.notfound-container{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:40px;direction:rtl;text-align:center;position:relative;overflow:hidden}.notfound-container:before{content:"";position:absolute;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 1px,transparent 0);background-size:50px 50px;animation:float 20s linear infinite;z-index:0}@keyframes float{0%{transform:translate(0) rotate(0deg)}to{transform:translate(-100px,-100px) rotate(1turn)}}.notfound-content{position:relative;z-index:2;background:rgba(255,255,255,.95);padding:60px 40px;border-radius:20px;box-shadow:0 20px 60px rgba(0,0,0,.3);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);max-width:500px;width:90%;border:1px solid rgba(255,255,255,.3)}.notfound-title{font-size:8rem;font-weight:900;background:linear-gradient(135deg,#ff6b6b,#ee5a24);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0;letter-spacing:3px;position:relative;animation:bounce 2s infinite alternate}@keyframes bounce{0%{transform:translateY(0)}to{transform:translateY(-20px)}}.notfound-icon{font-size:4rem;color:#ff6b6b;margin-bottom:20px;animation:pulse 2s infinite}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}.notfound-subtitle{font-size:2rem;color:#2d3748;margin:20px 0 15px;font-weight:700;position:relative}.notfound-subtitle:after{content:"";position:absolute;bottom:-10px;right:50%;transform:translateX(50%);width:80px;height:3px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:2px}.notfound-text{color:#4a5568;font-size:1.1rem;max-width:400px;margin:25px auto 35px;line-height:1.8;font-weight:500}.notfound-button{display:inline-flex;align-items:center;gap:10px;padding:15px 35px;font-size:1.1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:50px;text-decoration:none;transition:all .4s ease;position:relative;overflow:hidden;box-shadow:0 10px 30px rgba(102,126,234,.4)}.notfound-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 .5s}.notfound-button:hover{transform:translateY(-5px);box-shadow:0 15px 40px rgba(102,126,234,.6)}.notfound-button:hover:before{left:100%}.notfound-button:active{transform:translateY(-2px)}.floating-element{position:absolute;background:rgba(255,255,255,.1);border-radius:50%;animation:float-element 15s linear infinite;z-index:1}.floating-element:first-child{width:100px;height:100px;top:10%;right:10%;animation-delay:0s}.floating-element:nth-child(2){width:150px;height:150px;bottom:20%;left:5%;animation-delay:-5s}.floating-element:nth-child(3){width:80px;height:80px;top:60%;right:20%;animation-delay:-10s}@keyframes float-element{0%,to{transform:translateY(0) rotate(0deg)}33%{transform:translateY(-30px) rotate(120deg)}66%{transform:translateY(20px) rotate(240deg)}}@media (max-width:768px){.notfound-container{padding:20px}.notfound-content{padding:40px 20px}.notfound-title{font-size:6rem}.notfound-subtitle{font-size:1.7rem}.notfound-text{font-size:1rem;margin:20px auto 25px}.floating-element{display:none}}@media (max-width:480px){.notfound-title{font-size:4.5rem}.notfound-subtitle{font-size:1.4rem}.notfound-button{padding:12px 25px;font-size:1rem}}