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li:last-child{margin-bottom:0}.puzzle-points{text-align:center;font-size:1.1rem;font-weight:600;color:var(--accent-primary);margin-top:20px}.puzzle-login-prompt{text-align:center;background:#0000001a;padding:15px;border-radius:8px;margin-top:20px;font-size:.95rem;border:1px dashed rgba(255,255,255,.2)}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-10px)}40%,80%{transform:translate(10px)}}@media (max-width: 768px){.chess-puzzle-container{padding:15px}.puzzle-header{flex-direction:column;align-items:flex-start}.difficulty-selector{width:100%;justify-content:space-between}.puzzle-description{font-size:1rem}.puzzle-board{margin-bottom:20px}.puzzle-controls{flex-direction:column}.puzzle-button{width:100%}.solved-message{font-size:1.2rem}}.opening-explorer{max-width:1200px;width:100%;margin:0 auto;padding:20px;color:var(--text-primary)}.opening-explorer-header{text-align:center;margin-bottom:30px}.opening-explorer-header 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2rem;text-align:center;background:linear-gradient(#0009,#0000004d),url(/chess-learn-bg.jpg);background-size:cover;background-position:center;margin-bottom:2rem;position:relative;opacity:0;transform:translateY(-20px);transition:opacity .8s ease,transform .8s ease}.learn-hero.loaded{opacity:1;transform:translateY(0)}.learn-hero h1{font-size:3rem;color:var(--text-primary);margin-bottom:1rem;text-shadow:0 0 15px rgba(0,0,0,.8)}.learn-hero .subtitle{font-size:1.2rem;max-width:700px;margin:0 auto;color:var(--text-secondary);text-shadow:0 0 10px rgba(0,0,0,.8)}.learning-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;max-width:1200px;margin:0 auto 4rem;padding:0 2rem;opacity:0;transform:translateY(20px);transition:opacity .8s ease,transform .8s ease}.learning-cards.loaded{opacity:1;transform:translateY(0)}.card{background:var(--card-bg);border-radius:15px;overflow:hidden;box-shadow:0 10px 30px #00000026;padding:2rem;display:flex;flex-direction:column;align-items:center;text-align:center;cursor:pointer;position:relative;transition:all .5s ease;min-height:380px;border:1px solid var(--border-light)}.card:before{content:"";position:absolute;top:0;left:0;width:100%;height:5px;background:var(--gradient-accent);transform:scaleX(0);transform-origin:left;transition:transform .5s ease}.card:hover{transform:translateY(-10px);box-shadow:0 20px 40px #0003}.card:hover:before{transform:scaleX(1)}.card-icon{font-size:3.5rem;margin-bottom:1.5rem;transition:transform .3s ease}.game-analysis-card .card-icon{color:#e63946}.interactive-learning-card .card-icon{color:#457b9d}.advanced-techniques-card .card-icon{color:#2a9d8f}.card:hover .card-icon{transform:scale(1.2)}.card h2{font-size:1.8rem;margin-bottom:1rem;color:var(--accent-primary);position:relative;padding-bottom:.5rem}.card h2:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:50px;height:2px;background:var(--accent-primary)}.card p{margin-bottom:1.5rem;color:var(--text-secondary);line-height:1.6}.card-hover-info{opacity:0;max-height:0;overflow:hidden;transition:all .5s ease;width:100%}.card:hover .card-hover-info{opacity:1;max-height:200px}.card-hover-info ul{list-style-type:none;padding:0;margin-bottom:1.5rem;text-align:left}.card-hover-info ul li{position:relative;padding:.5rem 0 .5rem 1.5rem}.card-hover-info ul li:before{content:"•";position:absolute;left:0;color:var(--accent-primary)}.explore-button{padding:.8rem 1.5rem;background:var(--accent-primary);color:#fff;border:none;border-radius:50px;font-weight:500;transition:all .3s ease;cursor:pointer;box-shadow:0 5px 15px #e639464d}.explore-button:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 8px 20px #e6394666}.back-to-cards{display:flex;align-items:center;gap:.5rem;background:var(--card-bg);color:var(--text-primary);border:1px solid var(--border-light);border-radius:8px;padding:.8rem 1.5rem;margin:0 auto 2rem;cursor:pointer;transition:all .3s ease;font-size:1rem;font-weight:500;box-shadow:0 4px 12px #0000001a}.back-to-cards:hover{background:var(--accent-primary);color:#fff;transform:translate(-5px)}.back-icon{font-size:1.2rem;font-weight:700}.tab-content{margin:0 auto;transition:opacity .5s ease;animation:fadeIn .5s ease}.subscription-box{margin:4rem auto;max-width:800px;text-align:center;background:linear-gradient(135deg,#e639461a,#1d35571a);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:2.5rem;border-radius:20px;border:1px solid var(--border-light);box-shadow:0 10px 30px #0003;opacity:0;transform:translateY(20px);transition:opacity .8s ease,transform .8s ease}.subscription-box.loaded{opacity:1;transform:translateY(0)}.subscription-content{display:flex;flex-direction:column;align-items:center}.subscription-box h2{color:var(--accent-primary);margin-bottom:1rem;font-size:1.8rem}.subscription-box p{margin-bottom:1.5rem;max-width:600px;font-size:1.1rem;color:var(--text-secondary)}.subscribe-button{padding:.8rem 2rem;background:var(--accent-primary);color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:1rem;font-weight:500;transition:all .3s ease;box-shadow:0 5px 15px #e639464d}.subscribe-button:hover{background:var(--accent-primary-dark);transform:translateY(-3px);box-shadow:0 8px 20px #e6394666}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 992px){.learning-cards{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.learn-hero h1{font-size:2.2rem}.learn-hero .subtitle{font-size:1rem}.learning-cards{grid-template-columns:1fr;padding:0 1rem}.card{min-height:auto;padding:1.5rem}.card-hover-info{opacity:1;max-height:none}.subscription-box{padding:1.5rem;margin:2rem 