*{box-sizing:border-box;margin:0;padding:0}body{font-family:'Segoe UI',sans-serif;background:#0f1117;color:#e0e0e0;min-height:100vh;display:flex;align-items:flex-start;justify-content:center;padding:8px}.card{background:#1a1d27;border:1px solid #2e3248;border-radius:12px;padding:16px;width:100%;margin-top:8px;box-shadow:0 8px 32px rgba(0,0,0,.4)}.home-title{font-size:2.7rem;color:#a78bfa;margin-bottom:4px}.home-subtitle{font-size:1.17rem;color:#6b7280;margin-bottom:20px}.game-card{background:#0f1117;border:1px solid #2e3248;border-radius:10px;padding:14px 16px;cursor:pointer;transition:border-color .2s,background .2s;display:flex;align-items:center;gap:12px}.game-card:hover{border-color:#7c3aed;background:#151720}.game-card .name{font-size:1.5rem;font-weight:600;color:#e0e0e0}.game-icon{width:50px;height:50px;min-width:50px;min-height:50px;border-radius:8px;object-fit:cover;flex-shrink:0;border:2px solid #2e3248;box-sizing:border-box}.game-icon-fallback{width:50px;height:50px;min-width:50px;min-height:50px;border-radius:8px;flex-shrink:0;border:2px solid #2e3248;display:inline-flex;align-items:center;justify-content:center;line-height:1;box-sizing:border-box;font-size:1.5rem}.game-header{display:flex;align-items:center;gap:10px;margin-bottom:4px;flex-wrap:wrap}.game-title{font-size:2.4rem;color:#a78bfa;margin-bottom:12px;display:flex;align-items:center;gap:10px}.back-btn{appearance:none;-webkit-appearance:none;background:#0f1117;border:1px solid #2e3248;border-radius:7px;color:#9ca3af;font-size:1.2rem;padding:5px 10px;cursor:pointer;transition:border-color .2s,color .2s;white-space:nowrap}.back-btn:hover{border-color:#7c3aed;color:#a78bfa}.subtitle{font-size:1.125rem;color:#6b7280;margin-bottom:16px}.note-box{background:#1a1d27;border:1px solid rgba(124,58,237,.27);border-left:3px solid #7c3aed;border-radius:8px;padding:10px 14px;margin-bottom:14px;font-size:1.23rem;color:#c4b5fd}.game-layout{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:stretch}.io-panel{display:flex;flex-direction:column;min-height:0}.action-column{display:flex;flex-direction:column;justify-content:center;gap:10px}label{display:block;font-size:1.08rem;color:#9ca3af;text-transform:uppercase;letter-spacing:.07em;margin-bottom:5px}textarea{width:100%;background:#0f1117;border:1px solid #2e3248;border-radius:8px;color:#e0e0e0;font-family:'Courier New',monospace;font-size:1.23rem;padding:10px 12px;outline:0;transition:border-color .2s;resize:vertical;min-height:200px}textarea:focus{border-color:#7c3aed}.src-toggle{display:flex;gap:8px;margin-bottom:10px}.src-btn{flex:1;padding:8px;border:1px solid #2e3248;border-radius:8px;background:#0f1117;color:#9ca3af;font-size:1.2rem;cursor:pointer;transition:border-color .2s,color .2s}.src-btn.active{border-color:#7c3aed;color:#a78bfa}.src-panel{display:none;flex:1;flex-direction:column}.src-panel.active{display:flex}.file-drop{border:2px dashed #2e3248;border-radius:8px;padding:20px;text-align:center;color:#6b7280;font-size:1.23rem;cursor:pointer;transition:border-color .2s;flex:1;display:flex;align-items:center;justify-content:center;min-height:200px}.file-drop.over,.file-drop:hover{border-color:#7c3aed;color:#a78bfa}.file-status{margin-top:6px;font-size:1.14rem;color:#10b981}.action{padding:13px 18px;border:none;border-radius:8px;font-size:1.15rem;font-weight:600;cursor:pointer;transition:opacity .2s,transform .1s;white-space:nowrap}.action:hover{opacity:.9;transform:translateY(-1px)}.action:active{transform:translateY(0)}.btn-encrypt{background:linear-gradient(135deg,#0ea5e9,#0369a1);color:#fff}.btn-decrypt{background:linear-gradient(135deg,#7c3aed,#5b21b6);color:#fff}.download-btn{display:none;margin-top:8px;width:100%;padding:10px;background:#1a1d27;border:1px solid #2e3248;border-radius:8px;color:#a78bfa;font-size:1.275rem;cursor:pointer;transition:border-color .2s}.download-btn:hover{border-color:#7c3aed}.result-box{width:100%;background:#0f1117;border:1px solid #2e3248;border-radius:8px;padding:10px 12px;font-family:'Courier New',monospace;font-size:1.23rem;min-height:200px;color:#e0e0e0;resize:vertical;outline:0;transition:border-color .2s}.result-box.success{border-color:#10b981}.error-box{display:none;background:#1f0f0f;border:1px solid #ef4444;border-radius:8px;padding:10px 12px;margin-top:8px;font-size:1.23rem;color:#fca5a5}.custom-select{position:relative;display:inline-block}.custom-select-btn{appearance:none;-webkit-appearance:none;background:#0f1117;border:1px solid #2e3248;border-radius:7px;color:#9ca3af;font-size:1.2rem;padding:5px 10px;cursor:pointer;display:flex;align-items:center;gap:6px;white-space:nowrap}.custom-select-btn:hover{border-color:#7c3aed;color:#a78bfa}.custom-select-dropdown{display:none;position:absolute;top:calc(100% + 4px);left:0;background:#1a1d27;border:1px solid #2e3248;border-radius:8px;min-width:240px;z-index:100;overflow:hidden}.custom-select-dropdown.open{display:block}.custom-select-option{display:flex;align-items:center;gap:8px;padding:8px 12px;cursor:pointer;font-size:1.275rem;color:#e0e0e0}.custom-select-option:hover{background:#2e3248}@media (max-width:768px){.home-title{font-size:2rem}.game-title{font-size:1.8rem}.game-layout{grid-template-columns:1fr}.action-column{flex-direction:row}.action-column .action{flex:1}}