:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa}.shell{min-height:100vh;display:grid;place-items:center;padding:2rem}.game-container{max-width:420px;width:100%;display:flex;flex-direction:column;align-items:center;gap:1.25rem}.title{margin:0;font-size:2rem;font-weight:700;letter-spacing:-.03em;text-align:center;color:#e2c541;text-shadow:0 0 20px rgba(226,197,65,.3)}.diamond-icon{font-size:1.8rem;color:#4af;text-shadow:0 0 12px rgba(68,170,255,.5)}.stats-bar{display:flex;justify-content:space-between;width:100%;gap:.75rem}.stat{flex:1;display:flex;flex-direction:column;align-items:center;padding:.6rem .5rem;border-radius:.5rem;background:#ffffff0a;border:1px solid rgba(255,255,255,.08)}.stat-label{font-size:.65rem;text-transform:uppercase;letter-spacing:.15em;color:#ffffff73}.stat-value{font-size:1.25rem;font-weight:700;font-variant-numeric:tabular-nums}.lives{display:flex;gap:.2rem;font-size:1.1rem}.life-active{color:#e25555;text-shadow:0 0 8px rgba(226,85,85,.5)}.life-lost{color:#ffffff26}.message{text-align:center;font-size:.9rem;min-height:1.5em;color:#ffffffb3;padding:.4rem .75rem;border-radius:.4rem;background:#ffffff08;width:100%}.message.win{color:#4afe7a;background:#4afe7a14;border:1px solid rgba(74,254,122,.2);text-shadow:0 0 10px rgba(74,254,122,.3)}.message.lose{color:#e25555;background:#e2555514;border:1px solid rgba(226,85,85,.2);text-shadow:0 0 10px rgba(226,85,85,.3)}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem;width:100%}.tile{aspect-ratio:1;border:2px solid rgba(255,255,255,.1);border-radius:.6rem;background:#ffffff0a;color:#ffffff4d;font-size:1.6rem;font-weight:700;cursor:pointer;transition:all .2s ease;display:grid;place-items:center}.tile.hidden:hover:not(:disabled){background:#ffffff14;border-color:#fff3;transform:scale(1.04)}.tile.hidden:active:not(:disabled){transform:scale(.96)}.tile.diamond{background:#44aaff1f;border-color:#4af6;color:#4af;font-size:2rem;text-shadow:0 0 15px rgba(68,170,255,.6);animation:sparkle .4s ease;cursor:default}.tile.rock{background:#e255551a;border-color:#e255554d;color:#e25555;font-size:2rem;animation:shake .3s ease;cursor:default}.tile.last-clicked.diamond{box-shadow:0 0 20px #4af6}.tile.last-clicked.rock{box-shadow:0 0 20px #e2555566}@keyframes sparkle{0%{transform:scale(.7);opacity:.5}50%{transform:scale(1.15)}to{transform:scale(1);opacity:1}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.restart-btn{margin-top:.5rem;padding:.7rem 2rem;font-size:1rem;font-weight:600;border:1px solid rgba(68,170,255,.3);border-radius:.5rem;background:#44aaff1a;color:#4af;cursor:pointer;transition:all .2s ease}.restart-btn:hover{background:#4af3;border-color:#44aaff80;box-shadow:0 0 15px #4af3}.legend{display:flex;gap:1.5rem;font-size:.75rem;color:#ffffff59;margin-top:.25rem}