body { font-family: sans-serif; background: #F8F4EB; color: #173B2B; display: flex; justify-content: center; align-items: center; min-height: 100vh; margin: 0; }
.installer { background: white; padding: 2rem; border-radius: 8px; box-shadow: 0 4px 12px rgba(23,59,43,0.1); width: 100%; max-width: 600px; }
header { margin-bottom: 2rem; border-bottom: 1px solid #DDD4C5; padding-bottom: 1rem; }
input { display: block; width: 100%; padding: 0.5rem; margin-bottom: 1rem; }
button { background: #B46B3C; color: white; border: none; padding: 0.75rem 1.5rem; cursor: pointer; border-radius: 4px; }