:root {
  color-scheme: dark;
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  background: #070b14;
  color: #f7f9fc;
}

* {
  box-sizing: border-box;
}

body {
  display: grid;
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
  place-items: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(67, 211, 255, 0.11), transparent 42%),
    #070b14;
}

main {
  display: grid;
  width: min(440px, 100%);
  gap: 16px;
}

.prerequisites {
  padding: 24px 26px;
  border: 1px solid rgba(151, 172, 201, 0.16);
  border-radius: 18px;
  background: rgba(13, 21, 35, 0.78);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.2);
  cursor: default;
}

.prerequisites h1 {
  margin: 0 0 14px;
  color: #dce5f2;
  font-size: 16px;
  line-height: 1.4;
}

.prerequisites ol {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 23px;
  color: #96a5b9;
  font-size: 14px;
  line-height: 1.6;
}

.prerequisites li::marker {
  color: #718198;
  font-weight: 700;
}

.recharge-link {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 128px;
  padding: 28px 72px 28px 30px;
  border: 1px solid rgba(67, 211, 255, 0.34);
  border-radius: 18px;
  background: rgba(15, 27, 45, 0.94);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.3);
  color: #f7f9fc;
  font-size: clamp(19px, 4.8vw, 24px);
  font-weight: 800;
  line-height: 1.35;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.recharge-link::after {
  position: absolute;
  right: 30px;
  color: #63ddff;
  content: "→";
  font-size: 28px;
  transition: transform 180ms ease;
}

.recharge-link:hover {
  border-color: rgba(67, 211, 255, 0.72);
  background: rgba(20, 39, 61, 0.98);
  box-shadow: 0 24px 68px rgba(17, 159, 201, 0.18);
  transform: translateY(-3px);
}

.recharge-link:hover::after {
  transform: translateX(5px);
}

.recharge-link:focus-visible {
  outline: 3px solid #63ddff;
  outline-offset: 5px;
}

@media (max-width: 420px) {
  .recharge-link {
    min-height: 112px;
    padding: 24px 60px 24px 24px;
  }

  .recharge-link::after {
    right: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .recharge-link,
  .recharge-link::after {
    transition: none;
  }
}