:root{--bg-gradient:linear-gradient(135deg, #0d1117, #161b22);--board-bg:#1f2937;--glass-bg:#ffffff0d;--glass-border:#ffffff1a;--glass-shadow:0 8px 32px 0 #0000005e;--primary-color:#22c55e;--primary-hover:#16a34a;--secondary-color:#3b82f6;--secondary-hover:#2563eb;--text-primary:#f8fafc;--text-secondary:#94a3b8;--highlight-color:#3b82f680;--selected-color:#22c55e80;--board-bg-size:217% 129%;--board-bg-pos:50.3% 52.0%;--board-transform:scaleX(-1);--board-url:url(/raw-assets/Board.PNG);--piece-rt-size:201% 109%;--piece-rt-pos:50% 50%;--piece-rt-url:url(/raw-assets/Regular%20Turtle%20Piece.PNG);--piece-kt-size:201% 109%;--piece-kt-pos:50% 50%;--piece-kt-url:url(/raw-assets/King%20Turtle%20Piece.PNG);--piece-rs-size:201% 109%;--piece-rs-pos:50% 50%;--piece-rs-url:url(/raw-assets/Regular%20Shredder%20Piece.PNG);--piece-ks-size:101% 101%;--piece-ks-pos:50% 50%;--piece-ks-url:url(/raw-assets/King%20Shredder%20Piece.PNG)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-gradient);color:var(--text-primary);touch-action:manipulation;-webkit-user-select:none;user-select:none;flex-direction:column;min-height:100vh;font-family:Outfit,sans-serif;display:flex;overflow-x:hidden}#app{flex-direction:column;width:100%;max-width:800px;min-height:100vh;margin:0 auto;padding:.5rem;display:flex}.header{text-align:center;background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:16px;margin-bottom:1rem;padding:.5rem}.header h1{background:linear-gradient(90deg,#22c55e,#3b82f6);-webkit-text-fill-color:transparent;text-transform:uppercase;letter-spacing:2px;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem;font-weight:800}.turn-indicator{color:var(--text-secondary);font-size:1.25rem;font-weight:600;transition:color .3s}.turn-indicator.turtles{color:#22c55e}.turn-indicator.shredder{color:#ef4444}.game-container{flex-direction:column;justify-content:center;align-items:center;gap:2rem;width:100%;padding:1rem;display:flex}.board-wrapper{aspect-ratio:1;background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border);width:100%;max-width:100%;box-shadow:var(--glass-shadow);border-radius:16px;flex:1;justify-content:center;align-items:center;padding:.5rem;display:flex}.checkersboard{aspect-ratio:1;box-sizing:border-box;border-radius:8px;grid-template-rows:repeat(8,1fr);grid-template-columns:repeat(8,1fr);width:100%;max-width:800px;display:grid;position:relative;overflow:hidden;box-shadow:0 10px 30px #00000080}.checkersboard:before{content:"";background-image:var(--board-url);background-size:var(--board-bg-size);background-position:var(--board-bg-pos);transform:var(--board-transform);z-index:0;pointer-events:none;position:absolute;inset:0}.square{cursor:pointer;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:relative}.square:before{content:"";pointer-events:none;z-index:10;transition:background-color .2s,box-shadow .2s;position:absolute;inset:0}.square.selected:before{background-color:var(--selected-color);box-shadow:inset 0 0 20px #22c55ecc}.square.hint:before{background-color:var(--highlight-color);border:2px solid #ffffff80;box-shadow:inset 0 0 15px #3b82f6cc}.piece{z-index:20;filter:drop-shadow(0 4px 6px #00000080);pointer-events:none;background-repeat:no-repeat;border-radius:50%;width:70%;height:70%;transition:transform .2s,filter .2s;overflow:hidden}@media (hover:hover){.square:hover .piece{transform:scale(1.05)}}.piece.turtles{background-image:var(--piece-rt-url);background-size:var(--piece-rt-size);background-position:var(--piece-rt-pos)}.piece.turtles.king{background-image:var(--piece-kt-url);background-size:var(--piece-kt-size);background-position:var(--piece-kt-pos)}.piece.shredder{background-image:var(--piece-rs-url);background-size:var(--piece-rs-size);background-position:var(--piece-rs-pos)}.piece.shredder.king{background-image:var(--piece-ks-url);background-size:var(--piece-ks-size);background-position:var(--piece-ks-pos)}.side-panel{flex-direction:column;gap:1.5rem;width:100%;display:flex}@media (width>=768px){.side-panel{width:300px}}.panel-card{background:var(--glass-bg);-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);border-radius:16px;padding:.5rem}.panel-card h3{text-transform:uppercase;letter-spacing:1px;color:var(--text-secondary);margin-bottom:1rem;font-size:1.2rem}.captures{flex-wrap:wrap;gap:.5rem;min-height:40px;display:flex}.captured-icon{filter:grayscale(.5)opacity(.8);background-position:50%;background-repeat:no-repeat;background-size:contain;width:30px;height:30px}.btn{cursor:pointer;text-transform:uppercase;letter-spacing:1px;border:none;border-radius:8px;width:100%;padding:1rem;font-family:inherit;font-size:1.1rem;font-weight:600;transition:all .2s}.primary-btn{background:var(--primary-color);color:#fff;box-shadow:0 4px 15px #22c55e66}@media (hover:hover){.primary-btn:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 6px 20px #22c55e99}}.primary-btn:active{transform:translateY(0)}.modal{z-index:1000;-webkit-backdrop-filter:blur(5px);opacity:1;background:#000000b3;justify-content:center;align-items:center;transition:opacity .3s;display:flex;position:fixed;inset:0}.modal.hidden{opacity:0;pointer-events:none}.modal-content.glass{border:1px solid var(--glass-border);text-align:center;background:#141923d9;border-radius:16px;padding:2rem;transition:transform .3s;transform:translateY(0);box-shadow:0 15px 50px #00000080}.modal.hidden .modal-content{transform:translateY(20px)}.modal h2{margin-bottom:1rem;font-size:2rem}.crop-modal-content{width:100%;max-width:1200px}.editor-layout{gap:2rem;margin-top:1rem;display:flex}.editor-controls{flex:1}.editor-preview-container{background:#000;border-radius:8px;flex:1;justify-content:center;align-items:center;padding:1rem;display:flex}.preview-box{background-color:#222;width:600px;height:600px;position:relative;overflow:hidden;box-shadow:0 0 0 2px #444}.preview-bg{z-index:0;background-repeat:no-repeat;position:absolute;inset:0}.grid-overlay{pointer-events:none;box-sizing:border-box;z-index:1;background-image:linear-gradient(90deg,#f00c 1px,#0000 1px),linear-gradient(#f00c 1px,#0000 1px);background-size:12.5% 12.5%;background-origin:content-box;background-clip:content-box;border:2px solid #f00c;width:100%;height:100%;position:relative}.form-group{margin-bottom:1rem}.form-control{color:#fff;background:#333;border:1px solid #555;width:100%;margin-top:.5rem;padding:.5rem}input[type=range]{width:100%}.close-btn{color:#fff;cursor:pointer;background:0 0;border:none;font-size:2rem;position:absolute;top:10px;right:15px}