:root {
  --bg-a: #0d0f14;
  --bg-b: #151a24;
  --fg: #e5e9f0;
  --dim: #7c869c;
  --accent: #88c0d0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(160deg, var(--bg-a) 0%, var(--bg-b) 60%, var(--bg-a) 100%);
  color: var(--fg);
  font-family: ui-monospace, SFMono-Regular, Menlo, "D2Coding", monospace;
}

.card {
  width: 100%;
  max-width: 520px;
  padding: 32px 28px;
  background: rgba(255, 255, 255, .03);
  border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 18px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .4);
}

pre {
  margin: 0 0 24px;
  white-space: pre-wrap;
  word-break: break-all;
  font-size: 14px;
  line-height: 1.7;
  color: var(--dim);
}

pre b {
  color: var(--fg);
  font-weight: 600;
}

.ip {
  color: var(--accent);
  font-weight: 600;
}

.btn {
  display: block;
  width: 100%;
  padding: 15px 20px;
  border: 1px solid rgba(136, 192, 208, .3);
  border-radius: 12px;
  background: rgba(136, 192, 208, .08);
  color: var(--accent);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
}

.btn:hover {
  transform: translateY(-2px);
  background: rgba(136, 192, 208, .16);
  box-shadow: 0 8px 22px rgba(0, 0, 0, .35);
}

.btn:active { transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
  .btn:hover { transform: none; }
}