:root {
  color-scheme: dark;
  --navy: #07182e;
  --navy-deep: #04101f;
  --surface: #102844;
  --surface-soft: #173452;
  --cyan: #55d9f2;
  --cyan-soft: #b9f2fa;
  --coral: #ff8f82;
  --white: #f7fbff;
  --muted: #adc2d6;
  --line: rgba(185, 242, 250, 0.16);
  --radius-lg: 32px;
  --radius-md: 20px;
  --shadow: 0 28px 80px rgba(0, 8, 20, 0.42);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--navy-deep);
  color: var(--white);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--navy-deep); }
body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 80% 8%, rgba(85, 217, 242, 0.12), transparent 30rem),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 75%);
  color: var(--white);
}
a { color: inherit; }
img { display: block; max-width: 100%; }

.site-header,
main,
footer {
  width: min(1480px, calc(100% - 64px));
  margin-inline: auto;
}

.site-header {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  text-decoration: none;
  border-radius: 14px;
}
.brand img { border-radius: 14px; }
.brand span { display: grid; line-height: 1.08; letter-spacing: .055em; }
.brand strong { font-size: .92rem; }
.brand small { margin-top: 4px; color: var(--cyan); font-weight: 700; }

.version-pill {
  padding: 9px 14px;
  color: var(--cyan-soft);
  background: rgba(16, 40, 68, .84);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .86rem;
  font-weight: 650;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(500px, 1.05fr);
  gap: clamp(32px, 4vw, 64px);
  min-height: calc(100vh - 100px);
  align-items: center;
  padding: 18px 0 64px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: .79rem;
  font-weight: 800;
  letter-spacing: .18em;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 20px;
  font-size: clamp(3.4rem, 6vw, 6.8rem);
  line-height: .89;
  letter-spacing: -.066em;
  font-weight: 680;
}
h1 span { color: var(--cyan); }
.lede {
  max-width: 700px;
  color: var(--muted);
  font-size: clamp(1.04rem, 1.45vw, 1.22rem);
  line-height: 1.58;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 26px;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 72px;
  padding: 13px 24px;
  color: var(--navy-deep);
  background: var(--cyan);
  border: 2px solid transparent;
  border-radius: 18px;
  box-shadow: 0 16px 40px rgba(85, 217, 242, .2);
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}
.download-button:hover { transform: translateY(-2px); background: #78e6f8; box-shadow: 0 20px 52px rgba(85, 217, 242, .3); }
.download-button svg { width: 28px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.download-button span { display: grid; line-height: 1.18; }
.download-button strong { font-size: 1.04rem; }
.download-button small { margin-top: 4px; opacity: .72; font-weight: 650; }
.download-button.compact { min-height: 64px; margin-top: 26px; }

.text-link {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  color: var(--cyan-soft);
  font-weight: 700;
  text-underline-offset: 5px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 24px;
  margin: 22px 0 0;
  padding: 0;
  color: var(--muted);
  list-style: none;
  font-size: .9rem;
}
.trust-row li { display: flex; align-items: center; gap: 9px; }
.trust-row li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 4px rgba(255, 143, 130, .11); }

.hero-visual {
  position: relative;
  min-width: 0;
  padding: 10px;
  background: linear-gradient(145deg, rgba(185, 242, 250, .25), rgba(255, 143, 130, .12));
  border: 1px solid rgba(185, 242, 250, .24);
  border-radius: 38px;
  box-shadow: var(--shadow);
}
.hero-visual > picture > img { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: 30px; }
.app-badge {
  position: absolute;
  left: clamp(18px, 3vw, 44px);
  bottom: clamp(-42px, -3.4vw, -24px);
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 250px;
  padding: 12px 18px 12px 12px;
  background: rgba(4, 16, 31, .9);
  border: 1px solid rgba(185, 242, 250, .24);
  border-radius: 24px;
  box-shadow: 0 16px 50px rgba(0, 0, 0, .35);
  backdrop-filter: blur(16px);
}
.app-badge img { border-radius: 18px; }
.app-badge span { display: grid; }
.app-badge strong { font-size: 1.05rem; }
.app-badge small { color: var(--muted); margin-top: 4px; }

.feature-band {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-block: 1px solid var(--line);
  margin: 24px 0 120px;
}
.feature-band div { padding: 25px 20px; border-right: 1px solid var(--line); }
.feature-band div:last-child { border-right: 0; }
.feature-band strong, .feature-band span { display: block; }
.feature-band strong { color: var(--cyan-soft); }
.feature-band span { margin-top: 6px; color: var(--muted); font-size: .88rem; }

