:root {
  --bg: #0f172a;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --accent: #6366f1;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); color: var(--fg); font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji"; }

.container { max-width: 960px; margin: 0 auto; padding: 24px; }

.site-header { background: #0b1220; border-bottom: 1px solid #1f2937; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; }
.site-title { margin: 0; font-size: 20px; }
.site-title a { color: var(--fg); text-decoration: none; }
.site-nav a { color: var(--muted); margin-left: 16px; text-decoration: none; }
.site-nav a:hover { color: var(--fg); }

h2 { margin-top: 0; }

/* Mobile Warning Screen */
#mobile-warning-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #1d4ed8 100%);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
}

.mobile-warning-content {
  text-align: center;
  color: white;
  padding: 2rem;
  max-width: 90%;
  animation: fadeInUp 0.8s ease-out;
}

.mobile-warning-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.9;
}

.mobile-warning-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 0 1rem 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.mobile-warning-content p {
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0.5rem 0;
  opacity: 0.95;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.mobile-warning-footer {
  margin-top: 2rem;
  font-size: 0.9rem;
  opacity: 0.8;
  font-weight: 500;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive adjustments for smaller mobile screens */
@media (max-width: 480px) {
  .mobile-warning-content h1 {
    font-size: 2rem;
  }
  
  .mobile-warning-content p {
    font-size: 1rem;
  }
  
  .mobile-warning-icon {
    font-size: 3rem;
  }
}