*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
--bg-1:#060614;--bg-2:#0d0d24;--bg-3:#12122e;
--accent:#00f5d4;--accent-2:#00d4aa;--accent-glow:rgba(0,245,212,.4);
--gold:#ffd700;--gold-glow:rgba(255,215,0,.4);
--danger:#ff4757;--purple:#a855f7;
--text:#e8e8f0;--text-dim:#8888a0;--text-bright:#fff;
--card:rgba(255,255,255,.04);--card-hover:rgba(255,255,255,.08);
--border:rgba(255,255,255,.08);--border-bright:rgba(0,245,212,.2);
}
body{font-family:'Inter',sans-serif;background:var(--bg-1);color:var(--text);min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.bg-orbs{position:fixed;inset:0;overflow:hidden;z-index:0}
.orb{position:absolute;border-radius:50%;filter:blur(80px);opacity:.15;animation:float 20s ease-in-out infinite}
.orb-1{width:400px;height:400px;background:var(--accent);top:-100px;left:-100px}
.orb-2{width:350px;height:350px;background:var(--purple);bottom:-100px;right:-50px;animation-delay:-7s}
.orb-3{width:300px;height:300px;background:var(--danger);top:50%;left:50%;transform:translate(-50%,-50%);animation-delay:-14s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(50px,-30px) scale(1.1)}66%{transform:translate(-30px,40px) scale(.95)}}
.game-wrapper{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:16px;padding:20px;max-width:100%}
.game-header{text-align:center}
.game-title{font-family:'Orbitron',sans-serif;font-size:2.5rem;font-weight:900;letter-spacing:4px;background:linear-gradient(135deg,var(--accent),var(--accent-2),var(--purple));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 0 40px var(--accent-glow)}
.game-subtitle{font-size:.75rem;letter-spacing:3px;color:var(--text-dim);text-transform:uppercase;margin-top:4px}
.hud{display:flex;align-items:center;gap:12px;padding:12px 20px;background:var(--card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:16px;box-shadow:0 8px 32px rgba(0,0,0,.3)}
.hud-item{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:60px}
.hud-label{font-size:.65rem;letter-spacing:1.5px;color:var(--text-dim);font-weight:600}
.hud-value{font-family:'Orbitron',sans-serif;font-size:1.25rem;font-weight:700;color:var(--text-bright);transition:all .3s ease}
.hud-divider{width:1px;height:28px;background:var(--border)}
.combo-item .hud-value{color:var(--gold)}
.combo-active{animation:comboPulse .3s ease}
@keyframes comboPulse{0%{transform:scale(1)}50%{transform:scale(1.3);text-shadow:0 0 20px var(--gold-glow)}100%{transform:scale(1)}}
.canvas-container{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 0 0 1px var(--border-bright),0 0 60px rgba(0,245,212,.1),0 20px 60px rgba(0,0,0,.5)}
#gameCanvas{display:block;background:var(--bg-2)}
.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(6,6,20,.85);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:opacity .3s ease,visibility .3s ease;z-index:10}
.overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}
.overlay-content{text-align:center;padding:30px;animation:overlayIn .4s ease}
@keyframes overlayIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.overlay-icon-wrapper{width:80px;height:80px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;background:var(--card);border:1px solid var(--border-bright);border-radius:50%;font-size:2.5rem;box-shadow:0 0 30px var(--accent-glow)}
.overlay-title{font-family:'Orbitron',sans-serif;font-size:1.5rem;font-weight:700;color:var(--text-bright);margin-bottom:12px;letter-spacing:1px}
.overlay-text{font-size:.875rem;color:var(--text-dim);line-height:1.6;margin-bottom:20px}
.overlay-text kbd{display:inline-block;padding:2px 8px;background:var(--card);border:1px solid var(--border);border-radius:6px;font-family:'Inter',sans-serif;font-size:.75rem;color:var(--accent);margin:0 2px}
.overlay-features{display:flex;justify-content:center;gap:20px;margin-bottom:24px}
.feature{display:flex;flex-direction:column;align-items:center;gap:4px}
.feature-icon{font-size:1.5rem}
.feature-text{font-size:.7rem;color:var(--text-dim)}
.btn-primary{font-family:'Orbitron',sans-serif;font-size:.875rem;font-weight:700;letter-spacing:2px;padding:14px 36px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--bg-1);border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 20px var(--accent-glow);position:relative;overflow:hidden}
.btn-primary::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,transparent,rgba(255,255,255,.3),transparent);transform:translateX(-100%);transition:transform .5s ease}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow)}