.install { padding: 12px 0 126px; }
.section-heading { max-width: 760px; }
h2 { font-size: clamp(2.25rem, 4.4vw, 4.8rem); line-height: 1.02; letter-spacing: -.045em; }
.section-heading > p:last-child { color: var(--muted); font-size: 1.1rem; line-height: 1.65; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 0; margin: 44px 0 0; list-style: none; }
.steps li { min-height: 240px; padding: 26px; background: linear-gradient(150deg, rgba(23, 52, 82, .9), rgba(9, 29, 50, .9)); border: 1px solid var(--line); border-radius: var(--radius-md); }
.step-number { display: inline-block; margin-bottom: 62px; color: var(--coral); font-size: .82rem; font-weight: 800; letter-spacing: .12em; }
.steps h3 { margin-bottom: 10px; font-size: 1.35rem; }
.steps p { margin-bottom: 0; color: var(--muted); line-height: 1.55; }

.compatibility {
  display: grid;
  grid-template-columns: minmax(320px, .8fr) 1.2fr;
  gap: clamp(34px, 7vw, 110px);
  align-items: center;
  padding: clamp(34px, 5vw, 76px);
  background: linear-gradient(135deg, rgba(16, 40, 68, .98), rgba(4, 16, 31, .95));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.compatibility-art { display: grid; place-items: center; min-height: 360px; background: radial-gradient(circle, rgba(85, 217, 242, .22), transparent 62%); }
.compatibility-art img { border-radius: 48px; box-shadow: 0 28px 70px rgba(0, 0, 0, .4); transform: rotate(-4deg); }
.compatibility p:not(.eyebrow) { max-width: 700px; color: var(--muted); font-size: 1.06rem; line-height: 1.68; }
.compatibility-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.compatibility-list span { padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; color: var(--cyan-soft); font-size: .86rem; font-weight: 650; }

.integrity {
  display: grid;
  grid-template-columns: minmax(280px, .6fr) 1.4fr;
  gap: 24px;
  align-items: center;
  margin: 76px 0 120px;
  padding: 26px;
  background: rgba(16, 40, 68, .72);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.integrity > div { display: flex; align-items: center; gap: 16px; }
.integrity svg { flex: 0 0 auto; width: 40px; fill: none; stroke: var(--cyan); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.integrity h2 { margin: 0; font-size: 1.15rem; letter-spacing: 0; }
.integrity p { margin: 5px 0 0; color: var(--muted); font-size: .88rem; }
.integrity code { overflow-wrap: anywhere; padding: 14px 16px; color: var(--cyan-soft); background: rgba(4, 16, 31, .76); border-radius: 12px; font-size: .78rem; line-height: 1.5; }

.disclaimer { max-width: 930px; margin: 0 auto 130px; text-align: center; }
.disclaimer p { color: var(--muted); font-size: 1.08rem; line-height: 1.7; }

footer { display: flex; justify-content: space-between; gap: 20px; padding: 28px 0 42px; color: var(--muted); border-top: 1px solid var(--line); font-size: .87rem; }

a:focus-visible { outline: 3px solid var(--coral); outline-offset: 5px; }

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 66px; }
  .hero-copy { max-width: 820px; }
  .hero-visual { margin-top: 18px; }
  .feature-band { grid-template-columns: repeat(2, 1fr); }
  .feature-band div { border-bottom: 1px solid var(--line); }
  .feature-band div:nth-child(2n) { border-right: 0; }
  .feature-band div:last-child { grid-column: 1 / -1; }
  .compatibility { grid-template-columns: 1fr; }
  .compatibility-art { min-height: 280px; }
  .integrity { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .site-header, main, footer { width: min(100% - 32px, 1480px); }
  .site-header { min-height: 78px; }
  .version-pill { font-size: .75rem; padding: 7px 10px; }
  .hero { padding: 42px 0 82px; gap: 38px; }
  h1 { font-size: clamp(3.35rem, 17vw, 5rem); }
  .hero-actions { align-items: stretch; }
  .download-button { width: 100%; }
  .text-link { justify-content: center; }
  .trust-row { display: grid; }
  .hero-visual { padding: 5px; border-radius: 24px; }
  .hero-visual > picture > img { border-radius: 19px; }
  .app-badge { left: 14px; bottom: -48px; min-width: min(280px, calc(100% - 28px)); }
  .feature-band { grid-template-columns: 1fr; margin-bottom: 90px; }
  .feature-band div, .feature-band div:nth-child(2n) { border-right: 0; border-bottom: 1px solid var(--line); }
  .feature-band div:last-child { grid-column: auto; border-bottom: 0; }
  .install { padding-bottom: 90px; }
  .steps { grid-template-columns: 1fr; }
  .steps li { min-height: 190px; }
  .step-number { margin-bottom: 36px; }
  .compatibility { padding: 30px 20px; border-radius: 24px; }
  .compatibility-art { min-height: 230px; }
  .compatibility-art img { width: 170px; border-radius: 36px; }
  .integrity { margin: 54px 0 90px; padding: 20px; }
  .disclaimer { margin-bottom: 90px; text-align: left; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}