:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0b1020;
  color: #eef4ff;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 20%, rgba(74, 222, 128, 0.18), transparent 28%),
    radial-gradient(circle at 80% 10%, rgba(96, 165, 250, 0.22), transparent 30%),
    linear-gradient(135deg, #070b16 0%, #111936 100%);
}

.card {
  width: min(100%, 520px);
  padding: 42px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 28px;
  background: rgba(15, 23, 42, 0.72);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(18px);
  text-align: center;
}

.status-dot {
  width: 18px;
  height: 18px;
  margin: 0 auto 20px;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 8px rgba(34, 197, 94, 0.14), 0 0 36px rgba(34, 197, 94, 0.85);
}

.eyebrow {
  margin: 0 0 10px;
  color: #93c5fd;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.3rem, 8vw, 4.2rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.message {
  margin: 22px auto 28px;
  max-width: 34rem;
  color: #cbd5e1;
  font-size: 1.05rem;
  line-height: 1.65;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  color: #06101f;
  background: linear-gradient(135deg, #86efac, #93c5fd);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 12px 30px rgba(96, 165, 250, 0.22);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(96, 165, 250, 0.3);
}

button:active {
  transform: translateY(0);
}

.result {
  min-height: 1.5em;
  margin: 22px 0 0;
  color: #a7f3d0;
  font-weight: 700;
}