:root {
  --canvas: #06111d;
  --canvas-deep: #040b13;
  --surface: #0c1d2f;
  --surface-soft: #10243a;
  --line: #224966;
  --line-strong: #2c6383;
  --text: #f4f8ff;
  --muted: #a7bad0;
  --aqua: #31d8c7;
  --aqua-deep: #0f766d;
  --gold: #ffb126;
  --shell: 1180px;
}

* { box-sizing: border-box; }
html { width: 100%; overflow-x: clip; scroll-behavior: smooth; }
body { width: 100%; margin: 0; min-width: 320px; overflow-x: clip; background: var(--canvas); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.55; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, p, li, figcaption, code { overflow-wrap: anywhere; }
.shell { width: min(var(--shell), calc(100% - 48px)); margin-inline: auto; }
.shell, .hero-copy, .hero-meta, .hero-art, .price-block, .showcase-item, .asset-summary, .not-included, .video-placeholder { min-width: 0; max-width: 100%; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 20; transform: translateY(-160%); padding: 10px 14px; border-radius: 6px; background: var(--aqua); color: #04131f; font-weight: 800; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid rgba(44, 99, 131, .72); background: rgba(6, 17, 29, .96); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--text); font-size: 15px; font-weight: 850; letter-spacing: 0; text-decoration: none; white-space: nowrap; }
.brand small { color: var(--muted); font-size: 9px; font-weight: 750; letter-spacing: 1px; }
.brand-mark { display: grid; width: 32px; height: 32px; place-items: center; border: 1px solid var(--aqua); border-radius: 7px; color: var(--aqua); font-size: 21px; line-height: 1; }
.nav-links { display: flex; align-items: center; gap: 24px; color: var(--muted); font-size: 14px; font-weight: 700; }
.nav-links a { text-decoration: none; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--aqua); }

.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(230px, 300px); gap: 54px; align-items: end; padding-top: 88px; padding-bottom: 40px; }
.hero-copy, .section-heading, .contact-layout > div, .price-block { min-width: 0; }
.eyebrow { margin: 0 0 12px; color: var(--aqua); font-size: 13px; font-weight: 850; letter-spacing: 1.5px; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 760px; margin-bottom: 12px; font-size: 68px; line-height: .96; letter-spacing: 0; }
h2 { max-width: 800px; margin-bottom: 16px; font-size: 42px; line-height: 1.08; letter-spacing: 0; }
h3 { margin-bottom: 8px; font-size: 23px; line-height: 1.2; }
.hero-lead { margin-bottom: 13px; color: var(--text); font-size: 29px; font-weight: 750; }
.hero-meta { max-width: 680px; margin-bottom: 28px; color: var(--muted); font-size: 17px; }
.hero-meta span { padding-inline: 6px; color: var(--aqua); }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 12px 18px; border: 1px solid transparent; border-radius: 7px; font-size: 15px; font-weight: 850; text-align: center; text-decoration: none; }
.button-primary { background: var(--aqua); color: #04121d; }
.button-primary:hover, .button-primary:focus-visible { background: #77eee3; }
.text-link { color: var(--aqua); font-size: 15px; font-weight: 800; text-underline-offset: 4px; }
.price-block { padding: 24px; border-left: 3px solid var(--aqua); background: var(--surface); }
.price-block p { margin-bottom: 8px; color: var(--muted); font-size: 14px; font-weight: 700; }
.price-block strong { display: block; color: var(--aqua); font-size: 34px; line-height: 1.1; }
.price-block strong small { color: var(--text); font-size: 15px; }
.price-block span { display: block; margin-top: 10px; color: var(--muted); font-size: 15px; }
.hero-art { border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden; background: var(--canvas-deep); }
.hero-art img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }

.proof-strip { margin-top: 44px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--canvas-deep); }
.proof-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.proof-grid div { min-height: 112px; padding: 25px 22px; border-left: 1px solid var(--line); }
.proof-grid div:last-child { border-right: 1px solid var(--line); }
.proof-grid strong { display: block; color: var(--aqua); font-size: 19px; }
.proof-grid span { color: var(--muted); font-size: 14px; }

