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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1e2838, #050608);
  color: #f5f5f7;
}

.container {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
}

.header {
  text-align: center;
  margin-bottom: 16px;
}

.header h1 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.header p {
  margin: 0;
  color: #c7c7d0;
}

.card {
  background: rgba(15, 23, 42, 0.95);
  border-radius: 16px;
  padding: 16px 18px;
  margin-bottom: 12px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.card h2 {
  font-size: 1.1rem;
  margin-top: 0;
  margin-bottom: 8px;
}

.card p {
  margin: 0;
  color: #d1d5db;
}

.card ul {
  padding-left: 18px;
  margin: 8px 0 0;
  color: #d1d5db;
}

.footer {
  text-align: center;
  margin-top: 8px;
  color: #9ca3af;
}

.btn-primary {
  width: 100%;
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  background: linear-gradient(135deg, #06b6d4, #6366f1);
  color: #0b1020;
  box-shadow: 0 12px 30px rgba(59, 130, 246, 0.5);
  transition: transform 0.08s ease, box-shadow 0.08s ease, filter 0.08s ease;
}

.btn-primary:disabled {
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
}

.btn-primary:not(:disabled):active {
  transform: translateY(1px) scale(0.99);
  box-shadow: 0 6px 18px rgba(59, 130, 246, 0.65);
  filter: brightness(0.96);
}

.status-ok {
  color: #4ade80;
}

.status-error {
  color: #f97373;
}

.status-warning {
  color: #facc15;
}