:root {
  color-scheme: dark;
  --background: #07102d;
  --panel: #101b48;
  --panel-light: #18265c;
  --ink: #f7f8ff;
  --muted: #bbc5ed;
  --line: rgba(255, 255, 255, 0.13);
  --teal: #2ce2d8;
  --coral: #ff664f;
  --navy: #091236;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background:
    radial-gradient(circle at 82% 2%, rgba(44, 226, 216, 0.12), transparent 28rem),
    var(--background);
  color: var(--ink);
  margin: 0;
}

a { color: inherit; }

.site-header,
main,
footer {
  margin-inline: auto;
  max-width: 1180px;
  width: calc(100% - 40px);
}

.site-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 78px;
}

.brand {
  align-items: center;
  display: flex;
  font-size: 18px;
  font-weight: 850;
  gap: 10px;
  text-decoration: none;
}

.brand img { border-radius: 10px; }

nav { display: flex; gap: 26px; }

nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

nav a:hover { color: var(--ink); }

.hero {
  align-items: center;
  display: grid;
  gap: 55px;
  grid-template-columns: minmax(0, 0.9fr) minmax(460px, 1.1fr);
  min-height: 650px;
  padding: 64px 0 86px;
}

.eyebrow {
  color: var(--teal);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.13em;
  margin: 0 0 14px;
  text-transform: uppercase;
}

h1,
h2,
p { margin-top: 0; }

h1 {
  font-size: clamp(44px, 5.6vw, 72px);
  letter-spacing: -0.06em;
  line-height: 0.99;
  margin-bottom: 24px;
}

.hero__lead {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.6;
  margin-bottom: 30px;
  max-width: 680px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 13px;
  display: inline-flex;
  font-size: 14px;
  font-weight: 800;
  justify-content: center;
  min-height: 50px;
  padding: 0 19px;
  text-decoration: none;
  transition: transform 150ms ease, background 150ms ease;
}

.button:hover { transform: translateY(-2px); }

.button--primary { background: var(--coral); color: #fff; }
.button--primary:hover { background: #f2533d; }
.button--secondary { background: rgba(255,255,255,0.07); border-color: var(--line); }
.button--secondary:hover { background: rgba(255,255,255,0.12); }

.trust-line {
  color: #929dcb;
  font-size: 12px;
  margin: 16px 0 0;
}

.hero__visual img,
.steps-section > img {
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.37);
  display: block;
  height: auto;
  width: 100%;
}

.hero__visual { transform: perspective(1000px) rotateY(-3deg) rotateX(1deg); }

.feature-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature-grid article {
  background: linear-gradient(150deg, var(--panel-light), var(--panel));
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 27px;
}

.feature-icon {
  align-items: center;
  background: rgba(44, 226, 216, 0.12);
  border-radius: 12px;
  color: var(--teal);
  display: flex;
  font-size: 24px;
  font-weight: 850;
  height: 44px;
  justify-content: center;
  margin-bottom: 22px;
  width: 44px;
}

.surface-grid {
  display: grid;
  gap: 3px;
  grid-template-columns: repeat(2, 7px);
}

.surface-grid i {
  background: currentColor;
  border-radius: 2px;
  display: block;
  height: 7px;
  width: 7px;
}

.feature-grid h2 { font-size: 20px; margin-bottom: 9px; }
.feature-grid p,
.steps li span,
.why-section p,
.privacy-section p,
.faq details p,
.final-cta p { color: var(--muted); line-height: 1.6; }

.why-section {
  align-items: center;
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 70px;
  grid-template-columns: 1fr 1fr;
  margin-top: 76px;
  padding: 52px 0;
}

.why-section h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  letter-spacing: -0.045em;
  line-height: 1.1;
  margin-bottom: 0;
}

.why-section > p {
  font-size: 17px;
  margin-bottom: 0;
}

.steps-section {
  align-items: center;
  display: grid;
  gap: 70px;
  grid-template-columns: 0.85fr 1.15fr;
  padding: 130px 0;
}

.steps-section h2,
.privacy-section h2,
.faq > h2 {
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.steps { counter-reset: step; list-style: none; margin: 35px 0 0; padding: 0; }

.steps li {
  display: grid;
  gap: 4px 14px;
  grid-template-columns: 34px 1fr;
  margin-top: 22px;
}

.steps li::before {
  align-items: center;
  background: var(--teal);
  border-radius: 50%;
  color: var(--navy);
  content: counter(step);
  counter-increment: step;
  display: flex;
  font-size: 13px;
  font-weight: 900;
  grid-row: 1 / 3;
  height: 29px;
  justify-content: center;
  width: 29px;
}

.steps li strong { font-size: 16px; }
.steps li span { font-size: 14px; }

.privacy-section {
  background: linear-gradient(135deg, #14255a, #0d3a4b);
  border: 1px solid var(--line);
  border-radius: 24px;
  display: grid;
  gap: 60px;
  grid-template-columns: 0.8fr 1.2fr;
  padding: 48px;
}

.privacy-section a { color: var(--teal); font-weight: 700; }

.faq { margin: 125px auto; max-width: 800px; }

.faq details {
  border-top: 1px solid var(--line);
  padding: 22px 0;
}

.faq summary { cursor: pointer; font-size: 17px; font-weight: 750; }
.faq details p { margin: 13px 0 0; }

.final-cta {
  align-items: center;
  background: #fff;
  border-radius: 24px;
  color: #111a47;
  display: grid;
  gap: 25px;
  grid-template-columns: auto 1fr auto;
  padding: 34px;
}

.final-cta h2 { font-size: 27px; margin-bottom: 5px; }
.final-cta p { color: #5a6489; margin: 0; }

footer {
  color: #8d98c4;
  display: flex;
  font-size: 11px;
  justify-content: space-between;
  padding: 40px 0;
}

@media (max-width: 850px) {
  .hero,
  .steps-section,
  .why-section { grid-template-columns: 1fr; }
  .hero { min-height: 0; padding-top: 50px; }
  .hero__visual { transform: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-section { padding: 90px 0; }
  .why-section { gap: 12px; }
  .privacy-section { gap: 15px; grid-template-columns: 1fr; padding: 32px; }
}

@media (max-width: 600px) {
  .site-header,
  main,
  footer { width: calc(100% - 28px); }
  nav a:not(:last-child) { display: none; }
  h1 { font-size: 43px; }
  .actions { align-items: stretch; flex-direction: column; }
  .final-cta { grid-template-columns: 1fr; text-align: center; }
  .final-cta img { margin-inline: auto; }
  footer { flex-direction: column; gap: 8px; }
}