:root{--md-sys-color-primary: #bb86fc;--md-sys-color-on-primary: #000000;--md-sys-color-primary-container: #3700b3;--md-sys-color-on-primary-container: #ffffff;--md-sys-color-surface: #121212;--md-sys-color-surface-variant: #1e1e1e;--md-sys-color-surface-container: #2d2d2d;--md-sys-color-surface-container-high: #383838;--md-sys-color-on-surface: #ffffff;--md-sys-color-on-surface-variant: #e1e1e1;--game-bg-primary: #0d1117;--game-bg-secondary: #161b22;--game-bg-tertiary: #21262d;--game-board-bg: #0f1419;--red-beast-primary: #ff4757;--red-beast-secondary: #ff3838;--red-beast-tertiary: #ff6b7a;--blue-beast-primary: #5352ed;--blue-beast-secondary: #3742fa;--blue-beast-tertiary: #7bed9f;--red-primary: #ff4757;--blue-primary: #5352ed;--gold-accent: #ffd700;--accent-gold: #ffd700;--accent-silver: #c0c0c0;--accent-bronze: #cd7f32;--success-color: #2ed573;--warning-color: #ffa502;--error-color: #ff4757;--info-color: #70a1ff;--neutral-100: #f8f9fa;--neutral-200: #e9ecef;--neutral-300: #dee2e6;--neutral-400: #ced4da;--neutral-500: #adb5bd;--neutral-600: #6c757d;--neutral-700: #495057;--neutral-800: #343a40;--neutral-900: #212529;--text-primary: #ffffff;--text-secondary: #d0d7de;--text-tertiary: #8b949e;--text-disabled: #6e7681;--border-primary: #30363d;--border-secondary: #21262d;--border-focus: var(--accent-gold);--elevation-1: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.24);--elevation-2: 0 3px 6px rgba(0,0,0,.16), 0 3px 6px rgba(0,0,0,.23);--elevation-3: 0 10px 20px rgba(0,0,0,.19), 0 6px 6px rgba(0,0,0,.23);--elevation-4: 0 14px 28px rgba(0,0,0,.25), 0 10px 10px rgba(0,0,0,.22);--elevation-5: 0 19px 38px rgba(0,0,0,.3), 0 15px 12px rgba(0,0,0,.22);--ease-in-out-cubic: cubic-bezier(.4, 0, .2, 1);--ease-out-cubic: cubic-bezier(0, 0, .2, 1);--ease-in-cubic: cubic-bezier(.4, 0, 1, 1);--ease-emphasized: cubic-bezier(.2, 0, 0, 1);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--space-3xl: 64px;--radius-xs: 4px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--font-family-primary: "SF Pro Display", "Segoe UI", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;--font-family-mono: "SF Mono", "Monaco", "Cascadia Code", "Roboto Mono", monospace;--font-size-display-large: 3.5rem;--font-size-display-medium: 2.875rem;--font-size-display-small: 2.25rem;--font-size-headline-large: 2rem;--font-size-headline-medium: 1.75rem;--font-size-headline-small: 1.5rem;--font-size-title-large: 1.375rem;--font-size-title-medium: 1rem;--font-size-title-small: .875rem;--font-size-body-large: 1rem;--font-size-body-medium: .875rem;--font-size-body-small: .75rem;--font-size-label-large: .875rem;--font-size-label-medium: .75rem;--font-size-label-small: .6875rem}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family-primary);background:linear-gradient(135deg,var(--game-bg-primary) 0%,var(--game-bg-secondary) 50%,var(--game-bg-tertiary) 100%);background-attachment:fixed;color:var(--text-primary);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}.game-container{--container-padding: clamp(var(--space-sm), 2.2vw, var(--space-lg));display:grid;grid-template-columns:clamp(240px,18vw,320px) minmax(0,1fr) clamp(240px,18vw,320px);grid-template-areas:"sidebar-left main sidebar-right";gap:clamp(var(--space-xs),1vw,var(--space-sm));max-width:1980px;margin:0 auto;padding:var(--container-padding);min-height:100vh;position:relative}.game-container:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 20%,rgba(255,71,87,.1) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(83,82,237,.1) 0%,transparent 50%),radial-gradient(circle at 40% 60%,rgba(255,215,0,.05) 0%,transparent 50%);pointer-events:none;z-index:-1}.game-sidebar-left{grid-area:sidebar-left;background:var(--game-bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:clamp(var(--space-md),2.2vw,var(--space-xl));box-shadow:var(--elevation-2);height:calc(100vh - 2 * var(--container-padding));position:sticky;top:var(--container-padding);max-height:calc(100vh - 2 * var(--container-padding));overflow-y:auto;scrollbar-gutter:stable;display:flex;flex-direction:column;gap:clamp(var(--space-md),1.8vw,var(--space-lg));-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s var(--ease-in-out-cubic)}.game-sidebar-left:hover{box-shadow:var(--elevation-3);transform:translateY(-2px)}.game-sidebar-right{grid-area:sidebar-right;background:var(--game-bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:clamp(var(--space-md),2.2vw,var(--space-xl));box-shadow:var(--elevation-2);height:calc(100vh - 2 * var(--container-padding));position:sticky;top:var(--container-padding);max-height:calc(100vh - 2 * var(--container-padding));overflow-y:auto;scrollbar-gutter:stable;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s var(--ease-in-out-cubic);display:flex;flex-direction:column;gap:clamp(var(--space-md),1.8vw,var(--space-lg))}.game-sidebar-right:hover{box-shadow:var(--elevation-3);transform:translateY(-2px)}.sidebar-flex-spacer{flex:1 1 auto}.game-header{text-align:center;margin-bottom:clamp(var(--space-md),2vw,var(--space-lg));padding-bottom:var(--space-lg);border-bottom:2px solid var(--border-primary);position:relative}.game-header:after{content:"";position:absolute;bottom:-2px;left:50%;transform:translate(-50%);width:60px;height:2px;background:linear-gradient(90deg,var(--accent-gold),var(--warning-color));border-radius:var(--radius-full)}.game-title{font-size:var(--font-size-display-medium);font-weight:700;background:linear-gradient(45deg,var(--accent-gold),var(--warning-color),var(--red-beast-primary));background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-sm);animation:gradient-shift 3s ease-in-out infinite;letter-spacing:-.02em}@keyframes gradient-shift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.game-subtitle{font-size:var(--font-size-body-large);color:var(--text-secondary);font-weight:400;letter-spacing:.15em;text-transform:uppercase;opacity:.8;font-family:var(--font-family-mono)}.game-info{background:var(--game-bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);padding:clamp(var(--space-md),2vw,var(--space-lg));margin:0;box-shadow:var(--elevation-1);position:relative;height:auto}.game-info:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent-gold),var(--blue-beast-primary))}.phase-indicator{text-align:center;padding:var(--space-md) var(--space-lg);border-radius:var(--radius-full);font-weight:600;text-transform:uppercase;letter-spacing:.1em;margin-bottom:var(--space-md);font-size:var(--font-size-label-large);position:relative;overflow:hidden;transition:all .3s var(--ease-in-out-cubic)}.phase-indicator:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);animation:shimmer 2s infinite}@keyframes