:root{
    --background : #101114;
    --primary-color: #1C1D20 ;
    --secondary-color: #4A4D57;
    --accent-color : #00FFC4;
    --text-color : #F9F9F9;
}
*{
    padding: 0;
    margin: 0;
}

html{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16pt;
    color: var(--text-color);
}
body{
    min-height: 100vh;
    padding: 10px;
    background-color: var(--background);
    display: flex;
    flex-direction: column;
    align-items: center;

}
h1{
    margin: 100px;
    margin-bottom: 20px;
    font-size: 3rem;
    font-weight: 800;
    text-transform: uppercase;
    text-align: center;
    color: var(--accent-color);
}
.wrapper{
    width: 700px;
    max-width :100%;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#to-do-input{
    box-sizing: border-box;
    padding: 12px 20px;
    width: 100%;
    background: none;
    border: 2px solid var(--secondary-color);
    border-radius: 20px;
    font : inherit;
    color: var(--text-color);
   caret-color: var(--accent-color);
}
#to-do-input:focus{
    outline: none;
}
form{
    position: relative;
}
#add-button{
    position: absolute;
    top: 0;
    right: 0;

    background-color: var(--accent-color);
    height : 100%;
    padding: 0 30px;
    border: none;
    border-radius: 1000px;
    font: inherit;
    font-weight: 600;
    color: var(--background);
    cursor : pointer;
}
.to-do{
    margin-bottom: 10px;
    padding: 0px 16px;
    background-color:var(--primary-color);
    border-radius: 15px;
    display: flex;
    align-items: center;
}
.todo-text{
    padding: 15px;
    padding-right: 0;
    flex-grow: 1;
    transition: 200ms ease;
}
.delete-button{
    padding: 3px;
    background: none;
    border: none;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}
.delete-button svg{
    transition: all 0.3s ease;
}
.delete-button svg:hover{
    fill: red;
}
.custom-checkbox{
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    min-height: 20px;
    min-width: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    transition: 200ms ease;
    cursor: pointer;
}

input[type="checkbox"]:checked~.custom-checkbox{
    background-color: var(--accent-color);
}
input[type="checkbox"]:checked~.custom-checkbox svg{
    fill: var(--primary-color);
}
input[type="checkbox"]:checked~.todo-text{
    text-decoration: line-through;
    color: var(--secondary-color);
}
input[type="checkbox"]{
    display: none;
}
Li{
    list-style: none;
}
@media (max-width : 500px){
    #add-button{
        position: unset;
        width: 100%;
        margin: 10px;
        height: 5vh;
        border-radius: 20px;
    }
    h1{
        margin: 50px;
        font-size: 15vw;
    }
}