:root{--color-primary:#e74c3c;--color-secondary:#34495e;--color-bg:#f8f8f8}.error-page{background-color:var(--color-bg);font-family:Arial,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh;margin:0;padding:20px;text-align:center}.error-container{max-width:600px;padding:40px;background:#fff;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.1)}.error-code{font-size:8rem;font-weight:900;color:var(--color-primary);margin:0 0 10px;text-shadow:4px 4px 0 rgba(0,0,0,.05)}.error-message{font-size:1.8rem;font-weight:700;color:var(--color-secondary);margin-bottom:15px}.error-description{font-size:1.1rem;color:#7f8c8d;margin-bottom:30px;line-height:1.6}.error-actions{display:flex;justify-content:center;gap:15px}.btn{padding:12px 25px;border-radius:8px;text-decoration:none;font-weight:600;transition:.3s;border:2px solid transparent}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:darken(var(--color-primary),10%)}.btn-secondary{background:0 0;color:var(--color-secondary);border-color:var(--color-secondary)}.btn-secondary:hover{background:var(--color-secondary);color:#fff}.btn i{margin-right:8px;font-size:1.1em}@media (max-width:500px){.error-code{font-size:6rem}.error-actions{flex-direction:column}.btn{width:100%}}