shimmer{0%{left:-100%}to{left:100%}}.phase-setup{background:linear-gradient(135deg,var(--warning-color),#d68910);color:#fff;border:2px solid var(--warning-color)}.phase-color-selection{background:linear-gradient(135deg,var(--accent-gold),#f4d03f);color:var(--game-bg-primary);border:2px solid var(--accent-gold)}.phase-playing{background:linear-gradient(135deg,var(--success-color),#28b463);color:#fff;border:2px solid var(--success-color)}.phase-game-over{background:linear-gradient(135deg,var(--error-color),#ec7063);color:#fff;border:2px solid var(--error-color)}.current-player{display:flex;justify-content:center;align-items:center;gap:12px;font-size:1.1rem;font-weight:600}.turn-visual{position:relative;width:64px;height:64px;flex-shrink:0;display:grid;place-items:center;filter:drop-shadow(0 0 12px rgba(255,215,0,.25))}.turn-core{width:18px;height:18px;border-radius:50%;box-shadow:0 0 12px #ffffff59}.turn-core.red{background:linear-gradient(135deg,#ff7b7b,var(--red-primary))}.turn-core.blue{background:linear-gradient(135deg,#7eb6ff,var(--blue-primary))}.star-orbit{position:absolute;top:6px;right:6px;bottom:6px;left:6px;border-radius:50%;border:1px dashed rgba(255,255,255,.18);animation:orbit-spin 8s linear infinite}.star-particle{position:absolute;width:6px;height:6px;border-radius:50%;background:radial-gradient(circle,#fff,#fff6 70%);top:50%;left:50%;transform-origin:-24px -24px;animation:particle-float 2.4s ease-in-out infinite;animation-delay:calc(var(--i) * .08s)}.turn-visual.is-your-turn .star-particle{background:radial-gradient(circle,#ffe8a3,#ffd70073 70%)}.turn-visual.is-opponent-turn .star-particle{background:radial-gradient(circle,#c7ddff,#7eb6ff73 70%)}.turn-visual.is-opponent-turn{filter:drop-shadow(0 0 12px rgba(126,182,255,.25))}.player-indicator{width:16px;height:16px;border-radius:50%;animation:pulse 2s infinite}.player-indicator.red{background:var(--red-primary)}.player-indicator.blue{background:var(--blue-primary)}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.1)}}.turn-text{font-size:clamp(1.2rem,2.2vw,1.5rem);font-weight:800;letter-spacing:.02em;text-shadow:0 0 14px rgba(255,215,0,.3)}.turn-text.is-your-turn{color:var(--accent-gold);animation:turn-glow 1.1s ease-in-out infinite alternate}.turn-text.is-opponent-turn{color:var(--text-secondary);animation:turn-breathe 1.4s ease-in-out infinite}.wave-char{display:inline-block;animation:wave-bounce 1.25s ease-in-out infinite;animation-delay:calc(var(--char-index) * .06s)}@keyframes turn-glow{0%{transform:scale(1);text-shadow:0 0 10px rgba(255,215,0,.3)}50%{transform:scale(1.05);text-shadow:0 0 18px rgba(255,215,0,.55)}to{transform:scale(1);text-shadow:0 0 12px rgba(255,215,0,.4)}}@keyframes turn-breathe{0%{opacity:.85}50%{opacity:1;transform:translateY(-2px)}to{opacity:.85}}@keyframes wave-bounce{0%{transform:translateY(0)}40%{transform:translateY(-6px)}70%{transform:translateY(2px)}to{transform:translateY(0)}}@keyframes orbit-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes particle-float{0%{transform:rotate(calc(36deg * var(--i))) translate(24px) scale(.9);opacity:.7}50%{transform:rotate(calc(36deg * var(--i))) translate(28px) scale(1.1);opacity:1}to{transform:rotate(calc(36deg * var(--i))) translate(24px) scale(.9);opacity:.7}}.game-stats{display:flex;flex-direction:column;gap:8px}.stat-item{display:flex;justify-content:space-between;align-items:center;padding:8px 0}.stat-label{color:var(--text-secondary);font-size:.9rem}.stat-value{font-weight:600;font-size:1rem;color:var(--gold-accent)}.game-controls{display:flex;flex-direction:column;gap:var(--space-md);margin:0}.online-controls{display:flex;flex-direction:column;gap:var(--space-sm);padding:var(--space-md);border:1px dashed var(--border-primary);border-radius:var(--radius-md);background-color:#ffffff05}.online-controls h2{font-size:var(--font-size-title-medium);margin-bottom:var(--space-xs)}.online-tip{font-size:var(--font-size-body-small);color:var(--text-secondary)}.online-form{display:flex;gap:var(--space-sm);align-items:center}.online-form input{flex:1;padding:var(--space-sm);border-radius:var(--radius-sm);border:1px solid var(--border-primary);background:var(--game-bg-tertiary);color:var(--text-primary)}.online-room-list{max-height:180px;overflow-y:auto;border:1px solid var(--border-primary);border-radius:var(--radius-sm);padding:var(--space-sm);margin-top:var(--space-sm);background:#ffffff05}.online-room-list ul{list-style:none;display:flex;flex-direction:column;gap:var(--space-xs)}.online-room-list li{display:flex;justify-content:space-between;align-items:center;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);background:#ffffff08;border:1px solid transparent}.online-room-list li:hover{border-color:var(--accent-gold)}.online-room-info{font-size:var(--font-size-body-small);color:var(--text-secondary);background:#ffffff08;border-radius:var(--radius-sm);padding:var(--space-sm);margin-bottom:var(--space-sm)}.online-room-actions{display:flex;flex-direction:column;gap:var(--space-xs)}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;padding:var(--space-md) var(--space-lg);border:none;border-radius:var(--radius-sm);font-size:var(--font-size-label-large);font-weight:500;font-family:var(--font-family-primary);cursor:pointer;text-decoration:none;text-transform:none;letter-spacing:.02em;transition:all .3s var(--ease-in-out-cubic);overflow:hidden;z-index:1}.btn:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:currentColor;opacity:0;transition:opacity .3s var(--ease-in-out-cubic);z-index:-1}.btn:hover:before{opacity:.08}.btn:active:before{opacity:.12}.btn-primary{background:var(--success-color);color:#fff;box-shadow:var(--elevation-1)}.btn-primary:hover{box-shadow:var(--elevation-2);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0);box-shadow:var(--elevation-1)}.btn-secondary{background:var(--game-bg-tertiary);color:var(--text-primary);border:1px solid var(--border-primary);box-shadow:var(--elevation-1)}.btn-secondary:hover{background:var(--neutral-600);box-shadow:var(--elevation-2);transform:translateY(-1px)}.btn:disabled{opacity:.38;cursor:not-allowed;transform:none!important;box-shadow:none!important}.btn:disabled:before{display:none}.turn-info{background:var(--game-bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);padding:var(--space-md);box-shadow:var(--elevation-1);position:relative;overflow:hidden}.turn-info:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent-gold),var(--blue-beast-primary))}.game-stats-section{background:var(--game-bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);padding:clamp(var(--space-md),2vw,var(--space-lg));box-shadow:var(--elevation-1);position:relative;overflow:hidden}.game-stats-section:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--success-color),var(--info-color))}.game-stats-section