rem, 7vw, 7rem); }
.featured__copy { max-width: 37rem; }
.featured__description { margin: var(--space-3) 0 0; color: var(--color-text-muted); font-size: 1.08rem; }
.highlights { display: grid; gap: 1rem; margin: var(--space-4) 0 0; padding: 0; list-style: none; }
.highlights li { position: relative; padding-left: 1.35rem; color: var(--color-text-muted); }
.highlights li::before { position: absolute; left: 0; color: var(--color-accent); content: "•"; }
.highlights strong { display: block; color: var(--color-text); }
.phone-wrap { display: grid; min-width: 0; place-items: center; }
.phone { position: relative; width: min(100%, 19rem); padding: 0.6rem; border: 1px solid rgba(230, 240, 250, 0.4); border-radius: 2.25rem; background: #02070d; box-shadow: 0 25px 55px rgba(0, 0, 0, 0.44), inset 0 0 0 2px #162333; }
.phone::before { display: block; width: 36%; height: 1.2rem; margin: 0 auto -0.4rem; border-radius: 0 0 0.75rem 0.75rem; background: #02070d; content: ""; }
.phone__screen { display: grid; min-height: 31rem; place-items: center; padding: 2rem; overflow: hidden; border-radius: 1.75rem; background: radial-gradient(circle at 50% 30%, rgba(56, 168, 255, 0.35), transparent 35%), linear-gradient(145deg, #102846, #07111f 68%); text-align: center; }
.phone__screen::before { position: absolute; width: 14rem; height: 14rem; border: 1px solid rgba(246, 240, 229, 0.15); border-radius: 47% 53% 66% 34% / 44% 51% 49% 56%; content: ""; transform: rotate(35deg); }
.phone__screen > div { position: relative; }
.phone__screen strong { display: block; font-size: 1.2rem; letter-spacing: 0.13em; }
.phone__screen span { display: block; margin-top: 0.7rem; color: var(--color-text-muted); font-size: 0.9rem; }

.about-grid { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr); gap: var(--space-5); align-items: start; }
.about-copy { color: var(--color-text-muted); font-size: 1.1rem; }
.about-copy p:first-child { margin-top: 0; }
.contact-panel { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: var(--space-3); padding: clamp(1.6rem, 5vw, 3rem); border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); }
.contact-panel h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -0.045em; }
.contact-panel p { max-width: 39rem; margin: 0.7rem 0 0; color: var(--color-text-muted); }
.contact-status { padding: 0.75rem 1rem; border: 1px dashed rgba(56, 168, 255, 0.6); border-radius: 0.6rem; color: var(--color-accent); font-size: 0.9rem; font-weight: 700; }

.page-hero { padding: clamp(4rem, 9vw, 7rem) 0 var(--space-5); border-bottom: 1px solid var(--color-border); }
.page-hero h1 { max-width: 13ch; margin: 0; font-size: clamp(3rem, 8vw, 6rem); line-height: 0.95; letter-spacing: -0.065em; }
.page-hero p { max-width: 42rem; margin: var(--space-3) 0 0; color: var(--color-text-muted); font-size: 1.1rem; }
.product-page { display: grid; grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.75fr); align-items: center; gap: clamp(2.5rem, 7vw, 7rem); padding: var(--space-6) 0; }
.support-list { padding-left: 1.2rem; color: var(--color-text-muted); }
.support-list li + li { margin-top: 0.5rem; }
.legal { padding: var(--space-6) 0; }
.legal h2 { margin-top: 2.5rem; font-size: 1.35rem; }
.legal p, .legal li { color: var(--color-text-muted); }
.legal-notice { padding: var(--space-3); border: 1px solid rgba(56, 168, 255, 0.4); border-radius: var(--radius); background: var(--color-accent-soft); }
.legal-notice strong { color: var(--color-text); }
.route-links { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: var(--space-4); }

.site-footer { padding: var(--space-5) 0; border-top: 1px solid var(--color-border); }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); }
.footer-grid p { margin: 0.4rem 0 0; color: var(--color-text-muted); font-size: 0.92rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1rem; align-items: start; }
.footer-nav a { color: var(--color-text-muted); font-size: 0.92rem; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity 550ms ease, transform 550ms ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 760px) {
  .container { width: min(calc(100% - 2rem), var(--container)); }
  .menu-toggle { display: inline-grid; place-items: center; }
  .site-nav ul { gap: 0; }
  .js .site-nav { display: none; }
  .js .site-nav.is-open { display: block; }
  .site-nav { position: absolute; top: calc(100% + 1px); right: 0; left: 0; padding: 0 1rem 1rem; background: rgba(7, 17, 31, 0.97); border-bottom: 1px solid var(--color-border); }
  .site-nav ul { display: grid; gap: 0.2rem; padding: 0.7rem; border: 1px solid var(--color-border); border-radius: 0.7rem; background: var(--color-surface); }
  .site-nav a { display: block; min-height: 44px; padding: 0.7rem; }
  .hero { min-height: auto; }
  .hero::after { right: -4rem; bottom: 2rem; }
  .card-grid, .featured, .about-grid, .product-page { grid-template-columns: 1fr; }
  .featured__copy { order: 1; }
  .phone-wrap { order: 2; }
  .card { min-height: 0; }
  .phone { width: min(100%, 18rem); }
  .phone__screen { min-height: 28rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  .js .reveal { opacity: 1; transform: none; }
}