style.css

:root{
    --bg-color: rgb(20, 20, 20);
    --fg-color: rgb(40, 40, 40);
    --accent-color: rgb(255, 20, 40);
    --accent-hover-color: rgb(230, 20, 40);
    --accent-active-color: rgb(200, 20, 40)
}

*{
    font-family: arial;
    color: white;
    box-sizing: border-box;
    transition: all 0.25s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0px);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0px);
    }
    to {
        opacity: 0;
        transform: translateY(-50px);
    }
}

h1, h2, h3, h4, h5, h6{
    font-weight: normal;
}

html, body{
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
}

.list{
    padding: 10px 50px;
    border-radius: 5px;
    animation: 0.5s cubic-bezier(0.215, 0.610, 0.355, 1.000) fadeIn;
}

.list.fadeOut{
    animation: 0.5s cubic-bezier(0.215, 0.610, 0.355, 1.000) fadeOut;
}


#list-menu{
    padding: 10px;
    border-radius: 5px;
    position: sticky;
    top: 0;
    width: 100%;
    height: 60px;
    background-color: var(--fg-color);
    display: flex;
}

#status{
    flex-grow: 1;
    text-align: right;
    vertical-align: middle;
}

button{
    border-radius: 50px;
    padding: 10px;
    border: 0;
    background-color: var(--accent-color);
    cursor: pointer;
}

button:hover{
    background-color: var(--accent-hover-color);
}

button:active{
    background-color: var(--accent-active-color);
}

.item{
    background-color: var(--fg-color);
    padding: 10px;
    border-radius: 10px;
    margin: 10px;
    display: flex;
    animation: 0.5s cubic-bezier(0.215, 0.610, 0.355, 1.000) fadeIn;
}

.item.fadeOut{
    animation: 0.5s cubic-bezier(0.215, 0.610, 0.355, 1.000) fadeOut;
}

.item.completed{
    opacity: 0.5;
}

.item.completed:hover{
    opacity: 0.8;
}

.item.completed input{
    text-decoration: line-through;
}

.task-input{
    flex-grow: 1;
}

.text-input{
    background-color: transparent;
    border: 0;
    border-bottom: 1px solid white;
}

label input[type="checkbox"]{
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

label .checkbox-display{
    display: block;
}

label .checkbox-display::after{
    content: "";
    display: block;
    width: 15px;
    height: 15px;
    border: 1px solid white;
    padding: 5px;
    border-radius: 5px;
}

label input:checked ~ .checkbox-display::after{
    content: "✓";
    /* width: 10px;
    height: 10px;
    border: 1px solid white;
    padding: 5px;
    border-radius: 5px; */
}