:root {
  --ink: #07101d;
  --ink-2: #0b1929;
  --cyan: #16c6ff;
  --cyan-2: #88e6ff;
  --red: #e3262e;
  --paper: #f4f7fa;
  --muted: #607080;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 82px;
  padding: 0 clamp(20px, 5vw, 76px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  color: white;
  background: rgba(5,14,25,.88);
  border-bottom: 1px solid rgba(116,217,255,.15);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 16px; font-size: 15px; letter-spacing: .08em; white-space: nowrap; }
.brand img { width: 116px; height: auto; border-radius: 5px; }
.brand b { color: var(--cyan); }
nav { display: flex; align-items: center; gap: 30px; font-size: 14px; color: #c9d5df; }
nav a:hover { color: white; }
.header-call {
  padding: 11px 18px;
  color: white;
  border: 1px solid rgba(52,204,255,.48);
  border-radius: 999px;
  font-weight: 800;
}

.hero { position: relative; overflow: hidden; color: white; background: var(--ink); }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 75% 25%, rgba(22,198,255,.2), transparent 36%),
    linear-gradient(135deg, #06101c 0%, #091a2d 64%, #07101d 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .18;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, black, transparent 90%);
}
.hero-grid {
  position: relative;
  z-index: 1;
  min-height: 730px;
  max-width: 1440px;
  margin: auto;
  padding: 74px clamp(24px, 6vw, 92px) 80px;
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  align-items: center;
  gap: clamp(44px, 6vw, 96px);
}
.eyebrow, .kicker {
  margin: 0 0 20px;
  color: var(--cyan-2);
  font-size: 12px;
  line-height: 1.4;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.eyebrow { display: flex; align-items: center; gap: 12px; }
.eyebrow span { width: 34px; height: 2px; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
h1 {
  max-width: 740px;
  margin: 0;
  font-size: clamp(48px, 6vw, 86px);
  line-height: .98;
  letter-spacing: -.055em;
  font-weight: 820;
}
h1 em {
  display: block;
  margin-top: 12px;
  color: transparent;
  font-style: normal;
  background: linear-gradient(90deg, #fff, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
}
.lead { max-width: 650px; margin: 30px 0 0; color: #b8c9d8; font-size: clamp(18px, 1.7vw, 22px); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button {
  min-height: 52px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 900;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.button:hover { transform: translateY(-2px); }
.button.primary { color: #00111a; background: var(--cyan); box-shadow: 0 14px 34px rgba(22,198,255,.22); }
.button.primary:hover { box-shadow: 0 17px 40px rgba(22,198,255,.36); }
.button.secondary { color: white; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.26); }
.trust-list { margin: 34px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 18px 28px; list-style: none; color: #adc0cf; font-size: 13px; }
.trust-list li::before { content: "✓"; margin-right: 8px; color: var(--cyan); font-weight: 900; }

.hero-visual { position: relative; width: min(100%, 585px); justify-self: end; }
.visual-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(83,211,255,.42);
  border-radius: 24px;
  box-shadow: 0 38px 80px rgba(0,0,0,.55), 0 0 55px rgba(22,198,255,.12);
  transform: perspective(1200px) rotateY(-3deg);
}
.visual-frame::after { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 10px rgba(4,16,27,.42); pointer-events: none; }
.visual-frame img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.live-badge {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
  padding: 9px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 7px;
  background: rgba(3,13,23,.72);
  backdrop-filter: blur(8px);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .14em;
}
.live-badge i { width: 7px; height: 7px; border-radius: 50%; background: #39f3a0; box-shadow: 0 0 12px #39f3a0; }
.scan-line { position: absolute; z-index: 1; left: 6%; right: 6%; top: 53%; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); box-shadow: 0 0 18px 2px var(--cyan); opacity: .75; }
.status-card {
  position: absolute;
  z-index: 3;
  left: -36px;
  right: 28px;
  bottom: -28px;
  padding: 16px 18px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  color: white;
  border: 1px solid rgba(116,241,184,.55);
  border-radius: 12px;
  background: rgba(3,17,27,.94);
  box-shadow: 0 20px 36px rgba(0,0,0,.45);
}
.status-dot { width: 12px; height: 12px; border-radius: 50%; background: #39f3a0; box-shadow: 0 0 16px #39f3a0; }
.status-card small, .status-card strong { display: block; }
.status-card small { color: #8ea5b5; font-size: 9px; letter-spacing: .16em; }
.status-card strong { margin-top: 3px; font-size: 15px; letter-spacing: .06em; }
.status-card > b { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 50%; color: #052219; background: #39f3a0; }

