:root{--bg-color: #0b0f19;--panel-bg: rgba(255, 255, 255, .05);--panel-border: rgba(255, 255, 255, .1);--text-color: #f1f5f9;--text-muted: #94a3b8;--accent-color: #008b8b;--accent-secondary: #ff4000;--font-main: "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-main);overflow:hidden}.glass-panel{background:var(--panel-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--panel-border);border-radius:16px}button{cursor:pointer;border:none;font-family:inherit;transition:all .2s ease}.btn-primary{background:linear-gradient(135deg,var(--accent-color),var(--accent-secondary));color:#fff;padding:12px 24px;border-radius:8px;font-weight:600;font-size:1rem;box-shadow:0 4px 15px #008b8b4d}.btn-primary:hover{box-shadow:0 6px 20px #ff400066;transform:translateY(-1px)}.btn-primary:active{transform:translateY(1px)}.setup-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at top right,rgba(0,139,139,.1),transparent 40%),radial-gradient(circle at bottom left,rgba(255,64,0,.1),transparent 40%);padding:2rem}.setup-panel{padding:3rem;width:100%;max-width:600px;box-shadow:0 25px 50px -12px #00000080}.title{font-size:2.5rem;font-weight:800;margin-bottom:.5rem;background:linear-gradient(to right,var(--text-color),var(--text-muted));-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-align:center}.subtitle{text-align:center;color:var(--text-muted);margin-bottom:2.5rem;font-size:1.1rem}.setup-form{display:flex;flex-direction:column;gap:1.5rem}.form-row{display:flex;gap:1.5rem}.form-row .form-group{flex:1}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.9rem;font-weight:500;color:var(--text-muted)}.form-group input{background:#0003;border:1px solid var(--panel-border);padding:.75rem 1rem;border-radius:8px;color:var(--text-color);font-size:1rem;transition:border-color .2s,box-shadow .2s}.form-group input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 2px #008b8b33}.start-btn{margin-top:1rem;padding:1rem;font-size:1.1rem;letter-spacing:.5px}.simulation-container{position:relative;width:100vw;height:100vh;overflow:hidden;background-color:var(--bg-color)}.simulation-canvas{display:block;width:100%;height:100%}.controls-overlay{position:absolute;top:20px;left:20px;padding:1rem 1.5rem;display:flex;flex-direction:column;gap:1rem;z-index:10}.stats p{margin:.25rem 0;font-size:.9rem;color:var(--text-color)}.back-btn{padding:.5rem 1rem;font-size:.9rem}