:root {
  --bg-0: #070b12;
  --bg-1: #0b1220;
  --text: #e8eefc;
  --muted: rgba(232, 238, 252, 0.75);
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.12);
  --shadow: rgba(0, 0, 0, 0.35);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial,
    "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 700px at 20% 15%, rgba(59, 130, 246, 0.15), transparent 60%),
    radial-gradient(1000px 600px at 85% 25%, rgba(14, 165, 233, 0.12), transparent 55%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1));
}

.page {
  min-height: 100%;
  display: grid;
  grid-template-rows: 1fr auto;
  padding: clamp(20px, 4vw, 48px);
}

.card {
  margin: auto;
  width: min(760px, 100%);
  padding: clamp(22px, 4vw, 44px);
  border-radius: 20px;
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: 0 18px 60px var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  text-align: center;
}

.logo {
  width: min(460px, 80vw);
  height: auto;
  display: block;
  margin: 0 auto 18px;
  filter: drop-shadow(0 18px 28px rgba(0, 0, 0, 0.35));
}

.title {
  margin: 0;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 12px auto 0;
  max-width: 56ch;
  color: var(--muted);
  font-size: clamp(14px, 1.8vw, 18px);
  line-height: 1.55;
}

.footer {
  padding-top: 18px;
  text-align: center;
  color: rgba(232, 238, 252, 0.55);
  font-size: 13px;
}

@media (prefers-reduced-motion: reduce) {
  .logo {
    filter: none;
  }
}