1rem}}.piece-page{height:100vh;background-size:cover;background-position:center;color:var(--text-primary);display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;-webkit-backdrop-filter:brightness(.6);backdrop-filter:brightness(.6)}.piece-page h1{font-size:4rem;margin-bottom:1rem;color:var(--accent-primary)}.piece-page p{font-size:1.5rem;max-width:600px;padding:0 20px;color:var(--text-secondary)}.piece-page a{margin-top:2rem;padding:10px 20px;background:#0009;color:var(--text-primary);text-decoration:none;border-radius:10px;border:1px solid var(--border-light)}.piece-container{display:flex;flex-direction:column;align-items:center;padding:2.5rem;margin:2rem auto;max-width:850px;background:var(--card-bg);border-radius:15px;box-shadow:var(--shadow-strong);animation:fadeIn .8s ease-in;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);opacity:0;transform:translateY(20px);transition:opacity .5s ease,transform .5s ease;border:1px solid var(--border-light);position:relative;overflow:hidden}.piece-container.loaded{opacity:1;transform:translateY(0)}.piece-container h1,.piece-container h2{color:var(--accent-primary);margin-bottom:1.8rem;font-size:3rem;animation:slideDown .5s ease-out;text-shadow:0 0 15px rgba(230,57,70,.5);letter-spacing:2px;font-weight:600;position:relative}.piece-container h1:after,.piece-container h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:60px;height:3px;background:var(--gradient-accent);border-radius:3px}.piece-container p{color:var(--text-secondary);line-height:1.7;margin-top:1.5rem;font-size:1.2rem;animation:fadeIn 1s ease-in .3s backwards;text-shadow:1px 1px 2px rgba(0,0,0,.5);max-width:700px}.piece-container img,.piece-image{max-width:350px;height:auto;border-radius:12px;box-shadow:0 8px 20px #00000080;transition:transform .4s ease,box-shadow .4s ease;animation:scaleIn .7s ease-out;display:block;filter:drop-shadow(0 0 10px rgba(255,255,255,.2));border:2px solid var(--border-light);position:relative;z-index:1}.piece-container img:hover,.piece-image:hover{transform:scale(1.05);box-shadow:0 8px 24px #00000080;border-color:var(--accent-primary-soft)}.piece-container:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-image:linear-gradient(45deg,rgba(255,255,255,.03) 25%,transparent 25%),linear-gradient(-45deg,rgba(255,255,255,.03) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(255,255,255,.03) 75%),linear-gradient(-45deg,transparent 75%,rgba(255,255,255,.03) 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px;border-radius:15px;z-index:-1}.piece-container img:before{content:"";position:absolute;top:-5px;left:-5px;right:-5px;bottom:-5px;background:var(--gradient-accent);z-index:-1;border-radius:14px;opacity:0;transition:opacity .3s ease}.piece-container img:hover:before{opacity:1}@keyframes slideDown{0%{transform:translateY(-30px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes scaleIn{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}.piece-details{display:flex;flex-wrap:wrap;justify-content:space-around;margin-top:2.5rem;width:100%;gap:1.5rem;animation:fadeIn 1.2s ease-in .6s backwards}.detail-item{background:#1c294299;padding:1.8rem;border-radius:12px;flex:1;min-width:200px;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);box-shadow:0 4px 12px #0003;transition:transform .3s ease,box-shadow .3s ease,background-color .3s ease;border:1px solid var(--border-light);position:relative;overflow:hidden}.detail-item:before{content:"";position:absolute;top:0;left:0;width:4px;height:0;background:var(--gradient-accent);transition:height .3s ease}.detail-item:hover{transform:translateY(-5px);box-shadow:0 8px 20px #0000004d;background:#283c5ab3;border-color:var(--accent-primary-soft)}.detail-item:hover:before{height:100%}.detail-item h3{color:var(--accent-primary);margin-bottom:.8rem;font-size:1.3rem;letter-spacing:1px;position:relative;display:inline-block;font-weight:600}.detail-item p{font-size:1rem;margin-top:.5rem;line-height:1.6;color:var(--text-secondary)}.detail-item:hover p{color:var(--text-primary)}.back-button{margin-top:3rem;padding:12px 28px;background:var(--secondary-bg);color:var(--text-primary);text-decoration:none;border-radius:8px;transition:all .3s ease;border:1px solid var(--border-light);font-weight:500;letter-spacing:1px;box-shadow:0 4px 12px #0000004d;position:relative;overflow:hidden;animation:fadeIn 1s ease-in 1s backwards}.back-button:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:var(--gradient-accent);transform:translate(-100%);transition:transform .5s ease;z-index:-1;opacity:.9}.back-button:hover{color:#fff;border-color:var(--accent-primary);transform:translateY(-3px);box-shadow:0 8px 20px #0006}.back-button:hover:before{transform:translate(0)}.piece-strategy{margin-top:2.5rem;width:100%;background:#1c294299;padding:1.8rem;border-radius:12px;box-shadow:0 5px 15px #0000004d;border:1px solid var(--border-light);animation:fadeIn 1.2s ease-in .8s backwards;transform:translateY(20px);opacity:0;transition:all .5s ease;position:relative;overflow:hidden}.piece-strategy:after{content:"";position:absolute;top:0;right:0;width:100%;height:3px;background:var(--gradient-accent);opacity:.5}.loaded .piece-strategy{transform:translateY(0);opacity:1;transition-delay:.8s}.piece-strategy h3{color:var(--accent-primary);margin-bottom:1.2rem;font-size:1.6rem;text-align:center;letter-spacing:1px;position:relative;display:inline-block;font-weight:600}.piece-strategy h3:after{content:"";position:absolute;bottom:-8px;left:0;width:100%;height:2px;background:linear-gradient(to right,transparent,var(--accent-primary),transparent)}.piece-strategy ul{list-style-position:inside;padding-left:1rem;margin-top:1.5rem}.piece-strategy li{margin-bottom:.8rem;line-height:1.6;position:relative;padding-left:1.5rem;font-size:1rem;color:var(--text-secondary);transition:color .3s ease}.piece-strategy li span{position:absolute;left:0;top:2px;color:var(--accent-primary);font-size:1rem;transition:transform .3s ease}.piece-strategy li:hover{color:var(--text-primary)}.piece-strategy li:hover span{transform:scale(1.3);text-shadow:0 0 10px rgba(230,57,70,.5)}.knight-pattern{margin-top:2.5rem;width:100%;max-width:200px;animation:fadeIn 1.5s ease-in .8s backwards;display:flex;flex-direction:column;align-items:center}.knight-movement{width:100%;aspect-ratio:1/1;position:relative;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:4px;background:#0003;padding:8px;border-radius:8px;box-shadow:0 5px 15px #0000004d;border:1px solid rgba(255,255,255,.1)}.loaded .knight-pattern{animation:fadeIn 1.5s ease-in forwards}.center-square{grid-column:2;grid-row:2;background:var(--accent-primary);border-radius:8px;display:flex;align-items:center;justify-content:center;box-shadow:0 0 10px var(--accent-primary);animation:glowPulse 2s infinite;position:relative}.center-square:after{content:"♘";color:#fff;font-size:1.2rem}.target-square{background:#e639464d;border-radius:8px;opacity:0;animation:appearWithDelay .5s ease-out forwards}.loaded .target-square{animation:appearWithDelay .5s ease-out forwards}.n1{grid-column:1;grid-row:1}.n2{grid-column:3;grid-row:1}.n3{grid-column:1;grid-row:3}.n4{grid-column:3;grid-row:3}.movement-caption{font-size:1rem;color:var(--text-secondary);text-align:center;margin-top:10px;font-style:italic}@keyframes appearWithDelay{0%{opacity:0;transform:scale(.7)}70%{opacity:1;transform:scale(1.1)}to{opacity:1;transform:scale(1)}}.rook-movement{margin-top:2.5rem;width:100%;max-width:200px;animation:fadeIn 1.5s ease-in .8s backwards;display:flex;flex-direction:column;align-items:center}.board-visual{width:100%;aspect-ratio:1/1;position:relative;background-image:linear-gradient(45deg,#1c2942 25%,#0f1629 25%),linear-gradient(-45deg,#1c2942 25%,#0f1629 25%),linear-gradient(45deg,#0f1629 75%,#1c2942 75%),linear-gradient(-45deg,#0f1629 75%,#1c2942 75%);background-size:25% 25%;background-position:0 0,0 12.5%,12.5% -12.5%,-12.5% 0;border-radius:8px;overflow:hidden;box-shadow:0 5px 15px #0000004d;border:1px solid rgba(255,255,255,.1)}.loaded .rook-movement{animation:fadeIn 1.5s ease-in forwards}.movement-caption{font-size:.9rem!important;text-align:center;margin-top:10px!important;margin-bottom:0!important;opacity:.8;font-style:italic}.piece-position{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:20%;height:20%;background:var(--accent-primary);border-radius:50%;z-index:2;box-shadow:0 0 10px var(--accent-primary);animation:glowPulse 2s infinite}.piece-position:after{content:"♖";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:1rem}@keyframes glowPulse{0%{box-shadow:0 0 5px #e639464d;background:#e6394633}to{box-shadow:0 0 15px #e6394699;background:#e6394666}}@media (max-width: 768px){.piece-container{padding:1.5rem}.piece-details{flex-direction:column}.detail-item{width:100%;margin-bottom:1rem}.piece-container img,.piece-image{max-width:100%}.piece-container h1,.piece-container h2{font-size:2.2rem}}.piece-content-grid{display:grid;grid-template-columns:minmax(300px,1fr) 2fr;gap:2.5rem;width:100%;margin-top:1rem}.piece-image-section{display:flex;flex-direction:column;align-items:center;position:relative}.piece-image{width:100%;max-width:300px;height:auto;border-radius:12px;box-shadow:0 8px 20px #00000080;transition:transform .4s ease,box-shadow .4s ease;animation:scaleIn .7s ease-out;filter:drop-shadow(0 0 10px rgba(255,255,255,.2));border:2px solid var(--border-light);position:relative;z-index:1}.piece-value-indicator{display:flex;align-items:center;justify-content:center;background:var(--card-bg);border-radius:50%;width:70px;height:70px;position:absolute;bottom:-10px;right:20px;box-shadow:0 4px 10px #0000004d;border:2px solid var(--accent-primary);overflow:hidden;animation:fadeIn 1s ease-in .5s backwards}.piece-symbol{position:absolute;top:5px;left:5px;font-size:1.5rem;color:var(--accent-primary)}.piece-value{font-size:1.8rem;font-weight:700;color:var(--text-primary)}.piece-info-section{display:flex;flex-direction:column;gap:1.5rem}.piece-description{display:flex;flex-direction:column;gap:1rem}.piece-description h2{color:var(--accent-primary);font-size:1.8rem;margin:0;animation:fadeIn .8s ease-in}.piece-description p{margin:.5rem 0;line-height:1.7;font-size:1.1rem}.movement-description,.special-moves{background:#0003;padding:1.2rem;border-radius:10px;border-left:3px solid var(--accent-primary);transition:transform .3s ease,box-shadow .3s ease}.movement-description:hover,.special-moves:hover{transform:translateY(-5px);box-shadow:0 5px 15px #0003}.movement-description h3,.special-moves h3{color:var(--accent-primary);margin:0 0 .8rem;font-size:1.2rem}.movement-description p,.special-moves p{margin:0;font-size:1rem}@media (max-width: 900px){.piece-content-grid{grid-template-columns:1fr;gap:2rem}.piece-image-section{margin-bottom:1rem}.piece-value-indicator{right:50px}}.highlight-row{position:absolute;top:50%;left:0;width:100%;height:20%;background:#e639464d;transform:translateY(-50%);animation:glowPulse 2s infinite alternate}.highlight-column{position:absolute;left:50%;top:0;width:20%;height:100%;background:#e639464d;transform:translate(-50%);animation:glowPulse 2s infinite alternate}.bishop-movement{margin-top:2.5rem;width:100%;max-width:200px;animation:fadeIn 1.5s ease-in .8s backwards;display:flex;flex-direction:column;align-items:center}.diagonal-movement{width:100%;aspect-ratio:1/1;position:relative;background-image:linear-gradient(45deg,#1c2942 25%,#0f1629 25%),linear-gradient(-45deg,#1c2942 25%,#0f1629 25%),linear-gradient(45deg,#0f1629 75%,#1c2942 