:root {
  color-scheme: dark;
  --bg: #0d0d14;
  --panel: #151520;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.7);
  --purple: #785cff;
  --cyan: #00e5ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Sora, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 10%, rgba(120, 92, 255, 0.2), transparent 32%),
    radial-gradient(circle at 88% 16%, rgba(0, 229, 255, 0.14), transparent 30%),
    var(--bg);
}

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

.demo {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 54px;
}

.logo {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  font-weight: 900;
}

nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-weight: 800;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  align-items: center;
  gap: 34px;
}

.kicker {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 780px;
  margin: 0 0 20px;
  font-size: clamp(44px, 8vw, 92px);
  line-height: 0.96;
}

.hero p:not(.kicker) {
  max-width: 650px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.65;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  margin-top: 18px;
  border-radius: 14px;
  padding: 0 22px;
  color: #0d0d14;
  background: linear-gradient(135deg, var(--cyan), #ff3dff);
  font-weight: 900;
}

.hero img {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 38px;
}

.cards article {
  min-height: 190px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.05);
}

.cards span {
  color: var(--purple);
  font-weight: 900;
}

.cards h2 {
  margin: 18px 0 10px;
}

.cards p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 850px) {
  header,
  .hero {
    grid-template-columns: 1fr;
  }

  header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    flex-wrap: wrap;
  }

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