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

* {
    box-sizing: border-box; /*if we add border or padding, it doesn't affect the width of it. */
}

body {
    background-color: #f5f5f5;
    color: #3d3d3d;
    font-family: 'Poppins', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0px;
    overflow-x: hidden;
}

h1 {
    color: rgb(179, 131, 226);
    font-size: 10rem;
    text-align: center;
    opacity: 0.4;
}

form {
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    width: 400px;
    border-radius: 10px;
}

.input {
    border: none;
    color: #444;
    font-size: 2rem;
    padding: 1rem 2rem;
    display: block;
    width: 100%;
}

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

.input:focus {
    outline-color: rgb(179, 131, 226);
}

.todos {
    background-color: #fff;
    padding: 0px;
    list-style-type: none;
    margin: 0px;
}

.todos li {
    border-top: 1px solid #e5e5e5;
    cursor: pointer;
    font-size: 1.5rem;
    padding: 1rem 2rem;
}

.todos li.completed {
    color: #b6b6b6;
    text-decoration: line-through;
}

small {
    color: #b5b5b5;
    margin-top: 3rem;
    text-align: center;
}