:root{color-scheme:dark;font-family:Courier New,monospace;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden;background:#0a0a0a;color:#fafafa}.start-screen{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460)}.start-content{text-align:center;max-width:600px;padding:40px}.start-content h1{font-size:2.5rem;margin-bottom:8px;background:linear-gradient(90deg,#4a90d9,#4ad97a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.start-content>p{color:#ffffff80;margin-bottom:32px;font-size:.9rem}.weapons-preview{display:flex;gap:12px;margin-bottom:28px}.weapon-card{flex:1;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:16px;display:flex;align-items:center;gap:12px;text-align:left}.weapon-icon{width:40px;height:40px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;flex-shrink:0}.weapon-card strong{display:block;font-size:.9rem;margin-bottom:2px}.weapon-stats{font-size:.7rem;color:#fff6}.controls-info{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:8px;padding:20px;margin-bottom:28px;text-align:left}.controls-info h3{font-size:.85rem;color:#fff9;margin-bottom:12px;text-transform:uppercase;letter-spacing:.1em}.controls-info ul{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px}.controls-info li{font-size:.85rem;color:#ffffffb3}kbd{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:4px;padding:2px 8px;font-size:.75rem;font-family:Courier New,monospace;margin-right:4px}.start-btn{background:linear-gradient(135deg,#4a90d9,#4ad97a);color:#fff;border:none;padding:14px 48px;font-size:1.1rem;font-family:Courier New,monospace;font-weight:700;border-radius:8px;cursor:pointer;transition:transform .2s,box-shadow .2s;text-transform:uppercase;letter-spacing:.05em}.start-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #4a90d94d}