:root{color-scheme:dark;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden;background:#050510;color:#fafafa}.game-container{position:relative;width:100vw;height:100vh;overflow:hidden}canvas{display:block;width:100%;height:100%}.hud{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}.hud-top{display:flex;justify-content:space-between;align-items:flex-start;padding:16px 20px}.stat-group{display:flex;flex-direction:column;gap:6px}.stat-label{font-size:.6rem;text-transform:uppercase;letter-spacing:.25em;color:#fff6}.stat-value{font-size:1.6rem;font-weight:700;letter-spacing:-.02em}.stat-value.score{color:#ff2d6a;text-shadow:0 0 20px rgba(255,45,106,.6)}.stat-value.wave{color:#00f0ff;text-shadow:0 0 20px rgba(0,240,255,.6)}.stat-value.kills{color:#b84dff;text-shadow:0 0 20px rgba(184,77,255,.6)}.health-container{position:absolute;bottom:20px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:12px}.health-bar-bg{width:280px;height:14px;background:#ffffff0f;border-radius:7px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}.health-bar-fill{height:100%;border-radius:7px;transition:width .3s ease,background .3s ease;box-shadow:0 0 15px currentColor}.health-bar-fill.high{background:linear-gradient(90deg,#0f8,#00f0ff);color:#0f8}.health-bar-fill.medium{background:linear-gradient(90deg,#fa0,#f60);color:#fa0}.health-bar-fill.low{background:linear-gradient(90deg,#f24,#f06);color:#f24;animation:pulse-health .5s ease-in-out infinite alternate}@keyframes pulse-health{0%{opacity:.7}to{opacity:1}}.health-text{font-size:.85rem;font-weight:700;min-width:40px;text-align:right}.weapon-container{position:absolute;bottom:20px;right:20px;display:flex;flex-direction:column;align-items:flex-end;gap:4px}.weapon-name{font-size:.65rem;text-transform:uppercase;letter-spacing:.2em;color:#ffffff59}.ammo-display{font-size:1.8rem;font-weight:700;color:#fc0;text-shadow:0 0 15px rgba(255,204,0,.5)}.ammo-display.reloading{color:#f60;animation:blink .4s ease-in-out infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.wave-banner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;animation:wave-in .6s cubic-bezier(.16,1,.3,1)}@keyframes wave-in{0%{opacity:0;transform:translate(-50%,-50%) scale(.5)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}.wave-banner h2{font-size:3rem;font-weight:900;text-transform:uppercase;letter-spacing:.15em;color:#00f0ff;text-shadow:0 0 30px rgba(0,240,255,.8),0 0 60px rgba(0,240,255,.4),0 0 100px rgba(0,240,255,.2)}.wave-banner p{font-size:1rem;color:#ffffff80;margin-top:8px;letter-spacing:.15em;text-transform:uppercase}.start-screen{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:20;background:radial-gradient(ellipse at center,#050510d9,#050510f7);pointer-events:all}.start-screen h1{font-size:3.5rem;font-weight:900;text-transform:uppercase;letter-spacing:.1em;background:linear-gradient(135deg,#ff2d6a,#fc0,#00f0ff,#b84dff);background-size:300% 300%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradient-shift 4s ease infinite;text-shadow:none;filter:drop-shadow(0 0 30px rgba(255,45,106,.4))}@keyframes gradient-shift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.start-screen .subtitle{font-size:.85rem;letter-spacing:.3em;text-transform:uppercase;color:#ffffff59;margin-top:12px}.start-btn{margin-top:40px;padding:14px 48px;font-family:inherit;font-size:.9rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;border:2px solid #00f0ff;background:#00f0ff14;color:#00f0ff;border-radius:4px;cursor:pointer;pointer-events:all;transition:all .2s ease;box-shadow:0 0 20px #00f0ff33}.start-btn:hover{background:#00f0ff26;box-shadow:0 0 40px #00f0ff66;transform:scale(1.05)}.controls-hint{margin-top:30px;display:flex;gap:24px;font-size:.7rem;color:#ffffff40;letter-spacing:.1em}.controls-hint kbd{display:inline-block;padding:2px 8px;border:1px solid rgba(255,255,255,.15);border-radius:3px;background:#ffffff0d;color:#ffffff80;font-family:inherit;font-size:.65rem}.game-over{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:20;background:radial-gradient(ellipse at center,#140000d9,#050510f7);pointer-events:all;animation:fade-in .5s ease}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.game-over h1{font-size:3.5rem;font-weight:900;text-transform:uppercase;letter-spacing:.1em;color:#f24;text-shadow:0 0 40px rgba(255,34,68,.6)}.game-over .final-stats{margin-top:24px;display:flex;gap:40px}.game-over .final-stat{text-align:center}.game-over .final-stat .stat-label{font-size:.6rem;text-transform:uppercase;letter-spacing:.25em;color:#ffffff4d}.game-over .final-stat .stat-value{font-size:2rem;font-weight:700;margin-top:4px}.crosshair{position:absolute;pointer-events:none;z-index:15;width:24px;height:24px;transform:translate(-50%,-50%)}.crosshair:before,.crosshair:after{content:"";position:absolute;background:#00f0ffcc;box-shadow:0 0 8px #00f0ff99}.crosshair:before{top:50%;left:0;width:100%;height:2px;transform:translateY(-50%)}.crosshair:after{left:50%;top:0;width:2px;height:100%;transform:translate(-50%)}.damage-flash{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:12;background:radial-gradient(ellipse at center,transparent 40%,rgba(255,0,40,.3));animation:damage-flash .3s ease-out forwards}@keyframes damage-flash{0%{opacity:1}to{opacity:0}}.kill-feed{position:absolute;top:80px;right:20px;display:flex;flex-direction:column;gap:4px;z-index:11}.kill-entry{font-size:.65rem;letter-spacing:.05em;color:#ffffff80;padding:4px 10px;background:#0006;border-radius:3px;border-left:2px solid #b84dff;animation:kill-slide .3s ease-out;white-space:nowrap}@keyframes kill-slide{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}