:root {
  color-scheme: light dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #f1f5f9;
  color: #172033;
}

.container {
  width: min(100% - 32px, 560px);
  margin: 48px auto;
}

.card {
  padding: 28px;
  background: #ffffff;
  border: 1px solid #dbe2ea;
  border-radius: 16px;
  box-shadow: 0 8px 28px rgb(15 23 42 / 8%);
}

h1 {
  margin-top: 0;
  font-size: 1.8rem;
  line-height: 1.2;
}

h2 {
  margin-top: 0;
  font-size: 1.2rem;
}

.status {
  padding: 12px 14px;
  background: #eff6ff;
  border-radius: 8px;
  overflow-wrap: anywhere;
}

.status.error {
  background: #fef2f2;
  color: #991b1b;
}

button {
  width: 100%;
  min-height: 48px;
  margin: 8px 0 20px;
  padding: 12px 18px;
  border: 0;
  border-radius: 8px;
  background: #1d4ed8;
  color: #ffffff;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.subscriber {
  margin-top: 20px;
  padding: 18px;
  border: 1px solid #dbe2ea;
  border-radius: 10px;
}

.subscriber p {
  overflow-wrap: anywhere;
}

.field-label {
  display: block;
  margin-bottom: 4px;
  color: #64748b;
  font-size: 0.9rem;
}

.hint {
  margin-bottom: 0;
  color: #64748b;
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

code {
  overflow-wrap: anywhere;
}

[hidden] {
  display: none !important;
}

@media (prefers-color-scheme: dark) {
  body {
    background: #0f172a;
    color: #e2e8f0;
  }

  .card {
    background: #172033;
    border-color: #334155;
    box-shadow: none;
  }

  .status {
    background: #1e3a5f;
    color: #e2e8f0;
  }

  .status.error {
    background: #451a1a;
    color: #fecaca;
  }

  .subscriber {
    border-color: #334155;
  }

  .field-label,
  .hint {
    color: #94a3b8;
  }
}