75%),linear-gradient(-45deg,#0f1629 75%,#1c2942 75%);background-size:25% 25%;background-position:0 0,0 12.5%,12.5% -12.5%,-12.5% 0;border-radius:8px;overflow:hidden;box-shadow:0 5px 15px #0000004d;border:1px solid rgba(255,255,255,.1)}.diagonal{position:absolute;background:#e639464d;transform-origin:center;animation:glowPulse 2s infinite alternate}.diagonal-1{width:141%;height:20%;top:50%;left:50%;transform:translate(-50%,-50%) rotate(45deg)}.diagonal-2{width:141%;height:20%;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-45deg)}.bishop-position{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:20%;height:20%;background:var(--accent-primary);border-radius:50%;z-index:2;box-shadow:0 0 10px var(--accent-primary);animation:glowPulse 2s infinite}.bishop-position:after{content:"♗";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:1rem}.pawn-movement{margin-top:2.5rem;width:100%;max-width:200px;animation:fadeIn 1.5s ease-in .8s backwards;display:flex;flex-direction:column;align-items:center}.pawn-moves{width:100%;aspect-ratio:1/1;position:relative;background-image:linear-gradient(45deg,#1c2942 25%,#0f1629 25%),linear-gradient(-45deg,#1c2942 25%,#0f1629 25%),linear-gradient(45deg,#0f1629 75%,#1c2942 75%),linear-gradient(-45deg,#0f1629 75%,#1c2942 75%);background-size:25% 25%;background-position:0 0,0 12.5%,12.5% -12.5%,-12.5% 0;border-radius:8px;overflow:hidden;box-shadow:0 5px 15px #0000004d;border:1px solid rgba(255,255,255,.1);padding:8px}.board-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:4px;height:100%;width:100%;position:relative}.move-square{background:#0099ff4d;border-radius:6px;animation:glowPulse 2s infinite alternate}.move-square.first{grid-column:2;grid-row:1}.move-square.normal{grid-column:2;grid-row:2}.capture-square{background:#e639464d;border-radius:6px;animation:glowPulse 2s infinite alternate .5s}.capture-square.left{grid-column:1;grid-row:1}.capture-square.right{grid-column:3;grid-row:1}.pawn-position{position:absolute;bottom:5%;left:50%;transform:translate(-50%);width:20%;height:20%;background:var(--accent-primary);border-radius:50%;z-index:2;box-shadow:0 0 10px var(--accent-primary);animation:glowPulse 2s infinite}.pawn-position:after{content:"♙";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:1rem}:root{--king-color: #ffcc00;--king-accent: #ffd700;--king-glow: rgba(255, 215, 0, .5);--queen-color: #ca0dcf;--queen-accent: #e30def;--queen-glow: rgba(227, 13, 239, .5);--rook-color: #0080ff;--rook-accent: #00a2ff;--rook-glow: rgba(0, 162, 255, .5);--bishop-color: #00a86b;--bishop-accent: #00cc88;--bishop-glow: rgba(0, 204, 136, .5);--knight-color: #ff5e00;--knight-accent: #ff8533;--knight-glow: rgba(255, 133, 51, .5);--pawn-color: #a4a4a4;--pawn-accent: #c2c2c2;--pawn-glow: rgba(164, 164, 164, .5)}.piece-container.king h1,.piece-container.king h2,.piece-container.king h3{color:var(--king-color);text-shadow:0 0 15px var(--king-glow)}.piece-container.queen h1,.piece-container.queen h2,.piece-container.queen h3{color:var(--queen-color);text-shadow:0 0 15px var(--queen-glow)}.piece-container.rook h1,.piece-container.rook h2,.piece-container.rook h3{color:var(--rook-color);text-shadow:0 0 15px var(--rook-glow)}.piece-container.bishop h1,.piece-container.bishop h2,.piece-container.bishop h3{color:var(--bishop-color);text-shadow:0 0 15px var(--bishop-glow)}.piece-container.knight h1,.piece-container.knight h2,.piece-container.knight h3{color:var(--knight-color);text-shadow:0 0 15px var(--knight-glow)}.piece-container.pawn h1,.piece-container.pawn h2,.piece-container.pawn h3{color:var(--pawn-color);text-shadow:0 0 15px var(--pawn-glow)}.piece-container.king .piece-value-indicator{border-color:var(--king-color)}.piece-container.queen .piece-value-indicator{border-color:var(--queen-color)}.piece-container.rook .piece-value-indicator{border-color:var(--rook-color)}.piece-container.bishop .piece-value-indicator{border-color:var(--bishop-color)}.piece-container.knight .piece-value-indicator{border-color:var(--knight-color)}.piece-container.pawn .piece-value-indicator{border-color:var(--pawn-color)}.piece-container.king .piece-symbol{color:var(--king-color)}.piece-container.queen .piece-symbol{color:var(--queen-color)}.piece-container.rook .piece-symbol{color:var(--rook-color)}.piece-container.bishop .piece-symbol{color:var(--bishop-color)}.piece-container.knight .piece-symbol{color:var(--knight-color)}.piece-container.pawn .piece-symbol{color:var(--pawn-color)}.queen-movement{margin-top:2.5rem;width:100%;max-width:200px;animation:fadeIn 1.5s ease-in .8s backwards;display:flex;flex-direction:column;align-items:center}.queen-moves{width:100%;aspect-ratio:1/1;position:relative;background-image:linear-gradient(45deg,#1c2942 25%,#0f1629 25%),linear-gradient(-45deg,#1c2942 25%,#0f1629 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var(--rook-glow)}.piece-container.bishop .bishop-position{background:var(--bishop-color);box-shadow:0 0 10px var(--bishop-glow)}.piece-container.knight .center-square{background:var(--knight-color);box-shadow:0 0 10px var(--knight-glow)}.piece-container.pawn .pawn-position{background:var(--pawn-color);box-shadow:0 0 10px var(--pawn-glow)}.tactical-position{position:relative;overflow:hidden;border-radius:12px;margin-top:2.5rem;box-shadow:0 10px 30px #00000040;transform:translateY(0);transition:transform .4s ease,box-shadow .4s ease}.tactical-position:hover{transform:translateY(-10px);box-shadow:0 15px 40px #0006}.tactical-position:hover .tactical-image{transform:scale(1.08);filter:brightness(1.1) contrast(1.2)}.tactical-position:hover .tactic-label{background:#000000d9;color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-weight:500}.piece-quotes{margin-top:2rem;padding:1.5rem;background:#0003;border-radius:10px;position:relative;animation:fadeIn 