:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #16161f;--bg-card-hover: #1c1c28;--accent-primary: #6366f1;--accent-primary-light: #818cf8;--accent-secondary: #22d3ee;--accent-success: #10b981;--accent-warning: #f59e0b;--accent-danger: #ef4444;--gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);--gradient-danger: linear-gradient(135deg, #ef4444 0%, #f87171 100%);--gradient-gold: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--border-color: rgba(255, 255, 255, .08);--border-color-light: rgba(255, 255, 255, .12);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 20px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 40px rgba(0, 0, 0, .5);--shadow-glow: 0 0 40px rgba(99, 102, 241, .3);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .375rem;--radius-md: .75rem;--radius-lg: 1rem;--radius-xl: 1.5rem;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 20% 20%,rgba(99,102,241,.15) 0%,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(139,92,246,.1) 0%,transparent 50%),radial-gradient(ellipse at 50% 50%,rgba(34,211,238,.05) 0%,transparent 70%);pointer-events:none;z-index:-1}.app{min-height:100vh;display:flex;flex-direction:column}.header{position:sticky;top:0;z-index:100;background:#0a0a0fcc;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);padding:var(--spacing-md) 0}.header-content{max-width:1400px;margin:0 auto;padding:0 var(--spacing-xl);display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:var(--spacing-sm)}.logo-icon{width:32px;height:32px;color:var(--accent-primary)}.logo h1{font-size:1.5rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.header-info{display:flex;align-items:center;gap:var(--spacing-lg)}.connection-status{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-xs) var(--spacing-md);background:#ffffff0d;border-radius:var(--radius-full);font-size:.875rem;font-weight:500}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-danger);animation:pulse 2s infinite}.connection-status.connected .status-dot{background:var(--accent-success);box-shadow:0 0 10px var(--accent-success)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.user-info{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);font-size:.875rem;font-weight:500}.user-icon{width:20px;height:20px;color:var(--accent-primary)}.main{flex:1;padding:var(--spacing-2xl) 0}.container{max-width:1400px;margin:0 auto;padding:0 var(--spacing-xl)}.hero{text-align:center;margin-bottom:var(--spacing-2xl)}.hero h2{font-size:2.5rem;font-weight:800;margin-bottom:var(--spacing-sm);background:linear-gradient(135deg,var(--text-primary) 0%,var(--text-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.03em}.hero p{color:var(--text-secondary);font-size:1.125rem}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);gap:var(--spacing-md)}.loading-state p{color:var(--text-secondary);font-size:1rem}.items-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:var(--spacing-xl)}.item-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);overflow:hidden;transition:all var(--transition-normal);position:relative}.item-card:hover{transform:translateY(-4px);border-color:var(--border-color-light);box-shadow:var(--shadow-lg)}.item-card.winning{border-color:var(--accent-success);box-shadow:0 0 30px #10b98133}.item-card.expired{opacity:.7}.item-card.expired:hover{transform:none}.item-card.flash{animation:flashGreen .6s ease-out}@keyframes flashGreen{0%{box-shadow:0 0 #10b981b3;border-color:var(--accent-success)}50%{box-shadow:0 0 40px 10px #10b98166}to{box-shadow:var(--shadow-md);border-color:var(--border-color)}}.item-image-container{position:relative;aspect-ratio:16 / 10;overflow:hidden;background:var(--bg-secondary)}.item-image{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}.item-card:hover .item-image{transform:scale(1.05)}.status-badge{position:absolute;top:var(--spacing-md);right:var(--spacing-md);display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.winning-badge{background:var(--gradient-success);color:#fff;box-shadow:0 4px 15px #10b98166}.winning-badge svg{width:14px;height:14px}.ended-badge{background:#000000b3;color:var(--text-secondary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.outbid-alert{position:absolute;bottom:var(--spacing-md);left:var(--spacing-md);right:var(--spacing-md);display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--gradient-danger);border-radius:var(--radius-md);font-size:.875rem;font-weight:600;color:#fff;animation:shake .5s ease-out,fadeIn .2s ease-out}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-8px)}40%,80%{transform:translate(8px)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.item-content{padding:var(--spacing-lg)}.item-title{font-size:1.125rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-xs);line-height:1.3}.item-description{font-size:.875rem;color:var(--text-muted);margin-bottom:var(--spacing-md);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.price-section{margin-bottom:var(--spacing-md)}.current-bid{display:flex;align-items:baseline;gap:var(--spacing-sm);margin-bottom:var(--spacing-xs)}.current-bid .label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.current-bid .amount{font-size:1.75rem;font-weight:800;color:var(--accent-primary-light);letter-spacing:-.02em}.current-bid .amount.pulse{animation:pricePulse .6s ease-out}@keyframes pricePulse{0%{transform:scale(1);color:var(--accent-success)}50%{transform:scale(1.15)}to{transform:scale(1);color:var(--accent-primary-light)}}.bid-info{display:flex;gap:var(--spacing-sm);font-size:.8rem;color:var(--text-muted)}.highest-bidder{color:var(--text-secondary)}.timer-section{margin-bottom:var(--spacing-md)}.countdown-timer{display:inline-flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:#ffffff0d;border:1px solid var(--border-color);border-radius:var(--radius-md);font-weight:600}.timer-icon{width:18px;height:18px;color:var(--text-secondary)}.time-display{font-size:1.125rem;font-variant-numeric:tabular-nums;color:var(--text-primary)}.countdown-timer.urgent{border-color:var(--accent-warning);background:#f59e0b1a}.countdown-timer.urgent .time-display{color:var(--accent-warning)}.countdown-timer.critical{border-color:var(--accent-danger);background:#ef444426;animation:urgentPulse 1s infinite}.countdown-timer.critical .time-display{color:var(--accent-danger)}@keyframes urgentPulse{0%,to{box-shadow:0 0 #ef444466}50%{box-shadow:0 0 20px 5px #ef444433}}.countdown-timer.expired{background:#64748b33;border-color:var(--text-muted)}.expired-text{color:var(--text-muted);font-size:.875rem;text-transform:uppercase;letter-spacing:.1em}.bid-button{width:100%;display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);background:var(--gradient-primary);border:none;border-radius:var(--radius-lg);font-family:inherit;font-size:1rem;font-weight:600;color:#fff;cursor:pointer;transition:all var(--transition-fast);position:relative;overflow:hidden}.bid-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s ease}.bid-button:hover:before{left:100%}.bid-button:hover{transform:translateY(-2px);box-shadow:0 8px 25px #6366f166}.bid-button:active{transform:translateY(0)}.bid-button.disabled{background:var(--bg-secondary);color:var(--text-muted);cursor:not-allowed;box-shadow:none}.bid-button.disabled:hover{transform:none}.bid-button.disabled:before{display:none}.bid-button .bid-text{font-weight:700}.bid-button .bid-amount{background:#fff3;padding:2px 8px;border-radius:var(--radius-sm);font-weight:700}.bid-button .next-price{font-size:.875rem;opacity:.8}.loading-spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.loading-spinner.large{width:40px;height:40px;border-width:3px;border-color:var(--border-color);border-top-color:var(--accent-primary)}@keyframes spin{to{transform:rotate(360deg)}}.footer{padding:var(--spacing-xl) 0;text-align:center;color:var(--text-muted);font-size:.875rem;border-top:1px solid var(--border-color)}@media (max-width: 768px){.header-content{padding:0 var(--spacing-md)}.header-info{gap:var(--spacing-sm)}.user-info span{display:none}.container{padding:0 var(--spacing-md)}.hero h2{font-size:1.75rem}.hero p{font-size:1rem}.items-grid{grid-template-columns:1fr;gap:var(--spacing-md)}.current-bid .amount{font-size:1.5rem}}@media (max-width: 480px){.logo h1{font-size:1.25rem}.connection-status span:not(.status-dot){display:none}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-color-light);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{background:#6366f14d;color:var(--text-primary)}.header-button{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.header-button:hover{background:var(--bg-card-hover);border-color:var(--border-color-light);transform:translateY(-1px)}.header-button svg{color:var(--accent-primary)}.header-button-text{display:inline}.kbd{padding:2px 