:root {
  --ink: #f8fbff;
  --muted: #a9b7cc;
  --bg: #03040d;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.13);
  --line: rgba(255, 255, 255, 0.16);
  --cyan: #35f5ff;
  --pink: #ff4def;
  --gold: #ffd663;
  --green: #7cffb1;
  --shadow: 0 24px 72px rgba(0, 0, 0, 0.38);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 18% 18%, rgba(53, 245, 255, 0.28), transparent 30%),
    radial-gradient(circle at 78% 10%, rgba(255, 77, 239, 0.2), transparent 28%),
    radial-gradient(circle at 80% 90%, rgba(124, 255, 177, 0.14), transparent 30%),
    var(--bg);
  background-size: 44px 44px, 44px 44px, auto, auto, auto, auto;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar,
main,
footer {
  width: min(1120px, calc(100% - 28px));
  margin-inline: auto;
}

.topbar {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand,
nav,
.actions,
.stat-row {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 950;
  letter-spacing: 0.02em;
}

.brand img {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 0 16px rgba(53, 245, 255, 0.7));
}

nav {
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

nav a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 13px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.055);
  font-size: 13px;
  font-weight: 800;
}

.hero {
  min-height: calc(100svh - 120px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.78fr);
  align-items: center;
  gap: 24px;
  padding: 28px 0 42px;
}

.hero-copy h1,
h2,
h3,
p {
  margin-top: 0;
}

.hero-copy h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(44px, 8vw, 88px);
  line-height: 0.88;
  letter-spacing: 0;
}

.hero-copy > p:not(.kicker) {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.55;
}

.kicker {
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.actions {
  gap: 10px;
  flex-wrap: wrap;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 18px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), 0 14px 28px rgba(0, 0, 0, 0.22);
  font-weight: 950;
}

.button.primary {
  border-color: rgba(53, 245, 255, 0.62);
  color: #031219;
  background: linear-gradient(135deg, var(--cyan), var(--green));
}

.stat-row {
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.stat-row span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 13px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.055);
  font-size: 13px;
}

.stat-row strong {
  color: var(--gold);
}

.phone-panel,
.preview-band,
.feature-grid article,
.launch-strip {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, var(--panel-strong), rgba(255, 255, 255, 0.045));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.phone-panel {
  border-radius: 28px;
  padding: 16px;
}

.phone-screen {
  min-height: 560px;
  display: grid;
  align-content: center;
  gap: 20px;
  border-radius: 22px;
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(3, 4, 13, 0.34), rgba(3, 4, 13, 0.94)),
    radial-gradient(circle at 50% 12%, rgba(255, 77, 239, 0.22), transparent 34%),
    #07101f;
}

.qr {
  width: min(100%, 310px);
  margin-inline: auto;
  border-radius: 18px;
  padding: 12px;
  background: #fff;
}

.phone-screen h2 {
  margin-bottom: 10px;
  font-size: clamp(28px, 4vw, 44px);
  overflow-wrap: anywhere;
}

.phone-screen p {
  color: var(--muted);
  line-height: 1.5;
}

.preview-band,
.launch-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-radius: 24px;
  margin: 22px 0;
  padding: 24px;
}

.preview-band p,
.launch-strip p,
.feature-grid p {
  color: var(--muted);
  line-height: 1.55;
}

.preview-band h2,
.launch-strip h2 {
  margin-bottom: 8px;
  font-size: clamp(28px, 4vw, 48px);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.feature-grid article {
  min-height: 190px;
  border-radius: 18px;
  padding: 18px;
}

.feature-grid h3 {
  margin-bottom: 10px;
  color: var(--gold);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 34px 0 42px;
  color: var(--muted);
  font-size: 13px;
}

footer a {
  color: var(--cyan);
}

@media (max-width: 860px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  nav {
    justify-content: flex-start;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 14px;
  }

  .phone-screen {
    min-height: auto;
  }

  .preview-band,
  .launch-strip,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .topbar,
  main,
  footer {
    width: min(100% - 20px, 1120px);
  }

  .hero-copy h1 {
    font-size: 46px;
  }

  .button {
    width: 100%;
  }

  .stat-row span,
  nav a {
    flex: 1 1 auto;
    text-align: center;
  }
}