.section { padding-block: 104px; }
.section-heading { max-width: 780px; margin-bottom: 36px; }
.section-heading.compact { margin-bottom: 28px; }
.section-heading > p:not(.eyebrow), .section-copy { color: var(--muted); font-size: 18px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 0; padding: 0; list-style: none; }
.feature-grid li { min-height: 54px; display: flex; align-items: center; padding: 12px 15px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); color: var(--text); font-size: 15px; font-weight: 750; }
.feature-grid li::before { content: ""; width: 8px; height: 8px; flex: 0 0 auto; margin-right: 10px; border-radius: 999px; background: var(--aqua); }

.showcase-band { border-block: 1px solid var(--line); background: var(--canvas-deep); }
.showcase-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.showcase-item { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.showcase-item.wide { grid-column: 1 / -1; }
.showcase-item img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.showcase-item figcaption { padding: 12px 15px; color: var(--muted); font-size: 14px; font-weight: 700; }

.video-section { padding-bottom: 68px; }
.video-frame { overflow: hidden; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--surface); aspect-ratio: 16 / 9; }
.video-frame iframe { display: block; width: 100%; height: 100%; border: 0; }

.two-column-band { padding-block: 88px; border-block: 1px solid var(--line); background: var(--surface); }
.split-layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(290px, .8fr); gap: 60px; }
.check-list, .security-list { margin: 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 10px 0 10px 30px; border-bottom: 1px solid rgba(44, 99, 131, .66); color: var(--muted); font-size: 16px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 10px; color: var(--aqua); font-weight: 900; }
.asset-summary { padding: 27px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--canvas); }
.asset-summary p:not(.eyebrow) { color: var(--muted); }
.asset-summary hr { height: 1px; margin: 23px 0; border: 0; background: var(--line); }

.buyer-section { padding-bottom: 92px; }
.buyer-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr); gap: 58px; align-items: center; }
.not-included { padding: 24px; border-left: 3px solid var(--gold); background: #161912; }
.not-included p:last-child { margin-bottom: 0; color: #eadfca; }

.security-band { padding-block: 88px; border-block: 1px solid var(--line); background: var(--canvas-deep); }
.security-list { display: grid; gap: 11px; }
.security-list li { padding: 13px 15px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); color: var(--muted); }
code { color: var(--aqua); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .92em; }

.tech-section { padding-block: 90px; }
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; }
.badge-row span { padding: 9px 12px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--surface); color: var(--text); font-size: 14px; font-weight: 750; }
.badge-row.subdued span { border-color: var(--line); color: var(--muted); }
.optional-label { margin: 24px 0 9px; color: var(--muted); font-size: 14px; font-weight: 800; }

.contact-section { padding-block: 76px; border-top: 1px solid var(--line-strong); background: var(--surface); }
.contact-layout { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.contact-layout h2 { margin-bottom: 9px; font-size: 42px; }
.contact-layout p:last-child { margin-bottom: 0; color: var(--muted); }
.site-footer { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 13px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 26px; padding-top: 64px; }
  .price-block { max-width: 360px; }
  .proof-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof-grid div:nth-child(3) { border-left: 1px solid var(--line); }
  .split-layout, .buyer-grid { grid-template-columns: 1fr; gap: 34px; }
  .asset-summary { max-width: 620px; }
}

@media (max-width: 640px) {
  .shell { width: calc(100vw - 32px); }
  .nav { min-height: 64px; }
  .nav-links { display: none; }
  h1 { font-size: 46px; }
  h2, .contact-layout h2 { font-size: 32px; }
  .hero-lead { font-size: 23px; line-height: 1.22; }
  .hero-meta { font-size: 15px; }
  .hero-meta span { padding-inline: 3px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 14px; }
  .button { width: 100%; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-grid div, .proof-grid div:last-child { border-right: 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .proof-grid div:last-child { border-bottom: 0; }
  .section { padding-block: 72px; }
  .feature-grid, .showcase-grid { grid-template-columns: 1fr; }
  .showcase-item.wide { grid-column: auto; }
  .two-column-band, .security-band { padding-block: 66px; }
  .contact-layout, .site-footer { align-items: flex-start; flex-direction: column; }
  .site-footer { justify-content: center; padding-block: 20px; }
}

@media (max-width: 500px) {
  h1 { font-size: 42px; }
  .hero-lead { font-size: 21px; }
  .hero-meta { font-size: 14px; }
  .price-block { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }