@import"https://fonts.googleapis.com/css2?family=Rajdhani:wght@500;600;700&display=swap";*{margin:0;padding:0;box-sizing:border-box}body{background:#0d1117;overflow:hidden;font-family:Rajdhani,Segoe UI,system-ui,sans-serif}#game-container{position:relative;z-index:1;width:100vw;height:100vh}#game-container canvas{background:transparent!important}.app-bg{position:fixed;top:0;right:0;bottom:0;left:0;background:url(/start-background.png) center center / cover no-repeat;filter:blur(1px) brightness(.45) saturate(1.05);transform:scale(1.03);z-index:0}.app-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;background:radial-gradient(ellipse 90% 70% at 50% 35%,rgba(78,140,205,.1),transparent 55%),radial-gradient(ellipse 80% 60% at 50% 100%,rgba(232,120,40,.08),transparent 50%),linear-gradient(180deg,#080a1259,#080a12b8,#080a12e6);pointer-events:none}#start-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:flex;align-items:center;justify-content:center;overflow-y:auto;padding:24px 16px;background:transparent}.start-bg,.start-overlay{display:none}.start-content{position:relative;z-index:2;width:min(720px,100%);display:flex;flex-direction:column;align-items:center;gap:16px}.start-logo{display:block;width:min(520px,92vw);height:auto;border:none;background:none;box-shadow:none}.start-tagline{font-size:1rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:#d4a574;text-align:center;text-shadow:0 2px 16px rgba(0,0,0,.9)}.start-panel{width:100%;padding:20px 22px;border-radius:12px;background:#0d1117d1;border:1px solid rgba(48,54,61,.9);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 16px 40px #00000059;display:flex;flex-direction:column;gap:10px}.start-panel input{width:100%;padding:11px 14px;border-radius:8px;border:1px solid #30363d;background:#161b22f2;color:#e6edf3;font-family:inherit;font-size:1rem;font-weight:500;transition:border-color .15s,box-shadow .15s}.start-panel input::placeholder{color:#6e7681}.start-panel input:focus{outline:none;border-color:#6a9fd8;box-shadow:0 0 0 3px #6a9fd833}#start-btn{width:100%;margin-top:4px;padding:14px 24px;border:none;border-radius:8px;background:linear-gradient(180deg,#8b5a2b,#6b4423);border:1px solid rgba(212,165,116,.45);color:#f0f6fc;font-family:inherit;font-size:1.15rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;cursor:pointer;transition:transform .12s,filter .12s,box-shadow .12s;box-shadow:0 4px 16px #00000059,inset 0 1px #ffffff1f}#start-btn:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 8px 24px #6b442380,inset 0 1px #ffffff26}#start-btn:disabled{opacity:.65;cursor:wait}.start-meta{text-align:center;font-size:.85rem;color:#8b949e;line-height:1.5}.start-meta .challenge{color:#6a9fd8;font-weight:600}.start-meta .online{color:#3fb950}.start-meta .offline{color:#d29922}.start-tabs{display:flex;gap:4px;margin-top:4px;padding:4px;border-radius:10px;background:#0d1117a6;border:1px solid rgba(48,54,61,.8)}.start-tabs .tab{padding:10px 20px;cursor:pointer;border-radius:7px;font-size:.95rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#8b949e;transition:color .15s,background .15s}.start-tabs .tab:hover{color:#c9d1d9}.start-tabs .tab.active{color:#e6edf3;background:#6a9fd824;box-shadow:inset 0 0 0 1px #6a9fd84d}#leaderboard-panel{width:100%;margin-top:4px;padding:16px;max-height:280px;overflow-y:auto;border-radius:12px;background:#0d1117d1;border:1px solid rgba(48,54,61,.9);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}#leaderboard-panel button{margin:4px;padding:6px 12px;background:#21262d;color:#e6edf3;border:1px solid #30363d;border-radius:6px;cursor:pointer;font-family:inherit;font-weight:600;font-size:.85rem;letter-spacing:.04em}#leaderboard-panel button:hover{border-color:#6a9fd8;color:#6a9fd8}.hidden{display:none!important}