1.5s ease-in 1.2s backwards}.piece-quotes blockquote{margin:0;padding:0;font-style:italic;line-height:1.6;position:relative;padding-left:2rem}.piece-quotes blockquote:before{content:'"';position:absolute;left:0;top:-1rem;font-size:3rem;opacity:.5;font-family:Georgia,serif}.piece-quotes cite{display:block;margin-top:1rem;text-align:right;opacity:.8;font-size:.9rem}.piece-container.king .movement-description,.piece-container.king .special-moves{border-left-color:var(--king-color)}.piece-container.queen .movement-description,.piece-container.queen .special-moves{border-left-color:var(--queen-color)}.piece-container.rook .movement-description,.piece-container.rook .special-moves{border-left-color:var(--rook-color)}.piece-container.bishop .movement-description,.piece-container.bishop .special-moves{border-left-color:var(--bishop-color)}.piece-container.knight .movement-description,.piece-container.knight .special-moves{border-left-color:var(--knight-color)}.piece-container.pawn .movement-description,.piece-container.pawn .special-moves{border-left-color:var(--pawn-color)}.piece-container.king .piece-strategy li span{color:var(--king-color)}.piece-container.queen .piece-strategy li span{color:var(--queen-color)}.piece-container.rook .piece-strategy li span{color:var(--rook-color)}.piece-container.bishop .piece-strategy li span{color:var(--bishop-color)}.piece-container.knight .piece-strategy li span{color:var(--knight-color)}.piece-container.pawn .piece-strategy li span{color:var(--pawn-color)}@keyframes kingGlowPulse{0%{box-shadow:0 0 5px #ffd7004d;background:#ffd70033}to{box-shadow:0 0 15px #ffd70099;background:#ffd70066}}@keyframes queenGlowPulse{0%{box-shadow:0 0 5px #e30def4d;background:#e30def33}to{box-shadow:0 0 15px #e30def99;background:#e30def66}}@keyframes rookGlowPulse{0%{box-shadow:0 0 5px #00a2ff4d;background:#00a2ff33}to{box-shadow:0 0 15px #00a2ff99;background:#00a2ff66}}@keyframes bishopGlowPulse{0%{box-shadow:0 0 5px #00cc884d;background:#0c83}to{box-shadow:0 0 15px #0c89;background:#0c86}}@keyframes knightGlowPulse{0%{box-shadow:0 0 5px #ff85334d;background:#ff853333}to{box-shadow:0 0 15px #ff853399;background:#ff853366}}@keyframes pawnGlowPulse{0%{box-shadow:0 0 5px #a4a4a44d;background:#a4a4a433}to{box-shadow:0 0 15px #a4a4a499;background:#a4a4a466}}.king-movement{margin-top:2.5rem;width:100%;max-width:200px;animation:fadeIn 1.5s ease-in .8s backwards;display:flex;flex-direction:column;align-items:center}.king-moves{width:100%;aspect-ratio:1/1;position:relative;background-image:linear-gradient(45deg,#1c2942 25%,#0f1629 25%),linear-gradient(-45deg,#1c2942 25%,#0f1629 25%),linear-gradient(45deg,#0f1629 75%,#1c2942 75%),linear-gradient(-45deg,#0f1629 75%,#1c2942 75%);background-size:25% 25%;background-position:0 0,0 12.5%,12.5% -12.5%,-12.5% 0;border-radius:8px;overflow:hidden;box-shadow:0 5px 15px #0000004d;border:1px solid rgba(255,255,255,.1);padding:8px}.king-squares{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:4px;height:100%;width:100%}.king-target{position:relative;overflow:hidden}.king-target:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle,#fc06,#fc00 70%);opacity:0;animation:pulseOpacity 3s infinite;animation-delay:calc(var(--delay, 0) * .2s)}.king-position{background:var(--king-color);border-radius:6px;animation:kingGlowPulse 2s infinite;position:relative}.king-position:after{content:"♚";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:1rem}.piece-position,.queen-position,.king-position,.bishop-position,.knight-position,.pawn-position,.center-square{box-shadow:0 0 20px var(--accent-primary);animation:pieceGlow 3s infinite;z-index:3}.piece-container.king .piece-position,.piece-container.king .king-position,.piece-container.king .center-square{box-shadow:0 0 20px var(--king-color);animation:kingGlow 3s infinite}.piece-container.queen .piece-position,.piece-container.queen .queen-position{box-shadow:0 0 20px var(--queen-color);animation:queenGlow 3s infinite}.piece-container.rook .piece-position{box-shadow:0 0 20px var(--rook-color);animation:rookGlow 3s infinite}.piece-container.bishop .bishop-position{box-shadow:0 0 20px var(--bishop-color);animation:bishopGlow 3s infinite}.piece-container.knight .center-square{box-shadow:0 0 20px var(--knight-color);animation:knightGlow 3s infinite}.piece-container.pawn .pawn-position{box-shadow:0 0 20px var(--pawn-color);animation:pawnGlow 3s infinite}@keyframes pieceGlow{0%{box-shadow:0 0 10px var(--accent-primary)}50%{box-shadow:0 0 30px var(--accent-primary)}to{box-shadow:0 0 10px var(--accent-primary)}}@keyframes kingGlow{0%{box-shadow:0 0 10px var(--king-color)}50%{box-shadow:0 0 30px var(--king-color)}to{box-shadow:0 0 10px var(--king-color)}}@keyframes queenGlow{0%{box-shadow:0 0 10px var(--queen-color)}50%{box-shadow:0 0 30px var(--queen-color)}to{box-shadow:0 0 10px var(--queen-color)}}@keyframes rookGlow{0%{box-shadow:0 0 10px var(--rook-color)}50%{box-shadow:0 0 30px var(--rook-color)}to{box-shadow:0 0 10px var(--rook-color)}}@keyframes bishopGlow{0%{box-shadow:0 0 10px var(--bishop-color)}50%{box-shadow:0 0 30px var(--bishop-color)}to{box-shadow:0 0 10px var(--bishop-color)}}@keyframes knightGlow{0%{box-shadow:0 0 10px var(--knight-color)}50%{box-shadow:0 0 30px var(--knight-color)}to{box-shadow:0 0 10px var(--knight-color)}}@keyframes pawnGlow{0%{box-shadow:0 0 10px var(--pawn-color)}50%{box-shadow:0 0 30px var(--pawn-color)}to{box-shadow:0 0 10px var(--pawn-color)}}@keyframes