*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:#5c94fc;overflow:hidden;font-family:"Press Start 2P",Courier New,monospace}#mario-canvas{display:block;width:100vw;height:100vh}#start-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d1;display:flex;align-items:center;justify-content:center;z-index:100}#start-overlay.hidden{display:none}#start-card{background:#0a0a1a;border:3px solid #e8b86d;border-radius:10px;padding:40px 44px 38px;text-align:center;max-width:500px;width:92%;color:#fff;box-shadow:0 0 32px #e8b86d40}#mario-logo{font-size:clamp(2rem,5.8vw,3rem);color:#e52521;letter-spacing:5px;line-height:1.2;margin-bottom:14px;text-shadow:0 0 16px #e52521,0 0 32px #e52521}#start-tagline{font-size:clamp(.72rem,1.8vw,.95rem);line-height:1.7;color:#e8b86d;max-width:34ch;margin:0 auto 20px}.controls-hint{display:flex;gap:24px;justify-content:center;margin-bottom:24px;flex-wrap:wrap}.controls-hint span{font-size:clamp(.68rem,1.6vw,.82rem);color:#d5d5d5;display:flex;align-items:center;gap:6px}kbd{background:#1a1a1a;border:2px solid #555;border-radius:4px;padding:4px 8px;font-size:clamp(.64rem,1.6vw,.78rem);color:#fff;font-family:inherit}#start-btn{background:#e52521;color:#fff;border:none;border-radius:6px;padding:14px 34px;font-size:clamp(.72rem,2vw,.92rem);font-family:inherit;cursor:pointer;letter-spacing:1px;transition:background .15s,transform .1s}#start-btn:hover{background:#ff3b38;transform:scale(1.04)}#start-btn:active{transform:scale(.97)}#levelclear-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:100}#levelclear-overlay.hidden{display:none}#levelclear-card{background:#0a0a1a;border:3px solid #f8d000;border-radius:10px;padding:36px 44px;text-align:center;max-width:400px;width:90%;color:#fff;box-shadow:0 0 40px #f8d00059;animation:lc-pop .35s cubic-bezier(.34,1.56,.64,1)}@keyframes lc-pop{0%{transform:scale(.75);opacity:0}to{transform:scale(1);opacity:1}}#lc-firework{font-size:clamp(2.5rem,7vw,4rem);margin-bottom:12px}#levelclear-card h2{font-size:clamp(1.2rem,4vw,1.8rem);color:#f8d000;letter-spacing:3px;margin-bottom:14px;text-shadow:0 0 18px #f8d000,0 0 36px #f8d000}#lc-round{font-size:clamp(.72rem,2vw,.95rem);line-height:1.8;color:#e8b86d;margin-bottom:8px}#lc-score{font-size:clamp(.72rem,2vw,.95rem);line-height:1.8;color:#ccc;margin-bottom:28px}#nextround-btn{background:#f8d000;color:#000;border:none;border-radius:6px;padding:14px 34px;font-size:clamp(.72rem,2vw,.92rem);font-family:inherit;cursor:pointer;letter-spacing:1px;transition:background .15s,transform .1s}#nextround-btn:hover{background:#ffe84d;transform:scale(1.04)}#nextround-btn:active{transform:scale(.97)}#hud{position:fixed;top:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:16px 24px;min-height:68px;background:#000000d1;font-size:clamp(.72rem,2vw,1rem);color:#fff;z-index:50;pointer-events:none;border-bottom:2px solid rgba(232,184,109,.3);text-shadow:0 0 10px rgba(255,255,255,.18);white-space:nowrap}#hud.hidden{display:none}#hud-round{color:#3f9}#hud-score{color:#e8b86d}#hud-coins{color:#f8d000}#hud-lives{color:#f66;letter-spacing:4px}#home-link{position:fixed;bottom:18px;left:18px;color:#e8b86d;font-size:clamp(.72rem,1.8vw,.95rem);text-decoration:none;background:#000000c2;padding:12px 18px;border-radius:10px;z-index:50;border:2px solid rgba(232,184,109,.38);box-shadow:0 0 16px #e8b86d2e;transition:background .2s,transform .12s}#home-link:hover{background:#281400db;transform:scale(1.03)}body:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:repeating-linear-gradient(to bottom,transparent 0px,transparent 2px,rgba(0,0,0,.08) 2px,rgba(0,0,0,.08) 4px);pointer-events:none;z-index:200}