:root {
  --logo-blue: #739cf5;
  --blue: #6e9eff;
  --blue-soft: #b9d5ff;
  --warm-bg: #0b1428;
  --warm: #f4c7a2;
  --warm-light: #f8dec3;
  --text-main: #f0f4ff;
  --text-muted: #c3d0ea;
  --panel: rgba(10, 17, 35, 0.78);
  --radius-lg: 18px;
  --shadow-soft: 0 16px 36px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  font-family: "Nunito", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: var(--text-main);
  background-color: var(--warm-bg);
  background-image:
    linear-gradient(
      180deg,
      rgba(88, 136, 232, 0.28) 0%,
      rgba(54, 96, 187, 0.18) 40%,
      rgba(24, 42, 90, 0) 70%
    ),
    linear-gradient(
      180deg,
      #0b1428 0%,
      #0f1d39 30%,
      #1b3057 55%,
      #3a4c8a 78%,
      #5b5aa4 88%,
      #f2a874 100%
    );
  background-repeat: no-repeat;
  background-size: 100% 140%, 100% 160%;
}

.page {
  width: 100%;
  max-width: 720px;
  padding: 32px 28px 24px;
  border-radius: var(--radius-lg);
  background: radial-gradient(
      120% 140% at 10% 0%,
      rgba(115, 156, 245, 0.16),
      transparent 60%
    ),
    radial-gradient(
      140% 160% at 90% 10%,
      rgba(242, 168, 116, 0.16),
      transparent 60%
    ),
    var(--panel);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.page-header {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.logo {
  max-width: 260px;
  width: 100%;
  height: auto;
  filter:
    saturate(0.6)
    hue-rotate(159deg)
    brightness(3.7)
    drop-shadow(0 0 15px rgba(255, 230, 140, 0.5));
}

.page-content {
  text-align: center;
}

.page-content h1 {
  margin: 4px 0 12px;
  font-size: clamp(1.6rem, 1.2rem + 1vw, 2rem);
  letter-spacing: 0.03em;
}

.page-content p {
  margin: 4px 0;
  font-size: 0.98rem;
  color: var(--text-muted);
}

.page-content p strong {
  color: var(--warm-light);
}

.hint {
  margin-top: 14px;
  font-size: 0.95rem;
  color: var(--blue-soft);
}

.page-footer {
  margin-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(240, 244, 255, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 10px;
}

@media (max-width: 480px) {
  .page {
    padding: 24px 18px 18px;
  }

  .logo {
    max-width: 220px;
  }
}