.App{min-height:100vh;display:flex;flex-direction:column}.loading{display:flex;justify-content:center;align-items:center;min-height:200px}.loading-spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.3);border-top:3px solid white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);border-radius:.5rem;padding:1rem;color:#fca5a5;text-align:center}.success{background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.3);border-radius:.5rem;padding:1rem;color:#6ee7b7;text-align:center}.game-container{display:flex;flex-direction:column;align-items:center;padding:2rem;min-height:100vh}.game-board{background:rgba(255,255,255,.1);border-radius:1rem;padding:2rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);box-shadow:0 20px 25px -5px #0000001a}@media (max-width: 768px){.game-container,.game-board{padding:1rem}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #667eea;--secondary-color: #764ba2;--accent-color: #f093fb;--success-color: #10b981;--warning-color: #f59e0b;--error-color: #ef4444;--info-color: #3b82f6;--bg-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--bg-secondary: rgba(255, 255, 255, .1);--bg-card: rgba(255, 255, 255, .05);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .8);--text-muted: rgba(255, 255, 255, .6);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);--transition-fast: .15s ease-in-out;--transition-normal: .3s ease-in-out;--transition-slow: .5s ease-in-out}html{font-size:16px;scroll-behavior:smooth}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.2;margin-bottom:var(--spacing-md)}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}p{margin-bottom:var(--spacing-md)}a{color:var(--text-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-color)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.row{display:flex;flex-wrap:wrap;margin:0 -var(--spacing-sm)}.col{flex:1;padding:0 var(--spacing-sm)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--radius-lg);font-size:1rem;font-weight:500;text-decoration:none;cursor:pointer;transition:all var(--transition-normal);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-primary{background:var(--bg-secondary);color:var(--text-primary);border:1px solid rgba(255,255,255,.2)}.btn-primary:hover{background:rgba(255,255,255,.2);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-success{background:var(--success-color);color:#fff}.btn-warning{background:var(--warning-color);color:#fff}.btn-error{background:var(--error-color);color:#fff}.card{background:var(--bg-card);border-radius:var(--radius-xl);padding:var(--spacing-xl);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-lg)}.form-group{margin-bottom:var(--spacing-lg)}.form-label{display:block;margin-bottom:var(--spacing-sm);font-weight:500;color:var(--text-primary)}.form-input{width:100%;padding:var(--spacing-sm) var(--spacing-md);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-md);background:rgba(255,255,255,.1);color:var(--text-primary);font-size:1rem;transition:all var(--transition-normal)}.form-input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px #f093fb1a}.form-input::placeholder{color:var(--text-muted)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.mb-0{margin-bottom:0}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.mb-5{margin-bottom:var(--spacing-xl)}.mt-0{margin-top:0}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}.mt-5{margin-top:var(--spacing-xl)}.p-0{padding:0}.p-1{padding:var(--spacing-xs)}.p-2{padding:var(--spacing-sm)}.p-3{padding:var(--spacing-md)}.p-4{padding:var(--spacing-lg)}.p-5{padding:var(--spacing-xl)}.d-none{display:none}.d-block{display:block}.d-flex{display:flex}.d-grid{display:grid}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.justify-around{justify-content:space-around}.align-center{align-items:center}.align-start{align-items:flex-start}.align-end{align-items:flex-end}.flex-column{flex-direction:column}.flex-row{flex-direction:row}.flex-wrap{flex-wrap:wrap}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.animate-fade-in{animation:fadeIn .5s ease-in-out}.animate-slide-in-up{animation:slideInUp .5s ease-out}.animate-pulse{animation:pulse 2s infinite}@media (max-width: 768px){.container{padding:0 var(--spacing-sm)}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.btn{padding:var(--spacing-sm) var(--spacing-md);font-size:.9rem}.card{padding:var(--spacing-lg)}}@media (max-width: 480px){html{font-size:14px}.container{padding:0 var(--spacing-xs)}h1{font-size:1.75rem}h2{font-size:1.25rem}h3{font-size:1.125rem}}.theme-dark{--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .8);--text-muted: rgba(255, 255, 255, .6)}.theme-light{--text-primary: #1f2937;--text-secondary: rgba(31, 41, 55, .8);--text-muted: rgba(31, 41, 55, .6);--bg-primary: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);--bg-secondary: rgba(255, 255, 255, .8);--bg-card: rgba(255, 255, 255, .9)}