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fadeOutOverlay{0%{opacity:1}to{opacity:0;visibility:hidden}}.scene-container{position:fixed;inset:0;perspective:900px;overflow:hidden}.sound-btn{position:fixed;top:30px;right:30px;-webkit-appearance:none!important;-moz-appearance:none!important;appearance:none!important;background:none!important;background-color:transparent!important;border:none!important;outline:none!important;box-shadow:none!important;padding:0!important;margin:0!important;color:#fff6;font-family:Times New Roman,Times,serif;font-size:.72rem;cursor:pointer;z-index:10001;transition:color .3s ease;pointer-events:auto;letter-spacing:1.5px;text-transform:uppercase}.sound-btn:hover{color:#ffffffd9;background:none!important;border:none!important}.sound-btn.active{color:#fff;background:none!important;border:none!important}.back-btn{position:fixed;bottom:30px;left:30px;font-size:1.1rem;color:#fff;text-decoration:underline;cursor:pointer;z-index:10001;opacity:.7;transition:opacity .3s;pointer-events:auto}.back-btn:hover{opacity:1}.hint{position:fixed;bottom:30px;right:30px;font-size:.85rem;color:#ffffffa6;z-index:10000;transition:opacity .6s ease;pointer-events:none;letter-spacing:.5px}.hint.hidden{opacity:0}.skybox{position:absolute;left:50%;top:50%;width:0;height:0;transform-style:preserve-3d;will-change:transform;z-index:0;pointer-events:none}.skybox-face{position:absolute;width:3000px;height:3000px;left:-1500px;top:-1500px;opacity:1;backface-visibility:hidden;background-color:#07090e}.face-front{transform:translateZ(-1500px)}.face-back{transform:rotateY(180deg) translateZ(-1500px)}.face-right{transform:rotateY(-90deg) translateZ(-1500px)}.face-left{transform:rotateY(90deg) translateZ(-1500px)}.face-top{transform:rotateX(-90deg) translateZ(-1500px)}.face-bottom{transform:rotateX(90deg) translateZ(-1500px)}.world-3d{position:absolute;left:50%;top:50%;width:0;height:0;transform-style:preserve-3d;will-change:transform;z-index:1}.dust-container{position:absolute;left:0;top:0;transform-style:preserve-3d;pointer-events:none}.dust-particle{position:absolute;background:#e6f5ffe6;border-radius:50%;pointer-events:none;backface-visibility:hidden;transform-style:preserve-3d}.network-line-3d{position:absolute;left:0;top:0;height:1px;background:#ffffffe6;transform-origin:0 50%;pointer-events:none;box-shadow:0 0 2px #96c8ff66;backface-visibility:visible}.light-orb{position:absolute;left:0;top:0;width:8px;height:8px;background:#fff;border-radius:50%;pointer-events:none;box-shadow:0 0 6px #fff,0 0 12px #78b4ffcc;backface-visibility:hidden}.art-node{position:absolute;width:135px;padding:8px;background:#0f141cf2;border:1px solid rgba(255,255,255,.45);border-radius:4px;cursor:pointer;transition:border-color .2s,background 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p{color:#ccd;font-size:1rem;margin-bottom:25px}.retro-dialog img{width:100%;max-height:200px;object-fit:cover;margin-bottom:20px;border:1px solid #333}.prompt-buttons{display:flex;justify-content:center;gap:30px}.retro-btn{background:transparent;color:#fff;border:1px solid #fff;padding:10px 25px;font-family:Times New Roman,Times,serif;font-size:1.1rem;cursor:pointer;transition:background .2s,color .2s}.retro-btn:hover{background:#fff;color:#111}