:root{--color-bg: #1a1a2e;--color-bg-light: #16213e;--color-bg-card: #0f3460;--color-primary: #e94560;--color-primary-hover: #ff6b6b;--color-secondary: #00d9ff;--color-text: #eaeaea;--color-text-muted: #888;--color-success: #4ade80;--color-warning: #fbbf24;--color-error: #ef4444;--color-card-red: #dc2626;--color-card-black: #1f2937;--color-card-back: #1e40af;--color-card-bg: #f8f8f8;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-card: 6px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .5);--transition-fast: .15s ease;--transition-normal: .25s ease}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;font-size:16px;line-height:1.5;background:var(--color-bg);color:var(--color-text)}a{color:var(--color-secondary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary)}button{cursor:pointer;font-family:inherit}input{font-family:inherit;font-size:inherit}.hidden{display:none!important}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);font-size:1rem;font-weight:600;border:none;border-radius:var(--radius-md);transition:all var(--transition-fast);text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);transform:translateY(-1px)}.btn-secondary{background:var(--color-bg-card);color:var(--color-text);border:1px solid var(--color-text-muted)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-light);border-color:var(--color-text)}.home-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:var(--spacing-xl)}.home-header{text-align:center;margin-bottom:var(--spacing-xl)}.home-header h1{font-size:2.5rem;margin:0 0 var(--spacing-sm);color:var(--color-primary)}.home-header .subtitle{font-size:1.1rem;color:var(--color-text-muted);margin:0}.home-main{display:flex;flex-direction:column;gap:var(--spacing-lg);width:100%;max-width:400px}.action-card{background:var(--color-bg-light);padding:var(--spacing-lg);border-radius:var(--radius-lg);text-align:center}.action-card h2{margin:0 0 var(--spacing-sm);font-size:1.25rem}.action-card p{margin:0 0 var(--spacing-md);color:var(--color-text-muted);font-size:.9rem}.action-card form{display:flex;flex-direction:column;gap:var(--spacing-sm)}.action-card input{padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--color-text-muted);border-radius:var(--radius-md);background:var(--color-bg);color:var(--color-text);text-align:center;font-size:1.25rem;letter-spacing:.1em;text-transform:uppercase}.action-card input:focus{outline:none;border-color:var(--color-secondary)}.action-card .btn{width:100%}.home-footer{margin-top:auto;padding-top:var(--spacing-xl)}.toggle-label{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);cursor:pointer;padding:var(--spacing-sm) 0}.toggle-label input[type=checkbox]{position:relative;width:44px;height:24px;-moz-appearance:none;appearance:none;-webkit-appearance:none;background:var(--color-bg);border:2px solid var(--color-text-muted);border-radius:12px;cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.toggle-label input[type=checkbox]:before{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;background:var(--color-text-muted);border-radius:50%;transition:all var(--transition-fast)}.toggle-label input[type=checkbox]:checked{background:var(--color-primary);border-color:var(--color-primary)}.toggle-label input[type=checkbox]:checked:before{left:22px;background:#fff}.toggle-text{font-size:.9rem;color:var(--color-text-muted)}.lobby-card{text-align:left}.lobby-card h2,.lobby-card p{text-align:center}.public-rooms{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-md);max-height:300px;overflow-y:auto}.room-item{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-sm) var(--spacing-md);background:var(--color-bg);border-radius:var(--radius-md);border:1px solid var(--color-bg-card);transition:border-color var(--transition-fast)}.room-item:hover{border-color:var(--color-secondary)}.room-info{display:flex;flex-direction:column;gap:2px}.room-host{font-weight:500;color:var(--color-text)}.room-players{font-size:.8rem;color:var(--color-text-muted)}.btn-small{padding:var(--spacing-xs) var(--spacing-sm);font-size:.85rem}.btn-join{background:var(--color-secondary);color:var(--color-bg);font-weight:600}.btn-join:hover:not(:disabled){background:var(--color-primary);color:#fff}.lobby-card>.btn-small{width:100%}.loading-rooms,.no-rooms,.error-rooms{text-align:center;padding:var(--spacing-lg);color:var(--color-text-muted);font-size:.9rem}.error-rooms{color:var(--color-error)}#host-name-input{text-transform:none;letter-spacing:normal;font-size:1rem}.rules-container{max-width:700px;margin:0 