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

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  color: #0b1220;
  background: #f7f9fc;
  line-height: 1.5;
  overflow: hidden;
}

/* Fullscreen Overlay */
#coming-soon {
  position: fixed;
  /* inset Fallback */
  top: 0; right: 0; bottom: 0; left: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, rgba(8, 18, 40, 0.9), rgba(8, 18, 40, 0.85));
  color: #eaf2ff;
  text-align: center;
  padding: 24px;
}

/* Card */
.cs-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  padding: 24px;
  width: 100%;
  max-width: 560px;
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(8px);
}

.cs-card h1 {
  margin: 0 0 8px 0;
  font-weight: 700;
  font-size: clamp(28px, 6vw, 42px);
  letter-spacing: 0.3px;
}

.cs-card p {
  margin: 0;
  opacity: 0.95;
  font-size: clamp(16px, 3.5vw, 18px);
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  body { background: #0b1220; color: #eaf2ff; }
  .cs-card {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.18);
  }
}

@media (max-width: 360px) {
  .cs-card { padding: 20px; border-radius: 12px; }
}