.btn-primary:hover::before{transform:translateX(100%)}
.btn-primary:active{transform:translateY(0)}
.controls-bar{display:flex;align-items:center;gap:12px}
.btn-control{display:flex;align-items:center;gap:6px;padding:8px 16px;background:var(--card);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:10px;color:var(--text);font-family:'Inter',sans-serif;font-size:.8rem;font-weight:500;cursor:pointer;transition:all .2s ease}
.btn-control:hover{background:var(--card-hover);border-color:var(--border-bright)}
.btn-icon{font-size:1rem}
.speed-display{display:flex;align-items:center;gap:6px;padding:8px 16px;background:var(--card);border:1px solid var(--border);border-radius:10px}
.speed-label{font-size:.7rem;color:var(--text-dim);letter-spacing:1px}
.speed-value{font-family:'Orbitron',sans-serif;font-size:.8rem;color:var(--accent);font-weight:700}
.settings-panel{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:300px;background:rgba(13,13,36,.95);backdrop-filter:blur(20px);border:1px solid var(--border-bright);border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.5);z-index:20;transition:all .3s ease}
.settings-panel.hidden{opacity:0;visibility:hidden;transform:translate(-50%,-50%) scale(.9)}
.settings-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}
.settings-header h3{font-family:'Orbitron',sans-serif;font-size:1rem;letter-spacing:1px}
.btn-close{background:none;border:none;color:var(--text-dim);font-size:1.2rem;cursor:pointer;transition:color .2s}
.btn-close:hover{color:var(--danger)}
.settings-body{padding:16px 20px}
.setting-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0}
.setting-label{font-size:.85rem;color:var(--text)}
.toggle{position:relative;width:44px;height:24px}
.toggle input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;inset:0;background:var(--border);border-radius:12px;cursor:pointer;transition:.3s}
.toggle-slider::before{content:'';position:absolute;width:18px;height:18px;left:3px;top:3px;background:var(--text-dim);border-radius:50%;transition:.3s}
.toggle input:checked+.toggle-slider{background:var(--accent)}
.toggle input:checked+.toggle-slider::before{transform:translateX(20px);background:var(--bg-1)}
.difficulty-selector{display:flex;gap:4px;background:var(--card);border:1px solid var(--border);border-radius:8px;padding:3px}
.diff-btn{padding:5px 12px;background:none;border:none;border-radius:6px;color:var(--text-dim);font-size:.75rem;font-weight:500;cursor:pointer;transition:all .2s}
.diff-btn.active{background:var(--accent);color:var(--bg-1)}
.dpad{display:none;grid-template-columns:repeat(3,56px);grid-template-rows:repeat(3,56px);gap:4px;margin-top:8px}
.dpad-btn{background:var(--card);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:12px;color:var(--accent);font-size:1.2rem;cursor:pointer;transition:all .15s ease;display:flex;align-items:center;justify-content:center}
.dpad-btn:active{background:var(--accent);color:var(--bg-1);transform:scale(.95)}
.dpad-up{grid-column:2;grid-row:1}.dpad-left{grid-column:1;grid-row:2}.dpad-right{grid-column:3;grid-row:2}.dpad-down{grid-column:2;grid-row:3}
.controls-hint{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--text-dim)}
.control-key{font-family:'Orbitron',sans-serif;color:var(--accent);font-weight:600}
.control-label{color:var(--text-dim)}.control-sep{color:var(--border)}
.gameover-stats{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;padding:16px;background:var(--card);border:1px solid var(--border);border-radius:12px}
.stat-row{display:flex;justify-content:space-between;align-items:center;font-size:.875rem}
.stat-row span{color:var(--text-dim)}.stat-row strong{font-family:'Orbitron',sans-serif;color:var(--text-bright)}
.new-record{color:var(--gold);font-size:.875rem;font-weight:600;margin-bottom:16px;animation:recordPulse 1s ease infinite}
@keyframes recordPulse{0%,100%{opacity:1;text-shadow:0 0 10px var(--gold-glow)}50%{opacity:.7;text-shadow:0 0 20px var(--gold-glow)}}
@media(max-width:600px){.game-title{font-size:1.75rem}.hud{gap:8px;padding:10px 14px}.hud-item{min-width:45px}.hud-value{font-size:1rem}.dpad{display:grid}.controls-hint{display:none}.controls-bar{flex-wrap:wrap;justify-content:center}}
@media(max-width:400px){.game-title{font-size:1.4rem;letter-spacing:2px}.hud-divider:nth-of-type(n+3){display:none}.hud-item:nth-of-type(n+3){display:none}}