h2{font-size:var(--font-size-title-medium);font-weight:600;color:var(--accent-gold);margin-bottom:var(--space-md);text-align:center;letter-spacing:.05em}.rules-section{background:var(--game-bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);padding:clamp(var(--space-md),2vw,var(--space-lg));box-shadow:var(--elevation-1);position:relative;overflow:hidden;max-height:clamp(240px,36vh,420px);overflow-y:auto;scrollbar-gutter:stable}.rules-section:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--red-beast-primary),var(--warning-color))}.rules-section h2{font-size:var(--font-size-title-medium);font-weight:600;color:var(--accent-gold);margin:0;letter-spacing:.05em}.rules-section .game-rules{background:transparent;border:none;border-radius:0;padding:0;box-shadow:none;margin-top:var(--space-sm)}.rules-section .game-rules summary{cursor:pointer;list-style:none;outline:none;transition:all .3s var(--ease-in-out-cubic);display:flex;align-items:center;justify-content:space-between}.rules-section .game-rules summary::-webkit-details-marker{display:none}.rules-section .game-rules summary:after{content:"▼";font-size:.8rem;color:var(--text-tertiary);transition:transform .3s var(--ease-in-out-cubic);margin-left:var(--space-sm)}.rules-section .game-rules[open] summary:after{transform:rotate(180deg)}.rules-section .game-rules summary:hover{color:var(--text-primary)}.rules-section .game-rules summary:hover:after{color:var(--accent-gold)}.game-rules ul{list-style:none;margin:0;padding:0}.game-rules li{font-size:.9rem;color:var(--text-secondary);position:relative;padding:6px 0 6px 20px;line-height:1.4}.game-rules li:before{content:"•";color:var(--gold-accent);font-size:1.2rem;position:absolute;left:0;top:6px}.game-main{grid-area:main;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(var(--space-xs),1vw,var(--space-md));padding:0;height:calc(100vh - 2 * var(--container-padding));width:100%;max-width:100%;position:relative;overflow:hidden;margin:0 auto}.game-board{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:clamp(8px,1vw,12px);background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.02),transparent 40%),radial-gradient(circle at 70% 70%,rgba(255,255,255,.02),transparent 40%),var(--game-board-bg);border:2px solid rgba(255,255,255,.08);border-radius:24px;padding:clamp(12px,1.6vw,18px);box-shadow:0 14px 38px #00000059,inset 0 1px #ffffff0a;width:auto;height:auto;max-width:100%;max-height:85vh;aspect-ratio:1 / 1;margin:auto;position:relative;overflow:hidden;transition:all .4s var(--ease-emphasized)}.game-board.turn-red{border:3px solid var(--red-beast-primary);box-shadow:0 0 30px #ff475766,0 0 60px #ff475733,inset 0 0 20px #ff47571a;background:radial-gradient(circle at center,rgba(255,71,87,.05) 0%,var(--game-board-bg) 80%);animation:board-pulse-red 2s infinite alternate}.game-board.turn-blue{border:3px solid var(--blue-beast-primary);box-shadow:0 0 30px #5352ed66,0 0 60px #5352ed33,inset 0 0 20px #5352ed1a;background:radial-gradient(circle at center,rgba(83,82,237,.05) 0%,var(--game-board-bg) 80%);animation:board-pulse-blue 2s infinite alternate}@keyframes board-pulse-red{0%{box-shadow:0 0 20px #ff47574d,0 0 40px #ff47571a}to{box-shadow:0 0 40px #ff475799,0 0 80px #ff47574d}}@keyframes board-pulse-blue{0%{box-shadow:0 0 20px #5352ed4d,0 0 40px #5352ed1a}to{box-shadow:0 0 40px #5352ed99,0 0 80px #5352ed4d}}.game-board.turn-red:before{content:"";position:absolute;top:-6px;left:-6px;right:-6px;bottom:-6px;background:linear-gradient(45deg,transparent,rgba(255,71,87,.1),transparent,rgba(255,71,87,.1),transparent);border-radius:var(--radius-lg);z-index:-1;animation:turn-pulse-red 2s ease-in-out infinite}.game-board.turn-blue:before{content:"";position:absolute;top:-6px;left:-6px;right:-6px;bottom:-6px;background:linear-gradient(45deg,transparent,rgba(83,82,237,.1),transparent,rgba(83,82,237,.1),transparent);border-radius:var(--radius-lg);z-index:-1;animation:turn-pulse-blue 2s ease-in-out infinite}.turn-indicator{display:flex;justify-content:center;align-items:center;margin-bottom:var(--space-md);padding:0;min-height:50px;position:relative;width:100%}.turn-title{font-family:var(--font-family-primary);font-size:1.1rem;font-weight:600;letter-spacing:.25px;line-height:1.2;margin:0;padding:10px 20px;border-radius:var(--radius-full);text-align:center;width:100%;max-width:100%;background:linear-gradient(135deg,var(--game-bg-tertiary),var(--game-bg-secondary));color:var(--text-secondary);border:2px solid var(--border-primary);transition:all .4s var(--ease-emphasized);text-shadow:0 1px 2px rgba(0,0,0,.5);box-shadow:var(--elevation-2);user-select:none;-webkit-user-select:none}.turn-indicator.red-turn .turn-title{background:linear-gradient(135deg,var(--red-beast-primary),var(--red-beast-secondary));color:#fff;border-color:#ffffff4d;box-shadow:var(--elevation-4),0 0 20px #ff475766,0 0 40px #ff475733;animation:turn-title-glow-red .6s var(--ease-emphasized)}.turn-indicator.blue-turn .turn-title{background:linear-gradient(135deg,var(--blue-beast-primary),var(--blue-beast-secondary));color:#fff;border-color:#ffffff4d;box-shadow:var(--elevation-4),0 0 20px #5352ed66,0 0 40px #5352ed33;animation:turn-title-glow-blue .6s var(--ease-emphasized)}@keyframes turn-title-glow-red{0%{opacity:.7;transform:scale(.95);box-shadow:var(--elevation-2),0 0 #ff475700}60%{opacity:1;transform:scale(1.05);box-shadow:var(--elevation-4),0 0 30px #ff475799,0 0 60px #ff47574d}to{opacity:1;transform:scale(1);box-shadow:var(--elevation-4),0 0 20px #ff475766,0 0 40px #ff475733}}@keyframes turn-title-glow-blue{0%{opacity:.7;transform:scale(.95);box-shadow:var(--elevation-2),0 0 #5352ed00}60%{opacity:1;transform:scale(1.05);box-shadow:var(--elevation-4),0 0 30px #5352ed99,0 0 60px #5352ed4d}to{opacity:1;transform:scale(1);box-shadow:var(--elevation-4),0 0 20px #5352ed66,0 0 40px #5352ed33}}@keyframes turn-pulse-red{0%,to{opacity:.3;transform:scale(1)}50%{opacity:.6;transform:scale(1.02)}}@keyframes turn-pulse-blue{0%,to{opacity:.3;transform:scale(1)}50%{opacity:.6;transform:scale(1.02)}}.game-board:not(.turn-red):not(.turn-blue):before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:repeating-linear-gradient(45deg,transparent,transparent 2px,rgba(255,215,0,.03) 2px,rgba(255,215,0,.03) 4px);pointer-events:none;z-index:0}.game-board:not(.turn-red):not(.turn-blue):after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:80%;height:80%;border:1px solid rgba(255,215,0,.1);border-radius:var(--radius-md);pointer-events:none;z-index:0}.board-cell{background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.06),transparent 55%),linear-gradient(145deg,#0e1018f2,#141822e6);border:1px