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HTML

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Contact Form</title>
    <link rel="stylesheet" href="style.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta2/css/all.min.css">
</head>

<body>
    <div class="container">
        <span class="big-circle"></span>
        <span class="right-circle"></span>
        <div class="form">
            <div class="contact-info">
                <h3 class="title">Let's get in touch</h3>
                <p class="text">
                    Lorem ipsum dolor sit, amet consecteture adipisicing elit. Veniam repellendus!
                </p>

<div class="info">
                    <div class="information">
                        <i class="fas fa-map-marker-alt"></i>  
                        <p>101 Dakar City Senegal, GD 400011</p>
                    </div>
                    <div class="information">
                        <i class="fas fa-envelope"></i>  
                        <p>sample@codevik.com</p>
                    </div>
                    <div class="information">
                        <i class="fas fa-phone"></i>  
                        <p>0123-456-789</p>
                    </div>
                </div>

<div class="social-media">
                    <p>Connect with us :</p>
                    <div class="social-icons">
                        <a href="#"><i class="fab fa-facebook-f"></i></a>
                        <a href="#"><i class="fab fa-linkedin-in"></i></a>
                        <a href="#"><i class="fab fa-instagram"></i></a>
                        <a href="#"><i class="fab fa-twitter"></i></a>
                    </div>
                </div>
            </div>

<form>
                    <h3 class="title">Contact us</h3>
                    <div class="input-conatiner">
                        <input type="text" name="name" class="input">
                        <label for="">Username</label>
                        <span>Username</span>
                    </div>

<div class="input-conatiner">
                        <input type="email" name="email" class="input">
                        <label for="">Email</label>
                        <span>Email</span>
                    </div>

<div class="input-conatiner">
                        <input type="tel" name="phone" class="input">
                        <label for="">Phone</label>
                        <span>Phone</span>
                    </div>

<div class="input-conatiner textarea">
                        <input name="message" class="input" />
                        <label for="">Message</label>
                        <span>Message</span>
                    </div>
                    <input type="submit" value="Send" class="btn">
                </form>
            </div>
        </div>

</div>

</html>

CSS

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@100;200;300;400;500;600;700;800&display=swap");

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

.container {
    position: relative;
    width: 100%;
    min-height: 100vh;
    padding: 2rem;
    background-color: #c8e3eb;
    overflow: hidden;
    justify-content: center;
    align-items: center;
    display: flex;
}

.form {
    width: 100%;
    max-width: 820px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 20px 1px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    overflow: hidden;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
}

.contact-form {
    background-color: #3571f1;
    position: relative;
}

.circle {
    background: linear-gradient(135deg, transparent 10%, #310346);
    position: absolute;
    border-radius: 50%;
}

.circle.one {
    width: 130px;
    height: 130px;
    top: 130px;
    right: -40px;
}

.circle.two {
    width: 80px;
    height: 80px;
    top: 10px;
    right: 30px;
}

.contact-form:before {
    content: '';
    position: absolute;
    width: 26px;
    height: 26px;
    background-color: #1a32bc;
    transform: rotate(45deg);
    top: 50px;
    left: -13px;
}

form {
    padding: 2.3rem 2.2rem;
    z-index: 10;
    overflow: hidden;
    position: relative;
}

.title {
    color: #fff;
    font-weight: 500;
    font-size: 1.5rem;
    margin-bottom: 0.7rem;
    line-height: 1;
}

.input-conatiner {
    position: relative;
    margin: 1rem 0;
}

input {
    width: 100%;
    outline: none;
    border: 2px solid #fafafa;
    padding: 0.6rem 1.2rem;
    color: #fff;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    border-radius: 5px;
    transition: 0.3s;
    background: none;
}

textarea.input {
    padding: 0.8rem 1.2rem;
    min-height: 150px;
    border-radius: 5px;
    resize: none;
    overflow-y: auto;
    outline: none;
    background: transparent;
    border: 2px solid #fafafa;
    width: 100%;
    color: #fff;
    font-size: 0.95rem;
}

.input-conatiner label {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    padding: 0 0.4rem;
    color: #fafafa;
    font-size: 0.9rem;
    font-weight: 400;
    pointer-events: none;
    z-index: 1000;
    transition: 0.5s;
}

.input-conatiner.textarea label {
    top: 1rem;
    transform: translateY(0);
}

.btn {
    padding: 0.6rem 1.3rem;
    background-color: #fff;
    border: 2px solid #fafafa;
    color: #2a1abc;
    font-size: 0.95rem;
    line-height: 1;
    border-radius: 5px;
    outline: none;
    cursor: pointer;
    width: 100%;
    margin: 0;
    transition: 0.3s;
}

