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piece.queen.black{background-image:url(data:image/svg+xml;base64,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)}.cg-wrap piece.king.black{background-image:url(data:image/svg+xml;base64,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)}:root{--color-gold: #d4a843;--color-gold-hover: #e0b854;--color-gold-muted: #3a3520;--color-gold-bg: #2a2518;--color-bg-body: #1a1a1a;--color-bg-surface: #252525;--color-bg-card: #2a2a2a;--color-bg-elevated: #333;--color-bg-elevated-hover: #3a3a3a;--color-border: #444;--color-border-subtle: #333;--color-border-muted: #555;--color-text-primary: #e0e0e0;--color-text-secondary: #ccc;--color-text-muted: #aaa;--color-text-faint: #8e8e8e;--color-text-disabled: #666;--color-success: #4caf50;--color-error: #e05454;--color-error-strong: #e74c3c;--color-warning: #e0b854;--color-selected-bg: #3a4a30;--color-selected-border: #6a4;--overlay-medium: rgba(0, 0, 0, .5);--overlay-heavy: rgba(0, 0, 0, .7);--font-sans: system-ui, -apple-system, sans-serif;--font-mono: "SF Mono", "Menlo", monospace;--text-display: 2.2rem;--text-h1: 1.8rem;--text-h2: 1.5rem;--text-h3: 1.2rem;--text-body: .9rem;--text-body-lg: 1rem;--text-body-xl: 1.1rem;--text-caption: .85rem;--text-label: .8rem;--text-small: .75rem;--text-xs: .7rem;--text-xxs: .65rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-6: 1.5rem;--space-8: 2rem;--space-12: 3rem;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 10px;--radius-full: 50%;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 4px 20px rgba(0, 0, 0, .5);--transition-fast: .15s ease-out;--transition-normal: .2s ease-out;--transition-slow: .3s ease-out}*{margin:0;padding:0;box-sizing:border-box}html{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}html,body{overflow-x:hidden}:focus-visible{outline:2px solid var(--color-gold);outline-offset:2px}:focus:not(:focus-visible){outline:none}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}body{font-family:var(--font-sans);background:var(--color-bg-body);color:var(--color-text-primary);min-height:100vh}#root{display:flex;justify-content:center;padding:var(--space-6)}@keyframes view-fade-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.view-transition{animation:view-fade-in var(--transition-slow);width:100%}.game-layout{display:flex;flex-direction:column;gap:var(--space-4);max-width:1400px;width:100%}.game-header{display:flex;justify-content:space-between;align-items:center}.game-header h1{font-size:1.4rem;color:var(--color-gold)}.header-actions{display:flex;align-items:center;gap:var(--space-3)}.undo-button{padding:.3rem .8rem;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-primary);font-size:var(--text-label);cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast),border-color var(--transition-fast)}.undo-button:hover:not(:disabled){background:var(--color-bg-elevated-hover);border-color:var(--color-gold);transform:scale(1.02)}.undo-button:active:not(:disabled){transform:scale(.98)}.undo-button:disabled{opacity:.3;cursor:not-allowed}.flip-button{width:28px;height:28px;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-primary);font-size:var(--text-body-lg);cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast),border-color var(--transition-fast)}.flip-button:hover{background:var(--color-bg-elevated-hover);border-color:var(--color-gold);transform:scale(1.05)}.flip-button:active{transform:scale(.95)}.volume-control{display:flex;align-items:center;gap:var(--space-1)}.mute-button{background:none;border:none;font-size:var(--text-body-xl);cursor:pointer;padding:.2rem;opacity:.7;transition:opacity var(--transition-fast)}.mute-button:hover{opacity:1}.volume-slider{width:60px;height:4px;-webkit-appearance:none;appearance:none;background:var(--color-border);border-radius:2px;outline:none;cursor:pointer}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:var(--radius-full);background:var(--color-gold);cursor:pointer}.volume-slider::-moz-range-thumb{width:14px;height:14px;border-radius:var(--radius-full);background:var(--color-gold);border:none;cursor:pointer}.starting-gold-picker{display:inline-flex;align-items:center;gap:4px}.starting-gold-select{padding:.3rem .5rem;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-primary);font-size:var(--text-label);cursor:pointer;transition:border-color var(--transition-fast)}.starting-gold-select:hover:not(:disabled){border-color:var(--color-gold)}.starting-gold-select:disabled{opacity:.3;cursor:not-allowed}.starting-gold-select option{background:var(--color-bg-elevated);color:var(--color-text-primary)}.new-game-header-button{padding:.3rem .8rem;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-primary);font-size:var(--text-label);cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast),border-color var(--transition-fast)}.new-game-header-button:hover{background:var(--color-bg-elevated-hover);border-color:var(--color-gold);transform:scale(1.02)}.new-game-header-button:active{transform:scale(.98)}.rules-button{width:28px;height:28px;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-primary);font-size:var(--text-caption);font-weight:700;cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast),border-color var(--transition-fast)}.rules-button:hover{background:var(--color-bg-elevated-hover);border-color:var(--color-gold);transform:scale(1.05)}.rules-button:active{transform:scale(.95)}.game-content{display:flex;gap:var(--space-6)}.board-panel{flex-shrink:0}.board-wrapper{position:relative;width:min(calc(100vh - 8rem),calc(100vw - 28rem));max-width:900px;aspect-ratio:1;flex-shrink:0;border-radius:var(--radius-sm);box-shadow:0 0 0 3px var(--color-bg-elevated),0 0 0 4px var(--color-border),var(--shadow-lg)}.board-container{width:100%;height:100%;border-radius:var(--radius-sm);overflow:hidden}.cg-wrap coords coord{color:var(--color-text-faint);font-size:var(--text-xs);font-family:var(--font-sans);font-weight:600;opacity:.8}.turn-indicator{transition:opacity var(--transition-normal)}.placement-overlay{position:absolute;inset:0;z-index:10;cursor:crosshair}.side-panel{display:flex;flex-direction:column;gap:var(--space-4);width:200px;flex-shrink:0}.turn-indicator{display:flex;flex-direction:column;align-items:flex-end;gap:.2rem}.turn-status{font-weight:700;font-size:.95rem;transition:color var(--transition-normal)}.turn-number{font-size:var(--text-label);color:var(--color-text-faint)}.gold-display{display:flex;justify-content:space-between;gap:var(--space-4);padding:var(--space-3);background:var(--color-bg-surface);border-radius:var(--radius-md)}.gold-player{display:flex;flex-direction:column;align-items:center;gap:.25rem}.gold-player.active{color:var(--color-gold)}.gold-label{font-size:var(--text-small);text-transform:uppercase;letter-spacing:.05em}.gold-amount{font-size:1.3rem;font-weight:700;transition:color var(--transition-normal);display:inline-flex;align-items:center;position:relative}.gold-coin-icon{vertical-align:middle;margin-left:2px}.gold-amount.gold-changed{animation:gold-pulse .3s ease-out}@keyframes gold-pulse{0%{color:#fff;transform:scale(1.15)}to{color:inherit;transform:scale(1)}}@keyframes gold-float-up{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-1.5rem)}}.gold-float{position:absolute;right:-.5rem;top:-.25rem;font-size:var(--text-small);font-weight:700;pointer-events:none;animation:gold-float-up .8s ease-out forwards}.gold-float-positive{color:var(--color-success)}.gold-float-negative{color:var(--color-error)}@keyframes placement-shimmer{0%,to{opacity:.4}50%{opacity:.7}}.cg-wrap square.move-dest{background:radial-gradient(circle,rgba(212,168,67,.4) 25%,transparent 25%)}.shop{background:var(--color-bg-surface);border-radius:var(--radius-md);padding:var(--space-3)}.shop h3{font-size:var(--text-caption);color:var(--color-text-faint);margin-bottom:var(--space-2);text-transform:uppercase;letter-spacing:.05em}.shop-pieces{display:flex;flex-direction:column;gap:.35rem}.shop-piece{display:flex;align-items:center;gap:var(--space-2);width:100%;padding:.4rem .6rem;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-primary);cursor:pointer;font-size:var(--text-caption);transition:background var(--transition-fast),transform var(--transition-fast),border-color