solid rgba(255,255,255,.04);border-radius:18px;position:relative;cursor:pointer;transition:all .4s var(--ease-in-out-cubic);display:flex;align-items:center;justify-content:center;aspect-ratio:1 / 1;z-index:1;overflow:hidden}.board-cell:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,transparent 30%,rgba(255,255,255,.02) 50%,transparent 70%);transform:translate(-100%);transition:transform .6s ease}.board-cell:hover{transform:scale(1.02);box-shadow:0 10px 26px #00000059;border-color:#ffffff1f;z-index:10}.board-cell:hover:before{transform:translate(100%)}.board-cell.valid-move{background:linear-gradient(135deg,#2ed57333,#00cec933);border-color:var(--success-color);animation:valid-glow 2s ease-in-out infinite;box-shadow:0 0 20px #2ed57366}@keyframes valid-glow{0%,to{box-shadow:0 0 20px #2ed57366;border-color:var(--success-color)}50%{box-shadow:0 0 30px #2ed573b3;border-color:#2ed573}}.board-cell.selected{border-color:#ffd700cc;box-shadow:0 0 24px #ffd70066,0 10px 26px #0006;transform:scale(1.04);z-index:15}.piece{--piece-size: 88%;width:var(--piece-size);height:var(--piece-size);aspect-ratio:1 / 1;border-radius:18px;display:flex;align-items:center;justify-content:center;position:relative;transition:all .4s var(--ease-emphasized);font-size:clamp(2.6rem,4vw,4.2rem);font-weight:600;line-height:1;cursor:pointer;z-index:2;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:3px solid transparent;box-sizing:border-box;margin:auto;flex-shrink:0;flex-grow:0;box-shadow:0 10px 26px #00000040,0 3px 8px #0003,inset 0 1px #ffffff1f;transform-style:preserve-3d}.piece:before{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;z-index:2;backface-visibility:hidden;filter:drop-shadow(0 2px 4px rgba(0,0,0,.3))}.piece:after{content:"🎭";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.08),transparent 60%),repeating-linear-gradient(45deg,rgba(123,97,255,.08),rgba(123,97,255,.08) 6px,transparent 6px,transparent 12px),linear-gradient(135deg,#121621,#1b2030 45%,#0f131e);box-shadow:inset 0 1px #ffffff1a,inset 0 -2px 12px #00000059;transform:rotateY(180deg) translateZ(.01px);backface-visibility:hidden;z-index:1;display:grid;place-items:center;color:#bb86fcbf;font-size:clamp(.9rem,2.8vw,1.4rem);text-shadow:0 0 10px rgba(123,97,255,.45),0 0 18px rgba(123,97,255,.25)}.piece.red{background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.22),transparent 38%),linear-gradient(145deg,#ff6b6b,#ff3b30);border:3px solid rgba(255,99,99,.9);color:#fff;box-shadow:0 14px 26px #ff475759,0 6px 12px #ff475747,inset 0 1px #ffffff47,inset 0 -1px #00000029}.piece.blue{background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.22),transparent 38%),linear-gradient(145deg,#5a7dff,#3458ff);border:3px solid rgba(90,125,255,.9);color:#fff;box-shadow:0 14px 26px #5352ed59,0 6px 12px #5352ed47,inset 0 1px #ffffff47,inset 0 -1px #00000029}.piece.hidden{background:linear-gradient(135deg,#1a1f26,#242831,#2d3748,#242831,#1a1f26);border:3px solid var(--border-primary);color:var(--text-tertiary);position:relative;overflow:hidden;cursor:pointer;box-shadow:0 4px 16px #0000004d,0 2px 8px #0003,inset 0 1px #ffffff1a,inset 0 -1px #0003}.piece.hidden:before{content:"🎭";position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;font-size:.88em;color:#bb86fce6;text-shadow:0 0 8px rgba(187,134,252,.6),0 0 16px rgba(187,134,252,.3),0 2px 4px rgba(0,0,0,.3);background:radial-gradient(ellipse 60% 30% at 30% 40%,rgba(187,134,252,.35) 0%,transparent 50%),radial-gradient(ellipse 60% 30% at 70% 40%,rgba(187,134,252,.35) 0%,transparent 50%),radial-gradient(ellipse 80% 20% at 50% 70%,rgba(187,134,252,.25) 0%,transparent 60%);border-radius:var(--radius-sm);animation:mystery-rotation 8s linear infinite,mystery-glow 3s ease-in-out infinite;z-index:3;backface-visibility:hidden;filter:drop-shadow(0 2px 4px rgba(0,0,0,.3));line-height:1}@media (min-width: 768px){.piece.hidden:before{font-size:1.2em}}@media (min-width: 1024px){.piece.hidden:before{font-size:1.4em}}@media (min-width: 1440px){.piece.hidden:before{font-size:1.8em}}.piece.hidden:hover:after{color:#bb86fc;text-shadow:0 0 12px rgba(187,134,252,.8),0 0 24px rgba(187,134,252,.4),0 2px 4px rgba(0,0,0,.4);animation:mystery-glow-intense 1.5s ease-in-out infinite;transform:scale(1.08)}@keyframes mask-sweep{0%{background-position:0 0,-160% 50%,0 0}50%{background-position:0 0,40% 50%,0 0}to{background-position:0 0,160% 50%,0 0}}@keyframes neon-breathe{0%,to{box-shadow:0 8px 28px #00000073,0 0 18px #7b61ff52,inset 0 1px #ffffff2e,inset 0 -2px 10px #7b61ff33}50%{box-shadow:0 10px 32px #00000080,0 0 28px #7b61ff94,inset 0 1px #fff3,inset 0 -2px 14px #7b61ff52}}@keyframes mystery-rotation{0%{transform:translate(-50%,-50%) rotate(0)}to{transform:translate(-50%,-50%) rotate(360deg)}}@keyframes mystery-glow{0%,to{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.1)}}@keyframes mystery-glow-intense{0%,to{opacity:.8;transform:scale(1) rotate(0)}25%{opacity:1;transform:scale(1.15) rotate(6deg)}50%{opacity:.9;transform:scale(1.08) rotate(-6deg)}75%{opacity:1;transform:scale(1.05) rotate(3deg)}}.piece:hover{transform:scale(1.06) translateY(-2px);z-index:20}.piece.red:hover{box-shadow:0 16px 32px #ff475773,0 6px 14px #ff475752,inset 0 1px #ffffff52,inset 0 -1px #0000001f;border-color:#ff7b7b}.piece.blue:hover{box-shadow:0 16px 32px #5352ed73,0 6px 14px #5352ed52,inset 0 1px #ffffff52,inset 0 -1px #0000001f;border-color:#6f8bff}.piece.dragging{transform:scale(1.15) translateY(-8px) rotate(5deg);z-index:100;opacity:.9;filter:brightness(1.2);box-shadow:0 12px 32px #0006,0 6px 16px #0003}.piece-elephant:before{content:"🐘";font-size:4.5rem}.piece-lion:before{content:"🦁";font-size:4.5rem}.piece-tiger:before{content:"🐅";font-size:4.5rem}.piece-leopard:before{content:"🐆";font-size:4.5rem}.piece-wolf:before{content:"🐺";font-size:4.5rem}.piece-dog:before{content:"🐕";font-size:4.5rem}.piece-cat:before{content:"🐱";font-size:4.5rem}.piece-mouse:before{content:"🐭";font-size:4.5rem}@media (min-width: 1440px){.piece-elephant:before,.piece-lion:before,.piece-tiger:before,.piece-leopard:before,.piece-wolf:before,.piece-dog:before,.piece-cat:before,.piece-mouse:before{font-size:5rem}}@media (max-width: 1023px) and (min-width: 768px){.piece-elephant:before,.piece-lion:before,.piece-tiger:before,.piece-leopard:before,.piece-wolf:before,.piece-dog:before,.piece-cat:before,.piece-mouse:before{font-size:3rem}}@media (max-width: 767px) and (min-width: 481px){.piece-elephant:before,.piece-lion:before,.piece-tiger:before,.piece-leopard:before,.piece-wolf:before,.piece-dog:before,.piece-cat:before,.piece-mouse:before{font-size:2.8rem}}@media (max-width: 