pulseOpacity{0%{opacity:0}50%{opacity:1}to{opacity:0}}.piece-container.king:before{background-color:#ffcc0008}.piece-container.queen:before{background-color:#e30def08}.piece-container.rook:before{background-color:#00a2ff08}.piece-container.bishop:before{background-color:#00cc8808}.piece-container.knight:before{background-color:#ff853308}.piece-container.pawn:before{background-color:#a4a4a408}.tactic-label{position:absolute;bottom:0;left:0;right:0;background:#000000b3;color:#fff;padding:8px;text-align:center;font-size:.9rem;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);transition:all .3s ease}.queen-moves .highlight-row,.queen-moves .highlight-column,.queen-moves .diagonal{background:#e30def4d}.king-target{background:#ffcc004d;border-radius:6px;animation:kingGlowPulse 2s infinite alternate}.king-target.nw{--delay: 1}.king-target.n{--delay: 2}.king-target.ne{--delay: 3}.king-target.w{--delay: 4}.king-target.e{--delay: 5}.king-target.sw{--delay: 6}.king-target.s{--delay: 7}.king-target.se{--delay: 8}.tactical-image{width:100%;height:auto;border-radius:8px;box-shadow:0 5px 15px #0000004d;border:2px solid rgba(255,255,255,.1);transition:transform .6s ease,filter .6s ease;filter:brightness(.9) contrast(1.1);transform-origin:center}.tactical-position{width:100%;max-width:280px;animation:fadeIn 1.5s ease-in 1s backwards}.piece-container.king .back-button:hover:before{background:linear-gradient(to right,var(--king-color),var(--king-accent))}.piece-container.queen .back-button:hover:before{background:linear-gradient(to right,var(--queen-color),var(--queen-accent))}.piece-container.rook .back-button:hover:before{background:linear-gradient(to right,var(--rook-color),var(--rook-accent))}.piece-container.bishop .back-button:hover:before{background:linear-gradient(to right,var(--bishop-color),var(--bishop-accent))}.piece-container.knight .back-button:hover:before{background:linear-gradient(to right,var(--knight-color),var(--knight-accent))}.piece-container.pawn .back-button:hover:before{background:linear-gradient(to right,var(--pawn-color),var(--pawn-accent))}.piece-container.king .back-button:hover{border-color:var(--king-color)}.piece-container.queen .back-button:hover{border-color:var(--queen-color)}.piece-container.rook .back-button:hover{border-color:var(--rook-color)}.piece-container.bishop .back-button:hover{border-color:var(--bishop-color)}.piece-container.knight .back-button:hover{border-color:var(--knight-color)}.piece-container.pawn .back-button:hover{border-color:var(--pawn-color)}.auth-container{display:flex;justify-content:center;align-items:center;min-height:calc(100vh - 80px);padding:2rem}.auth-card{width:100%;max-width:450px;background:#00000026;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;box-shadow:0 8px 32px #0003;border:1px solid rgba(255,255,255,.1);padding:2rem;color:var(--text-primary);animation:fadeIn .6s ease}.auth-header{text-align:center;margin-bottom:2rem}.auth-header h2{font-size:1.8rem;margin-bottom:.5rem;background:linear-gradient(to right,var(--text-primary),var(--accent-primary));-webkit-background-clip:text;background-clip:text;color:transparent}.auth-header p{color:var(--text-primary);opacity:.8;font-size:.95rem}.auth-error{background:#ff00001a;color:#ff6b6b;padding:.75rem 1rem;border-radius:5px;margin-bottom:1.5rem;border-left:3px solid #ff6b6b;font-size:.9rem}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.9rem;font-weight:500}.form-group input{background:#0003;border:1px solid rgba(255,255,255,.1);padding:.75rem 1rem;border-radius:5px;color:var(--text-primary);transition:all .3s ease}.form-group input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 2px #e6394640}.form-group input::placeholder{color:#fff6}.forgot-password{text-align:right;font-size:.85rem;margin-bottom:.5rem}.forgot-password a{color:var(--accent-primary);text-decoration:none;transition:all .2s ease}.forgot-password a:hover{text-decoration:underline;opacity:.9}.auth-button{background:var(--accent-primary);color:#fff;padding:.85rem 1rem;border:none;border-radius:5px;font-weight:600;cursor:pointer;font-size:1rem;transition:all .3s ease;margin-top:.5rem}.auth-button:hover{background:#d3303e;transform:translateY(-2px);box-shadow:0 5px 15px #e639464d}.auth-button:disabled{background:#cf6d76;cursor:not-allowed;transform:none;box-shadow:none}.separator{display:flex;align-items:center;margin:1.5rem 0;color:var(--text-primary);opacity:.6}.separator:before,.separator:after{content:"";flex:1;height:1px;background:#fff3}.separator span{padding:0 1rem;font-size:.85rem;text-transform:uppercase;letter-spacing:1px}.google-button{display:flex;align-items:center;justify-content:center;gap:.75rem;width:100%;padding:.85rem 1rem;background:#0000004d;border:1px solid rgba(255,255,255,.1);border-radius:5px;color:var(--text-primary);cursor:pointer;transition:all .3s ease}.google-button:hover{background:#0006;transform:translateY(-2px);box-shadow:0 5px 15px #00000026}.google-button:disabled{opacity:.7;cursor:not-allowed;transform:none;box-shadow:none}.google-button svg{min-width:18px}.auth-footer{text-align:center;margin-top:1.5rem;font-size:.9rem;color:var(--text-primary);opacity:.8}.auth-footer a{color:var(--accent-primary);text-decoration:none;font-weight:600;transition:all .2s ease}.auth-footer a:hover{text-decoration:underline}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.auth-container{padding:1rem}.auth-card{padding:1.5rem}}.profile-container{max-width:1000px;width:100%;margin:2rem auto;padding:0 1.5rem;color:var(--text-primary)}.profile-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - 100px);gap:1rem}.profile-loading .loading-spinner{width:40px;height:40px;border:3px solid rgba(0,0,0,.1);border-top:3px solid var(--accent-primary);border-radius:50%;animation:spin 1s linear