var(--transition-fast)}.shop-piece:hover:not(:disabled){background:var(--color-bg-elevated-hover);border-color:var(--color-gold);transform:scale(1.02)}.shop-piece:active:not(:disabled){transform:scale(.98)}.shop-piece.selected{background:var(--color-selected-bg);border-color:var(--color-selected-border)}.shop-piece.disabled,.shop-piece:disabled{opacity:.4;cursor:not-allowed}.piece-symbol{font-size:1.2rem}.piece-label{flex:1}.piece-price{color:var(--color-gold);font-weight:700}.placement-hint{margin-top:var(--space-2);font-size:var(--text-small);color:var(--color-selected-border);font-style:italic}.action-history{background:var(--color-bg-surface);border-radius:var(--radius-md);padding:var(--space-3);width:180px;flex-shrink:0;max-height:min(900px,calc(100vh - 8rem));overflow:hidden;display:flex;flex-direction:column}.action-history h3{font-size:var(--text-caption);color:var(--color-text-faint);margin-bottom:var(--space-2);text-transform:uppercase;letter-spacing:.05em}.history-list{display:flex;flex-direction:column;gap:.15rem;overflow-y:auto;flex:1;min-height:0;font-size:var(--text-label);font-family:var(--font-mono);color:var(--color-text-muted)}.history-list::-webkit-scrollbar{width:6px}.history-list::-webkit-scrollbar-track{background:transparent}.history-list::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}.history-list::-webkit-scrollbar-thumb:hover{background:var(--color-border-muted)}.history-empty{font-size:var(--text-label);color:var(--color-text-disabled);font-style:italic}@keyframes overlay-fade-in{0%{opacity:0}to{opacity:1}}@keyframes dialog-enter{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.game-over-overlay{position:fixed;inset:0;background:var(--overlay-heavy);display:flex;align-items:center;justify-content:center;z-index:100;animation:overlay-fade-in var(--transition-normal)}.game-over-dialog{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-8) var(--space-12);text-align:center;display:flex;flex-direction:column;gap:var(--space-4);animation:dialog-enter var(--transition-normal)}@keyframes victory-entrance{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}@keyframes result-slide-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.game-over-dialog h2{color:var(--color-gold);font-size:var(--text-h2);animation:victory-entrance .4s ease-out}.game-over-result{font-size:var(--text-body-xl);animation:result-slide-in .4s ease-out .1s both}.game-over-rating{animation:result-slide-in .4s ease-out .15s both}.game-over-actions{animation:result-slide-in .4s ease-out .2s both}.new-game-button{padding:.6rem var(--space-6);background:var(--color-gold);color:var(--color-bg-body);border:none;border-radius:var(--radius-md);font-size:var(--text-body-lg);font-weight:700;cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast)}.new-game-button:hover{background:var(--color-gold-hover);transform:scale(1.03)}.new-game-button:active{transform:scale(.97)}.promotion-overlay{position:absolute;inset:0;z-index:20;background:var(--overlay-medium);display:flex;align-items:center;justify-content:center;animation:overlay-fade-in var(--transition-fast)}.promotion-dialog{background:var(--color-bg-card);border:1px solid var(--color-gold);border-radius:var(--radius-lg);padding:var(--space-4);text-align:center;animation:dialog-enter var(--transition-normal)}.promotion-title{font-size:var(--text-caption);color:var(--color-text-faint);margin-bottom:var(--space-2);text-transform:uppercase;letter-spacing:.05em}.promotion-choices{display:flex;gap:var(--space-2)}.promotion-choice{width:60px;height:60px;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--transition-fast),border-color var(--transition-fast),transform var(--transition-fast)}.promotion-choice:hover{background:var(--color-bg-elevated-hover);border-color:var(--color-gold);transform:scale(1.05)}.promotion-choice:active{transform:scale(.95)}.promotion-symbol{font-size:2rem}.rules-overlay{position:fixed;inset:0;background:var(--overlay-heavy);display:flex;align-items:center;justify-content:center;z-index:100;animation:overlay-fade-in var(--transition-normal)}.rules-dialog{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-6) var(--space-8);max-width:420px;max-height:80vh;overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-3);animation:dialog-enter var(--transition-normal)}.rules-dialog