480px){.piece-elephant:before,.piece-lion:before,.piece-tiger:before,.piece-leopard:before,.piece-wolf:before,.piece-dog:before,.piece-cat:before,.piece-mouse:before{font-size:2.6rem}}.piece[data-rank="8"]:after{border-color:var(--accent-gold)}.piece[data-rank="7"]:after{border-color:var(--accent-silver)}.piece[data-rank="6"]:after{border-color:var(--accent-bronze)}.piece[data-rank="1"]:after{border-color:var(--error-color)}@keyframes flip-reveal{0%{transform:perspective(1100px) rotateY(0) scale(.98) translateY(1px);filter:brightness(.96) saturate(1);border-radius:var(--radius-md);box-shadow:0 6px 14px #00000052}30%{transform:perspective(1100px) rotateY(60deg) scale(1.02) translateY(-2px);filter:brightness(1.12) saturate(1.05);border-radius:var(--radius-lg);box-shadow:0 10px 20px #00000057,0 0 14px #7b61ff33}50%{transform:perspective(1100px) rotateY(90deg) scale(1.02) translateY(-2px);filter:brightness(1.2) saturate(1.08);border-radius:var(--radius-lg);box-shadow:0 12px 24px #0000005c,0 0 18px #7b61ff40}70%{transform:perspective(1100px) rotateY(120deg) scale(1.01) translateY(-1px);filter:brightness(1.12) saturate(1.04);border-radius:var(--radius-lg);box-shadow:0 10px 22px #00000052,0 0 14px #7b61ff2e}to{transform:perspective(1100px) rotateY(180deg) scale(1) translateY(0);filter:brightness(1) saturate(1);border-radius:var(--radius-md);box-shadow:0 6px 14px #00000052}}.piece.flipping{animation:flip-reveal 1.05s ease-in-out;animation-fill-mode:both;z-index:50;will-change:transform,filter,box-shadow}@keyframes piece-move{0%{transform:scale(1) translateY(0) rotate(0);box-shadow:0 4px 8px #0003}20%{transform:scale(1.1) translateY(-12px) rotate(2deg);box-shadow:0 16px 32px #0000004d}60%{transform:scale(1.15) translateY(-16px) rotate(-1deg);box-shadow:0 20px 40px #0006}80%{transform:scale(1.05) translateY(-8px) rotate(1deg);box-shadow:0 12px 24px #0000004d}to{transform:scale(1) translateY(0) rotate(0);box-shadow:0 4px 8px #0003}}.piece.moving{animation:piece-move .6s var(--ease-emphasized);z-index:100}@keyframes piece-eaten{0%{transform:scale(1) rotate(0);opacity:1;filter:brightness(1);border-radius:var(--radius-md)}25%{transform:scale(1.3) rotate(90deg);opacity:.9;filter:brightness(1.5) hue-rotate(30deg);border-radius:var(--radius-lg)}50%{transform:scale(1.4) rotate(180deg);opacity:.6;filter:brightness(2) hue-rotate(60deg) blur(2px);border-radius:var(--radius-xl)}75%{transform:scale(.6) rotate(270deg);opacity:.3;filter:brightness(.5) hue-rotate(90deg) blur(4px);border-radius:var(--radius-full)}to{transform:scale(0) rotate(360deg);opacity:0;filter:brightness(0) blur(8px);border-radius:var(--radius-full)}}.piece.eaten{animation:piece-eaten 1s var(--ease-emphasized) forwards}@keyframes shake-modern{0%,to{transform:translate(0) rotate(0)}10%{transform:translate(-8px) rotate(-2deg)}20%{transform:translate(8px) rotate(2deg)}30%{transform:translate(-6px) rotate(-1deg)}40%{transform:translate(6px) rotate(1deg)}50%{transform:translate(-4px) rotate(-.5deg)}60%{transform:translate(4px) rotate(.5deg)}70%{transform:translate(-2px) rotate(0)}80%{transform:translate(2px) rotate(0)}90%{transform:translate(-1px) rotate(0)}}.piece.invalid-move{animation:shake-modern .6s var(--ease-emphasized);border-color:var(--error-color)!important}@keyframes victory-celebration{0%,to{transform:scale(1) rotate(0)}25%{transform:scale(1.2) rotate(5deg)}50%{transform:scale(1.3) rotate(-5deg)}75%{transform:scale(1.1) rotate(3deg)}}.piece.victory{animation:victory-celebration .8s ease-in-out 3;filter:drop-shadow(0 0 20px var(--accent-gold))}@keyframes board-fade-in{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.game-board{animation:board-fade-in .8s var(--ease-out-cubic)}@keyframes piece-appear{0%{opacity:0;transform:scale(0) translateY(-20px)}50%{opacity:.8;transform:scale(1.1) translateY(-5px)}to{opacity:1;transform:scale(1) translateY(0)}}.piece.appearing{animation:piece-appear .6s var(--ease-out-cubic) forwards}.game-messages{background:var(--game-bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-md);padding:clamp(var(--space-md),2vw,var(--space-lg));width:100%;box-shadow:var(--elevation-2);max-height:clamp(180px,36vh,240px);overflow-y:auto;position:relative;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.game-messages:before{content:"💬";position:absolute;top:var(--space-md);right:var(--space-md);font-size:1.2rem;opacity:.5}.game-messages::-webkit-scrollbar{width:6px}.game-messages::-webkit-scrollbar-track{background:var(--game-bg-tertiary);border-radius:var(--radius-full)}.game-messages::-webkit-scrollbar-thumb{background:var(--accent-gold);border-radius:var(--radius-full);transition:background .3s ease}.game-messages::-webkit-scrollbar-thumb:hover{background:var(--warning-color)}.message-item{padding:var(--space-sm) 0;border-bottom:1px solid var(--border-secondary);font-size:var(--font-size-body-medium);color:var(--text-secondary);position:relative;padding-left:var(--space-lg);animation:message-slide-in .3s var(--ease-out-cubic)}.message-item:before{content:"•";position:absolute;left:0;top:var(--space-sm);color:var(--accent-gold);font-size:1.2rem}.message-item:last-child{border-bottom:none}.message-item.important{color:var(--accent-gold);font-weight:500;background:#ffd7000d;border-radius:var(--radius-xs);padding:var(--space-sm) var(--space-md);margin:var(--space-xs) 0}.message-item.important:before{content:"⭐"}.message-item.error{color:var(--error-color);font-weight:500;background:#ff47571a;border-radius:var(--radius-xs);padding:var(--space-sm) var(--space-md);margin:var(--space-xs) 0}.message-item.error:before{content:"⚠️"}.message-item.success{color:var(--success-color);font-weight:500;background:#2ed5731a;border-radius:var(--radius-xs);padding:var(--space-sm) var(--space-md);margin:var(--space-xs) 0}.message-item.success:before{content:"✓"}@keyframes message-slide-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;align-items:center;justify-content:center;animation:modal-fade-in .3s var(--ease-out-cubic)}.modal.show{display:flex}@keyframes modal-fade-in{0%{opacity:0;-webkit-backdrop-filter:blur(0px);backdrop-filter:blur(0px)}to{opacity:1;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}}.modal-content{background:var(--game-bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:var(--space-3xl);text-align:center;box-shadow:var(--elevation-5);max-width:480px;width:90%;position:relative;overflow:hidden;animation:modal-scale-in .4s var(--ease-emphasized)}.modal-content:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent-gold),var(--success-color),var(--blue-beast-primary));background-size:200% 100%;animation:gradient-flow 3s ease-in-out infinite}@keyframes gradient-flow{0%,to{background-position:0% 0%}50%{background-position:100% 0%}}@keyframes