body { font-family: sans-serif; background: #2c3e50; display: flex; justify-content: center; align-items: center; height: 100vh; margin: 0; }
form { background: #34495e; padding: 30px; border-radius: 8px; display: flex; flex-direction: column; gap: 15px; width: 250px; }
input { padding: 12px; font-size: 16px; border: none; border-radius: 4px; text-align: center; }
button { padding: 12px; font-size: 16px; background: #e74c3c; color: white; border: none; border-radius: 4px; cursor: pointer; font-weight: bold; }
.login-error { color: #ffdddd; text-align: center; font-size: 14px; line-height: 1.35; }