:root { color-scheme: dark; }
* { box-sizing: border-box; }
html { min-height: 100%; }
body {
  min-height: 100vh;
  margin: 0;
  color: #f4f7fa;
  background: radial-gradient(circle at 82% 12%, #153f58 0, transparent 35%),
              radial-gradient(circle at 4% 96%, #173e32 0, transparent 38%),
              #0c1520;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px 28px;
}
.card {
  width: min(100%, 690px);
  padding: clamp(30px, 6vw, 60px);
  text-align: center;
  background: #142331;
  border: 1px solid #355064;
  border-radius: 18px;
  box-shadow: 0 24px 70px #0006;
}
.logo {
  display: block;
  width: min(230px, 65vw);
  height: auto;
  margin: -25px auto -16px;
  object-fit: contain;
}
.rule {
  width: 48px;
  height: 3px;
  margin: 6px auto 27px;
  border-radius: 3px;
  background: #52b848;
}
.eyebrow {
  margin: 0 0 13px;
  color: #a6d9ee;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
}
h1 { margin: 0; font-size: clamp(30px, 5vw, 43px); line-height: 1.18; letter-spacing: -.025em; }
.description { max-width: 490px; margin: 19px auto 30px; color: #c4d1dc; font-size: 16px; line-height: 1.7; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-height: 48px;
  padding: 11px 21px;
  color: #fff;
  background: #d63028;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color .15s ease;
}
.button:hover { background: #b82620; }
.button:focus-visible { outline: 3px solid #9cdbff; outline-offset: 4px; }
.footer { margin: 27px 0 0; color: #91a7b7; font-size: 13px; text-align: center; }
@media (max-width: 480px) { .card { padding: 27px 22px 36px; } .description { font-size: 15px; } }