.signal-bar {
  min-height: 72px;
  padding: 18px clamp(24px, 6vw, 92px);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px 34px;
  color: #9bb2c2;
  background: #091725;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .17em;
}
.signal-bar i { width: 4px; height: 4px; background: var(--cyan); border-radius: 50%; }

.section { padding: 110px clamp(24px, 7vw, 110px); }
.section-heading { max-width: 790px; margin: 0 auto 58px; text-align: center; }
.section-heading.left { margin-left: 0; text-align: left; }
.section-heading h2 { margin: 0; font-size: clamp(38px, 4.5vw, 64px); line-height: 1.05; letter-spacing: -.045em; }
.section-heading > p:not(.kicker) { max-width: 690px; margin: 22px auto 0; color: var(--muted); font-size: 18px; line-height: 1.7; }
.section-heading.left > p:not(.kicker) { margin-left: 0; }
.kicker { color: #008ec0; }

.intro { background: white; }
.steps { max-width: 1280px; margin: auto; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #dce4eb; }
.step { position: relative; padding: 32px 24px 10px 0; }
.step:not(:last-child) { margin-right: 24px; border-right: 1px solid #dce4eb; }
.step > span { position: absolute; top: -14px; left: 0; padding-right: 10px; color: #008fc2; background: white; font-size: 11px; font-weight: 900; letter-spacing: .14em; }
.step h3 { margin: 14px 0 10px; font-size: 20px; }
.step p { margin: 0; color: var(--muted); line-height: 1.7; }

.dark-section { color: white; background: var(--ink-2); }
.dark-section .kicker { color: var(--cyan-2); }
.feature-grid { max-width: 1280px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.12); }
.feature { min-height: 230px; padding: 32px; background: var(--ink-2); transition: background .2s; }
.feature:hover { background: #102439; }
.feature > span { color: var(--cyan); font-size: 11px; font-weight: 900; letter-spacing: .16em; }
.feature h3 { margin: 44px 0 12px; font-size: 21px; }
.feature p { margin: 0; color: #a6bbca; line-height: 1.7; }
.technical-note { max-width: 850px; margin: 28px 0 0; color: #7890a1; font-size: 12px; line-height: 1.7; }

.uses-section { background: #edf2f6; }
.use-grid { max-width: 1280px; margin: auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.use-card {
  position: relative;
  overflow: hidden;
  min-height: 310px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: white;
  border-radius: 16px;
  background: #102237;
  box-shadow: 0 16px 32px rgba(7,16,29,.1);
}
.use-card::before { content: ""; position: absolute; inset: 0; opacity: .7; background: radial-gradient(circle at 80% 0%, rgba(22,198,255,.4), transparent 44%), linear-gradient(145deg, transparent 45%, rgba(0,0,0,.46)); }
.use-card::after { content: ""; position: absolute; inset: 0; opacity: .2; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 28px 28px; }
.use-card > * { position: relative; z-index: 1; }
.use-card > span { position: absolute; top: 24px; left: 28px; color: var(--cyan); font-size: 12px; font-weight: 900; }
.use-card h3 { margin: 0 0 12px; font-size: 28px; }
.use-card p { margin: 0; color: #bdd0dd; line-height: 1.65; }
.use-2 { background: #17334d; }
.use-3 { background: #0d2a36; }
.use-4 { background: #1c293d; }

.faq-section { background: white; }
.faq-layout { max-width: 1280px; margin: auto; display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: start; }
.sticky-title { position: sticky; top: 120px; }
.faq-list { border-top: 1px solid #dce4eb; }
details { border-bottom: 1px solid #dce4eb; }
summary { cursor: pointer; list-style: none; padding: 24px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; font-size: 18px; font-weight: 820; }
summary::-webkit-details-marker { display: none; }
summary span { width: 30px; height: 30px; display: grid; place-items: center; flex: 0 0 auto; color: #007fae; background: #e4f7ff; border-radius: 50%; font-size: 20px; transition: transform .2s; }
details[open] summary span { transform: rotate(45deg); }
details p { margin: -6px 48px 24px 0; color: var(--muted); line-height: 1.75; }

