:root {
  color-scheme: light;
  --navy-950: #031126;
  --navy-900: #071b34;
  --navy-800: #0b2d55;
  --blue-600: #0d69ff;
  --teal-500: #12b9b1;
  --teal-100: #dff8f5;
  --ink: #102239;
  --muted: #5c6b7e;
  --line: #dce6ef;
  --paper: #f5f9fc;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(3, 17, 38, .12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); line-height: 1.6; }
a { color: inherit; }
img { display: block; max-width: 100%; }
.shell { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 100; padding: 10px 14px; color: var(--white); background: var(--navy-950); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: absolute; inset: 0 0 auto; z-index: 10; padding: 22px 0; }
.header-inner, .footer-inner, .callout-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-block; padding: 8px 12px; border-radius: 12px; background: rgba(255,255,255,.95); box-shadow: 0 8px 28px rgba(3,17,38,.18); }
.brand img { width: 210px; height: auto; }
.quiet-link { color: #c8d8ea; font-weight: 700; text-decoration: none; }
.quiet-link:hover, .quiet-link:focus-visible { color: var(--white); }

.hero { position: relative; overflow: hidden; color: var(--white); background: radial-gradient(circle at 78% 28%, rgba(13, 105, 255, .34), transparent 28%), radial-gradient(circle at 62% 80%, rgba(18, 185, 177, .23), transparent 32%), linear-gradient(135deg, var(--navy-950), var(--navy-800)); }
.hero::after { content: ""; position: absolute; inset: auto -10% -180px 30%; height: 320px; border: 1px solid rgba(255,255,255,.08); border-radius: 50%; transform: rotate(-8deg); }
.hero-grid { min-height: 760px; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr); align-items: center; gap: 70px; padding-block: 150px 90px; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { margin: 0 0 16px; color: var(--teal-500); font-size: .78rem; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: -.035em; }
h1 { max-width: 760px; margin-bottom: 24px; font-size: clamp(3.1rem, 7vw, 6.4rem); }
h2 { margin-bottom: 22px; font-size: clamp(2.25rem, 4vw, 4.2rem); }
h3 { margin-bottom: 12px; font-size: 1.35rem; }
.lead { max-width: 690px; margin: 0; color: #d8e5f2; font-size: clamp(1.08rem, 1.7vw, 1.34rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 13px 22px; border: 1px solid transparent; border-radius: 999px; font-weight: 800; text-decoration: none; transition: transform .18s ease, background .18s ease, border-color .18s ease; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { color: var(--white); background: linear-gradient(120deg, var(--blue-600), #168fef); box-shadow: 0 12px 30px rgba(13, 105, 255, .27); }
.button-secondary { color: var(--white); border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.06); }

.signal-card { position: relative; aspect-ratio: 1; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; background: rgba(255,255,255,.035); box-shadow: inset 0 0 80px rgba(18,185,177,.08); }
.signal-core { position: relative; z-index: 2; width: 47%; aspect-ratio: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(255,255,255,.24); border-radius: 50%; color: #bdd1e7; background: rgba(3,17,38,.58); backdrop-filter: blur(12px); text-transform: uppercase; letter-spacing: .11em; }
.signal-core strong { margin: 6px 0; color: var(--white); font-size: 1.55rem; letter-spacing: -.02em; }
.signal-core span { font-size: .65rem; font-weight: 800; }
.signal-orbit { position: absolute; inset: 9%; border: 1px solid rgba(18,185,177,.5); border-radius: 50%; }
.signal-orbit::before { content: ""; position: absolute; top: 14%; left: 10%; width: 13px; height: 13px; border-radius: 50%; background: var(--teal-500); box-shadow: 0 0 24px var(--teal-500); }
.orbit-two { inset: 24%; border-color: rgba(13,105,255,.58); }
.orbit-two::before { inset: auto 8% 15% auto; background: var(--blue-600); box-shadow: 0 0 24px var(--blue-600); }

.trust-strip { border-bottom: 1px solid var(--line); background: var(--paper); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.trust-grid p { margin: 0; padding: 30px; border-left: 1px solid var(--line); }
.trust-grid p:last-child { border-right: 1px solid var(--line); }
.trust-grid strong, .trust-grid span { display: block; }
.trust-grid strong { color: var(--navy-900); font-size: 1.05rem; }
.trust-grid span { margin-top: 4px; color: var(--muted); font-size: .93rem; }

.section { padding: 112px 0; }
.section-heading { max-width: 760px; margin-bottom: 52px; }
.section-heading > p:last-child, .outcome-copy > p, .callout p { color: var(--muted); font-size: 1.08rem; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.feature-card { position: relative; min-height: 260px; padding: 34px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg, var(--white), var(--paper)); box-shadow: 0 10px 35px rgba(3,17,38,.045); }
.feature-card p { max-width: 440px; margin: 0; color: var(--muted); }
.feature-number { display: inline-block; margin-bottom: 46px; color: var(--blue-600); font-size: .8rem; font-weight: 900; letter-spacing: .12em; }
.section-dark { color: var(--white); background: var(--navy-950); }
.outcome-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; }
.section-dark .outcome-copy > p { color: #c6d4e3; }
.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 34px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 16px 16px 16px 45px; border: 1px solid rgba(255,255,255,.12); border-radius: 14px; color: #dce7f1; background: rgba(255,255,255,.035); }
.check-list li::before { content: "✓"; position: absolute; left: 17px; color: var(--teal-500); font-weight: 900; }
.callout { background: var(--paper); }
.callout-inner { padding: 52px; border-radius: 28px; background: var(--white); box-shadow: var(--shadow); }
.callout h2 { margin-bottom: 10px; font-size: clamp(2rem, 4vw, 3.5rem); }
.callout p { max-width: 670px; margin-bottom: 0; }
.site-footer { padding: 38px 0; color: #9fb1c4; background: var(--navy-950); }
.site-footer img { width: 165px; filter: brightness(0) invert(1); opacity: .9; }
.site-footer p { margin: 0; font-size: .88rem; }

@media (prefers-reduced-motion: no-preference) {
  .signal-orbit { animation: spin 22s linear infinite; }
  .orbit-two { animation-direction: reverse; animation-duration: 15s; }
  @keyframes spin { to { transform: rotate(360deg); } }
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; min-height: auto; gap: 50px; padding-top: 140px; }
  .signal-card { width: min(100%, 450px); margin-inline: auto; }
  .trust-grid, .outcome-grid { grid-template-columns: 1fr; }
  .trust-grid p, .trust-grid p:last-child { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .outcome-grid { gap: 30px; }
  .callout-inner { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 28px, 1160px); }
  .brand img { width: 170px; }
  .quiet-link { font-size: .88rem; }
  .hero-grid { padding-bottom: 70px; }
  .feature-grid, .check-list { grid-template-columns: 1fr; }
  .section { padding: 78px 0; }
  .feature-card { min-height: 220px; padding: 28px; }
  .feature-number { margin-bottom: 34px; }
  .callout-inner { padding: 30px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}