* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary-bg: #282c34;
  --secondary-bg: #333;
  --primary-heading: #9cdcf0;
  --highlight-color: #555;
  --primary-text: #fff;
  --secondary-text: #b4b4b4;
  --placeholder-brace: #dcb862;
  --placeholder-currency: #d4d4d4;
  --placeholder-navbar--home: #9cdcf0;
  --placeholder-args: #4a9cd6;
  --placeholder-initials: #fff;
}

body {
  color: #b4b4b4;
  -webkit-font-smoothing: antialiased;
  background-color: #282c34;
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
  line-height: 1.6;
}

.grid-container {
  grid-template-areas: "header"
                       "article"
                       "footer";
  display: grid;
}

header {
  grid-area: header;
}

article {
  grid-area: article;
}

footer {
  grid-area: footer;
}

.container {
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin: 0 auto;
  display: flex;
}

h1 {
  font-size: 2rem;
}

h1, h2, h3, h4, h5, h6 {
  margin-bottom: 1rem;
  font-weight: 600;
}

p {
  margin-bottom: 1rem;
}

ul {
  padding: 0;
  list-style: none;
}

.logo {
  width: 100px;
  height: auto;
  margin: 10px;
}