:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  padding-top: max(24px, env(safe-area-inset-top));
  padding-right: max(18px, env(safe-area-inset-right));
  padding-bottom: max(24px, env(safe-area-inset-bottom));
  padding-left: max(18px, env(safe-area-inset-left));
  color: #fff;
  background:
    radial-gradient(circle at 78% 12%, rgba(130, 67, 214, 0.35), transparent 35%),
    radial-gradient(circle at 15% 85%, rgba(238, 77, 159, 0.18), transparent 38%),
    #090822;
}

main { width: min(900px, 100%); margin: 0 auto; }

.hero {
  display: grid;
  grid-template-columns: 104px 1fr;
  gap: 22px;
  align-items: center;
  margin: 32px 0;
}

.icon {
  width: 104px;
  border-radius: 26px;
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.4);
}

h1 { margin: 0 0 8px; font-size: clamp(2rem, 6vw, 4rem); line-height: 1; }
.lead { margin: 0; color: #c9c5df; font-size: 1.05rem; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }

.card {
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 28px;
  padding: 26px;
  background: linear-gradient(145deg, rgba(34, 31, 78, 0.83), rgba(16, 14, 47, 0.78));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.device { margin: 0 0 5px; color: #b767ff; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
h2 { margin: 0 0 12px; font-size: 1.55rem; }
p, li { color: #c9c5df; line-height: 1.55; }
ol { margin: 16px 0 0; padding-left: 22px; }

.button {
  display: flex;
  min-height: 56px;
  margin-top: 22px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: 17px;
  padding: 14px 18px;
  color: #fff;
  background: linear-gradient(120deg, #8a42eb, #df3f9b);
  box-shadow: 0 12px 32px rgba(162, 55, 218, 0.3);
  font-weight: 800;
  text-decoration: none;
}

.button.secondary { border: 1px solid rgba(255, 255, 255, 0.15); background: rgba(255, 255, 255, 0.07); box-shadow: none; }
.note { margin-top: 18px; padding: 16px 18px; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 18px; color: #b9b4cf; background: rgba(255, 255, 255, 0.04); }
.back { display: inline-flex; margin-top: 24px; color: #d9c8ff; text-decoration: none; }

@media (max-width: 680px) {
  .hero { grid-template-columns: 76px 1fr; margin-top: 14px; }
  .icon { width: 76px; border-radius: 20px; }
  .grid { grid-template-columns: 1fr; }
  .card { padding: 22px; border-radius: 24px; }
}