.engineering-display-area{background:#f8f9fa;border-radius:12px;justify-content:flex-end;align-items:center;min-height:56px;margin-bottom:12px;padding:1.1rem;font-size:1.5rem;display:flex}.engineering-current-input{color:#1e2a40;text-align:right;letter-spacing:1.5px;word-break:break-all;width:100%;font-size:2.2em;font-weight:700}.engineering-keypad{grid-template-columns:repeat(8,1fr);gap:6px;width:100%;display:grid}.engineering-keypad .game-btn{width:100%;min-width:0;min-height:44px;margin:0;padding:0;font-size:1.08em}.engineering-keypad .game-btn-secondary{background:linear-gradient(45deg,#b6b8b9,#cbcbcb)}.engineering-keypad .game-btn-success{background:linear-gradient(45deg,#2ecc71,#27ae60)}@media (width<=600px){.engineering-card{max-width:97vw}.engineering-current-input{font-size:1.48em}.engineering-keypad .game-btn{min-height:44px;font-size:.98em}}