:root {
  --mainColor: #eaeaea;
  --secondaryColor: #fff;

  --borderColor: #c1c1c1;
  --themeDotBorder: #24292e;

  --mainText: black;
  --secondaryText: #4b5156;

  --previewBackground: rgb(251, 249, 243, 0.8);
  --previewShadow: #f0ead6;

  --buttonColor: black;
}

body * {
  transition: 0.3s ease-in-out;
}

.greeting-container h1,
.greeting-container h2,
.greeting-container h3,
.greeting-container h4,
.greeting-container h5,
.greeting-container h6,
.greeting-container strong {
  color: var(--mainText);
  font-family: "Russo One", sans-serif;
  font-weight: 500;
  margin: 0;
}

.greeting-container p,
.greeting-container i,
.greeting-container li,
.greeting-container span,
.greeting-container label,
.greeting-container input,
.greeting-container textarea {
  color: var(--secondaryText);
  font-family: "Ubuntu Mono", monospace;
}

.greeting-container a {
  text-decoration: none;
  color: #17a2b8;
}

.greeting-container ul {
  list-style: none;
}

.greeting-container h1 {
  font-size: 56px;
}

.greeting-container h2 {
  font-size: 36px;
}

.greeting-container h3 {
  font-size: 28px;
}

.greeting-container h4 {
  font-size: 24px;
}

.greeting-container h5 {
  font-size: 20px;
}

.greeting-container h6 {
  font-size: 16px;
}

.greeting-container .intro-wrapper {
  background-color: var(--secondaryColor);
  border: 1px solid var(--borderColor);
  border-radius: 5px 5px 0 0;

  -webkit-box-shadow: -1px 1px 3px -1px rgba(0, 0, 0, 0.75);
  -moz-box-shadow: -1px 1px 3px -1px rgba(0, 0, 0, 0.75);
  box-shadow: -1px 1px 3px -1px rgba(0, 0, 0, 0.75);

  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-areas:
    "nav-wrapper nav-wrapper"
    "left-column right-column";
}

.greeting-container .nav-wrapper {
  grid-area: nav-wrapper;
  border-bottom: 1px solid var(--borderColor);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--mainColor);
  max-height: 50px;
}

.greeting-container #navigation {
  margin: 0;
  padding: 10px;
}

.greeting-container #navigation li {
  display: inline-block;
  margin-right: 5px;
  margin-left: 5px;
}

.greeting-container .left-column {
  grid-area: left-column;
}

.greeting-container #owner-avatar {
  display: block;
  margin: 0 auto;
  height: 95%;
  width: 95%;
  object-fit: cover;
  border: 2px solid var(--borderColor);
}

.greeting-container #theme-options-wrapper {
  display: flex;
  justify-content: center;
}

.greeting-container .theme-dot {
  height: 30px;
  width: 30px;
  background-color: black;
  border: 2px solid var(--themeDotBorder);
  border-radius: 50%;
  margin: 5px;

  -webkit-box-shadow: -1px 1px 3px -1px rgba(0, 0, 0, 0.75);
  -moz-box-shadow: -1px 1px 3px -1px rgba(0, 0, 0, 0.75);
  box-shadow: -1px 1px 3px -1px rgba(0, 0, 0, 0.75);

  cursor: pointer;
}

.greeting-container .theme-dot:hover {
  border-width: 5px;
}

.greeting-container #light-mode {
  background-color: #fff;
}

.greeting-container #blue-mode {
  background-color: #15202b;
}

.greeting-container #green-mode {
  background-color: #2c4e0c;
}

.greeting-container #red-mode {
  background-color: #5f170d;
}

.greeting-container .right-column {
  grid-area: right-column;
  display: grid;
  padding: 5px;
  overflow: hidden;
}

.greeting-container .right-column p {
  max-height: 500px;
  max-width: 500px;
  overflow: auto;
}

.greeting-container #join-form {
  display: block;
  margin: 0 auto;
  padding: 15px;
  max-width: 600px;
  border: 1px solid var(--borderColor);
  border-radius: 5px;
  background-color: var(--mainColor);
  margin-bottom: 50px;
}

.greeting-container #join-form label {
  line-height: 2.7em;
}

.greeting-container #join-form textarea {
  min-height: 100px;
  font-size: 14px;
}

.greeting-container #send-button {
  color: #fff;
  width: 100%;
  margin-top: 10px;
  padding-top: 10px;
  padding-bottom: 10px;
  background-color: var(--buttonColor);
  border: none;
}

@media screen and (max-width: 800px) {
  .intro-wrapper {
    grid-template-columns: 1fr;
    grid-template-areas:
      "nav-wrapper"
      "left-column"
      "right-column";
  }
}