.final-cta { padding: 72px clamp(24px, 7vw, 110px); display: grid; grid-template-columns: 1.25fr .75fr; gap: 60px; align-items: center; color: white; background: var(--red); }
.final-cta .kicker { color: white; opacity: .75; }
.final-cta h2 { max-width: 850px; margin: 0; font-size: clamp(38px, 4.2vw, 62px); line-height: 1.02; letter-spacing: -.045em; }
.final-cta p:not(.kicker) { margin: 20px 0 0; font-size: 18px; opacity: .82; }
.cta-actions { display: flex; flex-direction: column; align-items: stretch; gap: 20px; }
.button.light { color: var(--ink); background: white; }
.phone-big { display: block; text-align: center; font-size: clamp(30px, 3.6vw, 48px); line-height: 1; font-weight: 900; }
.phone-big small { display: block; margin-bottom: 8px; font-size: 10px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; opacity: .7; }

footer { padding: 46px clamp(24px, 7vw, 110px) 60px; display: grid; grid-template-columns: 1fr 1.2fr .7fr; gap: 50px; color: #9fb1c0; background: #050d17; font-size: 13px; line-height: 1.8; }
.footer-brand img { width: 150px; border-radius: 6px; }
.footer-brand p { max-width: 300px; }
footer address { font-style: normal; }
footer strong { color: white; }
footer a:hover { color: white; }
.footer-links { display: flex; flex-direction: column; }
.mobile-cta { display: none; }

@media (max-width: 1060px) {
  nav { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 820px; }
  .hero-visual { width: min(88vw, 610px); justify-self: center; }
  .steps, .feature-grid, .use-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-layout { grid-template-columns: 1fr; gap: 20px; }
  .sticky-title { position: static; }
  .final-cta { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .site-header { height: 70px; padding: 0 16px; }
  .brand img { width: 92px; }
  .brand span { display: none; }
  .header-call { padding: 9px 13px; font-size: 13px; }
  .hero-grid { min-height: auto; padding: 54px 20px 76px; gap: 50px; }
  h1 { font-size: clamp(44px, 13vw, 65px); }
  .lead { font-size: 17px; }
  .hero-actions { display: grid; }
  .button { width: 100%; }
  .hero-visual { width: 100%; }
  .visual-frame { transform: none; border-radius: 16px; }
  .status-card { left: 12px; right: 12px; bottom: -30px; }
  .signal-bar { justify-content: flex-start; gap: 14px 20px; }
  .section { padding: 78px 20px; }
  .section-heading { margin-bottom: 42px; text-align: left; }
  .section-heading > p:not(.kicker) { margin-left: 0; }
  .steps, .feature-grid, .use-grid { grid-template-columns: 1fr; }
  .steps { gap: 30px; border-top: 0; }
  .step { padding: 0 0 0 48px; }
  .step:not(:last-child) { margin-right: 0; border-right: 0; }
  .step > span { top: 4px; padding: 0; background: transparent; }
  .feature { min-height: 200px; }
  .feature h3 { margin-top: 36px; }
  .use-card { min-height: 260px; }
  .final-cta { padding: 64px 20px; }
  footer { grid-template-columns: 1fr; padding: 46px 20px 94px; gap: 26px; }
  .mobile-cta { position: fixed; z-index: 80; left: 0; right: 0; bottom: 0; padding: 8px; display: grid; grid-template-columns: 1fr 1.25fr; gap: 8px; background: rgba(4,12,21,.96); box-shadow: 0 -10px 30px rgba(0,0,0,.3); }
  .mobile-cta a { min-height: 48px; display: grid; place-items: center; color: white; border: 1px solid rgba(255,255,255,.2); border-radius: 7px; font-weight: 900; }
  .mobile-cta a:last-child { color: #00150d; border-color: #29d77f; background: #29d77f; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}