6px;background:#ffffff1a;border-radius:var(--radius-sm);font-size:.7rem;font-weight:600;font-family:monospace}.hero-shortcuts{display:flex;gap:var(--spacing-md);justify-content:center;margin-top:var(--spacing-md)}.shortcut-hint{display:flex;align-items:center;gap:var(--spacing-xs);color:var(--text-muted);font-size:.875rem}.shortcut-hint kbd{padding:4px 8px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);font-weight:700}.toast-container{position:fixed;top:var(--spacing-xl);right:var(--spacing-xl);z-index:10000;display:flex;flex-direction:column;gap:var(--spacing-sm);pointer-events:none}.toast{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-lg);background:var(--bg-card);border:1px solid var(--border-color);border-left:4px solid;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);min-width:300px;pointer-events:all;cursor:pointer;animation:toastSlideIn .3s ease-out}@ keyframes toastSlideIn{from{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.toast-success{border-left-color:var(--accent-success)}.toast-error{border-left-color:var(--accent-danger)}.toast-warning{border-left-color:var(--accent-warning)}.toast-info{border-left-color:var(--accent-primary)}.toast-icon{width:24px;height:24px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700}.toast-success .toast-icon{color:var(--accent-success)}.toast-error .toast-icon{color:var(--accent-danger)}.toast-warning .toast-icon{color:var(--accent-warning)}.toast-info .toast-icon{color:var(--accent-primary)}.toast-message{flex:1;font-size:.875rem;font-weight:500}.toast-close{background:none;border:none;color:var(--text-muted);font-size:1.5rem;cursor:pointer;padding:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);transition:all var(--transition-fast)}.toast-close:hover{background:#ffffff1a;color:var(--text-primary)}.activity-feed-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;animation:fadeIn .2s ease-out}.activity-feed{width:90%;max-width:600px;max-height:80vh;background:var(--bg-card);border:1px solid var(--border-color-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;animation:slideUpIn .3s ease-out}@keyframes slideUpIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.activity-feed-header{padding:var(--spacing-lg);border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.activity-feed-header h3{font-size:1.25rem;font-weight:700}.activity-feed-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:var(--spacing-xs);border-radius:var(--radius-sm);transition:all var(--transition-fast);width:32px;height:32px;display:flex;align-items:center;justify-content:center}.activity-feed-close:hover{background:#ffffff1a;color:var(--text-primary)}.activity-feed-content{flex:1;overflow-y:auto;padding:var(--spacing-md)}.activity-feed-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-2xl);text-align:center;color:var(--text-muted)}.activity-feed-empty svg{width:64px;height:64px;margin-bottom:var(--spacing-md);opacity:.5}.activity-feed-empty .sub{font-size:.875rem;margin-top:var(--spacing-xs)}.activity-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.activity-item{display:flex;gap:var(--spacing-md);padding:var(--spacing-md);background:var(--bg-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast)}.activity-item:hover{background:var(--bg-card-hover)}.activity-icon{font-size:1.5rem}.activity-details{flex:1;min-width:0}.activity-main{display:flex;align-items:baseline;gap:var(--spacing-xs);margin-bottom:var(--spacing-xs);flex-wrap:wrap}.activity-bidder{font-weight:600;color:var(--text-primary)}.activity-action{color:var(--text-secondary)}.activity-amount{font-weight:700;color:var(--accent-primary-light)}.activity-sub{display:flex;justify-content:space-between;align-items:center;font-size:.875rem}.activity-item-title{color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.activity-time{color:var(--text-muted);flex-shrink:0;margin-left:var(--spacing-sm)}.stats-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;animation:fadeIn .2s ease-out}.stats-dashboard{width:90%;max-width:700px;max-height:80vh;background:var(--bg-card);border:1px solid var(--border-color-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:var(--spacing-xl);animation:slideUpIn .3s ease-out;overflow-y:auto}.stats-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xl)}.stats-header h3{font-size:1.5rem;font-weight:700}.stats-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:var(--spacing-xs);border-radius:var(--radius-sm);transition:all