*{margin:0;padding:0;box-sizing:border-box}:root{--primary:#4CAF50;--primary-hover:#45a049;--background:#f9f9f9;--foreground:#333;--error:#d32f2f;--error-light:#ffebee}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--background);color:var(--foreground);line-height:1.6}.nav-bar{background:#1a1a1a;padding:1rem 0;margin-bottom:2rem}.nav-content{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center}.nav-logo{color:white;font-size:1.5rem;text-decoration:none;font-weight:700}.nav-links{display:flex;gap:2rem}.nav-link{color:white;text-decoration:none;padding:.5rem 1rem;border-radius:4px;transition:background-color .3s}.nav-link:hover{background:rgba(255,255,255,.1)}.container{max-width:1200px;margin:0 auto;padding:0 2rem 2rem;min-height:calc(100vh - 80px)}.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:2rem;padding:2rem 0}.game-card{background:white;border-radius:8px;padding:1.5rem;text-decoration:none;color:var(--foreground);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;align-items:center;gap:1rem;box-shadow:0 2px 4px rgba(0,0,0,.05)}.game-card:hover{transform:translateY(-5px);box-shadow:0 4px 12px rgba(0,0,0,.1)}.game-title{font-weight:600}.game-play-button{background:var(--primary);color:white;padding:.5rem 2rem;border-radius:4px;transition:background-color .3s}.game-play-button:hover{background:var(--primary-hover)}.upload-form{max-width:600px;margin:2rem auto;padding:2rem;background:white;border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,.05)}.upload-form h1{margin-bottom:2rem;text-align:center}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500}.form-group input[type=file]{width:100%;padding:1rem;border:2px dashed #ddd;border-radius:4px;cursor:pointer}.form-group input[type=file]:hover{border-color:var(--primary)}.btn{padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:background-color .3s}.btn-primary{background:var(--primary);color:white}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn:disabled{opacity:.7;cursor:not-allowed}.error-message{color:var(--error);background:var(--error-light)}.error-message,.success-message{padding:.75rem;border-radius:4px;margin:1rem 0;text-align:center}.success-message{color:var(--primary);background:rgba(76,175,80,.1)}.unity-container{width:100%;height:calc(100vh - 80px);position:relative;background:black;border-radius:8px;overflow:hidden}.unity-loading{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:white;text-align:center}@media (prefers-color-scheme:dark){:root{--background:#0a0a0a;--foreground:#ededed}.game-card,.upload-form{background:#1a1a1a;color:var(--foreground)}}