body {
  font-family: system-ui, sans-serif;
  margin: 0;
  padding: 0;
  background: #0f172a;
  color: #f8fafc;
}

header,
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem;
}

header h1 {
  margin-bottom: 0.2rem;
}

.note {
  color: #cbd5f5;
  font-size: 0.95rem;
}

.note.small {
  font-size: 0.8rem;
}

.auth-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.auth-actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

section {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.35);
}

label {
  display: block;
  margin-bottom: 0.75rem;
}

input,
textarea {
  width: 100%;
  padding: 0.6rem;
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  background: rgba(15, 23, 42, 0.6);
  color: #f8fafc;
}

button {
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  border: none;
  background: #22d3ee;
  color: #0f172a;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: #0ea5e9;
}

button:disabled {
  background: #6b7280;
  color: #9ca3af;
  cursor: not-allowed;
}

button:disabled:hover {
  background: #6b7280;
}

.danger {
  background: #f97316;
  color: #0f172a;
}

.danger:hover {
  background: #ea580c;
}

.result {
  background: rgba(15, 23, 42, 0.5);
  padding: 0.8rem;
  border-radius: 8px;
  min-height: 2.5rem;
  font-family: "Fira Code", monospace;
  font-size: 0.85rem;
}

footer {
  text-align: center;
  padding: 1rem;
  color: #94a3b8;
  font-size: 0.8rem;
}