.not-found-container{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.not-found-content{text-align:center;background:#fff;border-radius:16px;width:100%;max-width:500px;padding:60px 40px;box-shadow:0 20px 60px #0000004d}.not-found-title{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin:0;font-size:120px;font-weight:700;line-height:1}.not-found-subtitle{color:#2d3748;margin:20px 0 10px;font-size:32px;font-weight:600}.not-found-description{color:#718096;margin:0 0 30px;font-size:16px;line-height:1.6}.btn-home{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:8px;padding:14px 32px;font-size:16px;font-weight:600;text-decoration:none;transition:transform .2s,box-shadow .2s;display:inline-block;box-shadow:0 4px 12px #667eea66}.btn-home:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea99}.btn-home:active{transform:translateY(0)}@media (max-width:768px){.not-found-content{padding:40px 30px}.not-found-title{font-size:80px}.not-found-subtitle{font-size:24px}.not-found-description{font-size:14px}}