/* Importing Poppins font from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

html, body {
    display: grid;
    height: 100%;
    place-items: center;
    background-color: #ecf0f3;
}

.icons a{
    background-color: #ecf0f3;
    position: relative;
    height: 60px;
    width: 60px;
    margin: 0 10px ;
    border-radius: 50%;
    display: inline-flex;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: -3px -3px 7px #ffffff, 3px 3px 5px #ceced1;
}

.icons a:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    border-radius: 50%;
    background-color: #ecf0f3;
    box-shadow: inset -3px -3px 7px #ffffff, inset 3px 3px 5px #ceced1;
}

.icons a i {
    position: relative;
    z-index: 3;
    text-align: center;
    width: 100%;
    height: 100%;
    line-height: 60px;
    font-size: 25px;
}

.icons a:hover i {
    transform: scale(0.9);
}

.icons a:first-child {
    color: #0077B5;
}

.icons a:nth-child(2) {
    color: #000;
}

.icons a:nth-child(3) {
    color: #e1306c;
}

.icons a:nth-child(4) {
    color: #000;
}

.icons a:last-child {
    color: #4267B2;
}