.error-page{color:#fff;background:linear-gradient(135deg,#0f172a 0%,#374151 100%);justify-content:center;align-items:center;min-height:100vh;margin:0;padding:0;display:flex}.error-main{text-align:center;max-width:40rem;padding:3rem 1.5rem}.error-title{margin-bottom:1rem;font-size:2.25rem;font-weight:800}.error-desc{opacity:.9;margin-bottom:1.5rem;font-size:1rem}.error-btn{color:#1f2937;cursor:pointer;background:#fff;border:none;border-radius:.5rem;padding:.75rem 1.25rem;font-weight:600;text-decoration:none;display:inline-block;box-shadow:0 6px 18px #00000026}.error-btn:hover{opacity:.95}