body {
  font-family: Arial;
  padding: 20px;
}

h1 {
  text-align: center;
}

form {
  margin-bottom: 20px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

input, button {
  padding: 8px;
  font-size: 14px;
}

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

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

.status-ok {
  color: green;
}
.status-warning {
  color: orange;
}
.status-expired {
  color: red;
}

button.delete {
  background: red;
  color: white;
  border: none;
  cursor: pointer;
}