* {
    box-sizing: border-box;
  }
html {
    scroll-behavior: smooth;
  }

body {
    background-color: #292929;
    font-family: sans-serif;
    color: #fff;
    text-align: center;
    margin: 0;
}



/* homepage */
.background-clip {
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    width: 100%;
    overflow: hidden;
    opacity: 0.1;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2.5rem;
    font-size: 0.825rem;
}

.qlass-logo {
    width: 3.5vh;
    margin-right: 3rem;
    /* margin-left: auto; */
}

.nav-bar {
    display: flex;
    align-items: center;
    gap: 6rem;
    margin-left: 4rem;
}

.nav-bar a {
    text-decoration: none;
    font-size: 1.5rem;
    color: #fff;
    margin: 1.3rem;
    padding-left: 0.8rem;
    border-left: #fff 1px solid;
    white-space: nowrap;
    /* height: 30px; */
}

.nav-bar a:hover{
    font-weight: 800;
    border-left: #fff 5px solid;
    
} 

.qlass-title-img {
    width: 100rem;
    height: 50rem;
    /* border: 4px solid white; */
    padding: 0;
    margin: 0;
}

/* .qlass-title {
    font-size: 30rem;
    margin: 0;
    font-weight: 700;
    animation: fadeIn 2s ease-in-out forwards;
    margin-top: 4rem;
}

 @keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
} */

.qlass-desc {
    font-family: 'Roboto', sans-serif;
    margin-left: 15rem;

    font-weight: 100;
    animation: fadeIn 2s ease-in-out forwards;
}

.get-started-btn {
    font-family: 'Open Sans', sans-serif;
    display: inline-block;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    color: #292929;
    padding: .6rem 2rem;
    margin-top: 10rem;
    animation: fadeIn 2s ease-in-out forwards;
    background-color: #fff;
}

.footer-icon-container {
    position: fixed;
    top: 1000px;
    right: 20px; 
    /* display: flex;
    justify-content: flex-end; */
}

.footer-icon-container a {
    display: block;
    margin-bottom: 1.5rem;
    margin-right: .5rem;
}

.footer-icon-container a img {
    min-width: 50px;
    min-height: 50px;
}


@media only screen and (min-width: 1200px) and (max-width:1919px){
    .nav-bar a {
        font-size: 1.2rem;
        margin: 0rem;
        padding-left: 0.8rem;
    }
    .qlass-title {
        font-size: 20rem;
    }
    .qlass-desc {
        margin-top: -4rem;
    }
    .footer-icon-container {
        margin-top: 2rem;
    }


}


@media only screen and (min-width: 768px) and (max-width:1200px){
    .nav-bar a {
        font-size: 1.1rem;
        margin: 0rem;
        padding-left: 0.8rem;
    }
    .qlass-title {
        font-size: 12rem;
    }
    .qlass-desc {
        font-size: 1.4rem;
        margin-top: -3rem;
    }
    .qlass-logo {
        width: 50px;
    }
    .footer-icon-container {
        justify-content: center;
        gap: 5rem;
    }
    .nav-bar {
        gap: 3rem;
        justify-content: flex-start;
        margin-left: 4rem;
    }
}

@media only screen and (min-width: 1920px){
    .nav-bar a {
        font-size: 1.1vw;
        margin: 0rem;
        padding-left: 0.8rem;
    }
    .qlass-title {
        font-size: 20vw;
    }
    .qlass-desc {
        font-size: 2vw;
        margin-top: -6.5vh;
    }
    .qlass-logo {
        width: 4vw;
    }
    .footer-icon-container {
        justify-content: center;
        gap: 5rem;
    }
    .nav-bar {
        gap: 2.5vw;
        justify-content: space-around;
        margin-left: 4rem;
    }


}

@media only screen and (min-width: 2460px) {

    .get-started-btn {
        padding: .8rem 3.6rem;
        font-size: 1.8rem;
    }

    .footer-icon-container {
        top: 1200px;
    }

    .footer-icon-container a img {
        min-width: 75px;
        min-height: 75px;
    }

