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0%,#0000 70%);border-radius:7px;position:absolute;inset:-3px;box-shadow:0 0 60px 12px #00e5ff40,inset 0 0 0 1px #00e5ff33}.react-chessboard{z-index:2;background:#030308;border-radius:2px;position:relative;overflow:hidden;box-shadow:inset 0 0 0 1px #00e5ff1f,0 0 50px -4px #00e5ff26}.coach-panel{background:var(--bg-glass);box-shadow:var(--shadow-sm), 0 0 0 1px #00e5ff08 inset, 0 0 35px -8px #00e5ff14, 0 0 55px -12px #ff00aa0f;-webkit-backdrop-filter:blur(22px);border:1px solid #00e5ff24}.coach-insight{border-radius:var(--radius);transition:all .2s var(--ease);background:#06060e99;border:1px solid #00e5ff14;padding:15px 17px}.coach-insight:hover{background:#080812bf;border-color:#00e5ff2e}.why-box{border:1px solid #00e5ff1a;border-left:2.5px solid var(--neon-cyan);background:#04040cb8;border-radius:8px;margin-top:11px;padding:13px 15px;box-shadow:inset 0 0 0 1px #00e5ff06}.why-header{letter-spacing:2px;color:var(--neon-cyan);text-transform:uppercase;opacity:.92;margin-bottom:5px;font-size:9.5px;font-weight:700}.badge-brilliant{color:var(--brilliant);letter-spacing:.5px;background:#bf5af214;border:1px solid #bf5af233;font-weight:600}.badge-great{color:var(--good);letter-spacing:.5px;background:#30d15814;border:1px solid #30d15838;font-weight:600}.badge-good{color:#a1a1a6;background:#8c8c9414;border:1px solid #8c8c942e}.badge-inaccuracy{color:var(--inaccuracy);background:#f1a10d14;border:1px solid #f1a10d38}.badge-mistake{color:var(--mistake);background:#f7630c14;border:1px solid #f7630c38}.badge-blunder{color:var(--blunder);background:#ff453a14;border:1px solid #ff453a38}.btn{letter-spacing:-.01em;border-radius:var(--radius);transition:all .12s var(--ease);border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-primary);justify-content:center;align-items:center;gap:8px;padding:11px 20px;font-size:13px;font-weight:600;display:inline-flex;box-shadow:0 1px #0003}.btn:hover{background:var(--bg-panel);border-color:var(--border-strong);transform:translateY(-1px);box-shadow:0 4px 12px -4px #0006}.btn:active{transition-duration:60ms;transform:scale(.985)}.btn:disabled{opacity:.4;pointer-events:none}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700}.btn-primary:hover{background:var(--accent-strong);border-color:var(--accent-strong)}.btn-danger{color:#ff453a;background:#ff453a08;border-color:#ff453a40}.btn-danger:hover{background:#ff453a14;border-color:#ff453a66}.difficulty-card{transition:all .18s var(--ease);border:1px solid var(--border);background:var(--bg-elevated);border-radius:var(--radius)}.difficulty-card:hover{border-color:var(--border-strong);background:var(--bg-panel)}.difficulty-card.active{border-color:var(--accent);background:#007aff0f;box-shadow:0 0 0 1px #007aff26}.move-list{font-family:var(--font-mono);letter-spacing:-.01em;font-size:12.5px;line-height:1.65}.status-dot{background:var(--accent);width:6px;height:6px;animation:statusPulse 2.2s var(--ease) infinite;border-radius:999px}@keyframes statusPulse{0%,to{opacity:.9}50%{opacity:.35}}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#333338;border-radius:20px}::-webkit-scrollbar-thumb:hover{background:#4a4a50}.game-over-modal{border:1px solid var(--border);box-shadow:var(--shadow);background:#0a0a0b}[data-piece^=w],[data-piece^=b]{-webkit-filter:drop-shadow(.5px 0 #fff)drop-shadow(-.5px 0 #fff)drop-shadow(0 .5px #fff)drop-shadow(0 -.5px #fff)drop-shadow(0 0 1.5px #00e5ff)!important}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.coach-panel .text-\[13\.5px\]{letter-spacing:-.006em;font-size:14px;line-height:1.72}@media (width<=1280px){.chessboard-container{border-radius:18px;padding:14px}}@media (width<=1024px){.chessboard-container{padding:10px}}.react-chessboard-notation,.chessboard .notation,[data-square]~span,div[style*="position: absolute"][style*=font-size]{letter-spacing:.02em;text-shadow:0 1px 2px #000000b3;-webkit-user-select:none;user-select:none;color:#f0f0f5!important;font-size:9.5px!important;font-weight:500!important}.react-chessboard-piece[data-piece^=b] svg,.react-chessboard-piece[data-piece^=b] img{filter:drop-shadow(0 0 .8px #fff)drop-shadow(0 0 .8px #fff)}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}