h2{color:var(--color-gold);font-size:var(--text-h3);margin-bottom:var(--space-1)}.rules-content{display:flex;flex-direction:column;gap:.6rem}.rules-content h3{font-size:var(--text-caption);color:var(--color-gold);margin-bottom:.15rem}.rules-content p{font-size:.82rem;line-height:1.4;color:var(--color-text-secondary)}.rules-price-table{width:100%;font-size:.82rem;color:var(--color-text-secondary)}.rules-price-table td{padding:.15rem var(--space-2)}.rules-price-table td:last-child{color:var(--color-gold);font-weight:700;text-align:right}.rules-close-button{padding:var(--space-2) var(--space-6);background:var(--color-gold);color:var(--color-bg-body);border:none;border-radius:var(--radius-md);font-size:var(--text-body);font-weight:700;cursor:pointer;align-self:center;transition:background var(--transition-fast),transform var(--transition-fast)}.rules-close-button:hover{background:var(--color-gold-hover);transform:scale(1.03)}.rules-close-button:active{transform:scale(.97)}@media(max-width:900px){#root{padding:var(--space-4)}.game-header h1{font-size:var(--text-h3)}.game-content{flex-direction:column;gap:var(--space-4)}.board-wrapper{width:min(480px,calc(100vw - 2rem))}.side-panel{width:100%}.action-history{width:100%;max-height:200px}.turn-indicator{align-items:flex-start}}.error-message{color:var(--color-error-strong);font-size:var(--text-caption);margin-top:var(--space-2)}.lobby{max-width:420px;margin:0 auto;padding:var(--space-8) var(--space-6);display:flex;flex-direction:column;gap:var(--space-6)}.lobby h1{color:var(--color-gold);font-size:var(--text-h1);text-align:center}.lobby h2{font-size:.95rem;color:var(--color-text-muted);margin-bottom:var(--space-2);display:flex;align-items:center;gap:var(--space-2)}.lobby-section{display:flex;flex-direction:column;gap:var(--space-3)}.lobby-divider{text-align:center;color:var(--color-text-disabled);font-size:var(--text-label);text-transform:uppercase;letter-spacing:.1em;position:relative}.lobby-divider:before,.lobby-divider:after{content:"";position:absolute;top:50%;width:30%;height:1px;background:var(--color-border-subtle)}.lobby-divider:before{left:0}.lobby-divider:after{right:0}.lobby-button{padding:.6rem 1.2rem;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--text-body);font-weight:700;cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast),transform var(--transition-fast)}.lobby-button:active:not(:disabled){transform:scale(.97)}.lobby-button.primary{background:var(--color-gold);color:var(--color-bg-body);border-color:var(--color-gold);padding:var(--space-3) var(--space-6);font-size:var(--text-body-lg);box-shadow:0 2px 8px #d4a8434d}.lobby-button.primary:hover:not(:disabled){background:var(--color-gold-hover);transform:scale(1.03);box-shadow:0 4px 16px #d4a84366}.lobby-button.secondary{background:var(--color-bg-elevated);color:var(--color-text-primary)}.lobby-button.secondary:hover{border-color:var(--color-gold);transform:scale(1.02)}.lobby-button.small{padding:.3rem .8rem;font-size:var(--text-label)}.lobby-button:disabled{opacity:.4;cursor:not-allowed}.lobby-create{display:flex;align-items:center;gap:var(--space-3)}.lobby-create label{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-caption);color:var(--color-text-muted)}.lobby-register{display:flex;gap:var(--space-2)}.lobby-identity{color:var(--color-text-muted);font-size:var(--text-body);padding:var(--space-1) 0}.lobby-identity strong{color:var(--color-gold)}.room-host{color:var(--color-text-muted);font-size:var(--text-label)}.lobby-join{display:flex;gap:var(--space-2)}.lobby-input{flex:1;padding:var(--space-2) var(--space-3);background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:var(--text-body);font-family:var(--font-mono);letter-spacing:.1em}.lobby-input:focus{outline:none;border-color:var(--color-gold)}.lobby-rooms{display:flex;flex-direction:column;gap:.35rem}.lobby-room{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);cursor:pointer;font-size:var(--text-caption);transition:border-color