:root {
  --bg: #071a2e;
  --ink: #eaf3fb;
  --muted: #9db2c8;
  --cyan: #43cdea;
  --teal: #2fb6a8;
  --green: #37d67a;
  --orange: #f3a54a;
  --red: #ff5b5b;
  --card: rgba(255, 255, 255, 0.055);
  --stroke: rgba(255, 255, 255, 0.11);
  --maxw: 1080px;
  --radius: 18px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  line-height: 1.62;
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Ambient background glows */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 45% at 78% -5%, rgba(67,205,234,.20), transparent 60%),
    radial-gradient(55% 40% at 12% 8%, rgba(47,182,168,.16), transparent 60%),
    radial-gradient(80% 60% at 50% 120%, rgba(55,214,122,.10), transparent 60%),
    linear-gradient(180deg, #08203a 0%, #06101d 100%);
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* Nav */
header.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(140%) blur(16px);
  background: rgba(6, 16, 29, 0.6);
  border-bottom: 1px solid var(--stroke);
}
.nav-inner { display: flex; align-items: center; gap: 14px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 1px; color: var(--ink); font-size: 18px; }
.brand img { width: 32px; height: 32px; border-radius: 9px; box-shadow: 0 6px 16px rgba(0,0,0,.4); }
.nav-links { margin-left: auto; display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-size: 15px; font-weight: 600; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 9px; cursor: pointer;
  padding: 14px 22px; border-radius: 14px; font-weight: 800; font-size: 16px;
  border: 1px solid transparent; transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary { background: linear-gradient(180deg, #4bd4ef, #29a9c8); color: #04202b; box-shadow: 0 12px 30px rgba(43,182,220,.35); }
.btn-ghost { background: var(--card); color: var(--ink); border-color: var(--stroke); }
.price-inline { font-weight: 800; color: var(--ink); }
.price-note { color: var(--muted); font-size: 14px; }

/* Hero */
.hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; padding: 66px 0 40px; }
.hero .eyebrow { display: inline-block; color: var(--cyan); font-weight: 800; letter-spacing: 2px; font-size: 13px; text-transform: uppercase; margin-bottom: 14px; }
.hero h1 { font-size: clamp(38px, 6vw, 64px); line-height: 1.02; font-weight: 850; letter-spacing: -1.2px; }
.hero h1 .accent { background: linear-gradient(90deg, var(--cyan), var(--green)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.sub { color: var(--muted); font-size: clamp(16px, 2.4vw, 20px); margin: 18px 0 26px; max-width: 560px; }
.cta-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.trust { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.chip { display: inline-flex; align-items: center; gap: 7px; font-size: 13.5px; font-weight: 700; color: #cfe0f0;
  background: var(--card); border: 1px solid var(--stroke); border-radius: 999px; padding: 7px 13px; }
.chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }

/* Phone mockup */
.phone-wrap { display: flex; justify-content: center; }
.phone {
  width: 280px; aspect-ratio: 9 / 19; border-radius: 42px; padding: 12px;
  background: linear-gradient(160deg, #24405c, #0c1c30); border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 40px 90px rgba(0,0,0,.55), inset 0 1px 0 rgba(255,255,255,.14);
}
.phone svg { width: 100%; height: 100%; display: block; border-radius: 32px; }

/* Sections */
section { padding: 46px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 34px; }
h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 850; letter-spacing: -.5px; }
.section-head p { color: var(--muted); margin-top: 10px; font-size: 17px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { background: var(--card); border: 1px solid var(--stroke); border-radius: var(--radius); padding: 22px; }
.step .n { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-weight: 800;
  background: linear-gradient(180deg, rgba(67,205,234,.25), rgba(67,205,234,.08)); color: var(--cyan); margin-bottom: 12px; }
.step h3 { font-size: 18px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 15px; }

/* Differentiator highlight */
.highlight { background: linear-gradient(180deg, rgba(67,205,234,.10), rgba(47,182,168,.06));
  border: 1px solid rgba(67,205,234,.28); border-radius: 24px; padding: 34px; display: grid;
  grid-template-columns: 1.2fr .8fr; gap: 26px; align-items: center; }
.highlight h2 { font-size: clamp(24px, 3.5vw, 32px); }
.highlight p { color: #cfe0f0; margin-top: 10px; }
.stat { text-align: center; }
.stat .big { font-size: 54px; font-weight: 850; background: linear-gradient(90deg, var(--cyan), var(--green));
  -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.stat .lab { color: var(--muted); font-weight: 700; letter-spacing: .5px; margin-top: 8px; }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--stroke); border-radius: var(--radius); padding: 22px;
  transition: transform .15s ease, border-color .15s ease; }
.card:hover { transform: translateY(-3px); border-color: rgba(67,205,234,.4); }
.card .ic { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; font-size: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.03)); margin-bottom: 13px; }
.card h3 { font-size: 17.5px; margin-bottom: 6px; }
.card p { color: var(--muted); font-size: 15px; }

/* Safety */
.notice { background: rgba(243,165,74,.10); border: 1px solid rgba(243,165,74,.34); border-radius: var(--radius);
  padding: 22px 24px; }
.notice h3 { color: var(--orange); font-size: 17px; margin-bottom: 6px; }
.notice p { color: #efdcc3; font-size: 15px; }

/* FAQ */
.faq details { background: var(--card); border: 1px solid var(--stroke); border-radius: 14px; padding: 4px 18px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--cyan); font-weight: 800; }
.faq details[open] summary::after { content: "–"; }
.faq p { color: var(--muted); padding: 0 0 14px; font-size: 15px; }

/* CTA band */
.ctaband { text-align: center; background: linear-gradient(180deg, rgba(67,205,234,.14), rgba(55,214,122,.06));
  border: 1px solid rgba(67,205,234,.3); border-radius: 26px; padding: 48px 24px; }
.ctaband h2 { margin-bottom: 8px; }
.ctaband p { color: var(--muted); margin-bottom: 22px; }

/* Legal / content pages */
.doc { padding: 44px 0 20px; max-width: 760px; }
.doc h1 { font-size: clamp(28px, 5vw, 42px); font-weight: 850; letter-spacing: -.5px; }
.doc .updated { color: var(--muted); font-size: 14px; margin: 6px 0 26px; }
.doc h2 { font-size: 21px; margin: 30px 0 8px; }
.doc h3 { font-size: 16px; margin: 20px 0 6px; color: var(--cyan); }
.doc p, .doc li { color: #d7e3ee; font-size: 15.5px; }
.doc ul { margin: 8px 0 8px 22px; }
.doc li { margin: 5px 0; }
.doc .box { background: var(--card); border: 1px solid var(--stroke); border-radius: 14px; padding: 16px 18px; margin: 16px 0; }

/* Footer */
footer { border-top: 1px solid var(--stroke); margin-top: 56px; padding: 30px 0 48px; color: var(--muted); font-size: 14px; }
.foot-inner { display: flex; flex-wrap: wrap; gap: 10px 24px; align-items: center; }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; margin-left: auto; }
.foot-links a { color: var(--muted); font-weight: 600; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 40px; gap: 30px; }
  .hero .cta-row, .hero .trust { justify-content: center; }
  .hero p.sub { margin-inline: auto; }
  .phone-wrap { order: -1; }
  .steps { grid-template-columns: 1fr; }
  .highlight { grid-template-columns: 1fr; text-align: center; }
  .nav-links a:not(.persist) { display: none; }
}