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input:focus{border-color:#667eea;outline:none}.form-group input:disabled{cursor:not-allowed;background-color:#f5f5f5}.btn-primary{color:#fff;cursor:pointer;background:#667eea;border:none;border-radius:8px;width:100%;margin-top:.5rem;padding:.75rem;font-size:1rem;font-weight:600;transition:background .2s}.btn-primary:hover:not(:disabled){background:#5568d3}.btn-primary:disabled{opacity:.6;cursor:not-allowed}@media (max-width:640px){.letter-display{font-size:4.5rem}.app-header h1{font-size:1.25rem}.levels-grid{grid-template-columns:1fr}.letters-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}.card-letter{min-height:150px;font-size:8rem}.test-header h1{font-size:1.25rem}.progress-info{flex-direction:column;align-items:flex-start}.letters-forms-grid{direction:rtl;grid-template-columns:1fr;gap:1rem}.letter-forms-card{padding:1rem}.letter-base{font-size:3rem}.letter-forms-grid{grid-template-columns:repeat(2,1fr);gap:.75rem}.letter-form-display{min-height:60px;font-size:2.5rem}.letter-form-label{font-size:.75rem}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}
