:root {
  color-scheme: dark;
  --bg: #050a0c;
  --ink: #eaf6fb;
  --muted: #9fb6c2;
  --dim: #647884;
  --line: rgba(120, 200, 230, 0.18);
  --panel: #0b141a;
  --panel-2: #10202a;
  --cyan: #22d3ee;
  --cyan-soft: #67e8f9;
  --teal: #2dd4bf;
  --amber: #ffe39a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}
a { color: inherit; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92svh;
  overflow: hidden;
  display: grid;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(1100px 700px at 78% 28%, rgba(34, 211, 238, 0.16), transparent 60%),
    radial-gradient(900px 600px at 12% 80%, rgba(45, 212, 191, 0.10), transparent 60%),
    linear-gradient(180deg, #061015 0%, #050a0c 70%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(120, 220, 240, 0.06) 1px, transparent 1px);
  background-size: 100% 7px;
  mix-blend-mode: screen;
  opacity: 0.5;
}

.topbar {
  position: absolute;
  z-index: 2;
  top: 0; left: 0; right: 0;
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(22px, 6vw, 88px);
}
.brand-mark {
  font-weight: 850;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: 0.12em;
}
.brand-mark span { color: var(--cyan); }
.topbar-links { display: flex; gap: clamp(12px, 3vw, 26px); align-items: center; }
.topbar-links .text-link { font-size: 0.92rem; }
.nav-download {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 16px;
  color: var(--cyan);
  font-weight: 750;
  text-decoration: none;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.045);
}

.hero-copy {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 44px));
  margin-left: clamp(22px, 7vw, 104px);
  padding: 120px 0 96px;
}
.eyebrow, .section-kicker {
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
h1, h2, p { margin-top: 0; }
h1 {
  margin-bottom: 18px;
  font-size: clamp(4.6rem, 15vw, 11rem);
  line-height: 0.8;
  letter-spacing: -0.01em;
  background: linear-gradient(180deg, #ffffff 0%, var(--cyan-soft) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4.7vw, 4.4rem);
  line-height: 0.98;
}
.lede {
  max-width: 600px;
  margin-bottom: 0;
  color: #cfe3ec;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-top: 34px;
}
.button {
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid rgba(34, 211, 238, 0.55);
  border-radius: 10px;
  padding: 0 26px;
  background: linear-gradient(180deg, #aef4ff 0%, #4fdcf0 100%);
  color: #042027;
  font-weight: 850;
  font-size: 1.05rem;
  text-decoration: none;
  box-shadow: 0 24px 58px rgba(0, 0, 0, 0.35), 0 0 46px rgba(34, 211, 238, 0.22);
  transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}
.button:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.42), 0 0 64px rgba(34, 211, 238, 0.32);
}
.button svg { width: 18px; height: 18px; }
.text-link {
  color: var(--cyan-soft);
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid rgba(103, 232, 249, 0.45);
}
.microcopy { margin-top: 18px; color: var(--muted); font-size: 0.98rem; }

/* ---------- Signal band ---------- */
.signal-band {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}
.signal-band span {
  min-height: 78px;
  display: flex;
  align-items: center;
  padding: 0 clamp(18px, 5vw, 72px);
  background: #070d11;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 700;
}

/* ---------- Sections ---------- */
.section {
  padding: clamp(58px, 9vw, 116px) clamp(22px, 7vw, 112px);
  border-bottom: 1px solid var(--line);
}
.split, .install {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 1fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: start;
}
.copy-stack { display: grid; gap: 20px; }
.section p, .section li, .final-cta p { color: var(--muted); font-size: clamp(1rem, 1.45vw, 1.2rem); }

.feature-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.feature-strip div {
  min-height: 200px;
  padding: clamp(24px, 4vw, 44px);
  border-right: 1px solid var(--line);
}
.feature-strip div:last-child { border-right: 0; }
.feature-strip strong { display: block; margin-bottom: 12px; color: var(--ink); font-size: 1.12rem; }
.feature-strip span { color: var(--muted); }

.steps { margin: 0; padding: 0; list-style: none; counter-reset: steps; }
.steps li {
  position: relative;
  padding: 18px 0 18px 58px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.steps li::before {
  counter-increment: steps;
  content: counter(steps);
  position: absolute;
  left: 0; top: 15px;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid rgba(34, 211, 238, 0.5);
  border-radius: 50%;
  color: var(--cyan);
  font-weight: 850;
}

.disclaimer { background: #08110f; }
.disclaimer p:last-child { max-width: 940px; }

.scan-list { margin: 0; padding: 0; list-style: none; }
.scan-list li { padding: 16px 0; border-top: 1px solid var(--line); }

.final-cta { padding: clamp(62px, 10vw, 128px) 22px; text-align: center; }
.final-cta h2 { margin: 0 auto 18px; max-width: 760px; }
.final-cta p { margin-bottom: 26px; }
.hash {
  margin: 28px auto 0;
  max-width: min(880px, calc(100vw - 44px));
  color: var(--dim);
  overflow-wrap: anywhere;
  font-size: 0.86rem;
}
code { color: var(--amber); font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace; }

footer.home {
  padding: 40px clamp(22px, 7vw, 112px);
  color: var(--dim);
  font-size: 0.86rem;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  justify-content: space-between;
}

@media (max-width: 880px) {
  .hero { min-height: 90svh; }
  .topbar { height: 64px; padding: 0 18px; }
  .topbar-links { gap: 14px; }
  .hero-copy { align-self: end; margin: 0 20px; padding: 96px 0 56px; }
  h1 { font-size: clamp(3.4rem, 18vw, 4.6rem); line-height: 0.86; }
  .signal-band, .split, .install, .feature-strip { grid-template-columns: 1fr; }
  .signal-band span, .feature-strip div {
    min-height: auto;
    padding: 22px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}