body {
  font-family: sans-serif;
  background-color: #f5f5f5;
  /* background-image: linear-gradient(to right, #000, #f5f5f5); */
}

header {
  background-color: #000;
  color: #fff;
  padding: 5px;
  text-align: center;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1;  
}

h1 {
  font-size: 32px;
  font-weight: bold;
  text-transform: uppercase;
}

nav {
  display: flex;
  justify-content: center;
  align-items: center;
}

a {
  color: #3a3a3a;
  text-decoration: none;
  padding: 10px;
  margin: 10px;
}

#app {
  max-width: 800px;
  margin: 0 auto;
  padding-top: 130px;
}

form {
  margin-bottom: 20px;
}

input {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-family: sans-serif;
}

input[type="submit"] {
  background-color: #000;
  color: #fff;
  cursor: pointer;
  border-radius: 5px;
  font-family: sans-serif;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: sans-serif;
}

th, td {
  border: 1px solid #ccc;
  padding: 10px;
  text-align: left;
}

@media only screen and (max-width: 760px) {
  table {
    font-size: 12px;
    border-collapse: collapse;
  }

  th, td {
    border: 1px solid #ccc;
    padding: 5px;
    text-align: left;
  }
}