auto;padding:var(--spacing-xl)}.rules-header{margin-bottom:var(--spacing-xl)}.rules-header .back-link{display:inline-block;margin-bottom:var(--spacing-md);font-size:.9rem}.rules-header h1{margin:0;font-size:2rem;color:var(--color-primary)}.rules-content section{margin-bottom:var(--spacing-xl)}.rules-content h2{font-size:1.25rem;margin:0 0 var(--spacing-sm);color:var(--color-secondary)}.rules-content p,.rules-content ul,.rules-content ol{margin:0 0 var(--spacing-sm);color:var(--color-text-muted)}.rules-content li{margin-bottom:var(--spacing-xs)}.rules-content strong{color:var(--color-text)}.rules-footer{text-align:center;padding-top:var(--spacing-xl);border-top:1px solid var(--color-bg-light)}.spinner{width:40px;height:40px;border:3px solid var(--color-bg-light);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 480px){.home-header h1{font-size:2rem}.home-container{padding:var(--spacing-md)}}.auth-container{margin-top:var(--spacing-md)}.auth-state{display:flex;align-items:center;justify-content:center;gap:var(--spacing-md)}.user-info{display:flex;align-items:center;gap:var(--spacing-sm);background:var(--color-bg-light);padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-md)}.tier-icon{font-size:1.2rem}.rating-value{font-weight:600;color:var(--color-secondary)}.user-name{color:var(--color-text)}.btn-auth{background:var(--color-bg-card);color:var(--color-text);border:1px solid var(--color-text-muted);padding:var(--spacing-xs) var(--spacing-md);font-size:.9rem}.btn-auth:hover{background:var(--color-bg-light);border-color:var(--color-secondary)}.auth-modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center}.auth-modal.hidden{display:none}.auth-modal-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000b3}.auth-modal-content{position:relative;background:var(--color-bg-light);padding:var(--spacing-xl);border-radius:var(--radius-lg);width:100%;max-width:400px;margin:var(--spacing-md)}.auth-modal-close{position:absolute;top:var(--spacing-sm);right:var(--spacing-sm);background:none;border:none;color:var(--color-text-muted);font-size:1.5rem;line-height:1;padding:var(--spacing-xs);cursor:pointer}.auth-modal-close:hover{color:var(--color-text)}.auth-modal-content h2{margin:0 0 var(--spacing-lg);text-align:center;color:var(--color-primary)}.auth-form{display:flex;flex-direction:column;gap:var(--spacing-md)}.form-group{display:flex;flex-direction:column;gap:var(--spacing-xs)}.form-group label{font-size:.9rem;color:var(--color-text-muted)}.form-group input{padding:var(--spacing-sm) var(--spacing-md);background:var(--color-bg);border:1px solid var(--color-text-muted);border-radius:var(--radius-md);color:var(--color-text);font-size:1rem}.form-group input:focus{outline:none;border-color:var(--color-secondary)}.btn-full{width:100%}.btn-google{background:#fff;color:#333;border:1px solid #ddd;display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm)}.btn-google:hover{background:#f5f5f5}.btn-google svg{flex-shrink:0}.auth-divider{display:flex;align-items:center;gap:var(--spacing-md);color:var(--color-text-muted);font-size:.9rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--color-text-muted);opacity:.3}.auth-switch{text-align:center;font-size:.9rem;color:var(--color-text-muted);margin:0}.auth-switch a{color:var(--color-secondary)}.auth-error{background:#ef44441a;border:1px solid var(--color-error);color:var(--color-error);padding:var(--spacing-sm);border-radius:var(--radius-md);font-size:.9rem;text-align:center}.auth-success{background:#4ade801a;border:1px solid var(--color-success);color:var(--color-success);padding:var(--spacing-sm);border-radius:var(--radius-md);font-size:.9rem;text-align:center}.tier-bronze{color:#cd7f32}.tier-silver{color:silver}.tier-gold{color:gold}.tier-platinum{color:#e5e4e2}.tier-diamond{color:#b9f2ff}.tier-master{color:#9932cc}.tier-grandmaster{color:#ff4500}.rating-badge{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:2px 6px;border-radius:var(--radius-sm);font-size:.8rem;font-weight:600;background:var(--color-bg)}.guest-badge{padding:2px 6px;border-radius:var(--radius-sm);font-size:.75rem;background:var(--color-bg);color:var(--color-text-muted)}