body{background-color:#111;margin:0;padding:0;overflow:hidden}canvas{display:block}#welcome-screen{z-index:99999;background-blend-mode:normal;color:#fff;text-align:center;opacity:1;box-sizing:border-box;background-color:#000;background-image:url(/SCREEN.jpg);background-position:50%;background-repeat:no-repeat;background-size:cover;justify-content:center;align-items:center;width:100%;height:100%;font-family:Arial,sans-serif;transition:opacity .5s;display:flex;position:fixed;inset:0}#welcome-content{box-sizing:border-box;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#000000b8;border:1px solid #ffd7008c;border-radius:16px;width:min(90%,500px);padding:clamp(20px,4vw,40px);box-shadow:0 8px 40px #000000b3}#welcome-content h1{color:gold;text-shadow:0 2px 12px #000;margin:0 0 18px;font-size:clamp(24px,5vw,42px)}#welcome-content p{margin:12px 0;font-size:16px}#access-form{flex-direction:column;gap:12px;margin-top:20px;display:flex}#access-code{box-sizing:border-box;color:#fff;text-align:center;letter-spacing:5px;background:#141414f2;border:2px solid #666;border-radius:8px;outline:none;width:100%;padding:14px;font-size:22px}#access-code:focus{border-color:gold}#start-btn{color:#fff;cursor:pointer;background:#28a745;border:none;border-radius:8px;padding:15px 24px;font-size:18px;font-weight:700;transition:background .2s,transform .2s}#start-btn:hover{background:#218838;transform:scale(1.02)}#access-error{color:#f55;min-height:20px;margin-bottom:0;font-size:14px;font-weight:700}#access-error:empty{display:none}