styles.css

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

body{
    background-image: linear-gradient(120deg,#1f4037,#99f2c8);
    color: #fff;
    font-family: 'Poppins',sans-serif;
    min-height: 100vh;
  
}

header{
    font-size: 1.5rem;
    display: flex;
    justify-content: space-around;
    padding: 2rem 0rem;
}
header i{
    font-size: 2rem;
    transition: all 0.3s ease;
}
form{
    min-height: 20vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

form input,form button{
    padding: 0.5rem;
    font-size: 2rem;
    border: none;
    background-color: white;
}

form button{
    color: #c9755e;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

form button:hover{
    background: #c9755e;
    color: #fff;
}

.todo-container{
    display: flex;
    justify-content: center;
    align-items: center;
}

.todo-list{
    min-width: 30%;
    list-style: none;
}

.todo{
    margin: 0.5rem;
    background: white;
    color: black;
    font-size: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.5s ease;
}

.todo li{
    flex: 1;
   width: 50vh;
}

.complete-btn,.trash-btn{
    background: #ff6f47;
    color: #fff;
    border: none;
    padding: 1rem;
    cursor: pointer;
    font-size: 1rem;
}

.complete-btn{
    background: green;
}
.todo-item{
    padding: 0rem 0.5rem;
}

.fa-check,.fa-trash{
    pointer-events: none;
}

.completed{
    text-decoration: line-through;
    opacity: 0.5;
}

.fall{
    transform: translateY(8rem) rotateZ(20deg);
    opacity: 0;
}

.todo-input{
    width: 50%;
    border: none;
    outline: none;
}