style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;400&display=swap');
@import url("themes.css");

* {
  box-sizing: border-box;
}

body {
  background-color: #f5f5f5;
  color: #151426;
  font-family: 'Poppins', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  height: 100vh;
  margin: 0;
  transition: background 0.2s linear;
}

h3 {
  color: var(--header-text);
  font-size: 5rem;
  text-align: center;
  opacity: 0.6;
  margin-bottom:1rem;
  transition: color 0.2s linear;
}

form {
  max-width: 100%;
  width: 400px;
  display: flex;
  flex-direction: column;
  justify-content: baseline;
}

.quote{
  font-size: 1rem;
  text-align: center;
  opacity: 0.4;
  margin: 1.5em 0em;
}

.input {
  border: none;
  color: #444444;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  border-radius:15px;
  font-size: 2rem;
  padding: 1rem 2rem;
  display: block;
  width: 100%;
  transition: background 0.2s linear;
  text-align: center;
}

.input::placeholder {
  color: #d5d5d5;
}

.input:focus {
  outline-style: solid;
  outline-color: var(--header-text);
}

.todos {
  display: flex;
  flex-direction: column-reverse;
  margin: 0.1rem;
  list-style-type: none;
  transition: background 0.2s linear;
  word-wrap:break-word;
}

ul{
  padding-inline-start: 0px;
}

.todos li {
  background-color: #b5b5b560;
  cursor: pointer;
  font-size: 1.0rem;
  padding: 1rem 2rem;
  border-radius: 15px;
  margin: 0.5rem 0;
  transition: background 0.2s linear;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width:100%;
}
.todos li:hover {
  background-color: var(--hover-color);
}

.todos li.completed {
  color: #b6b6b690;
  background-color: rgba(0, 0, 0, 0.1);
  text-decoration: line-through;
}


small {
  margin-top: 3rem;
  text-align: center;
}

/*calendar*/
.calendar{
  position: fixed;
  top:23px;
  right: 65px;
  font-size: 30px;
}

#cal{
  height: 25px;
  width: 27px;
}

/*Dark mode toggle*/
.lightOrDark {
  color: #444444;
  position: fixed;
  top:20px;
  transform: rotate(-0.1turn);
  right: 20px;
  font-size: 30px;
  transition: transform 0.2s linear;
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;
}

.lightOrDark:hover {
  cursor: pointer;
}

.dark{
  background-color: #2d2d2d;
  color: #e6e6e6;
}
.dark-input {
  background-color: #333333;
  color: #e6e6e6;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.113);
}
.dark-todos {
  background-color: #333333;
  color: #e6e6e6;
}

.greeting {
  color: #707070;
  font-style: italic;
  font: 1rem;
}

@media only screen and (max-width: 600px) {
  h1 {
    font-size: 6rem;
  }
  form {
    width: 90%;
  }
  .input {
    font-size: 1.5rem;
    padding: 0.8rem 1.5rem;
  }
  .todos li {
    font-size: 1.2rem;
    padding: 0.8rem 1.5rem;
  }
}