:root {
  color-scheme: dark;
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  background: #07111f;
  color: #edf5ff;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 15% 12%, rgba(68, 212, 255, 0.14), transparent 32rem),
    linear-gradient(145deg, #07111f, #0c1728 70%);
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  place-items: center;
  padding: 24px;
}

.card {
  width: min(620px, 100%);
  min-width: 0;
  padding: clamp(28px, 6vw, 48px);
  border: 1px solid rgba(141, 220, 255, 0.25);
  border-radius: 24px;
  background: rgba(11, 25, 43, 0.92);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
}

.eyebrow {
  margin: 0 0 18px;
  color: #6ee7ff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(30px, 7vw, 48px);
  line-height: 1.12;
}

h1 span {
  color: #a8bdd3;
  font-size: 0.58em;
  font-weight: 650;
}

p {
  margin: 0 0 14px;
  color: #d7e4f2;
  font-size: 16px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 14px 0 18px;
  padding: 15px 20px;
  border: 0;
  border-radius: 14px;
  background: #61ddff;
  color: #06111e;
  font: inherit;
  font-weight: 850;
  text-align: center;
  text-decoration: none;
  overflow-wrap: anywhere;
  cursor: pointer;
}

.button:hover,
.button:focus-visible {
  background: #9aebff;
  outline: 3px solid rgba(97, 221, 255, 0.3);
  outline-offset: 3px;
}

.button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.button.secondary {
  background: transparent;
  color: #9ceaff;
  border: 1px solid rgba(97, 221, 255, 0.55);
}

.safety,
.notice {
  color: #b6c9dc;
  font-size: 14px;
}

.notice {
  padding: 16px;
  margin: 20px 0;
  border: 1px solid rgba(255, 187, 110, 0.4);
  border-radius: 14px;
  background: rgba(255, 164, 61, 0.08);
}

.notice p:last-child {
  margin-bottom: 0;
}

.text-link {
  display: inline-block;
  margin-top: 14px;
  color: #8de7ff;
  font-size: 14px;
  font-weight: 700;
}

@media (max-width: 480px) {
  .shell {
    padding: 14px;
  }

  .card {
    padding: 26px 20px;
    border-radius: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}