:root{--color-primary-50: #eff6ff;--color-primary-100: #dbeafe;--color-primary-200: #bfdbfe;--color-primary-300: #93c5fd;--color-primary-400: #60a5fa;--color-primary-500: #3b82f6;--color-primary-600: #2563eb;--color-primary-700: #1d4ed8;--color-primary-800: #1e40af;--color-primary-900: #1e3a8a;--color-brand-indigo: #4f46e5;--color-brand-blue: #0593fc;--color-brand-royal: #0182fc;--color-secondary-50: #ecfeff;--color-secondary-100: #cffafe;--color-secondary-200: #a5f3fc;--color-secondary-300: #67e8f9;--color-secondary-400: #22d3ee;--color-secondary-500: #06b6d4;--color-secondary-600: #0891b2;--color-secondary-700: #0e7490;--color-secondary-800: #155e75;--color-secondary-900: #164e63;--color-teal: #4ecdc4;--color-cyan: #45b7d1;--color-neon-cyan: #00f5ff;--color-bright-cyan: #4facfe;--color-accent-50: #fef2f2;--color-accent-100: #fee2e2;--color-accent-200: #fecaca;--color-accent-300: #fca5a5;--color-accent-400: #f87171;--color-accent-500: #ef4444;--color-accent-600: #dc2626;--color-accent-700: #b91c1c;--color-accent-800: #991b1b;--color-accent-900: #7f1d1d;--color-red-vibrant: #fd4755;--color-red-dark: #fb2b3a;--color-red-deeper: #e41f2d;--color-success-50: #f0fdf4;--color-success-100: #dcfce7;--color-success-200: #bbf7d0;--color-success-300: #86efac;--color-success-400: #4ade80;--color-success-500: #22c55e;--color-success-600: #16a34a;--color-success-700: #15803d;--color-success-800: #166534;--color-success-900: #14532d;--color-green-fresh: #97d729;--color-green-dark: #8bc727;--color-warning-50: #fffbeb;--color-warning-100: #fef3c7;--color-warning-200: #fde68a;--color-warning-300: #fcd34d;--color-warning-400: #fbbf24;--color-warning-500: #f59e0b;--color-warning-600: #d97706;--color-warning-700: #b45309;--color-warning-800: #92400e;--color-warning-900: #78350f;--color-yellow-golden: #ffd15b;--color-orange-warm: #fe7701;--color-orange-dark: #f46700;--color-orange-muted: #fdb441;--color-royal-50: #faf5ff;--color-royal-100: #f3e8ff;--color-royal-200: #e9d5ff;--color-royal-300: #d8b4fe;--color-royal-400: #c084fc;--color-royal-500: #a855f7;--color-royal-600: #9333ea;--color-royal-700: #7c3aed;--color-royal-800: #6b21a8;--color-royal-900: #581c87;--color-purple-deep: #6354b1;--color-purple-darker: #54469c;--color-neutral-50: #f8fafc;--color-neutral-100: #f1f5f9;--color-neutral-200: #e2e8f0;--color-neutral-300: #cbd5e1;--color-neutral-400: #94a3b8;--color-neutral-500: #64748b;--color-neutral-600: #475569;--color-neutral-700: #334155;--color-neutral-800: #1e293b;--color-neutral-900: #0f172a;--color-dark-bg: #0a0a0f;--color-dark-surface: #1a1a2e;--color-background-primary: var(--color-neutral-50);--color-background-secondary: var(--color-neutral-100);--color-background-card: #ffffff;--color-background-overlay: rgba(255, 255, 255, .95);--color-background-soft: var(--color-primary-50);--color-text-primary: var(--color-neutral-800);--color-text-secondary: var(--color-neutral-600);--color-text-muted: var(--color-neutral-500);--color-text-on-dark: #ffffff;--color-text-on-color: #ffffff;--color-border-light: var(--color-neutral-200);--color-border-medium: var(--color-neutral-300);--color-border-strong: var(--color-neutral-400);--color-button-primary: var(--color-brand-indigo);--color-button-primary-hover: var(--color-primary-700);--color-button-secondary: var(--color-neutral-600);--color-button-secondary-hover: var(--color-neutral-700);--color-button-success: var(--color-green-fresh);--color-button-success-hover: var(--color-success-700);--color-button-danger: var(--color-red-vibrant);--color-button-danger-hover: