.nf-wrapper{min-height:100vh;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;background:#f8fafc;overflow:hidden}.nf-background{z-index:0}.nf-background,.nf-grid{position:absolute;top:0;left:0;right:0;bottom:0}.nf-grid{background-image:linear-gradient(rgba(148,163,184,.03) 1px,transparent 0),linear-gradient(90deg,rgba(148,163,184,.03) 1px,transparent 0);background-size:40px 40px;animation:nf-grid-move 20s linear infinite}@keyframes nf-grid-move{0%{transform:translate(0)}to{transform:translate(40px,40px)}}.nf-shapes{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none}.nf-shape{position:absolute;border-radius:50%;opacity:.1;filter:blur(60px)}.nf-shape-1{width:400px;height:400px;background:#10b981;top:-200px;left:-200px;animation:nf-float-1 15s ease-in-out infinite}.nf-shape-2{width:300px;height:300px;background:#3b82f6;bottom:-150px;right:-150px;animation:nf-float-2 20s ease-in-out infinite}.nf-shape-3{width:250px;height:250px;background:#8b5cf6;top:50%;right:10%;animation:nf-float-3 18s ease-in-out infinite}@keyframes nf-float-1{0%,to{transform:translate(0) scale(1)}50%{transform:translate(100px,100px) scale(1.2)}}@keyframes nf-float-2{0%,to{transform:translate(0) scale(1)}50%{transform:translate(-80px,-80px) scale(1.1)}}@keyframes nf-float-3{0%,to{transform:translate(0) scale(1)}50%{transform:translate(-60px,60px) scale(1.15)}}.nf-container{position:relative;z-index:1;width:100%;max-width:100%;opacity:0;transform:translateY(30px);transition:opacity .6s ease-out,transform .6s ease-out;flex:1;display:flex;align-items:center;justify-content:center;padding:0 40px}.nf-container.nf-visible{opacity:1;transform:translateY(0)}.nf-content{width:100%;text-align:center}.nf-header{margin-bottom:48px}.nf-error-number{display:flex;align-items:center;justify-content:center;gap:16px;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.nf-digit{font-size:140px;font-weight:900;line-height:1;letter-spacing:-.05em;color:#000000;animation:nf-digit-pulse 2s ease-in-out infinite}.nf-digit-1{animation-delay:0s}.nf-digit-2{animation-delay:1s}@keyframes nf-digit-pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.9}}.nf-zero-wrapper{width:auto;height:auto;position:relative;display:flex;align-items:center;justify-content:center;margin:0 8px;min-width:140px}.nf-zero{font-size:140px;font-weight:900;line-height:1;letter-spacing:-.05em;color:#000000;animation:nf-zero-pulse 2s ease-in-out infinite}@keyframes nf-zero-pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.9}}.nf-body{text-align:center;margin-bottom:40px}.nf-title{font-size:32px;font-weight:800;color:#0f172a;margin-bottom:16px;letter-spacing:-.02em;line-height:1.3}.nf-message{font-size:17px;color:#64748b;line-height:1.6;max-width:480px;margin:0 auto}.nf-footer-button{text-align:center}.nf-button{display:inline-flex;align-items:center;gap:10px;padding:16px 32px;background:#000000;color:white;border-radius:12px;font-size:16px;font-weight:600;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 12px rgba(0,0,0,.2),0 0 0 1px rgba(0,0,0,.1);position:relative;overflow:hidden}.nf-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .6s}.nf-button:hover:before{left:100%}.nf-button:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.3),0 0 0 1px rgba(0,0,0,.15);background:#1a1a1a}.nf-button:active{transform:translateY(0)}.nf-button-icon{width:20px;height:20px;flex-shrink:0}.nf-button span,.nf-page-footer{position:relative;z-index:1}.nf-page-footer{width:100%;max-width:1200px;padding:24px;display:flex;justify-content:space-between;align-items:center;margin:auto auto 0}.nf-footer-left{flex:1}.nf-brand{font-size:24px;font-weight:900;color:#0f172a;letter-spacing:-.02em;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.nf-footer-right{flex:1;text-align:right}.nf-copyright{font-size:14px;color:#64748b;font-weight:500;letter-spacing:.02em}@media (max-width:768px){.nf-wrapper{padding:16px}.nf-error-number{gap:12px}.nf-digit{font-size:100px}.nf-zero-wrapper{width:auto;min-width:100px;margin:0 4px}.nf-zero{font-size:100px}.nf-title{font-size:28px}.nf-message{font-size:16px}.nf-button{padding:14px 28px;font-size:15px}.nf-page-footer{flex-direction:column;gap:12px}.nf-footer-right,.nf-page-footer{text-align:center}.nf-brand{font-size:20px}.nf-copyright{font-size:13px}}@media (max-width:480px){.nf-error-number{gap:8px}.nf-digit{font-size:80px}.nf-zero-wrapper{width:auto;min-width:80px}.nf-zero{font-size:80px}.nf-title{font-size:24px}.nf-message{font-size:15px}.nf-brand{font-size:18px}.nf-copyright{font-size:12px}}