* {
  margin: 0;
  padding: 0;
}

input {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: none;
  outline: none;
}

body {
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  min-height: 100vh;
  color: white;
  text-shadow: 1px 1px 0px black;
}

.layout {
  background-color: rgba(0, 0, 0, 0.3);
  min-height: 100vh;
}

.white {
  background-image: url('https://source.unsplash.com/random/1920x1080?white');
}

.black {
  background-image: url('https://source.unsplash.com/random/1920x1080?black');
}

.blue {
  background-image: url('https://source.unsplash.com/random/1910x1080?blue');
}

.red {
  background-image: url('https://source.unsplash.com/random/1910x1080?red');
}

.green {
  background-image: url('https://source.unsplash.com/random/1920x1080?green');
}

#theme {
  position: absolute;
  bottom: 10px;
  right: 0;
  display: flex;
}

.theme-btn {
  margin-right: 10px;
  font-size: 14px;
  cursor: pointer;
  background-color: white;
  color: black;
  text-shadow: none;
  padding: 5px 10px;
  border-radius: 20px;
  transition: background-color 0.5s ease, color 0.5s ease;
}

.selected-theme {
  background-color: rgb(59, 59, 59);
  color: rgb(233, 233, 233);
  transition: background-color 0.5s ease, color 0.5s ease;
}

#quote {
  position: absolute;
  bottom: 60px;
  left: 0;
  right: 0;
  display: grid;
  row-gap: 10px;
  justify-items: center;
}

#quote :last-child {
  font-size: 14px;
}

.layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

#clock {
  margin-bottom: 20px;
  font-size: 120px;
  letter-spacing: 20px;
  text-shadow: 3px 3px 3px black;
  font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
}

#clock .clock-day {
  font-size: 24px;
  letter-spacing: 3px;
  text-shadow: 1px 1px 0px black;
  text-align: center;
}

.login-form {
  display: grid;
  grid-template-columns: auto auto;
  column-gap: 20px;
}

.login-form input {
  box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
}

.login-form-name {
  padding: 10px 40px;
  text-align: center;
  border-radius: 10px;
}

.login-form-submit {
  padding: 10px 20px;
  background-color: rgb(252, 252, 252);
  border-radius: 10px;
  cursor: pointer;
}

.hidden {
  display: none;
}

#greeting {
  font-size: 24px;
}

#logout {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 5px 10px;
  font-size: 12px;
  background-color: white;
  color: black;
  text-shadow: none;
  border-radius: 5px;
  cursor: pointer;
}