var(--color-red-dark);--color-button-warning: var(--color-orange-warm);--color-button-warning-hover: var(--color-warning-700);--color-link: var(--color-brand-blue);--color-link-hover: var(--color-primary-700);--color-focus: var(--color-brand-indigo);--color-selection: var(--color-primary-100);--color-status-info: var(--color-brand-blue);--color-status-success: var(--color-green-fresh);--color-status-warning: var(--color-orange-warm);--color-status-error: var(--color-red-vibrant);--gradient-primary: linear-gradient(135deg, var(--color-teal), var(--color-cyan));--gradient-secondary: linear-gradient(135deg, var(--color-brand-blue), var(--color-brand-indigo));--gradient-accent: linear-gradient(135deg, var(--color-orange-warm), var(--color-red-vibrant));--gradient-success: linear-gradient(135deg, var(--color-green-fresh), var(--color-secondary-600));--gradient-royal: linear-gradient(135deg, var(--color-purple-deep), var(--color-brand-indigo));--gradient-sunset: linear-gradient(135deg, var(--color-yellow-golden), var(--color-orange-warm), var(--color-red-vibrant));--gradient-ocean: linear-gradient(135deg, var(--color-bright-cyan), var(--color-brand-blue), var(--color-purple-deep));--gradient-main: linear-gradient(135deg, var(--color-teal), var(--color-cyan));--gradient-dark: linear-gradient(135deg, var(--color-neutral-900), var(--color-neutral-800));--gradient-dark-accent: linear-gradient(135deg, var(--color-dark-bg), var(--color-dark-surface));--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .1);--shadow-2xl: 0 25px 50px rgba(0, 0, 0, .25);--shadow-primary: 0 10px 15px rgba(79, 70, 229, .15);--shadow-secondary: 0 10px 15px rgba(5, 147, 252, .15);--shadow-accent: 0 10px 15px rgba(253, 71, 85, .15);--shadow-success: 0 10px 15px rgba(151, 215, 41, .15);--shadow-warning: 0 10px 15px rgba(254, 119, 1, .15);--glow-primary: 0 0 20px rgba(79, 70, 229, .3);--glow-secondary: 0 0 20px rgba(5, 147, 252, .3);--glow-accent: 0 0 20px rgba(253, 71, 85, .3);--glow-neon: 0 0 20px rgba(0, 245, 255, .6);--solitaire-card-bg: #ffffff;--solitaire-card-border: var(--color-border-light);--solitaire-red-suit: var(--color-red-vibrant);--solitaire-black-suit: var(--color-neutral-800);--solitaire-highlight: var(--color-primary-100);--solitaire-foundation: var(--color-background-soft);--snake-bg: var(--color-dark-bg);--snake-surface: var(--color-dark-surface);--snake-grid: rgba(79, 172, 254, .1);--snake-body: var(--color-brand-blue);--snake-head: var(--color-neon-cyan);--snake-food: #ff0080;--snake-accent: var(--color-bright-cyan);--snake-glow: var(--glow-neon);--tetris-block-i: var(--color-neon-cyan);--tetris-block-o: var(--color-yellow-golden);--tetris-block-t: var(--color-purple-deep);--tetris-block-s: var(--color-green-fresh);--tetris-block-z: var(--color-red-vibrant);--tetris-block-j: var(--color-brand-blue);--tetris-block-l: var(--color-orange-warm);--mine-flag: var(--color-red-vibrant);--mine-number-1: var(--color-brand-blue);--mine-number-2: var(--color-green-fresh);--mine-number-3: var(--color-red-vibrant);--mine-number-4: var(--color-purple-deep);--mine-number-5: var(--color-orange-warm);--mine-revealed: var(--color-background-secondary);--mine-hidden: var(--color-neutral-300);--tile-2: #eee4da;--tile-4: #ede0c8;--tile-8: var(--color-orange-muted);--tile-16: var(--color-orange-warm);--tile-32: var(--color-red-vibrant);--tile-64: var(--color-red-dark);--tile-128: var(--color-yellow-golden);--tile-256: var(--color-warning-500);--tile-512: var(--color-warning-600);--tile-1024: