*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:#000;font-family:"Segoe UI",Tahoma,Geneva,Verdana,sans-serif;color:#fff;-webkit-tap-highlight-color:rgba(0,0,0,0);user-select:none}.hidden{display:none !important}#upload-screen{display:flex;align-items:center;justify-content:center;width:100%;height:100%;position:fixed;inset:0;z-index:10}.upload-content{text-align:center;padding:2rem}.upload-content h1{font-size:clamp(1.4rem,5vw,2.4rem);font-weight:700;margin-bottom:.5rem;letter-spacing:-0.02em}.upload-hint{font-size:1.1rem;color:#888;margin-bottom:2rem}.upload-zone{display:inline-flex;flex-direction:column;align-items:center;gap:.6rem;padding:2rem 3rem;border:2px dashed #444;border-radius:1rem;cursor:pointer;transition:border-color .2s,background .2s}.upload-zone:hover,.upload-zone:focus-within{border-color:lime;background:rgba(0,255,0,.04)}.upload-icon{font-size:2.5rem}.upload-label{font-size:1rem;color:#aaa}#hud{display:flex;align-items:center;justify-content:center;gap:1.5rem;padding:.75rem 1rem;padding-right:4rem;position:relative;z-index:5}.hud-item{display:flex;flex-direction:column;align-items:center;gap:.15rem}.hud-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:#888}.hud-value{font-size:1.6rem;font-weight:700;font-variant-numeric:tabular-nums}.hud-timer .hud-value{font-size:2rem;color:lime;min-width:2.5ch;text-align:center}.hud-btn{background:none;border:1px solid #444;border-radius:.5rem;color:#888;font-size:1.2rem;padding:.3rem .6rem;cursor:pointer;transition:color .2s,border-color .2s;position:absolute;right:1rem}.hud-btn:hover{color:#fff;border-color:#888}#game-screen{display:flex;flex-direction:column;align-items:center;width:100%;height:100%}#board-container{flex:1;display:flex;align-items:center;justify-content:center;width:100%;max-width:700px;padding:0 1rem 1rem}#board-container svg{width:100%;height:auto;display:block}.dummy-group{cursor:none}.dummy-mover{transform-box:fill-box;transition:transform .3s cubic-bezier(0.34, 1.56, 0.64, 1)}.dummy-mover.falling{transition:transform .25s cubic-bezier(0.55, 0, 1, 0.45)}.hit-flash{opacity:0;pointer-events:none}.hit-flash.active{animation:flashPulse .15s ease-out}@keyframes flashPulse{0%{opacity:.9}100%{opacity:0}}.bonk-text{opacity:0;pointer-events:none}.bonk-text.active{animation:bonkFloat .6s ease-out forwards}@keyframes bonkFloat{0%{opacity:1;transform:translateY(0)}100%{opacity:0;transform:translateY(-30px)}}#ko-overlay{position:fixed;inset:0;z-index:20;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.85);animation:koFadeIn .4s ease-out}@keyframes koFadeIn{0%{opacity:0}100%{opacity:1}}.ko-content{text-align:center}.ko-text{font-size:clamp(4rem,18vw,10rem);font-weight:900;letter-spacing:.05em;color:#f22;text-shadow:0 0 40px rgba(255,0,0,.6),0 0 80px rgba(255,0,0,.3);animation:koPulse 1.5s ease-in-out infinite alternate}@keyframes koPulse{0%{text-shadow:0 0 40px rgba(255,0,0,.6),0 0 80px rgba(255,0,0,.3)}100%{text-shadow:0 0 60px rgba(255,0,0,.8),0 0 120px rgba(255,0,0,.5)}}.ko-stats{font-size:1.3rem;color:#ccc;margin:1rem 0 2rem}.action-btn{display:block;margin:.75rem auto;padding:.8rem 2.5rem;font-size:1.2rem;font-weight:700;border:none;border-radius:.6rem;cursor:pointer;transition:transform .15s,box-shadow .15s;text-transform:uppercase;letter-spacing:.06em;background:lime;color:#000;box-shadow:0 0 20px rgba(0,255,0,.3)}.action-btn:hover{transform:scale(1.05);box-shadow:0 0 30px rgba(0,255,0,.5)}.action-btn:active{transform:scale(0.97)}.secondary-btn{background:rgba(0,0,0,0);color:#888;border:1px solid #444;box-shadow:none;font-size:.95rem;padding:.5rem 1.5rem}.secondary-btn:hover{color:#fff;border-color:#888;box-shadow:none;transform:none}body.game-active{cursor:none}body.game-active .action-btn,body.game-active .hud-btn,body.game-active .secondary-btn{cursor:pointer}#hammer-cursor{position:fixed;top:0;left:0;width:70px;height:auto;pointer-events:none;z-index:999;transform-origin:50% 95%;transform:rotate(45deg);transition:transform .08s ease-out;will-change:transform}#hammer-cursor img{display:block;width:100%;height:auto;pointer-events:none;user-select:none;-webkit-user-drag:none}#hammer-cursor.hammering{transform:rotate(90deg);transition:transform .06s ease-in}