@import"https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;800;900&family=Share+Tech+Mono&display=swap";:root{--cyan: #00f2ff;--cyan-dim: rgba(0, 242, 255, .15);--cyan-glow: 0 0 12px rgba(0, 242, 255, .6), 0 0 40px rgba(0, 242, 255, .15);--magenta: #ff00ff;--magenta-glow: 0 0 12px rgba(255, 0, 255, .6), 0 0 40px rgba(255, 0, 255, .15);--green: #39ff14;--gold: #ffd700;--bg-deep: #030308;--bg-panel: rgba(8, 12, 20, .85);--border-glow: rgba(0, 242, 255, .25);--text-primary: #e0f7ff;--text-dim: rgba(200, 230, 255, .5);--font-display: "Orbitron", sans-serif;--font-mono: "Share Tech Mono", "Courier New", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;overflow:hidden;background:var(--bg-deep);font-family:var(--font-mono);color:var(--text-primary);-webkit-font-smoothing:antialiased}body{background:radial-gradient(ellipse at 20% 50%,rgba(0,242,255,.04) 0%,transparent 60%),radial-gradient(ellipse at 80% 30%,rgba(255,0,255,.03) 0%,transparent 50%),radial-gradient(ellipse at 50% 100%,rgba(0,242,255,.02) 0%,transparent 40%),var(--bg-deep)}body:before{content:"";position:fixed;inset:0;background:linear-gradient(rgba(0,242,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,242,255,.03) 1px,transparent 1px);background-size:60px 60px;pointer-events:none;z-index:0;animation:gridDrift 20s linear infinite}@keyframes gridDrift{0%{transform:translate(0)}to{transform:translate(60px,60px)}}body:after{content:"";position:fixed;bottom:-20%;left:-10%;width:120%;height:40%;background:radial-gradient(ellipse at center,rgba(0,242,255,.06) 0%,transparent 70%);pointer-events:none;z-index:0}#boot-screen{position:fixed;inset:0;z-index:1000;background:var(--bg-deep);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:24px;transition:opacity .8s ease-out}#boot-screen.fade-out{opacity:0;pointer-events:none}#boot-lines{font-family:var(--font-mono);font-size:14px;color:var(--cyan);text-shadow:var(--cyan-glow);line-height:2;text-align:left;min-width:440px}#boot-lines .line{opacity:0;transform:translateY(6px);transition:opacity .3s ease,transform .3s ease}#boot-lines .line.visible{opacity:1;transform:translateY(0)}#boot-lines .line.ok:after{content:" [OK]";color:var(--green)}#boot-lines .line.status-ready{color:var(--green);font-weight:700;font-size:16px;margin-top:8px;text-shadow:0 0 12px rgba(57,255,20,.6)}#boot-progress{width:440px;height:3px;background:#00f2ff1a;border-radius:2px;overflow:hidden}#boot-progress-bar{height:100%;width:0%;background:linear-gradient(90deg,var(--cyan),var(--magenta));box-shadow:0 0 12px var(--cyan);transition:width .3s ease-out;border-radius:2px}#hud{position:fixed;top:24px;left:24px;z-index:100;display:flex;flex-direction:column;gap:6px;opacity:0;transform:translate(-20px);transition:opacity .6s ease,transform .6s ease}#hud.visible{opacity:1;transform:translate(0)}#hud-title{font-family:var(--font-display);font-size:15px;font-weight:800;letter-spacing:4px;color:var(--cyan);text-shadow:var(--cyan-glow);text-transform:uppercase;padding-bottom:10px;border-bottom:1px solid var(--border-glow);margin-bottom:6px}.hud-stat{display:flex;align-items:baseline;gap:10px;font-family:var(--font-mono);font-size:13px}.hud-label{color:var(--text-dim);letter-spacing:2px;font-size:11px;min-width:60px}.hud-value{font-family:var(--font-display);font-size:22px;font-weight:600;letter-spacing:2px;color:var(--text-primary);text-shadow:0 0 6px rgba(0,242,255,.3)}#hud-score-value{color:var(--cyan);text-shadow:var(--cyan-glow)}#hud-level-value{color:var(--green);text-shadow:0 0 10px rgba(57,255,20,.4)}#hud-combo{margin-top:8px;font-family:var(--font-display);font-size:26px;font-weight:900;letter-spacing:3px;color:var(--magenta);text-shadow:var(--magenta-glow);opacity:0;transform:scale(.5);transition:opacity .2s ease,transform .3s cubic-bezier(.34,1.56,.64,1)}#hud-combo.active{opacity:1;transform:scale(1)}#hud-combo.pulse{animation:comboPulse .5s ease}@keyframes comboPulse{0%{transform:scale(1)}50%{transform:scale(1.25);filter:brightness(1.5)}to{transform:scale(1)}}#game-over-overlay{position:fixed;inset:0;z-index:900;background:#030308eb;backdrop-filter:blur(12px);display:none;flex-direction:column;justify-content:center;align-items:center;gap:24px}#game-over-overlay.visible{display:flex;animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}#game-over-title{font-family:var(--font-display);font-size:42px;font-weight:900;letter-spacing:8px;color:#f34;text-shadow:0 0 20px rgba(255,51,68,.5),0 0 60px rgba(255,51,68,.2);text-transform:uppercase}#game-over-score{font-family:var(--font-mono);font-size:18px;color:var(--text-dim)}#game-over-score span{color:var(--cyan);font-family:var(--font-display);font-size:28px;text-shadow:var(--cyan-glow)}#restart-btn{margin-top:16px;padding:14px 48px;background:transparent;border:1px solid var(--cyan);color:var(--cyan);font-family:var(--font-display);font-size:14px;font-weight:600;letter-spacing:4px;text-transform:uppercase;cursor:pointer;transition:all .25s ease;position:relative;overflow:hidden}#restart-btn:hover{background:#00f2ff1a;box-shadow:var(--cyan-glow);transform:translateY(-2px)}#restart-btn:active{transform:translateY(0)}#level-up-flash{position:fixed;inset:0;z-index:800;background:radial-gradient(circle,rgba(0,242,255,.15) 0%,transparent 70%);pointer-events:none;opacity:0;transition:opacity .3s ease}#level-up-flash.flash{animation:levelFlash .8s ease}@keyframes levelFlash{0%{opacity:0}20%{opacity:1}to{opacity:0}}canvas{position:fixed;inset:0;z-index:1}