var(--color-warning-700);--tile-2048: var(--color-warning-800)}@media (prefers-color-scheme: dark){:root{--color-background-primary: var(--color-neutral-900);--color-background-secondary: var(--color-neutral-800);--color-background-card: var(--color-neutral-800);--color-background-overlay: rgba(30, 41, 59, .95);--color-background-soft: var(--color-neutral-800);--color-text-primary: var(--color-neutral-100);--color-text-secondary: var(--color-neutral-300);--color-text-muted: var(--color-neutral-400);--color-border-light: var(--color-neutral-700);--color-border-medium: var(--color-neutral-600);--color-border-strong: var(--color-neutral-500);--gradient-main: var(--gradient-dark)}}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:10000;opacity:0;visibility:hidden;transition:all .3s ease}.modal-overlay.visible{opacity:1;visibility:visible}.modal{background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;max-width:500px;width:90%;max-height:80vh;overflow-y:auto;transform:scale(.9) translateY(20px);transition:all .3s ease;position:relative;display:flex;flex-direction:column}.modal-content{display:flex;flex-direction:column;flex:1}.modal-overlay.visible .modal{transform:scale(1) translateY(0)}.modal-header{padding:24px 24px 16px;border-bottom:1px solid #e2e8f0;position:relative}.modal-title{margin:0;font-size:1.5rem;font-weight:700;color:#1e293b;text-align:center}.modal-close{position:absolute;top:16px;right:16px;background:none;border:none;font-size:24px;color:#64748b;cursor:pointer;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.modal-close:hover{background:#f1f5f9;color:#334155}.modal-body{padding:24px}.modal-footer{padding:16px 24px 24px;display:flex;gap:12px;justify-content:flex-end;border-top:1px solid #e2e8f0}.new-game-modal .modal-body{text-align:center}.game-options{display:grid;gap:20px;margin:24px 0}.option-group{text-align:left}.option-label{display:block;font-weight:600;color:#374151;margin-bottom:8px;font-size:14px}.option-buttons{display:flex;gap:8px;flex-wrap:wrap}.option-btn{padding:8px 16px;border:2px solid #e2e8f0;background:#fff;color:#374151;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;min-width:80px}.option-btn:hover{border-color:#3b82f6;background:#f0f9ff}.option-btn.active{border-color:#3b82f6;background:#3b82f6;color:#fff}.option-btn.disabled{opacity:.5;cursor:not-allowed}.game-over-modal .modal-body{text-align:center}.celebration-icon{font-size:4rem;margin-bottom:16px;animation:bounce 2s infinite}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-10px)}60%{transform:translateY(-5px)}}.game-result{margin-bottom:24px}.result-title{font-size:1.8rem;font-weight:700;margin-bottom:8px;color:#1e293b}.result-subtitle{font-size:1rem;color:#64748b;margin-bottom:20px}.game-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:16px;margin:20px 0;padding:20px;background:#f8fafc;border-radius:12px}.stat-item{text-align:center}.stat-value{font-size:1.5rem;font-weight:700;color:#3b82f6;display:block}.stat-label{font-size:.875rem;color:#64748b;margin-top:4px}.achievement-badge{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#fff;padding:8px 16px;border-radius:20px;font-size:.875rem;font-weight:600;margin:8px 4px;box-shadow:0 2px 8px #f59e0b4d}.achievement-badge:before{content:"🏆"}.modal-btn{padding:12px 24px;border:none;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;transition:all .2s ease;min-width:100px}.modal-btn-primary{background:#3b82f6;color:#fff}.modal-btn-primary:hover{background:#2563eb;transform:translateY(-1px);box-shadow:0 4px 12px #3b82f64d}.modal-btn-secondary{background:#f1f5f9;color:#475569}.modal-btn-secondary:hover{background:#e2e8f0}.modal-btn-success{background:#10b981;color:#fff}.modal-btn-success:hover{background:#059669;transform:translateY(-1px);box-shadow:0 4px 12px #10b9814d}@media screen and (orientation: landscape) and (max-height: 600px){.modal{max-width:85vw;max-height:85vh;width:auto;display:flex;flex-direction:row;overflow:hidden}.modal-header{writing-mode:vertical-rl;text-orientation:mixed;padding:16px 12px;border-bottom:none;border-right:1px solid #e2e8f0;min-width:120px;display:flex;flex-direction:column;justify-content:center;align-items:center}.modal-title{transform:rotate(180deg);white-space:nowrap;font-size:1.2rem;margin:0}.modal-close{position:absolute;top:8px;right:8px;transform:none}.modal-content{display:flex;flex-direction:row;flex:1;overflow:hidden}.modal-body{flex:1;padding:16px;overflow-y:auto;max-height:none}.modal-footer{padding:16px;border-top:none;border-left:1px solid #e2e8f0;flex-direction:column;justify-content:center;min-width:140px;gap:8px}.modal-btn{min-width:100px;width:100%}.game-stats{grid-template-columns:repeat(2,1fr);gap:12px;margin:12px 0;padding:16px}.stat-value{font-size:1.2rem}.game-options{gap:16px;margin:16px 0}.option-buttons{gap:6px}.option-btn{padding:6px 12px;font-size:13px;min-width:70px}.celebration-icon{font-size:3rem;margin-bottom:12px}.result-title{font-size:1.4rem;margin-bottom:6px}.result-subtitle{font-size:.9rem;margin-bottom:12px}}@media (max-width: 640px){.modal{width:95%;margin:20px}.modal-header{padding:20px 20px 12px}.modal-body{padding:20px}.modal-footer{padding:12px 20px 20px;flex-direction:column}.modal-btn{width:100%}.game-stats{grid-template-columns:repeat(2,1fr);gap:12px}.option-buttons{justify-content:center}}@media screen and (orientation: portrait) and (max-width: 640px){.modal{flex-direction:column!important;max-width:95%!important;width:95%!important}.modal-header{writing-mode:initial!important;text-orientation:initial!important;border-right:none!important;border-bottom:1px solid #e2e8f0!important;min-width:auto!important;padding:20px 20px 12px!important}.modal-title{transform:none!important;font-size:1.5rem!important}.modal-content{flex-direction:column!important}.modal-footer{border-left:none!important;border-top:1px solid #e2e8f0!important;min-width:auto!important;flex-direction:column!important;padding:12px 20px 20px!important}}h1{font-family:Nunito,sans-serif;font-size:1.5rem;font-weight:700;color:#374151;margin:0;text-shadow:none;white-space:nowrap}#header-container{display:flex;justify-content:center;margin-bottom:10px;width:100%;z-index:1}.logo-title{display:flex;align-items:center;gap:12px}.logo{font-size:32px;line-height:1;width:32px;height:32px;object-fit:contain}#ui-panel{display:grid;grid-template-columns:auto auto 1fr auto;align-items:center;gap:20px;padding:8px 10px;background:#fffffff2;border-radius:8px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid #e2e8f0;width:100%;max-width:900px}.game-controls{display:flex;gap:12px;align-items:center}.score-stats{display:flex;justify-content:end;align-items:center;gap:30px;width:100%}.timer-section{justify-self:end}.stat-item{display:flex;flex-direction:column;align-items:center;text-align:center}.stat-label{font-size:10px;font-weight:500;color:#6b7280;text-transform:uppercase;letter-spacing:.5px}.stat-value{font-size:20px;font-weight:700;color:#374151;text-shadow:none}.timer-display{display:flex;flex-direction:column;align-items:center}.timer-label{font-size:10px;font-weight:500;color:#6b7280;text-transform:uppercase;letter-spacing:.5px}.timer-value{font-size:18px;font-weight:600;color:#374151;font-family:Nunito,sans-serif;text-shadow:none}.ui-panel-row-1{display:contents}.logo-title{order:1}.game-controls{order:2}.score-stats{order:3}#game-container{position:relative;max-width:900px;width:100%;margin:0;background:#fffffff2;border-radius:8px;padding:20px;box-shadow:0 