body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #e8e8e8;
}

.no-link-style {
  text-decoration: none;
  color: inherit;
}

.home_btn {
  background-color: #5a5a5a;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.home_btn:hover {
  background-color: #3a3a3a;
}

.content {
  max-width: 800px;
  margin: 50px auto;
  padding: 20px;
  background-color: #f5f5f5;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.content h1 {
  color: #2c2c2c;
}

.content h4 {
  color: #6b6b6b;
}

.content table {
  width: 100%;
  margin-top: 20px;
  border-collapse: collapse;
}

.content table th,
.content table td {
  border: 1px solid #d0d0d0;
  text-align: left;
}

.content table th th,
.content table td th {
  background-color: #e0e0e0;
  color: #2c2c2c;
}

.content a {
  display: inline-block;
  padding: 8px 16px;
  margin: 5px;
  border-radius: 20px;
  background-color: #6b6b6b;
  color: #fff;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.content a:hover {
  background-color: #4a4a4a;
}

.content input {
  padding: 10px;
  margin: 5px;
  border: solid 1px #c0c0c0;
  border-radius: 5px;
  background-color: #ffffff;
}

.content input:focus {
  outline: none;
  border-color: #808080;
}

.content #add_btn {
  background-color: #7a7a7a;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.content #add_btn:hover {
  background-color: #5a5a5a;
}