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

body {
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #f5f5f5;
  padding: 2rem;
}

.container {
  max-width: 640px;
  margin: 0 auto;
}

h1 {
  margin-bottom: 1rem;
}

h2 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

p {
  margin-bottom: 0.75rem;
}

a {
  color: #2563eb;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  color: #fff;
  background: #1a1a1a;
}

.btn:hover {
  background: #333;
}

.btn-danger {
  background: #dc2626;
}

.btn-danger:hover {
  background: #b91c1c;
}

.btn-github {
  background: #24292e;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

.message {
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  background: #dbeafe;
  color: #1e40af;
}

.error {
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  background: #fee2e2;
  color: #991b1b;
}

.key-box {
  background: #1a1a1a;
  color: #22c55e;
  padding: 0.75rem 1rem;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9rem;
  word-break: break-all;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.key-box code {
  flex: 1;
}

.key-box .btn {
  flex-shrink: 0;
  font-size: 0.8rem;
  padding: 0.25rem 0.5rem;
  background: #333;
}

.warning {
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.9rem;
}

.status-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-active {
  background: #dcfce7;
  color: #166534;
}

.status-expired {
  background: #fee2e2;
  color: #991b1b;
}

.card {
  background: #fff;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  border: 1px solid #e5e7eb;
}

.actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.header-links {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-size: 0.9rem;
}

hr {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin: 1rem 0;
}