app.css

* {
    box-sizing: border-box;
}

body {
    font-family: avenir;
    margin: 0;
    padding: 1rem;
    background-color: #E5E5E5;
}


/* header styles without libraries */

header {
    width: 100%;
    padding: 1rem 2rem;
}

.header-box {
    height: 20vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.header-logo {
    display: inline-block;
    width: 20px;
    height: 20px;
    background: #9C69E2;
    border-radius: 20px;
}


/* header logo styles */

.h-logo {
    display: inline-block;
    width: 20px;
    height: 35px;
    background: #F063B8;
    border-radius: 20px;
}

.header-box ul {
    list-style: none;
    padding-left: 0;
    display: block;
    margin: 0;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    width: 100%;
}


/* list styles for all link */

ul li {
    display: inline-block;
    list-style: none;
    color: #4B5D68;
    font-family: Avenir;
    font-style: normal;
    font-weight: 500;
    font-size: 1.2rem;
    margin: 0 0.8rem;
}


/* button styles */

div .btn {
    width: 100%;
    padding: 1rem 2rem;
    outline: none;
    border: none;
    background: #FFFFFF;
    box-shadow: 0px 5px 5px rgba(75, 93, 104, 0.1);
    border-radius: 50px;
    font-family: Avenir;
    font-style: normal;
    font-weight: 800;
    font-size: 16px;
    line-height: 160%;
    letter-spacing: 0.005em;
    color: #212353;
    cursor: pointer;
    transition: all 0.5s ease;
}

div .btn:hover {
    color: #FFF;
    background-color: #212353;
}


/* section two styles */

.container-2,
.section-2 {
    display: grid;
    grid-template-columns: 1fr;
    padding: 2rem;
    align-items: center;
}

img {
    width: 100%;
}

.headline h1 {
    font-size: 3rem;
    font-family: Helvetica;
    font-style: normal;
    font-weight: bold;
    color: #212353;
    margin-bottom: 0.5rem;
}

.headline p {
    font-family: Avenir;
    font-style: normal;
    font-weight: 500;
    font-size: 18px;
    line-height: 160%;
    padding-top: 5%;
    color: #4B5D68;
    margin-top: 0.2rem;
}

.headline button {
    width: 70%;
    border: none;
    border-radius: 50px;
    padding: 1rem;
    background-color: #9C69E2;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.5s ease;
}

.headline button:hover {
    color: #9C69E2;
    background-color: white;
}

.section-2 {
    grid-gap: 30px;
    background: rgba(240, 99, 184, 0.15);
    border-radius: 50px;
}


/* whole details for section 2 styles */

.details h1 {
    font-family: Helvetica;
    font-style: normal;
    font-weight: bold;
    font-size: 2.3rem;
    line-height: 3rem;
    color: #212353;
    margin-bottom: 0.3rem;
}

.details p {
    font-family: Avenir;
    font-style: normal;
    font-weight: 500;
    font-size: 1.1rem;
    line-height: 160%;
    color: #4B5D68;
}


/* The styles for feature sections */

.feature-text {
    width: 100%;
    text-align: center;
    margin-bottom: 3rem;
}

.feature-text h2 {
    color: #212353;
    font-size: 2rem;
    margin-bottom: 0.1rem;
}

.feature-text p {
    font-family: Avenir;
    font-style: normal;
    font-weight: 500;
    font-size: 1.1rem;
    line-height: 160%;
    color: #4B5D68;
}

.feature-container {
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 30px
}

.feature-container article {
    height: 100%;
    display: grid;
    align-items: center;
    grid-template-columns: 1fr 1fr;
    grid-gap: 20px;
    padding: 1rem;
}

.feature-container article img {
    height: 100%;
}

.feature-container article:nth-of-type(1) {
    background-image: url('bg1.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.feature-container article:nth-of-type(2) {
    background-image: url('bg2.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.feature-container article:nth-of-type(3) {
    background-image: url('bg3.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.feature-container article:nth-of-type(4) {
    background-image: url('bg4.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.feature-container article h3 {
    font-family: Helvetica;
    font-style: normal;
    font-weight: normal;
    font-size: 24px;
    color: #212353;
}

