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0}.game-nav::-webkit-scrollbar{height:6px}.game-nav::-webkit-scrollbar-track{background:#ecf0f1;border-radius:3px}.game-nav::-webkit-scrollbar-thumb{background:#bdc3c7;border-radius:3px}.game-nav::-webkit-scrollbar-thumb:hover{background:#95a5a6}.game-nav-link{padding:.625rem 1.25rem;background-color:#fff;color:#2c3e50;text-decoration:none;border-radius:4px;box-shadow:0 2px 4px #0000001a;transition:all .2s;font-size:.875rem;font-weight:500;white-space:nowrap}.game-nav-link:hover{background-color:#3498db;color:#fff}.game-nav-link.active{background-color:#2c3e50;color:#fff}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;background-color:#ecf0f1}.loading-spinner{width:40px;height:40px;border:4px solid #bdc3c7;border-top:4px solid #3498db;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes 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#f39c1299}.cell.second-step-option{background-color:#e67e22;animation:pulse-orange 1.5s infinite}@keyframes pulse-orange{0%{box-shadow:0 0 #e67e22b3}70%{box-shadow:0 0 0 8px #e67e2200}to{box-shadow:0 0 #e67e2200}}.cell.cpu-move{background-color:#f1c40f}.board.DaiShogi .cell{width:36px;height:36px}.board.ShoShogi .cell,.board.HonShogi .cell{width:42px;height:42px}.board.ToriShogi .cell,.board.MiniShogi .cell{width:54px;height:54px}.piece{font-size:1.2rem;font-weight:700;-webkit-user-select:none;user-select:none;pointer-events:none}.board.DaiShogi .piece{font-size:1.1rem}.piece-black{color:#2c3e50}.piece-white{color:#b7282e}.controls{display:flex;gap:1rem;justify-content:center;min-width:360px}.btn{padding:.75rem 1.5rem;border:none;border-radius:4px;cursor:pointer;font-size:1rem;transition:background-color 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0;cursor:pointer}.cpu-controls{display:flex;gap:1.5rem;align-items:flex-end;flex-wrap:wrap}.control-group{display:flex;flex-direction:column;gap:.5rem}.control-label{font-size:.875rem;font-weight:500;color:#555;margin:0}.cpu-level-select,.cpu-timeout-select{padding:.5rem;border:1px solid #ddd;border-radius:4px;font-size:.875rem;background-color:#fff;font-family:inherit;min-width:120px}.cpu-level-select:focus,.cpu-timeout-select:focus{outline:none;border-color:#3498db;box-shadow:0 0 0 2px #3498db33}.cpu-level-select:disabled,.cpu-timeout-select:disabled{background-color:#f8f9fa;color:#6c757d;cursor:not-allowed}.setting-group.disabled>label,.setting-group.disabled .control-label{color:#6c757d!important}.captured-pieces{display:flex;position:relative;flex-wrap:wrap;gap:6px;padding:.5rem;background-color:#fff;border:1px solid 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2px;line-height:1;-webkit-user-select:none;user-select:none}.captured-pieces-empty-message{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#bdc3c7;font-size:1rem;pointer-events:none;-webkit-user-select:none;user-select:none;white-space:nowrap}.board-container{display:flex;flex-direction:column;align-items:center;gap:2rem}.home-container{max-width:1024px;margin:0 auto;line-height:1.5}.home-description{font-size:1.125rem;color:#2c3e50;margin:2rem 0 3rem;line-height:1.6}.category-section{margin-bottom:3rem}.category-title{font-size:1.5rem;color:#2c3e50;margin:0 0 1rem;padding-left:.5rem}.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.game-card{background-color:#fff;border-radius:2px;padding:1.5rem;box-shadow:0 2px 4px #0000001a;transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}.game-title{font-size:1.25rem;color:#2c3e50;margin:0 0 1rem}.game-description{color:#7f8c8d;line-height:1.6;margin:0 0 1.5rem;flex:1}.game-actions{display:flex;gap:.75rem}.game-actions .btn{flex:1;text-align:center;text-decoration:none;display:inline-block}.guide-container{max-width:900px;margin:0 auto;line-height:1.8;background-color:#fff;border-radius:2px;box-shadow:0 2px 4px #0000001a}.guide-section{padding:2rem 2rem 0}.guide-section:last-child{padding:2rem 2rem 4rem}.guide-section-title{font-size:1.5rem;color:#2c3e50;margin:0 0 1.5rem}.guide-text{color:#34495e;margin:0 0 1.5rem}.guide-text:last-child{margin-bottom:0}.guide-actions{margin:2rem 0px 1rem}.guide-actions a{text-decoration:none}.guide-link{color:#3498db;text-decoration:none;font-weight:500;transition:color .2s}.guide-link:hover{color:#2980b9;text-decoration:underline}.guide-list{margin:0;padding-left:1.5rem;color:#34495e}.guide-list li{margin-bottom:.75rem}.guide-list li:last-child{margin-bottom:0}@media (max-width: 600px){.app-header{padding:.75rem 1rem}.app-header h1{font-size:1.5rem}.app-main{padding:2rem 1.25rem}.app-footer p{font-size:.75rem}.home-description{font-size:1rem;margin:0 0 2rem}.category-title{font-size:1.5rem}.games-grid{grid-template-columns:1fr;gap:1rem}.game-card{padding:1.25rem}.game-title{font-size:1.25rem}.guide-container{gap:1.5rem}.guide-section-title{font-size:1.25rem}.guide-list{padding-left:1.25rem}.game-nav{gap:.5rem;margin-bottom:1.5rem;justify-content:flex-start}.game-nav-link{padding:.5rem 1rem;font-size:.8rem;flex-shrink:0}.game-content{gap:1.5rem}.game-info{min-width:auto;width:100%;max-width:320px;padding:.75rem 1rem}.game-info-message{font-size:1.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.board{padding:2px;border-radius:4px}.cell{width:28px;height:28px;font-size:.8rem}.board.DaiShogi .cell{width:22px;height:22px}.board.HonShogi .cell,.board.ShoShogi .cell{width:38px;height:38px}.board.ToriShogi .cell,.board.MiniShogi .cell{width:49px;height:49px}.piece{font-size:.9rem}.board.DaiShogi .piece{font-size:.8rem}.board.HonShogi .piece,.board.ShoShogi .piece,.board.ToriShogi .piece,.board.MiniShogi .piece{font-size:1rem}.modal{width:95%;max-width:280px;padding:1.5rem}.new-game-dialog{width:280px;max-width:95vw}.radio-group{gap:1rem}.cpu-controls{gap:1rem;flex-direction:column;align-items:stretch}.cpu-level-select,.cpu-timeout-select{min-width:auto;width:100%}.captured-pieces{width:340px}.captured-piece-item{width:34px;height:34px}.piece-count{font-size:.6rem;padding:0 1px}.captured-pieces-empty-message{font-size:.85rem}.board-container{gap:1rem}}