body {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  background: #eef3ff;
  margin: 0;
  padding: 0;
  color: #1e2d5a;
  font-size: 16px;
  line-height: 1.6;
}

h1,
h2 {
  text-align: center;
  color: #2b3a67;
  margin-top: 0;
}

h1 {
  margin: 30px 0;
}

.box {
  max-width: 850px;
  margin: 30px auto;
  background: #fff;
  padding: 25px 40px;
  border: 3px solid #495bcc;
  border-radius: 10px;
}

form {
  margin-top: 0;
}

.error {
  color: red;
  font-size: 14px;
  margin-left: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

th {
  background: #dce1ff;
  color: #1e2d5a;
  padding: 10px;
  border: 2px solid #495bcc;
  text-align: left;
}

td {
  border: 1px solid #999;
  padding: 10px 8px;
  word-break: break-word;
}

td[colspan="2"] {
  text-align: center;
}

tr:nth-child(even) {
  background: #f7f8ff;
}

input[type],
textarea {
  background: #f9f9f9;
  border: 1px solid #666;
  border-radius: 4px;
  padding: 6px;
  box-sizing: border-box;
}

input[type="text"],
textarea {
  width: 96%;
}

button {
  background: #495bcc;
  color: #fff;
  border: none;
  padding: 12px 25px;
  margin: 10px;
  font-size: 16px;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: #2f3fab;
}

input[type="range"] {
  width: 70%;
}