.feature-container article p {
    color: #4B5D68;
    font-family: Avenir;
    font-style: normal;
    font-weight: normal;
    font-size: 16px;
}

.feature-container article a {
    text-decoration: none;
    font-family: Avenir;
    font-style: normal;
    font-weight: 800;
    font-size: 16px;
    color: #212353;
    letter-spacing: 0.05rem;
}


.testimonials-container {
    margin-top: 5rem;
    background: #9C69E2;
    border-radius: 50px;
    padding: 1rem;
}

.testimonials h2 {
    font-family: Helvetica;
    font-style: normal;
    font-weight: bold;
    font-size: 40px;
    line-height: 130%;
    color: #FFFFFF;
    text-align: center;
}

.testimonials h2 +div {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.testimonial:nth-of-type(2) {
    display: none;
}

.testimonial:nth-of-type(3) {
    display: none;
}

.testimonial {
    display: flex;
    align-items: start;
    background: #FFFFFF;
    box-shadow: 0px 20px 0px rgba(156, 105, 226, 0.3);
    border-radius: 20px;
    padding: 1rem;
    font-family: Avenir;
    font-style: normal;
    flex-wrap: wrap;
    flex-direction: column;
}

.testimonial img {
    width: 100%;
    margin-right: 1rem;
}

.testimonial h4 {
    margin-bottom: 0.2rem;
    font-weight: 900;
    font-size: 18px;
    line-height: 160%;
    color: #212353;
}

.testimonial small {
    font-weight: 500;
    font-size: 14px;
    line-height: 160%;
    letter-spacing: 0.01em;
    color: #9C69E2;
}

.testimonial p {
    font-weight: normal;
    font-size: 18px;
    line-height: 180%;
    color: #4B5D68;
}

.testimonials-container article {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.8rem;
    padding: 0 1rem;
}

.testimonials-container article .indicators span {
    width: 5px;
    height: 5px;
    background: #FFFFFF;
    display: inline-block;
    border-radius: 50%;
}

hr {
    margin: 3rem 0;
    width: 100vw;
    opacity: 0.2;
    height: 2px;
    background-color: #9C69E2;
}



/* The stressfull footer styles */

footer {
    display: grid;
    grid-template-columns: 1fr;
    font-family: Avenir;
}

.footer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-direction: column;
}

.footer-head h3 {
    font-style: normal;
    font-weight: bold;
    font-size: 40px;
    line-height: 130%;
    color: #212353;
    margin-bottom: 0;
}

.footer-head p {
    margin-top: 0;
    font-style: normal;
    font-weight: 500;
    font-size: 18px;
    line-height: 160%;
    color: #4B5D68;
}

.footer-head div:nth-of-type(2) {
    width: 100%;
    display: flex;
    justify-content: space-between;
}

.footer-head button {
    border-radius: 50px;
    padding: 0.8rem;
    border: none;
    outline: none;
    font-family: Avenir;
    font-style: normal;
    font-weight: 900;
    line-height: 160%;
    text-align: center;
    width: 50%;
    margin: 0 0.3rem;
}

.footer-head button:nth-of-type(1) {
    background: #F063B8;
    color: white;
    font-size: 18px;
}

.footer-head button:nth-of-type(2) {
    display: flex;
    align-items: center;
    justify-content: space-around;
    background-color: #FFFFFF;
    box-shadow: 0px 5px 5px rgba(75, 93, 104, 0.1);
    font-size: 16px;
    width: 60%;
}

.footer-head button:nth-of-type(2) span:nth-of-type(1) {
    width: 20px;
    height: 0px;
    border: 1px solid #9C69E2;
}