var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast)}.lobby-room:hover{border-color:var(--color-gold);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.lobby-room:active{transform:translateY(0)}.room-id{font-family:var(--font-mono);letter-spacing:.1em;flex:1}.room-gold{color:var(--color-gold);font-weight:700}.room-players{color:var(--color-text-faint)}.lobby-refresh{background:none;border:none;color:var(--color-text-faint);font-size:var(--text-body-lg);cursor:pointer;padding:0}.lobby-refresh:hover{color:var(--color-gold)}.lobby-waiting{display:flex;flex-direction:column;align-items:center;gap:var(--space-4);padding:var(--space-8) 0}.room-code-display{display:flex;flex-direction:column;align-items:center;gap:var(--space-1)}.room-code-label{font-size:var(--text-small);color:var(--color-text-faint);text-transform:uppercase;letter-spacing:.1em}.room-code-value{font-size:var(--text-h1);font-weight:700;font-family:var(--font-mono);color:var(--color-gold);letter-spacing:.2em}.lobby-hint{font-size:var(--text-label);color:var(--color-text-disabled)}.lobby-error{color:var(--color-error-strong);font-size:var(--text-caption);text-align:center}.online-status-bar{display:flex;align-items:center;gap:var(--space-4);padding:.4rem var(--space-3);background:var(--color-bg-surface);border-radius:var(--radius-md);font-size:var(--text-label)}.online-room-info{color:var(--color-text-muted)}.online-room-info strong{color:var(--color-gold)}.online-warning{color:var(--color-warning);font-style:italic}.resign-confirm{display:flex;align-items:center;gap:.4rem;color:var(--color-error);font-weight:700}.resign-yes{color:var(--color-error);border-color:var(--color-error)}.rating-positive{color:var(--color-success);font-weight:700}.rating-negative{color:var(--color-error);font-weight:700}.game-over-rating{margin:var(--space-2) 0;font-size:.95rem}.rating-casual{color:var(--color-text-faint);font-style:italic}.game-over-actions{display:flex;gap:var(--space-3);justify-content:center;margin-top:var(--space-2)}.rated-toggle{display:flex;align-items:center;gap:.4rem;font-size:var(--text-caption);color:var(--color-text-muted);cursor:pointer}.room-rated-badge{font-size:var(--text-xs);padding:.1rem .4rem;border-radius:var(--radius-sm);font-weight:700;text-transform:uppercase}.room-rated-badge.rated{color:var(--color-gold);border:1px solid var(--color-gold)}.room-rated-badge.casual{color:var(--color-text-faint);border:1px solid var(--color-border-muted)}.lobby-skip-link{background:none;border:none;color:var(--color-text-disabled);font-size:var(--text-label);cursor:pointer;padding:var(--space-1) 0;margin-top:var(--space-1)}.lobby-skip-link:hover{color:var(--color-text-muted)}.lobby-name-link{background:none;border:none;color:inherit;font:inherit;cursor:pointer;padding:0;text-decoration:underline;text-decoration-color:var(--color-border-muted)}.lobby-name-link:hover{text-decoration-color:var(--color-gold)}.profile-page,.leaderboard-page{max-width:600px;margin:var(--space-8) auto;padding:var(--space-4)}.profile-name{color:var(--color-gold);margin:var(--space-4) 0 var(--space-2)}.profile-stats{display:flex;flex-wrap:wrap;gap:var(--space-4);margin:var(--space-4) 0}.profile-stat{display:flex;flex-direction:column;align-items:center;min-width:60px}.stat-value{font-size:1.4rem;font-weight:700;color:var(--color-text-primary)}.stat-label{font-size:var(--text-xs);color:var(--color-text-faint);text-transform:uppercase}.profile-matches h3{margin:var(--space-6) 0 var(--space-2);color:var(--color-text-muted)}.matches-table{display:flex;flex-direction:column;gap:var(--space-1)}.match-row{display:flex;align-items:center;gap:var(--space-3);padding:.4rem var(--space-2);background:var(--color-bg-surface);border-radius:var(--radius-sm);font-size:var(--text-caption)}.match-result{font-weight:700;width:1.5rem;text-align:center}.match-result.win{color:var(--color-success)}.match-result.loss{color:var(--color-error)}.match-result.draw{color:var(--color-text-faint)}.match-opponent{flex:1;color:var(--color-text-secondary)}.match-mode{color:var(--color-text-faint);font-size:var(--text-small)}.match-rating-change{font-weight:700}.match-rating-change.positive{color:var(--color-success)}.match-rating-change.negative{color:var(--color-error)}.profile-loading,.profile-error,.leaderboard-loading,.leaderboard-empty{color:var(--color-text-faint);padding:var(--space-8) 