* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f5f5; display: flex; align-items: center;
  justify-content: center; min-height: 100vh;
}
.card {
  background: white; padding: 2rem; border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1); width: 100%; max-width: 380px;
}
h1 { font-size: 1.25rem; margin-bottom: 1.5rem; color: #111; }
label { display: block; font-size: 0.85rem; color: #555; margin-bottom: 0.25rem; }
input {
  width: 100%; padding: 0.5rem 0.75rem; border: 1px solid #ddd;
  border-radius: 4px; font-size: 0.95rem; margin-bottom: 1rem;
}
button {
  width: 100%; padding: 0.6rem; background: #7C3AED; color: white;
  border: none; border-radius: 4px; font-size: 0.95rem; cursor: pointer;
}
button:hover { background: #6D28D9; }
.error { color: #DC2626; font-size: 0.85rem; margin-bottom: 1rem; }