body {
  margin: 0;
  background-color: #111;
  color: white;
}

.header {
  background-color: #222;
  width: 100%;
  height: 50px;
  display: flex;
  flex-direction: row;
  padding: 0 10px;
  box-sizing: border-box;
  margin-bottom: 1rem;
}
.header .left {
  margin: auto auto auto 0;
  font-size: 20px;
  height: 100%;
}
.header .right {
  margin: auto 0 auto auto;
  height: 100%;
  display: flex;
  flex-direction: row;
}
.header .right a:hover,
.header .right a:focus {
  background-color: #333;
}
.header a {
  height: 100%;
  width: 130px;
  margin: auto 0;
  display: flex;
  text-decoration: none;
  transition: background-color ease-in-out 0.1s;
}
.header a div {
  margin: auto;
  color: white;
}

button {
  background-color: #1c478a;
  border: 0;
  border-radius: 5px;
  color: white;
  cursor: pointer;
}

button:hover,
button:focus {
  background-color: #122d57;
}

.page {
  width: 1000px;
  min-height: 10px;
  margin: 0 auto;
}
.page .horizontal-button-container {
  display: flex;
  flex-direction: row;
}
.page .horizontal-button-container button {
  width: 100px;
  min-height: 30px;
}

.center-modal {
  margin: auto;
  width: 400px;
  background-color: #222;
  display: flex;
  flex-direction: column;
  padding: 0 20px 20px 20px;
  box-sizing: border-box;
  border-radius: 5px;
}
.center-modal .modal-title {
  text-align: center;
  font-size: 26px;
  margin-top: 10px;
}
.center-modal .input-line {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}
.center-modal .input-line div {
  margin-bottom: 5px;
  font-size: 18px;
}
.center-modal .input-line input {
  background-color: #0d0d0d;
  border: 0;
  padding: 5px;
  box-sizing: border-box;
  color: white;
}
.center-modal .horizontal-button-container {
  flex-direction: row-reverse !important;
}
.center-modal .horizontal-button-container a {
  color: white;
  margin: auto auto auto 0;
}
.center-modal .horizontal-button-container button {
  width: 200px !important;
}