0;text-align:center}.profile-error{color:var(--color-error)}.leaderboard-table{display:flex;flex-direction:column;gap:.2rem;margin-top:var(--space-4)}.leaderboard-header{display:flex;gap:var(--space-2);padding:.4rem var(--space-2);font-size:var(--text-xs);color:var(--color-text-disabled);text-transform:uppercase}.leaderboard-row{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2);background:var(--color-bg-surface);border:1px solid var(--color-border-subtle);border-radius:var(--radius-sm);cursor:pointer;color:var(--color-text-secondary);font-size:var(--text-body);text-align:left;width:100%;transition:border-color var(--transition-fast),transform var(--transition-fast)}.leaderboard-row:hover{border-color:var(--color-gold);transform:translateY(-1px)}.leaderboard-row.current-player{border-color:var(--color-gold);background:var(--color-gold-bg)}.lb-rank{width:2rem;text-align:center;color:var(--color-text-faint)}.lb-name{flex:1}.lb-rating{width:4rem;text-align:right;font-weight:700;color:var(--color-gold)}.lb-games{width:3.5rem;text-align:right;color:var(--color-text-faint)}.lb-wins{width:3rem;text-align:right;color:var(--color-success)}.back-to-lobby-header{padding:.3rem .6rem;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-muted);font-size:var(--text-small);cursor:pointer;transition:border-color var(--transition-fast),color var(--transition-fast),transform var(--transition-fast);white-space:nowrap}.back-to-lobby-header:hover{border-color:var(--color-gold);color:var(--color-text-primary);transform:scale(1.02)}.back-to-lobby-header:active{transform:scale(.98)}.github-link{position:fixed;bottom:calc(var(--space-4) + env(safe-area-inset-bottom,0px));right:calc(var(--space-4) + env(safe-area-inset-right,0px));color:var(--color-border-muted);transition:color var(--transition-fast);line-height:1}.github-link:hover{color:var(--color-text-primary)}.mode-selector{max-width:600px;margin:0 auto;padding:var(--space-12) var(--space-6);display:flex;flex-direction:column;align-items:center;gap:var(--space-6)}.mode-selector-title{color:var(--color-gold);font-size:var(--text-display);text-align:center}.mode-selector-subtitle{color:var(--color-text-faint);font-size:var(--text-body-lg);text-transform:uppercase;letter-spacing:.1em}.mode-cards{display:flex;flex-direction:column;gap:var(--space-4);width:100%}.mode-card{display:flex;flex-direction:column;align-items:center;gap:var(--space-2);padding:var(--space-6) var(--space-4);background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);color:var(--color-text-primary);cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-normal),transform var(--transition-fast);text-align:center}.mode-card:hover{background:var(--color-bg-card);border-color:var(--color-gold);transform:translateY(-2px);box-shadow:var(--shadow-md)}.mode-card:active{transform:translateY(0)}.mode-card-icon{font-size:2.5rem}.mode-card-name{font-size:var(--text-h3);font-weight:700;color:var(--color-gold)}.mode-card-desc{font-size:var(--text-caption);color:var(--color-text-muted);line-height:1.4}.lobby-mode-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:var(--space-3);width:100%}.lobby-mode-card{display:flex;flex-direction:column;align-items:center;gap:.35rem;padding:var(--space-4) var(--space-3);background:var(--color-bg-surface);border:2px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-text-primary);cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-normal),transform var(--transition-fast),box-shadow var(--transition-fast);text-align:center}.lobby-mode-card:hover{background:var(--color-bg-card);border-color:var(--color-text-faint);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.lobby-mode-card:active{transform:translateY(0)}.lobby-mode-card.selected{border-color:var(--color-gold);background:var(--color-gold-bg);box-shadow:0 0 12px #d4a84340}.lobby-mode-icon{font-size:var(--text-h2)}.lobby-mode-name{font-size:var(--text-caption);font-weight:700;color:var(--color-gold)}.lobby-mode-desc{font-size:var(--text-xs);color:var(--color-text-muted);line-height:1.4}.room-mode{font-size:var(--text-small);color:var(--color-gold)}.game-content.no-economy{justify-content:center}@media(min-width:901px){.game-content.no-economy .board-wrapper{width:min(calc(100vh - 8rem),calc(100vw - 