style.css

/* Start Variable */
:root {
    --app-background:  hsl(270, 20%, 96%);
    --submit-btn-background: hsl(271, 36%, 24%);
    --btn-outline: hsl(289, 100%, 72%) ;
    --main-heading:  hsl(271, 36%, 24%);
    --paragragh: hsl(270, 7%, 64%);
    --sub-heading: hsl(276deg 100% 81% / 28%);
    --chat-right: hsl(271, 15%, 43%);
    --chat-left: hsl(276, 55%, 52%);
}
/* End Variable */

/* Start Globle Values */
* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    Font-size: 16px;
    font-family: 'Poppins', sans-serif;
    font-family: 'Rubik', sans-serif;
    font-family: 'Work Sans', sans-serif;
}
/* End Global Values */

.app {
    position: relative;
    overflow-x: hidden;
}

.cir-1 {
    z-index: -1;
    width: 414px;
    height: 570px;
    position: absolute;
    top: -25px;
    left: -77px;
    border-radius: 0 0 210px 210px;
    background-image: linear-gradient(to right,hsl(264, 100%, 61%) ,hsl(293, 100%, 63%));
}
.cir-2 {
    z-index: -2;
    width: 414px;
    height: 33em;
    position: absolute;
    bottom: 0px;
    right: -130px;
    border-radius: 210px 210px 0 0;
    overflow: hidden;
    background-image: linear-gradient(to right,hsl(264deg 100% 61% / 5%) ,hsl(293deg 100% 63% / 7%));
}

.grid-col-2 {
    margin: 7em auto;
    display: grid;
    grid-template-columns: repeat(auto-fit , 220px minmax(400px , 1fr));
    gap: 100px;
    max-width: 800px;
    align-items: center;
}
@media (max-width: 600px){
    .grid-col-2 {
        grid-template-columns:  minmax(400px , 1fr);
        gap: 60px;
    }
    .grid-col-2 .page-heading {
        justify-self: center;
        text-align: center;
        padding: 50px;
    }
    .grid-col-2 .phone {
        justify-self: center;
    }
    .app .cir-1 {
        position: absolute;
        top: -25px;
        left: -174px;
    }
    .app .cir-2 {
        position: absolute;
        bottom: 0px;
        right: -174px;
    }
}
/* phone */
.grid-col-2 .phone {
    background-color: var(--app-background);
    width: 220px;
    border:7px solid white;
    border-radius: 25px;
}
/* phone - Head */
.phone .head {
    position: relative;
    border-radius: 18px 18px 5px 5px;
    background-image: linear-gradient(to right,hsl(264, 100%, 61%) ,hsl(293, 100%, 63%));
}
.phone .head span {
    width: 110px;
    height: 18px;
    background: white;
    position: absolute;
    left: 47px;
    top: -1px;
    border-radius: 0 0 12px 12px;
}
.phone .head .user {
    display: flex;
    padding: 26px 20px 10px;
}
.phone .head .user img {
    display: block;
    position: relative;
    width: 24px;
    border-radius: 50%;
    height: 24px;
    outline: 1px solid white;
}
.phone .head .user::before {
    content: "";
    position: absolute;
    width: 4px;
    height: 4px;
    left: 10px;
    top: 33px;
    border: 2px solid;
    border-color: white transparent transparent white;
    transform: rotate(315deg);
}
.phone .head .user .icon-dots {
    width: 2px;
    height: 10px;
    position: absolute;
    top: 33px;
    right: 12px;
}
.phone .head .user .icon-dots div {
    height: 2px;
    margin-bottom: 1px;
    background-color: white;
}
.phone .head .user .user-name {
    margin-left: 10px;
}
.phone .head .user .user-name h3 {
    font-size: 12px;
    font-weight: 700;
    color: white;
}
.phone .head .user .user-name p {
    font-size: 8px;
    font-weight: 400;
    color: hsl(270, 7%, 64%);
}

/* Phone - body */
.phone .body-app {
    padding: 9px;
    font-size: 7px;
    font-weight: 500;
    line-height: 10px;
}
    /* body-app first chat-left */ 
.phone .body-app .left {
    width: 118px;
}
.phone .body-app .left p{
    background-color: var(--sub-heading);
    color: var(--chat-left);
    padding: 4px;
    margin-bottom: 5px;
    border-radius: 6px 6px 6px 2px;
}

    /* body-app chat-right */
.phone .body-app .right {
    display: flex;
    flex-flow: column wrap;
    align-items: flex-end;
    margin: 8px 0;
}
.phone .body-app .right .pics {
    margin: 5px 0;
}
.phone .body-app .right .pics img {
    width: 25px;
    height: 25px;
    border-radius: 7px;
}
.phone .body-app .right p {
    background-color: white;
    color: var(--chat-right);
    padding: 4px;
    margin-bottom: 5px;
    border-radius: 6px 6px 2px 6px ;
}
.phone .body-app .right p:first-of-type {
    width: 115px;
}

    /* body-app second chat-left */ 
.phone .body-app .left .price {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
    width: 135px;
    padding: 6px 9px;
    border-radius: 6px 6px 6px 2px;
    background-image: linear-gradient(to left,hsl(264, 100%, 61%) ,hsl(293, 100%, 63%));
}
.phone .body-app .left .price span:first-child {
    display: block;
    width: 9px;
    height: 9px;
    border: .5px solid white;
    border-radius: 50%;
}
.phone .body-app .left .price  p {
    color: white;
    background: 0;
    margin: 0px 24px 0 0px;
}
.phone .body-app .left .price span:last-child {
    font-size: 12px;
    color: white;
    font-weight: 700;
}
    /* body-app input-text */
.phone .body-app .write {
    position: relative;
    margin-top: 10px;
}
.phone .body-app .write input[type="text"] {
    border: none;
    width: 100%;
    padding: 10px;
    border-radius: 25px;
}
button {
    position: absolute;
    top: 3px;
    right: 3.5px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    z-index: 2;
    background-color: var(--submit-btn-background);
    border: 0;
    cursor: pointer;
  }
button::after {
    content: "";
    position: absolute;
    width: 5px;
    height: 5px;
    right: 11px;
    top: 9.5px;
    border: 3px solid;
    border-color: white transparent transparent white;
    transform: rotate(135deg);
    border-radius: 2px;
}
::placeholder {
    font-size: 9px;
    font-weight: 400;
    color: hsl(276, 5%, 81%);;
}
input:focus {
    outline: none;
}
/* Page Heading */
.grid-col-2 .page-heading {
    width: 100%;
}
.grid-col-2 .page-heading h1 {
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--main-heading);
}
.grid-col-2 .page-heading p {
    color: var(--paragragh);
    line-height: 26px;
    font-weight: 400;
}