.footer-head button:nth-of-type(2) span:nth-of-type(2) {
    width: 0px;
    height: 6px;
    border: 1px solid #9C69E2;
    transform: rotate(90deg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    grid-gap: 10px;
}

.footer-logo {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}

.footer-logo h4 {
    font-weight: 900;
    font-size: 20px;
    line-height: 160%;
    color: #212353;
}

.footer-content p {
    font-weight: 500;
    font-size: 16px;
    line-height: 180%;
    letter-spacing: 0.01em;
    color: #212353;
    margin: 0;
}

.footer-content span:nth-of-type(1) {
    width: 20px;
    height: 20px;
    background: #9C69E2;
    border-radius: 20px;
    margin-right: 0.3rem;
}

.footer-content span:nth-of-type(2) {
    width: 20px;
    height: 35px;
    background: #F063B8;
    border-radius: 20px;
    margin-right: 0.3rem;
}

.footer-content ul {
    padding-left: 0;
    margin-left: 0;
}

.footer-content ul li {
    display: block;
    margin-left: 0;
    font-weight: normal;
    font-size: 16px;
    line-height: 250%;
    color: #212353;
}

.footer-content div h5 {
    font-weight: 900;
    font-size: 16px;
    line-height: 160%;
    color: #212353;
    margin: 0;
}

.footer-content div h5 a {
    text-decoration: none;
    color: #212353;
}

.footer-content div:nth-of-type(5) {
    grid-column: 1/-1;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

.footer-content div:nth-of-type(5) p {
    font-weight: normal;
    font-size: 12px;
    line-height: 180%;
    letter-spacing: 0.01em;
    color: #212353;
}


/* Media Queries for all screen size and good responsivesness */


/* For Tablets */

@media screen and (min-width: 768px) {
    .header-box {
        height: 10vh;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }
    .container-2,
    .section-2 {
        display: grid;
        grid-template-columns: 1fr 1fr;
        padding: 2rem;
        align-items: center;
    }
    .feature-container {
        grid-template-columns: 1fr 1fr;
    }
    .testimonial img {
        width: 20%;
        margin-right: 1rem;
        align-self: center;
    }
    .testimonial small {
        text-align: center;
    }
    
    .footer-head {
        flex-direction: row;
    }
    .footer-head div:nth-of-type(2) {
        width: 50%;
    }
    .footer-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-gap: 30px;
    }
    .footer-content div:nth-of-type(2),
    .footer-content div:nth-of-type(4) {
        align-self: center;
        justify-self: center;
    }
}


/* For Laptops and higher */

@media screen and (min-width: 992px) {
    body {
        padding: 2rem;
    }
    .header-box {
        height: 10vh;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }
    .container-2,
    .section-2 {
        display: grid;
        grid-template-columns: 1fr 1fr;
        padding: 2rem;
        align-items: center;
    }
    .testimonials-container {
        padding: 3rem;
    }
    .testimonial {
        margin-right: 2rem;
        padding: 2rem;
        flex-direction: row;
        flex-wrap: nowrap;
    }
    .testimonial img {
        width: 20%;
        margin-right: 1rem;
        align-self: start;
    }
    .headline h1 {
        font-size: 6rem;
        font-family: Helvetica;
        font-style: normal;
        font-weight: bold;
        color: #212353;
        margin-bottom: 0.5rem;
    }
    .headline button {
        width: 50%;
    }
    .feature-container {
        grid-template-columns: 1fr 1fr;
    }
    .footer-head {
        flex-direction: row;
    }
    .footer-content {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr 1fr;
        grid-gap: 30px;
    }
    .footer-head div:nth-of-type(2) {
        width: 40%;
    }
    .footer-content span:nth-of-type(1),
    .footer-content span:nth-of-type(2) {
        margin-right: 0.3rem;
    }
    .footer-content div:nth-of-type(2),
    .footer-content div:nth-of-type(3),
    .footer-content div:nth-of-type(4) {
        align-self: center;
        justify-self: center;
    }
}