.doom-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:99999;background:#000;display:flex;flex-direction:column;align-items:center;justify-content:center;font-family:Courier New,Courier,monospace;color:#0f0;overflow:hidden}.doom-overlay:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:repeating-linear-gradient(0deg,rgba(0,0,0,.15) 0px,rgba(0,0,0,.15) 1px,transparent 1px,transparent 3px);pointer-events:none;z-index:1}.doom-overlay:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at center,transparent 60%,rgba(0,0,0,.6) 100%);pointer-events:none;z-index:1}.doom-terminal{position:relative;z-index:2;max-width:700px;width:90%;padding:2rem}.doom-terminal-line{margin:0;padding:2px 0;font-size:clamp(.75rem,2vw,1rem);line-height:1.6;white-space:pre-wrap;word-break:break-word;opacity:0;animation:doom-fade-in .1s forwards}.doom-terminal-line.status-ok{color:#0f0}.doom-terminal-line.status-ready{color:#ff0;font-weight:700}.doom-terminal-line.prompt{color:#0cf;animation:doom-pulse 1.2s infinite}.doom-cursor{display:inline-block;width:.6em;height:1em;background:#0f0;vertical-align:text-bottom;animation:doom-blink .7s step-end infinite}.doom-start-btn{display:inline-block;margin-top:1.5rem;padding:.75rem 2rem;background:transparent;border:2px solid #00ff00;color:#0f0;font-family:Courier New,Courier,monospace;font-size:1.1rem;cursor:pointer;text-transform:uppercase;letter-spacing:2px;position:relative;z-index:2;transition:background .2s,color .2s}.doom-start-btn:hover,.doom-start-btn:focus-visible{background:#0f0;color:#000;outline:none}.doom-close-btn{position:absolute;top:1rem;right:1.5rem;z-index:3;background:none;border:1px solid #555;color:#888;font-family:Courier New,Courier,monospace;font-size:.85rem;padding:.3rem .7rem;cursor:pointer;transition:color .2s,border-color .2s}.doom-close-btn:hover,.doom-close-btn:focus-visible{color:#f44;border-color:#f44}.doom-game-container{position:relative;z-index:2;width:100%;max-width:800px;aspect-ratio:4 / 3}.doom-game-container iframe{width:100%;height:100%;border:2px solid #00ff00}.doom-fps{position:absolute;top:.5rem;left:.5rem;z-index:3;color:#ff0;font-family:Courier New,Courier,monospace;font-size:.75rem;background:#000000b3;padding:2px 6px;pointer-events:none}.doom-disclaimer{position:relative;z-index:2;max-width:700px;width:90%;margin-top:1rem;font-size:.6rem;color:#363;text-align:center;line-height:1.4}.doom-hint{color:#ffffff0a;font-size:.6rem;text-align:center;margin-top:3rem;-webkit-user-select:none;user-select:none;pointer-events:none}.doom-glitch{animation:crt-glitch .3s linear}@keyframes doom-fade-in{to{opacity:1}}@keyframes doom-blink{0%,to{opacity:1}50%{opacity:0}}@keyframes doom-pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes crt-glitch{0%{filter:hue-rotate(0deg) brightness(1);transform:translate(0)}20%{filter:hue-rotate(90deg) brightness(1.5);transform:translate(-2px,1px)}40%{filter:hue-rotate(180deg) brightness(.8);transform:translate(2px,-1px)}60%{filter:hue-rotate(270deg) brightness(1.3);transform:translate(-1px,2px)}80%{filter:hue-rotate(360deg) brightness(1);transform:translate(1px,-2px)}to{filter:hue-rotate(0deg) brightness(1);transform:translate(0)}}@media(prefers-reduced-motion:reduce){.doom-terminal-line,.doom-cursor{animation:none;opacity:1}.doom-terminal-line.prompt,.doom-glitch{animation:none}}