:root {
  --bg0: #0b1020;
  --bg1: #0f1730;
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.14);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --muted2: rgba(255, 255, 255, 0.6);
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
}

* {
  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 600px at 50% 10%, #1a2a6c 0%, transparent 60%),
    radial-gradient(900px 500px at 10% 90%, #0f766e 0%, transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

.page {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(720px, 100%);
  text-align: center;
  padding: 28px 22px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.logo {
  width: min(240px, 60vw);
  height: auto;
  display: block;
  margin: 4px auto 18px;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.55));
}

.title {
  margin: 0 0 10px;
  font-size: clamp(22px, 3vw, 34px);
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0 auto;
  max-width: 52ch;
  color: var(--muted);
  font-size: clamp(14px, 2vw, 18px);
  line-height: 1.55;
}

.hint {
  margin: 16px 0 0;
  color: var(--muted2);
  font-size: 13px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}