.btn:hover {
    background-color: transparent;
    color: #fff;
}

.input-conatiner span {
    position: absolute;
    top: 0;
    left: 25px;
    transform: translateY(-50%);
    font-size: 0.8rem;
    padding: 0 0.4rem;
    color: transparent;
    pointer-events: none;
    z-index: 500;
}

.input-conatiner span:before, 
.input-conatiner span:after {
    content: '';
    position: absolute;
    width: 10%;
    opacity: 0;
    transition: 0.3s;
    height: 5px;
    background-color: #3571f1;
    top:50%;
    transform: translateY(-50%);
}

.input-conatiner span:before {
    left: 50%;
}

.input-conatiner span:after {
    right: 50%;
}

.input-conatiner.focus label{
    top: 0;
    transform: translateY(-50%);
    left: 25px;
    font-size: 0.8rem;
}

.input-conatiner.focus span:before,
.input-conatiner.focus span:after {
    width: 50%;
    opacity: 1;
}

.contact-info {
    padding: 2.3rem 2.2rem;
    position: relative;
}

.contact-info .title {
    color: #1d1abc;
}

.text {
    color: #333;
    margin: 1.5rem 0 2rem 0;
}

.information {
    display: flex;
    color: #555;
    margin: 0.7rem 0;
    align-items: center;
    font-size: 0.95rem;
}

.information i {
    color: #1a53bc;
}

.social-media {
    padding: 2rem 0 0 0;
}

.social-media p {
    color: #333;
}

.social-icons {
    display: flex;
    margin-top: 0.5rem;
}

.social-icons a {
    width: 35px;
    height: 35px;
    background: linear-gradient(45deg, #1a5bbc, #141c92);
    border-radius: 5px;
    color: #fff;
    text-align: center;
    line-height: 35px;
    margin-right: 0.5rem;
    transition: 0.3s;
}

.social-icons a:hover {
    transform: scale(1.1);
}

.contact-info:before {
    content: '';
    position: absolute;
    width: 110px;
    height: 100px;
    border: 22px solid #1a4dbc;
    border-radius: 50%;
    bottom: -77px;
    right: 50px;
    opacity: 0.3;
}

.big-circle {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: linear-gradient(to bottom, #1c7bd4, #15449b);
    bottom: 50%;
    right: 50%;
    transform: translate(-40%, 38%);
}

.big-circle:after {
    position: absolute;
    width: 360px;
    height: 360px;
    content: '';
    background-color: #fafafa;
    border-radius: 50%;
    top: calc(50% - 180px);
    left: calc(50% - 180px);
}

.right-circle {
    /* content: ''; */
    position: absolute;
    width: 400px;
    height: 400px;
    background-color: #fafafa;
    border-radius: 50%;
    background: linear-gradient(to bottom, #1c7bd4, #15449b);
    bottom: 50%;
    right: 50%;
    transform: translate(150%, 75%);
    opacity: 0.8; 
}

.right-circle:after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background-color: #fafafa;
    border-radius: 50%;
    top: calc(50% - 150px);
    left: calc(50% - 140px);
}

/* // make it responsive */

@media(max-width: 850px) {
    .form{
        grid-template-columns: 1fr;
    }

.contact-info:before {
        bottom: initial;
        top: -75px;
        right: 65px;
        transform: scale(0.95);
    }

.right-circle {
        transform: translate(140%, 43%);
    }

.contact-form:before {
        top: -13px;
        left: initial;
        right: 70px;
    }

.big-circle{
        bottom: 75%;
        transform: scale(0.9) translate(-40%, 30%);
    }

.text {
        margin: 1rem 0 1.5rem 0;
    }

.social-media {
        padding: 1.5rem 0 0 0;
    }
}

@media(max-width:480px) {
    .container{
        padding: 1.5rem;
    }

.contact-info:before {
        display: none;
    }

.right-circle, .big-circle {
        display: none;
    }

form, .contact-info {
        /* font-size: 0.8rem; */
        padding: 1.7rem 1.6rem;
    }

.text, .information, .social-media p {
        font-size: 0.8rem;
    }

.title{
        font-size: 1.15rem;
    }

.social-icons a {
        width: 30px;
        height: 30px;
        line-height: 30px;
    }

.input {
        padding: 0.45rem 1.2rem;
    }

.btn {
        padding: 0.45rem 1.2rem;
    }
}