:root {
  --bg-primary: #0a0d14;
  --bg-card: rgba(18, 24, 38, 0.75);
  --border-card: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-violet: #8b5cf6;
  --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
  --glow-color: rgba(59, 130, 246, 0.15);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 50% 20%, rgba(6, 182, 212, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 20% 70%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 1.5rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: 540px;
  display: flex;
  justify-content: center;
}

.card {
  width: 100%;
  text-align: center;
  padding: 2.5rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 1rem;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5),
              0 0 50px -10px var(--glow-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.brand-title {
  font-size: clamp(2.2rem, 8vw, 3.25rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
  line-height: 1.1;
}

.tagline {
  font-size: clamp(0.85rem, 3.2vw, 1.1rem);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.status-message {
  font-size: clamp(0.9rem, 3vw, 1rem);
  font-weight: 400;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.status-message::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.35;
    transform: scale(0.8);
  }
}

@media (min-width: 640px) {
  .card {
    padding: 3.5rem 2.5rem;
  }
}