:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa;overflow:hidden;user-select:none;-webkit-user-select:none}.game-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:12px;position:relative}.game-container.shake{animation:shake .3s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-6px,4px)}40%{transform:translate(6px,-4px)}60%{transform:translate(-4px,6px)}80%{transform:translate(4px,-6px)}}.screen-flash{position:fixed;top:0;right:0;bottom:0;left:0;opacity:.12;pointer-events:none;z-index:100;animation:fadeFlash .15s ease-out forwards}@keyframes fadeFlash{to{opacity:0}}.hud{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:480px;padding:0 4px;gap:8px}.hud-left,.hud-center,.hud-right{display:flex;align-items:center;gap:8px}.hud-center{flex:1;justify-content:center;flex-direction:column;gap:4px}.score-display{display:flex;flex-direction:column;align-items:flex-start}.score-label{font-size:.55rem;letter-spacing:.2em;text-transform:uppercase;color:#fff6;line-height:1}.score-value{font-size:1.6rem;font-weight:800;font-variant-numeric:tabular-nums;line-height:1;color:#4caf50}.combo-display{background:#ffc10726;border:1px solid rgba(255,193,7,.3);padding:2px 8px;border-radius:999px;animation:comboPulse .4s ease-out}@keyframes comboPulse{0%{transform:scale(1.3)}to{transform:scale(1)}}.combo-value{font-size:.7rem;font-weight:700;color:#ffc107;letter-spacing:.05em}.level-badge{font-size:.65rem;font-weight:700;color:#fff9;background:#ffffff0f;padding:2px 10px;border-radius:999px;letter-spacing:.1em}.effect-bar-container{position:relative;width:120px;height:14px;background:#ffffff0f;border-radius:999px;overflow:hidden}.effect-bar{height:100%;border-radius:999px;transition:width .15s linear}.effect-label{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:.5rem;font-weight:700;letter-spacing:.15em;color:#000;text-shadow:0 0 4px rgba(255,255,255,.4)}.hi-score{font-size:.65rem;font-weight:600;color:#ffffff59;letter-spacing:.1em}.board-wrapper{position:relative;border-radius:8px;overflow:hidden;box-shadow:0 0 40px #4caf5014,0 0 80px #0006;border:1px solid rgba(255,255,255,.06)}.game-board{display:block}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#050508d9;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:10}.overlay-content{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;padding:32px}.title{font-size:3rem;font-weight:900;letter-spacing:.2em;margin:0;background:linear-gradient(135deg,#4caf50,#00e676,#76ff03);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:titleGlow 2s ease-in-out infinite alternate}@keyframes titleGlow{0%{filter:drop-shadow(0 0 8px rgba(76,175,80,.3))}to{filter:drop-shadow(0 0 20px rgba(76,175,80,.6))}}.subtitle{margin:0;font-size:.9rem;color:#ffffff73;letter-spacing:.3em;text-transform:uppercase}.controls-info{display:flex;flex-direction:column;gap:4px;font-size:.75rem;color:#ffffff4d}.btn{background:linear-gradient(135deg,#2e7d32,#4caf50);color:#fff;border:none;padding:12px 36px;border-radius:999px;font-size:.85rem;font-weight:700;letter-spacing:.15em;cursor:pointer;transition:all .2s;text-transform:uppercase}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 24px #4caf504d}.btn:active{transform:translateY(0)}.pause-title{font-size:2rem;font-weight:800;margin:0;letter-spacing:.15em;color:#ffffffb3}.gameover-content{gap:12px}.gameover-title{font-size:2rem;font-weight:900;margin:0;letter-spacing:.15em;color:#ff5252}.final-score{font-size:3.5rem;font-weight:900;font-variant-numeric:tabular-nums;color:#fff;line-height:1}.new-record{font-size:.85rem;font-weight:700;color:#ffc107;letter-spacing:.2em;animation:recordPulse .6s ease-in-out infinite alternate}@keyframes recordPulse{0%{opacity:.7;transform:scale(1)}to{opacity:1;transform:scale(1.1)}}.legend{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;padding:8px 0}.legend-item{display:flex;align-items:center;gap:5px;font-size:.6rem;color:#ffffff59;letter-spacing:.05em;text-transform:uppercase}.legend-dot{width:8px;height:8px;border-radius:50%}@media(max-width:540px){.game-board{width:90vw!important;height:auto!important}.title{font-size:2rem}.score-value{font-size:1.2rem}.legend{gap:8px}}