modal-scale-in{0%{transform:scale(.8) translateY(20px);opacity:0}50%{transform:scale(1.02) translateY(-2px);opacity:.9}to{transform:scale(1) translateY(0);opacity:1}}.modal-content h2{color:var(--accent-gold);font-size:var(--font-size-display-small);font-weight:700;margin-bottom:var(--space-md);text-shadow:0 2px 4px rgba(0,0,0,.3);background:linear-gradient(45deg,var(--accent-gold),var(--warning-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.modal-content p{color:var(--text-secondary);font-size:var(--font-size-title-medium);margin-bottom:var(--space-2xl);line-height:1.5}.modal-buttons{display:flex;gap:var(--space-md);justify-content:center;flex-wrap:wrap}@media (min-width: 1440px){.game-container{grid-template-columns:clamp(360px,23vw,520px) minmax(0,1fr) clamp(360px,23vw,520px);gap:clamp(var(--space-sm),1.4vw,var(--space-md));--container-padding: var(--space-2xl)}.game-main{max-width:min(clamp(1120px,60vw,1320px),100%)}.game-board{width:min(100%,clamp(500px,44vw,760px));height:clamp(500px,44vw,760px)}.game-messages{max-height:clamp(200px,28vh,260px)}.piece{font-size:2.7rem}}@media (max-width: 1439px) and (min-width: 1024px){.game-container{grid-template-columns:clamp(260px,23vw,360px) minmax(0,1fr) clamp(260px,23vw,360px);gap:clamp(var(--space-xs),1.1vw,var(--space-sm));--container-padding: clamp(var(--space-md), 2vw, var(--space-lg))}.game-main{max-width:min(clamp(1020px,54vw,1260px),100%)}.game-board{width:min(100%,clamp(460px,43vw,720px));height:clamp(460px,43vw,720px)}.game-messages{max-height:clamp(180px,32vh,230px)}.piece{font-size:2.4rem}}@media (max-width: 1023px) and (min-width: 768px){.game-container{grid-template-columns:1fr;grid-template-areas:"main" "sidebar-left" "sidebar-right";gap:var(--space-lg);--container-padding: var(--space-lg)}.game-main{order:1;padding:var(--space-md)}.game-sidebar-left{order:2;position:static;max-width:600px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md);max-height:none;height:auto;overflow:visible;scrollbar-gutter:auto}.game-sidebar-right{order:3;position:static;max-width:600px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--space-md);max-height:none;height:auto;overflow:visible;scrollbar-gutter:auto}.game-board{width:min(85vw,500px);height:min(85vw,500px);padding:var(--space-md)}.rules-section{max-height:none;overflow-y:visible}.turn-title{font-size:1.3rem;padding:10px 28px}.game-messages{width:100%}.piece{font-size:2.2rem}.game-title{font-size:var(--font-size-display-small)}}@media (max-width: 767px) and (min-width: 481px){.game-container{grid-template-columns:1fr;grid-template-areas:"main" "sidebar-left" "sidebar-right";gap:var(--space-sm);--container-padding: var(--space-sm)}.game-main{order:1;padding:var(--space-sm);gap:var(--space-sm);justify-content:flex-start;height:auto;min-height:auto}.game-sidebar-left{order:2;position:static;max-width:600px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm);max-height:none;height:auto;overflow:visible;scrollbar-gutter:auto}.game-sidebar-right{order:3;position:static;max-width:600px;margin:0 auto;display:grid;grid-template-columns:1fr;gap:var(--space-sm);max-height:none;height:auto;overflow:visible;scrollbar-gutter:auto}.game-board{width:min(88vw,380px);height:min(88vw,380px);padding:var(--space-sm);gap:clamp(6px,2vw,10px)}.rules-section{max-height:none;overflow-y:visible}.turn-title{font-size:1.2rem;padding:8px 24px}.turn-indicator{min-height:50px;margin-bottom:var(--space-md)}.game-messages{width:100%}.piece{font-size:2rem}}@media (max-width: 480px){.game-container{grid-template-columns:1fr;grid-template-areas:"main" "sidebar-left" "sidebar-right";gap:var(--space-xs);--container-padding: var(--space-xs)}.game-main{order:1;padding:var(--space-xs);gap:var(--space-sm);justify-content:flex-start;height:auto;min-height:auto}.game-sidebar-left{order:2;position:static;padding:var(--space-md);display:grid;grid-template-columns:1fr;gap:var(--space-sm);max-height:none;height:auto;overflow:visible;scrollbar-gutter:auto}.game-sidebar-right{order:3;position:static;padding:var(--space-md);display:grid;grid-template-columns:1fr;gap:var(--space-sm);max-height:none;height:auto;overflow:visible;scrollbar-gutter:auto}.game-title{font-size:var(--font-size-headline-large)}.game-board{width:min(92vw,340px);height:min(92vw,340px);padding:10px;gap:clamp(4px,1.5vw,8px)}.rules-section{max-height:none;overflow-y:visible}.turn-title{font-size:1rem;padding:6px 20px}.turn-indicator{min-height:45px;margin-bottom:var(--space-sm)}.game-messages{width:100%;padding:var(--space-md)}.piece{font-size:1.8rem}.board-cell{border-radius:16px}.modal-content{padding:var(--space-xl);width:95%}.modal-buttons{flex-direction:column;gap:var(--space-sm)}.btn{padding:var(--space-md);font-size:var(--font-size-body-large)}}@media (min-width: 1920px){.game-container{max-width:2000px;grid-template-columns:clamp(420px,24vw,600px) minmax(0,1fr) clamp(420px,24vw,600px);gap:clamp(var(--space-md),1.8vw,var(--space-lg));--container-padding: var(--space-3xl)}.game-main{max-width:min(clamp(1280px,60vw,1520px),100%)}.game-board{width:min(100%,clamp(540px,46vw,820px));height:clamp(540px,46vw,820px)}.game-messages{max-height:clamp(220px,24vh,300px)}.piece{font-size:2.8rem}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}.piece.flipping,.piece.moving,.piece.eaten,.modal-content{animation:none!important}}@media (prefers-contrast: high){:root{--text-primary: #ffffff;--text-secondary: #ffffff;--border-primary: #ffffff;--border-secondary: #cccccc}.piece.red{background:red!important;border:4px solid #ffffff!important;color:#fff!important;border-radius:var(--radius-md)!important;box-shadow:0 4px 12px #000c!important}.piece.blue{background:#00f!important;border:4px solid #ffffff!important;color:#fff!important;border-radius:var(--radius-md)!important;box-shadow:0 4px 12px #000c!important}.piece.hidden{background:#666!important;border:4px solid #ffffff!important;color:#fff!important;border-radius:var(--radius-md)!important;box-shadow:0 4px 12px #000c!important}.board-cell{border:2px solid #ffffff!important}.game-board{border:4px solid #ffffff!important}.turn-title{background:#000!important;color:#fff!important;border:3px solid #ffffff!important;box-shadow:0 2px 8px #000c!important}}@media (prefers-color-scheme: light){:root{--game-bg-primary: #f8f9fa;--game-bg-secondary: #ffffff;--game-bg-tertiary: #f1f3f4;--text-primary: #202124;--text-secondary: #5f6368;--border-primary: #dadce0}body{background:linear-gradient(135deg,#f8f9fa,#e8eaed,#dadce0)}}.board-cell:focus{outline:3px solid var(--accent-gold);outline-offset:2px;z-index:100}.piece:focus{outline:3px solid var(--accent-gold);outline-offset:2px;z-index:101}.btn:focus{outline:3px solid