*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{color:#f0f0f0;display:flex;background:#1a1a2e;flex-direction:column;align-items: center;gap:1.2rem;min-height:100vh;padding:1.5rem 1rem;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}a{color:#4cff91;text-decoration:none;letter-spacing:.04em;transition:color .15s;font-size:.95rem}a:hover{color:#e0c96e;text-decoration:underline}h1{letter-spacing:.05em;color:#e0c96e;font-size:1.6rem}#puzzle-container{width:100%;max-width:700px}#controls{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem}#controls button{color:#f0f0f0;cursor:pointer;background:#2a2a4a;border:2px solid #555;border-radius:6px;min-width:3rem;padding:.45rem .9rem;transition:background .15s,border-color .15s;font-size:.95rem}#controls button:hover:not(:disabled){background:#3a3a6a;border-color:#aaa}#controls button:disabled{opacity:.35;cursor:not-allowed}#stats{color:#ccc;letter-spacing:.04em;font-size:1rem}#solved-banner{color:#4cff91;letter-spacing:.08em;font-size:1.4rem;font-weight:700}