:root {
  --bg: #072c98;
  --fg: #e8e9ee;
  --muted: #a7adba;
  --accent: #ff0101;
  --card: #808fc8;
  --ring: #7685a0;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --fg: #0f1217;
    --muted: #5b6470;
    --accent: #ff0000;
    --card: #f6f8fb;
    --ring: #e6eaf0;
  }
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  background: radial-gradient(1200px 800px at 50% -10%, var(--card), var(--bg));
  color: var(--fg);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 24px;
}

.icon {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: clamp(72px, 22vw, 112px);
  height: clamp(72px, 22vw, 112px);
  background: linear-gradient(180deg, var(--card), var(--bg));
  border: 2px solid var(--ring);
  border-radius: 50%;
  box-shadow: 0 10px 30px color-mix(in oklab, var(--bg) 70%, black);
  animation: float 3.5s ease-in-out infinite;
  margin-bottom: 24px;
}

.icon svg {
  width: 60%;
  height: 60%;
  stroke: var(--accent);
  fill: none;
  stroke-width: 3;
}

h1 {
  font-size: clamp(28px, 6vw, 48px);
  margin: 8px 0;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--muted);
  font-size: clamp(40px, 3.7vw, 18px);
  margin: 0;
}

footer {
  position: fixed;
  bottom: 10px;
  left: 0;
  right: 0;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}