var(--accent-gold);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (hover: none) and (pointer: coarse){.board-cell,.piece{min-height:44px;min-width:44px}.btn{min-height:44px;padding:var(--space-md) var(--space-lg)}.board-cell:hover,.piece:hover{transform:none}}.focus-indicator{position:fixed;top:0;left:0;width:4px;height:4px;background:var(--accent-gold);border-radius:50%;pointer-events:none;z-index:9999;opacity:0;transition:all .1s ease}.focus-indicator.active{opacity:1;transform:scale(3)}@media (prefers-contrast: high){.board-cell:focus,.piece:focus,.btn:focus{outline:4px solid #ffff00;outline-offset:2px}}@media (min-resolution: 2dppx){.piece{font-size:calc(var(--piece-font-size, 2.2rem) * .9)}}@media print{body{background:#fff;color:#000}.game-container{box-shadow:none;border:1px solid black}.modal,.game-controls{display:none}}.piece-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:2rem;font-weight:700;color:#fff;text-shadow:1px 1px 2px black;pointer-events:none;z-index:10}.lobby-overlay{width:100%;height:100%;display:flex;flex-direction:column;align-items:stretch;justify-content:center;gap:2rem;padding:2rem 0;animation:fade-in .5s ease-out}@keyframes fade-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.local-play-option{margin-top:1rem}.text-btn{background:transparent;border:none;color:var(--text-secondary);font-size:.9rem;cursor:pointer;text-decoration:underline;transition:color .3s}.text-btn:hover{color:var(--accent-gold)}.game-messages-section{background:var(--game-bg-tertiary);border:1px solid var(--border-secondary);border-radius:var(--radius-md);padding:clamp(var(--space-md),2vw,var(--space-lg));box-shadow:var(--elevation-1);position:relative;overflow:hidden;flex:1;display:flex;flex-direction:column;min-height:200px}.game-messages-section:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--info-color),var(--accent-gold))}.game-messages-section .section-title{font-size:var(--font-size-title-medium);font-weight:600;color:var(--accent-gold);margin-bottom:var(--space-md);text-align:center;letter-spacing:.05em;flex-shrink:0}.game-messages{flex:1;overflow-y:auto;padding:var(--space-md);height:100%;min-height:0;max-height:none;display:flex;flex-direction:column;background:#0003;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.05)}.toast-container{position:fixed;top:var(--space-lg);left:50%;transform:translate(-50%);z-index:2000;pointer-events:none}.toast{background:#000c;color:var(--text-primary);padding:12px 18px;border-radius:var(--radius-md);box-shadow:var(--elevation-2);border:1px solid rgba(255,255,255,.08);min-width:220px;text-align:center;letter-spacing:.02em;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.toast.info{border-color:var(--accent-gold);color:var(--accent-gold)}.toast.error{border-color:var(--error-color);color:var(--error-color)}.toast.success{border-color:var(--success-color);color:var(--success-color)}.toast-fade-enter-active,.toast-fade-leave-active{transition:opacity .25s ease,transform .25s ease}.toast-fade-enter-from,.toast-fade-leave-to{opacity:0;transform:translate(-50%,-10px)}.message-list{display:flex;flex-direction:column;gap:8px}.message-item{padding:8px 12px;border-radius:6px;background:#ffffff0d;font-size:.9rem;color:var(--text-secondary);border-left:3px solid transparent;animation:slide-in .3s ease-out}.message-item.info{border-left-color:var(--info-color)}.message-item.success{border-left-color:var(--success-color);background:#2ed5731a;color:#e0f7fa}.message-item.warning{border-left-color:var(--warning-color);background:#ffa5021a;color:#fff3e0}.message-item.error{border-left-color:var(--error-color);background:#ff47571a;color:#ffebee}.message-item .bullet{margin-right:6px;opacity:.7}@keyframes slide-in{0%{opacity:0;transform:translate(10px)}to{opacity:1;transform:translate(0)}}.rules-btn{position:relative;width:100%;padding:14px 16px;border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.2);background:linear-gradient(120deg,#ff475726,#5352ed26);color:var(--text-primary);font-size:1rem;font-weight:700;letter-spacing:.02em;cursor:pointer;overflow:hidden;box-shadow:0 10px 30px #00000059,inset 0 0 0 1px #ffffff0f;transition:transform .2s ease,box-shadow .3s ease,border-color .3s ease;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.rules-btn-glow{position:absolute;top:-30%;right:-30%;bottom:-30%;left:-30%;background:radial-gradient(circle at 30% 30%,rgba(255,71,87,.35),transparent 50%),radial-gradient(circle at 70% 70%,rgba(83,82,237,.35),transparent 50%);filter:blur(18px);opacity:.6;transition:opacity .3s ease}.rules-btn-label,.rules-btn-sub{position:relative;display:block;z-index:1}.rules-btn-sub{font-size:.78rem;color:var(--text-secondary);font-weight:500}.rules-btn:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;border:1px solid rgba(255,255,255,.22);mix-blend-mode:screen;opacity:.8}.rules-btn:hover{transform:translateY(-2px) scale(1.01);box-shadow:0 18px 40px #00000080,0 0 25px #ff475759,0 0 25px #5352ed59;border-color:#ffffff59}.rules-btn:hover .rules-btn-glow{opacity:.9}.rules-btn:active{transform:translateY(0);box-shadow:0 10px 30px #00000059}.rules-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#05070cbf;display:flex;justify-content:center;align-items:center;z-index:1100;-webkit-backdrop-filter:blur(8px) saturate(120%);backdrop-filter:blur(8px) saturate(120%);padding:24px}.rules-modal{position:relative;width:min(820px,94vw);max-height:90vh;background:linear-gradient(145deg,#121322e6,#0a0c18f0);border-radius:18px;border:1px solid rgba(255,255,255,.08);box-shadow:0 18px 48px #0009,0 0 30px #5352ed40;padding:22px clamp(18px,3vw,28px);color:var(--text-primary);overflow:hidden}.rules-modal:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 20% 20%,rgba(255,71,87,.12),transparent 38%),radial-gradient(circle at 80% 0%,rgba(83,82,237,.16),transparent 35%),radial-gradient(circle at 60% 80%,rgba(255,215,0,.08),transparent 45%);pointer-events:none}.rules-modal-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px}.rules-title-wrap h2{font-size:1.6rem;margin:0;background:linear-gradient(120deg,#ff4757,gold,#5352ed);background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:gradient-shift 6s ease infinite}.rules-subtitle{margin:4px 0 0;color:var(--text-secondary);font-size:.9rem;letter-spacing:.05em}.rules-title-accent{display:block;width:68px;height:4px;border-radius:999px;background:linear-gradient(90deg,#ff4757cc,#ffd700cc,#5352edcc);box-shadow:0 0 12px #ff475766,0 0 12px #5352ed59;margin-bottom:8px}.rules-close{background:#ffffff0f;border:1px solid rgba(255,255,255,.1);color:var(--text-primary);width:38px;height:38px;border-radius:12px;font-size:1.3rem;cursor:pointer;box-shadow:inset 0 0 0 1px #ffffff0d;transition:transform .2s ease,box-shadow .3s ease,background .3s ease}.rules-close:hover{transform:translateY(-2px);box-shadow:0 10px 24px #00000059,0 0 16px #5352ed59;background:#ffffff1f}.rules-content{position:relative;background:#ffffff05;border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:clamp(14px,2.2vw,20px);box-shadow:inset 0 1px #ffffff14;max-height:60vh;overflow-y:auto;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.rules-content::-webkit-scrollbar{width:8px}.rules-content::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#ff475780,#5352ed80);border-radius:999px}.rule-block+.rule-block{margin-top:14px;padding-top:12px;border-top:1px dashed rgba(255,255,255,.12)}.rule-block h3{margin:0 0 8px;font-size:1.05rem;letter-spacing:.02em}.rule-block ul{margin:0;padding-left:18px;color:var(--text-secondary);line-height:1.6}.rule-block li+li{margin-top:4px}.rules-actions{margin-top:16px;display:flex;justify-content:flex-end}@media (max-width: 768px){.rules-modal{padding:18px}.rules-btn{text-align:left}}.piece-text-corner[data-v-7a1fa0f4]{position:absolute;font-size:1.2rem;font-weight:700;color:inherit;text-shadow:0 0 2px rgba(0,0,0,.8);pointer-events:none;line-height:1;z-index:10}.top-left[data-v-7a1fa0f4]{top:6px;left:6px}.bottom-right[data-v-7a1fa0f4]{bottom:6px;right:6px;transform:rotate(180deg)}.piece.red .piece-text-corner[data-v-7a1fa0f4]{color:#ff4757}.piece.blue .piece-text-corner[data-v-7a1fa0f4]{color:#5352ed}@media (max-width: 480px){.piece-text-corner[data-v-7a1fa0f4]{font-size:.9rem}.top-left[data-v-7a1fa0f4]{top:4px;left:4px}.bottom-right[data-v-7a1fa0f4]{bottom:4px;right:4px}}.lobby-container[data-v-e9d16807]{background:#161b22f2;padding:3rem;border-radius:24px;text-align:center;max-width:1100px;width:100%;height:100%;max-height:calc(100vh - 2 * var(--container-padding));min-height:calc(100vh - 2 * var(--container-padding));-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:2.5rem}.lobby-title[data-v-e9d16807]{font-size:2rem;font-weight:800;background:linear-gradient(135deg,gold,#fa0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0;letter-spacing:2px;text-shadow:0 2px 10px rgba(255,215,0,.2)}.lobby-content[data-v-e9d16807]{display:flex;flex-direction:column;gap:2rem;text-align:left;flex:1;height:100%;min-height:0}.lobby-actions-panel[data-v-e9d16807]{display:flex;flex-direction:column;gap:1.5rem;padding-bottom:2rem;border-bottom:1px solid rgba(255,255,255,.05);border-right:none;padding-right:0}.action-group[data-v-e9d16807]{flex:1;background:#ffffff05;padding:1.5rem;border-radius:16px;border:1px solid rgba(255,255,255,.03)}.action-group h3[data-v-e9d16807]{font-size:1.1rem;color:#e6edf3;margin-bottom:.5rem}.action-desc[data-v-e9d16807]{font-size:.85rem;color:#8b949e;margin-bottom:1rem}.action-btn[data-v-e9d16807]{padding:.8rem 1.5rem;border:none;border-radius:12px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;gap:.5rem}.create-btn[data-v-e9d16807]{width:100%;padding:1rem;font-size:1.1rem;background:linear-gradient(135deg,gold,#ff8c00);color:#1a1a1a;box-shadow:0 4px 15px #ffd70033}.create-btn[data-v-e9d16807]:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px #ffd7004d}.action-btn[data-v-e9d16807]:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(1)}.lobby-rooms-panel[data-v-e9d16807]{display:flex;flex-direction:column;flex:1;min-height:0}.room-list-header[data-v-e9d16807]{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.room-list-header h3[data-v-e9d16807]{font-size:1.1rem;color:#e6edf3;margin:0}.refresh-btn[data-v-e9d16807]{background:transparent;border:none;color:#8b949e;cursor:pointer;font-size:.9rem;display:flex;align-items:center;gap:4px;padding:4px 8px;border-radius:6px;transition:all .2s}.refresh-btn[data-v-e9d16807]:hover:not(:disabled){color:gold;background:#ffffff0d}.room-list-container[data-v-e9d16807]{flex:1;height:100%;background:#0003;border-radius:16px;border:1px solid rgba(255,255,255,.05);padding:1rem;overflow-y:auto}.room-empty[data-v-e9d16807]{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#8b949e;gap:1rem}.empty-icon[data-v-e9d16807]{font-size:3rem;opacity:.5}.room-items[data-v-e9d16807]{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}.room-item[data-v-e9d16807]{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:#ffffff08;border-radius:12px;border:1px solid rgba(255,255,255,.03);transition:all .2s ease}.room-item[data-v-e9d16807]:hover{background:#ffffff0f;border-color:#ffffff1a;transform:translateY(-2px)}.room-info[data-v-e9d16807]{display:flex;flex-direction:column;gap:.4rem}.room-id .label[data-v-e9d16807]{color:#8b949e;font-size:.8rem;margin-right:6px}.room-id .value[data-v-e9d16807]{color:#e6edf3;font-weight:700;font-family:monospace;letter-spacing:1px}.room-status-badge[data-v-e9d16807]{display:inline-block;font-size:.75rem;padding:2px 8px;border-radius:10px;font-weight:600}.room-status-badge.waiting[data-v-e9d16807]{background:#2ed57326;color:#2ed573}.room-status-badge.playing[data-v-e9d16807]{background:#ff475726;color:#ff4757}.room-meta[data-v-e9d16807]{display:flex;flex-direction:column;align-items:flex-end;gap:.2rem;margin-right:1rem}.room-seats[data-v-e9d16807]{color:#e6edf3;font-size:.9rem;font-weight:600}.room-time[data-v-e9d16807]{color:#8b949e;font-size:.8rem}.item-join-btn[data-v-e9d16807]{padding:.5rem 1.2rem;font-size:.9rem;background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.1)}.item-join-btn[data-v-e9d16807]:hover:not(:disabled){background:#2ed573;border-color:#2ed573;color:#fff}.error-message[data-v-e9d16807]{margin-top:1rem;color:#ff4757;font-size:.9rem;background:#ff47571a;padding:.8rem;border-radius:8px;border:1px solid rgba(255,71,87,.2);display:flex;align-items:center;justify-content:center}@media (max-width: 768px){.lobby-actions-panel[data-v-e9d16807]{flex-direction:column;gap:1rem}.lobby-container[data-v-e9d16807]{padding:1.5rem}}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal-content{background:var(--bg-secondary);padding:2rem;border-radius:16px;text-align:center;border:1px solid var(--border-color);box-shadow:0 10px 30px #00000080;max-width:90%;width:400px}.victory-title{font-size:2rem;margin-bottom:1rem;background:linear-gradient(135deg,gold,#fa0);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.victory-message{font-size:1.2rem;margin-bottom:2rem;color:var(--text-primary)}.my-color-info{margin-top:1rem;padding:.5rem;border-radius:8px;text-align:center;font-weight:700;font-size:1.2rem}.my-color-info.red{background-color:#f003;color:#ff4d4d;border:1px solid #ff4d4d}.my-color-info.blue{background-color:#00f3;color:#4d4dff;border:1px solid #4d4dff}.player-name{font-weight:700;padding:0 4px}.player-name.red{color:#ff4757}.player-name.blue{color:#5352ed}