infinite}.profile-header{display:flex;align-items:center;gap:1.5rem;padding:2rem;background:#00000026;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;box-shadow:0 8px 32px #0000001a;border:1px solid rgba(255,255,255,.05);margin-bottom:2rem}.profile-avatar{background:linear-gradient(45deg,var(--accent-primary),#f94144);width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 5px 15px #e639464d}.avatar-initial{color:#fff;font-size:2.5rem;font-weight:700}.profile-info{flex:1}.profile-info h2{margin:0 0 .5rem;font-size:1.8rem;background:linear-gradient(to right,var(--text-primary),var(--accent-primary));-webkit-background-clip:text;background-clip:text;color:transparent}.profile-email{color:var(--text-primary);opacity:.7;margin:0 0 .5rem;font-size:.9rem}.profile-rating{display:flex;align-items:center;gap:.5rem}.rating-label{font-size:.9rem;opacity:.8}.rating-value{font-size:1.1rem;font-weight:600;color:var(--accent-primary)}.sign-out-button{background:#0003;color:var(--text-primary);border:1px solid rgba(255,255,255,.1);padding:.6rem 1rem;border-radius:5px;cursor:pointer;transition:all .3s ease;font-size:.9rem}.sign-out-button:hover{background:#e639461a;border-color:var(--accent-primary)}.profile-tabs{display:flex;gap:.5rem;margin-bottom:1.5rem;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:.5rem}.tab-button{background:transparent;color:var(--text-primary);opacity:.7;border:none;padding:.75rem 1.25rem;font-size:1rem;cursor:pointer;transition:all .3s ease;position:relative}.tab-button:hover{opacity:1}.tab-button.active{opacity:1;font-weight:600}.tab-button.active:after{content:"";position:absolute;bottom:-.5rem;left:0;width:100%;height:3px;background:var(--accent-primary);border-radius:3px}.profile-content{background:#00000026;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:2rem;box-shadow:0 8px 32px #0000001a;border:1px solid rgba(255,255,255,.05);min-height:400px}.stats-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background:#0000001a;border-radius:10px;padding:1.5rem;text-align:center;border:1px solid rgba(255,255,255,.05);transition:all .3s ease}.stat-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px #0000001a;background:#00000026}.stat-icon{font-size:2rem;margin-bottom:.5rem}.stat-value{font-size:2rem;font-weight:600;margin-bottom:.5rem;color:var(--accent-primary)}.stat-label{font-size:.9rem;opacity:.8}.recent-activity h3{font-size:1.3rem;margin-bottom:1.5rem;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:.5rem}.activity-list{display:flex;flex-direction:column;gap:1rem}.activity-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:#0000001a;border-radius:8px;border-left:3px solid transparent}.activity-item.win{border-left-color:#4caf50}.activity-item.loss{border-left-color:#f44336}.activity-item.draw{border-left-color:#2196f3}.activity-icon{font-size:1.5rem}.activity-details{flex:1}.activity-title{font-weight:600;margin-bottom:.25rem}.activity-meta{font-size:.85rem;opacity:.7;display:flex;justify-content:space-between}.rating-change{font-weight:600}.rating-change.positive{color:#4caf50}.rating-change.negative{color:#f44336}.no-activity{text-align:center;padding:2rem 0}.play-game-button,.play-now-button{background:var(--accent-primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:5px;font-weight:600;cursor:pointer;margin-top:1rem;transition:all .3s ease}.play-game-button:hover,.play-now-button:hover{background:#d3303e;transform:translateY(-3px);box-shadow:0 5px 15px #e639464d}.stats-details h3{font-size:1.3rem;margin-bottom:1.5rem;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:.5rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.5rem;margin-bottom:2.5rem}.stat-detail{background:#0000001a;padding:1rem;border-radius:8px;text-align:center}.stat-name{font-size:.9rem;opacity:.8;margin-bottom:.5rem}.stat-figure{font-size:1.5rem;font-weight:600;color:var(--accent-primary)}.stats-visual{margin-top:2rem}.stats-visual h4{font-size:1.1rem;margin-bottom:1.5rem;text-align:center}.pie-chart{width:200px;height:200px;border-radius:50%;background:#0003;position:relative;margin:0 auto;display:flex;align-items:center;justify-content:center;overflow:hidden}.pie-segment{position:absolute;top:0;left:0;width:100%;height:100%}.pie-segment.wins{background:#4caf50;clip-path:polygon(50% 50%,50% 0,calc(50% + var(--percentage)) 0,50% 50%)}.pie-segment.draws{background:#2196f3;clip-path:polygon(50% 50%,calc(50% + var(--percentage)) 0,100% 0,100% calc(50% + var(--percentage)),50% 50%)}.pie-segment.losses{background:#f44336;clip-path:polygon(50% 50%,100% calc(50% + var(--percentage)),100% 100%,0 100%,0 0,50% 0,50% 50%)}.pie-empty{font-size:.9rem;opacity:.7}.chart-legend{display:flex;justify-content:center;gap:1.5rem;margin-top:1.5rem}.legend-item{display:flex;align-items:center;gap:.5rem}.legend-color{width:15px;height:15px;border-radius:3px}.legend-color.win{background:#4caf50}.legend-color.draw{background:#2196f3}.legend-color.loss{background:#f44336}.legend-label{font-size:.9rem}.games-tab h3{font-size:1.3rem;margin-bottom:1.5rem;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:.5rem}.games-list{display:flex;flex-direction:column;gap:1rem}.game-card{display:flex;align-items:center;gap:1rem;padding:1rem;background:#0000001a;border-radius:8px;position:relative;overflow:hidden}.game-card:before{content:"";position:absolute;top:0;left:0;width:5px;height:100%}.game-card.win:before{background:#4caf50}.game-card.loss:before{background:#f44336}.game-card.draw:before{background:#2196f3}.game-result-icon{font-size:1.5rem;margin-left:.5rem}.game-details{flex:1}.game-result-text{font-weight:600;margin-bottom:.25rem}.game-date{font-size:.85rem;opacity:.7}.game-rating-change{padding:.5rem}.rating-delta{font-weight:600;font-size:1.1rem}.rating-delta.positive{color:#4caf50}.rating-delta.negative{color:#f44336}.no-games{text-align:center;padding:3rem 