8px 32px #0000001a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid #e2e8f0}#game-container.fullscreen{max-width:100%}@media (max-width: 768px){#game-container{max-width:100%;margin:10px 0;padding:15px;border-radius:6px;box-shadow:0 4px 16px #0000001a}}@media (max-width: 480px){#game-container{margin:5px 0;padding:10px;border-radius:4px}}.game-instructions{text-align:center;color:#6b7280;font-size:14px;margin:10px 0;max-width:350px}.game-over{position:absolute;top:0;left:0;width:100%;height:100%;background:#ffffffe6;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:6px;z-index:10}.game-over h2{margin:0 0 20px;color:#776e65}.game-over.won h2{color:#f67c5f}.game-info{background:#fffffffa;margin:10px auto;padding:0;border-radius:12px;box-shadow:0 4px 24px #0000001a;max-width:900px;border:1px solid #e2e8f0}.game-info-container{padding:32px}.game-info-content{display:grid;gap:32px}.game-info h2{margin:0;padding:0}.game-info h3{color:#334155;font-size:1.4rem;font-weight:600;margin:0 0 16px;border-bottom:1px solid #e2e8f0;padding-bottom:8px}.game-info h4{color:#475569;font-size:1.1rem;font-weight:600;margin:16px 0 12px}.game-info p{color:#64748b;line-height:1.6;margin:0 0 16px}.game-info ul,.game-info ol{color:#64748b;line-height:1.6;margin:0 0 16px;padding-left:24px}.game-info li{margin-bottom:8px}.game-info li strong{color:#334155;font-weight:600}.game-info-header{margin-bottom:40px}.faq-item{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid #e2e8f0}.faq-item:last-child{margin-bottom:0;border-bottom:none;padding-bottom:0}.faq-item h4{color:#1e293b;font-size:1.1rem;font-weight:600;margin:0 0 12px;cursor:pointer;position:relative;padding-left:24px}.faq-item h4:before{content:"❓";position:absolute;left:0;font-size:1rem}.faq-item p{margin:0;color:#475569;line-height:1.6;padding-left:24px}@media (max-width: 768px){#ui-panel{grid-template-columns:1fr;gap:0;text-align:center}.ui-panel-row-1{display:flex!important;justify-content:space-between!important;align-items:center!important;width:100%!important;margin-bottom:2px!important;border-bottom:1px solid #e2e8f0!important;padding-bottom:8px}.logo-title{flex:1!important;order:1!important}.game-controls{order:2!important;flex-shrink:0!important;justify-content:center;flex-wrap:wrap;gap:8px}.logo-title h1{font-size:1.2rem!important}.logo{font-size:24px;line-height:1;width:24px;height:24px;object-fit:contain}.score-stats{justify-content:space-between;width:100%}.stat-value{font-size:16px!important;font-weight:600!important}.stat-label{font-size:9px!important;font-weight:500!important}.timer-section{justify-self:center}}.mobile-only{display:none}.desktop-only{display:inline}@media (max-width: 768px){.mobile-only{display:inline}.desktop-only{display:none}}@media (max-width: 768px){.game-info{margin:10px auto;border-radius:8px}.game-info-container{padding:24px 20px}.game-info h2{font-size:1.6rem}.game-description{font-size:1rem}.game-info-content{gap:16px}}@media (max-width: 480px){.game-info-container{padding:20px 16px}.game-info h2{font-size:1.4rem}.game-info h3{font-size:1.2rem}.faq-item h4{font-size:1rem;padding-left:20px}.faq-item p{padding-left:20px}}