var(--transition-fast);width:32px;height:32px;display:flex;align-items:center;justify-content:center}.stats-close:hover{background:#ffffff1a;color:var(--text-primary)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--spacing-md);margin-bottom:var(--spacing-xl)}.stat-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);text-align:center;transition:all var(--transition-normal)}.stat-card:hover{transform:translateY(-2px);border-color:var(--border-color-light);box-shadow:var(--shadow-md)}.stat-icon{font-size:2rem;margin-bottom:var(--spacing-sm)}.stat-value{font-size:1.75rem;font-weight:800;color:var(--accent-primary-light);margin-bottom:var(--spacing-xs);letter-spacing:-.02em}.stat-label{font-size:.875rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.winning-items{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg)}.winning-items h4{font-size:1.125rem;font-weight:600;margin-bottom:var(--spacing-md);color:var(--accent-success)}.winning-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.winning-item{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm);background:var(--bg-primary);border-radius:var(--radius-md)}.winning-item-title{font-weight:500;color:var(--text-primary)}.winning-item-price{font-weight:700;color:var(--accent-primary-light)}.no-wins{text-align:center;padding:var(--spacing-2xl);color:var(--text-muted)}.no-wins p{font-size:1.125rem}@media (max-width: 768px){.header-button-text,.hero-shortcuts{display:none}.toast-container{top:var(--spacing-md);right:var(--spacing-md);left:var(--spacing-md)}.toast{min-width:auto}.stats-grid{grid-template-columns:repeat(2,1fr)}}.user-profile{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast)}.user-profile:hover{background:var(--bg-card-hover);border-color:var(--border-color-light)}.user-profile .user-icon{width:20px;height:20px;color:var(--accent-primary)}.user-profile .user-name{font-size:.875rem;font-weight:500;color:var(--text-primary)}.user-profile .edit-icon{width:14px;height:14px;color:var(--text-muted);opacity:0;transition:opacity var(--transition-fast)}.user-profile:hover .edit-icon{opacity:1}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:2000;display:flex;align-items:center;justify-content:center;animation:fadeIn .2s ease-out}.username-modal{width:90%;max-width:400px;background:var(--bg-card);border:1px solid var(--border-color-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);animation:slideUpIn .3s ease-out}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-lg);border-bottom:1px solid var(--border-color)}.modal-header h3{font-size:1.25rem;font-weight:700;color:var(--text-primary)}.modal-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:var(--spacing-xs);border-radius:var(--radius-sm);transition:all var(--transition-fast);width:32px;height:32px;display:flex;align-items:center;justify-content:center}.modal-close:hover{background:#ffffff1a;color:var(--text-primary)}.username-form{padding:var(--spacing-lg)}.form-group{margin-bottom:var(--spacing-lg)}.form-group label{display:block;font-size:.875rem;font-weight:600;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.form-group input{width:100%;padding:var(--spacing-md);background:var(--bg-secondary);border:2px solid var(--border-color);border-radius:var(--radius-md);font-family:inherit;font-size:1rem;color:var(--text-primary);transition:all var(--transition-fast)}.form-group input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #6366f133}.form-group input::placeholder{color:var(--text-muted)}.form-error{display:block;margin-top:var(--spacing-sm);font-size:.8rem;color:var(--accent-danger)}.form-hint{display:block;margin-top:var(--spacing-sm);font-size:.75rem;color:var(--text-muted)}.form-actions{display:flex;gap:var(--spacing-md);justify-content:flex-end}.btn-cancel{padding:var(--spacing-sm) var(--spacing-lg);background:transparent;border:1px solid var(--border-color);border-radius:var(--radius-md);font-family:inherit;font-size:.875rem;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.btn-cancel:hover{background:var(--bg-secondary);color:var(--text-primary)}.btn-save{padding:var(--spacing-sm) var(--spacing-lg);background:var(--gradient-primary);border:none;border-radius:var(--radius-md);font-family:inherit;font-size:.875rem;font-weight:600;color:#fff;cursor:pointer;transition:all var(--transition-fast)}.btn-save:hover{transform:translateY(-1px);box-shadow:0 4px 15px #6366f166}@media (max-width: 768px){.user-profile .user-name,.user-profile .edit-icon{display:none}}