0}.no-games p{margin-bottom:1.5rem;opacity:.8}@media (max-width: 768px){.profile-header{flex-direction:column;text-align:center;padding:1.5rem 1rem}.profile-info{margin-bottom:1rem}.profile-tabs{overflow-x:auto;padding-bottom:.5rem;margin-bottom:1rem}.profile-content{padding:1.5rem 1rem}.stats-cards{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}.activity-meta{flex-direction:column;gap:.25rem}.chart-legend{flex-direction:column;align-items:center}}#root{min-height:100vh;width:100%;background:transparent;position:relative;z-index:1;overflow-y:auto;overflow-x:hidden}.App{min-height:100vh;width:100%;font-family:Poppins,Segoe UI,sans-serif;padding:0;margin:0;background-color:transparent;position:relative;overflow-x:hidden}.global-bg-video{position:fixed;width:100%;height:100%;object-fit:cover;top:0;left:0;z-index:-1;filter:brightness(1) contrast(1.05);transition:opacity 1.5s ease;opacity:0}.global-bg-video.loaded{opacity:1}.global-overlay{min-height:100vh;width:100%;background:linear-gradient(to bottom,#0000000d,#0000001a,#0000000d);-webkit-backdrop-filter:blur(0px);backdrop-filter:blur(0px);display:flex;flex-direction:column}.main-content{flex:1;padding-top:80px;width:100%}.placeholder-page{min-height:calc(100vh - 80px);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;text-align:center;background:#00000026;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.placeholder-page h1{font-size:2.5rem;margin-bottom:1rem;color:var(--text-primary);background:linear-gradient(to right,var(--text-primary),var(--accent-primary));-webkit-background-clip:text;background-clip:text;color:transparent}.placeholder-page p{font-size:1.2rem;max-width:600px;color:var(--text-primary)}.header{margin-bottom:50px;position:relative;z-index:1}.chessboard-container{margin:50px 0;display:flex;justify-content:center;align-items:center;position:relative;z-index:1}.pieces-section{margin-top:50px;position:relative;z-index:1}.piece-page{padding:50px;position:relative;z-index:1;background:#1c294266;border-radius:15px;margin:20px;box-shadow:var(--shadow-strong);border:1px solid var(--border-light);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.loading-spinner{display:inline-block;width:50px;height:50px;border:3px solid rgba(230,57,70,.3);border-radius:50%;border-top-color:var(--accent-primary);animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}.piece-container::-webkit-scrollbar{width:8px}.piece-container::-webkit-scrollbar-track{background:#1c294233;border-radius:10px}.piece-container::-webkit-scrollbar-thumb{background:var(--accent-primary-soft);border-radius:10px}.action-button{padding:10px 20px;background:var(--gradient-dark);color:var(--text-primary);border:1px solid var(--border-light);border-radius:8px;font-weight:500;transition:all .3s ease;position:relative;overflow:hidden;z-index:1}.action-button:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:var(--gradient-accent);opacity:0;transition:opacity .3s ease;z-index:-1}.action-button:hover{transform:translateY(-3px);box-shadow:0 5px 15px #0000004d;color:#fff;border-color:var(--accent-primary)}.action-button:hover:before{opacity:1}:root{--primary-bg: #0f1629;--secondary-bg: #1c2942;--accent-primary: #e63946;--accent-primary-soft: rgba(230, 57, 70, .7);--accent-secondary: #0077b6;--accent-tertiary: #118ab2;--text-primary: #f1faee;--text-secondary: #a8dadc;--card-bg: rgba(28, 41, 66, .8);--border-light: rgba(255, 255, 255, .15);--shadow-strong: 0 10px 30px rgba(0, 0, 0, .5);--gradient-dark: linear-gradient(135deg, #1c2942 0%, #0f1629 100%);--gradient-accent: linear-gradient(135deg, #e63946 0%, #d62b39 100%);--gradient-cool: linear-gradient(135deg, #0077b6 0%, #118ab2 100%)}html,body{margin:0;padding:0;height:100%;width:100%;overflow-x:hidden}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Poppins,Segoe UI,Roboto,sans-serif;color:var(--text-primary);line-height:1.6;background:transparent}#root{min-height:100vh;width:100%;position:relative}h1,h2,h3,h4,h5,h6{font-weight:600;letter-spacing:.5px}a{color:var(--text-primary);text-decoration:none;transition:all .3s ease}a:hover{color:var(--accent-primary)}:focus{outline:2px solid var(--accent-primary-soft);outline-offset:2px}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--secondary-bg)}::-webkit-scrollbar-thumb{background:var(--accent-tertiary);border-radius:5px;border:2px solid var(--secondary-bg)}::-webkit-scrollbar-thumb:hover{background:var(--accent-primary)}button,.button{padding:.8rem 1.6rem;background:var(--secondary-bg);color:var(--text-primary);border:1px solid var(--border-light);border-radius:8px;font-family:inherit;font-size:1rem;cursor:pointer;transition:all .3s ease}button:hover,.button:hover{background:var(--accent-secondary);transform:translateY(-3px);box-shadow:0 5px 15px #0000004d}.chess-pattern{background-image:linear-gradient(45deg,rgba(255,255,255,.05) 25%,transparent 25%),linear-gradient(-45deg,rgba(255,255,255,.05) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(255,255,255,.05) 75%),linear-gradient(-45deg,transparent 75%,rgba(255,255,255,.05) 75%);background-size:30px 30px;background-position:0 0,0 15px,15px -15px,-15px 0px}.fade-in{animation:fadeIn .8s ease-in}.slide-in{animation:slideIn .5s ease-out}.glass-effect{background:#1c294280;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--border-light);box-shadow:0 8px 32px #0003}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{transform:translate(-30px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@media (max-width: 768px){:root{--card-padding: 1rem}h1{font-size:2rem}h2{font-size:1.5rem}}