14rem))}}.lobby-back-to-menu{align-self:center;font-size:var(--text-label);padding:.3rem .8rem}.lobby-bot-cards{display:flex;gap:var(--space-2);width:100%}.lobby-bot-card{flex:1;display:flex;flex-direction:column;align-items:center;gap:var(--space-1);padding:var(--space-3) var(--space-2);background:var(--color-bg-surface);border:2px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-text-primary);cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-normal),transform var(--transition-fast);text-align:center}.lobby-bot-card:hover{background:var(--color-bg-card);border-color:var(--color-gold);transform:translateY(-2px);box-shadow:var(--shadow-md)}.lobby-bot-card:active{transform:translateY(0)}.bot-avatar{font-size:var(--text-h1);line-height:1}.lobby-bot-name{font-size:var(--text-caption);font-weight:700;color:var(--color-gold)}.lobby-bot-desc{font-size:var(--text-xxs);color:var(--color-text-muted);line-height:1.3}.inventory-panel{background:var(--color-bg-surface);border-radius:var(--radius-md);padding:var(--space-3)}.inventory-panel h3{font-size:var(--text-caption);color:var(--color-text-faint);margin-bottom:var(--space-2);text-transform:uppercase;letter-spacing:.05em}.inventory-section{margin-bottom:.35rem}.inventory-pieces,.inventory-items{display:flex;flex-direction:column;gap:.35rem}.inventory-piece,.inventory-item{display:flex;align-items:center;gap:var(--space-2);width:100%;padding:.4rem .6rem;background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-primary);cursor:pointer;font-size:var(--text-caption);transition:background var(--transition-fast),transform var(--transition-fast),border-color var(--transition-fast)}.inventory-piece:hover:not(:disabled),.inventory-item:hover:not(:disabled){background:var(--color-bg-elevated-hover);border-color:var(--color-gold);transform:scale(1.02)}.inventory-piece:active:not(:disabled),.inventory-item:active:not(:disabled){transform:scale(.98)}.inventory-piece.selected,.inventory-item.selected{background:var(--color-selected-bg);border-color:var(--color-selected-border)}.inventory-piece:disabled,.inventory-item:disabled{opacity:.4;cursor:not-allowed}.inventory-count{font-size:var(--text-small);color:var(--color-text-muted)}.inventory-free{margin-left:auto;font-size:var(--text-xs);color:var(--color-selected-border);font-weight:700}.item-icon{font-size:var(--text-body-xl)}.item-label{flex:1}.item-cost{color:var(--color-gold);font-weight:700;font-size:var(--text-label)}.loot-reward-toast{position:fixed;top:calc(var(--space-6) + env(safe-area-inset-top,0px));left:50%;transform:translate(-50%);display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4) var(--space-3) var(--space-6);background:var(--color-bg-card);border:2px solid var(--color-gold);border-radius:var(--radius-xl);z-index:200;animation:toast-slide-in var(--transition-slow);box-shadow:var(--shadow-lg)}.loot-reward-dismiss{background:none;border:none;color:var(--color-text-faint);font-size:1.4rem;cursor:pointer;padding:0 .3rem;line-height:1;margin-left:var(--space-1)}.loot-reward-dismiss:hover{color:#fff}@keyframes toast-slide-in{0%{transform:translate(-50%) translateY(-100%);opacity:0}to{transform:translate(-50%) translateY(0);opacity:1}}@keyframes toast-slide-out{0%{transform:translate(-50%) translateY(0);opacity:1}to{transform:translate(-50%) translateY(-100%);opacity:0}}.loot-reward-toast.dismissing{animation:toast-slide-out var(--transition-normal) forwards}.loot-reward-icon{font-size:1.8rem}.loot-reward-text{display:flex;flex-direction:column;gap:.15rem}.loot-reward-title{font-size:var(--text-label);color:var(--color-text-faint);text-transform:uppercase;letter-spacing:.05em}.loot-reward-content{font-size:var(--text-body-xl);font-weight:700;color:var(--color-gold)}.loot-reward-desc{font-size:var(--text-label);color:var(--color-text-muted);margin-top:.2rem;font-style:italic}.loot-counter{padding:var(--space-2) var(--space-3);background:var(--color-bg-surface);border-radius:var(--radius-md);font-size:var(--text-label)}.loot-counter-label{color:var(--color-text-faint);text-transform:uppercase;letter-spacing:.05em;font-size:var(--text-xs)}.loot-counter-scores{display:flex;align-items:center;gap:.4rem}.loot-counter-white{color:var(--color-text-primary);font-weight:700}.loot-counter-black{color:var(--color-text-muted);font-weight:700}.loot-counter-sep{color:var(--color-border-muted)}.loot-counter-row{display:flex;justify-content:space-between;align-items:center}.loot-hit-controls{margin-top:.4rem}.hit-button{width:100%;padding:.4rem .6rem;background:var(--color-gold-muted);border:1px solid var(--color-gold);border-radius:var(--radius-sm);color:var(--color-gold);font-size:var(--text-label);font-weight:600;cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast)}.hit-button:hover:not(:disabled){background:#4a4528;transform:scale(1.02)}.hit-button:active:not(:disabled){transform:scale(.98)}.hit-button:disabled{opacity:.4;cursor:not-allowed}.hit-button.cancel{background:#3a2020;border-color:#c44;color:#c44}.hit-button.cancel:hover{background:#4a2828}.bot-thinking{animation:bot-think-pulse 1.2s ease-in-out infinite}@keyframes bot-think-pulse{0%,to{opacity:1}50%{opacity:.5}}.welcome-banner{background:var(--color-gold-bg);border:1px solid var(--color-gold);border-radius:var(--radius-lg);padding:var(--space-4);display:flex;align-items:flex-start;gap:var(--space-3);animation:dialog-enter var(--transition-normal)}.welcome-text{flex:1;font-size:var(--text-caption);line-height:1.5;color:var(--color-text-secondary)}.welcome-text strong{color:var(--color-gold)}.welcome-dismiss{padding:var(--space-1) var(--space-3);background:var(--color-gold);color:var(--color-bg-body);border:none;border-radius:var(--radius-sm);font-size:var(--text-caption);font-weight:700;cursor:pointer;white-space:nowrap;transition:background var(--transition-fast),transform var(--transition-fast)}.welcome-dismiss:hover{background:var(--color-gold-hover);transform:scale(1.03)}.welcome-dismiss:active{transform:scale(.97)}@keyframes hint-slide-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.game-hint{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);background:var(--color-gold-bg);border:1px solid var(--color-gold);border-radius:var(--radius-md);animation:hint-slide-in var(--transition-slow)}.game-hint-text{flex:1;font-size:var(--text-caption);color:var(--color-text-secondary);line-height:1.4}.game-hint-dismiss{background:none;border:none;color:var(--color-text-faint);font-size:var(--text-h3);cursor:pointer;padding:0 var(--space-1);line-height:1}.game-hint-dismiss:hover{color:var(--color-text-primary)}@media(max-width:600px){.mode-selector{padding:var(--space-8) var(--space-4)}.mode-selector-title{font-size:var(--text-h1)}.mode-card{padding:1.2rem .75rem}.mode-card-icon{font-size:2rem}}@media(max-width:480px){#root{padding:var(--space-2)}.game-layout,.game-content,.side-panel{gap:.6rem}.game-header{flex-wrap:wrap;gap:.4rem}.game-header h1{font-size:var(--text-body-lg);width:100%}.header-actions{width:100%;justify-content:flex-start;gap:var(--space-2);flex-wrap:wrap}.turn-indicator{flex-direction:row;gap:.4rem;margin-left:auto}.undo-button,.new-game-header-button{min-height:44px;padding:var(--space-2) var(--space-4)}.rules-button,.flip-button{width:44px;height:44px;font-size:1.2rem}.mute-button{min-width:44px;min-height:44px;font-size:1.3rem}.starting-gold-select{min-height:44px}.shop-piece,.inventory-piece,.inventory-item,.hit-button{min-height:44px;padding:.6rem var(--space-3)}.back-to-lobby{min-height:44px;padding:.6rem var(--space-4)}.board-wrapper{width:min(480px,calc(100vw - 1rem))}.shop-pieces,.inventory-pieces,.inventory-items{display:grid;grid-template-columns:1fr 1fr;gap:.35rem}.action-history{max-height:100px}.rules-dialog{max-width:calc(100vw - 2rem);padding:1rem;max-height:85vh}.game-over-dialog{padding:1.5rem;max-width:calc(100vw - 2rem)}.loot-reward-toast{max-width:calc(100vw - 1rem);padding:.6rem .75rem .6rem 1rem}.loot-reward-icon{font-size:1.4rem}.lobby-mode-cards,.lobby-bot-cards{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}.lobby{padding:var(--space-6) var(--space-3)}.lobby h1{font-size:var(--text-h2)}.online-status-bar{flex-wrap:wrap;gap:var(--space-2);font-size:var(--text-small)}}@media(max-width:360px){#root{padding:var(--space-1)}.board-wrapper{width:calc(100vw - .5rem)}.game-header h1{font-size:var(--text-body)}.shop-pieces,.lobby-mode-cards,.lobby-bot-cards{grid-template-columns:1fr}}