    .about-us-container-second h1 {
        font-size: 4.5rem;
    }

    .about-us-container-second p {
        font-size: 2.5rem;
    }
}

@media only screen and (min-width: 2600px) {

    .footer-icon-container {
        top: 1300px;
    }

    .about-us-container {
        margin-top: 40vh ;
    }

}

/* about-us page */

.about-us-container {
    display: flex;
    justify-content: center;
    gap: 5rem;
    align-items: center;
    margin: 20vh 10vh;
}

.top-margin {
    margin-top: 20vh;
    margin-bottom: 40vh;
}

.bottom-margin {
    margin-bottom: 0vh;
}

.about-us-first-session {
    /* font-size: 7rem; */
    line-height: 0.1;
    text-align: right;
}
.about-us-first-session h1{
    font-size: 9rem;
}

/* .qlass-logo-about-us {
    width: 150px;
    height: 150px;
    margin-left: -2rem;
} */

.free-session-container {
    font-size: 2rem;
    text-align: left;
    max-width: 40%;
    /* line-height: 0.5; */
}

.free-session-container h1 {
    font-size: 5rem;
    width: 80%;
    line-height: 1.5;
}

.free-sesh-paragraph {
    font-weight: 100;
    line-height: 1.4;
    font-size: 1.8rem;
}

.register-form {
    display: inline-block;
    text-decoration: none;
    font-family: 'Open Sans', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    color: #292929;
    padding: .6rem 2.2rem;
    background-color: #fff;
    margin-top: 2rem;
}

.free-sesh-paragraph strong {
    font-weight: 800;
}

.inquiries-container {
    font-size: 1.4rem;
    font-weight: 100;
    line-height: 0.3;
    margin-top: 5rem;
}

.inquiries-container p {
    letter-spacing: 2px;
    line-height: 0.8;
}

.about-us-paragraph {
    font-size: 1.5rem;
    font-weight: 100;
}

.about-us-first-session h1 {
    font-weight: 600;
}

.about-us-container-second {
    display: inline-flex;
    flex-direction: column;
    text-align: left;
    padding-top: 10rem;
    width: 50%;
    margin-bottom: 5rem;
}

#about-us-image{
    width:40vw;
}

.second-title {
    font-size: 3rem;
    width: 55%;
    display: block;
    margin-bottom: 3rem;
}

.second-paragraph,
.second-paragraph-animation {
    font-size: 2rem;
    font-weight: 100;
    line-height: 1.5;
}

.second-paragraph-animation {
    display: inline-block; 
    margin-right: 150px;
    position: relative;
    animation: horizontalMove 20s linear infinite;
}

.catering-service-container {
    display: flex;
    justify-content: center;
    gap: 7rem;
    background-color: #404040;
    padding: 1.9rem;
    margin-top: 5vh;
    font-weight: 800;

    white-space: nowrap; /* Ensure the text stays in a single line */
    overflow: hidden;
}

@keyframes horizontalMove {
    from{right:-100vw;}
    to{right:100vw;}
  }

.qlass-footer {
    display: flex;
    border: #000 solid 4px;
    padding: 4rem;
    margin: 5rem 0;
}

/* .qlass-footer {
    display: flex;
    padding-top: 1.5rem;
    gap: 5rem;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 300;
}

.qlass-footer p {
    text-align: center;
}

.qlass-logo-footer {
    width: 80px;
    height: 80px;
} */

.qlass-footer-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: .2rem;
    margin: 4rem 0;
}

.qlass-footer-logo h1 {
    font-size: 1.4rem;
    font-weight: 400;
}

.qlass-footer-logo img {
    margin-bottom: 0.5rem;
    width: 30px;
    height: 30px;
}

@media only screen and (min-width: 1200px) and (max-width:1880px){
    .qlass-footer {
        font-size: 1rem;
    }
    .about-us-first-session h1{
        font-size: 7rem;
    }
    .qlass-logo-about-us {
        width: 100px;
        height: auto;
    }
    
    .free-session-container {
        font-size: 1.6rem;
        max-width: 400px;
        line-height: 0.5;
    }

    .free-session-container h1 {
        line-height: 1.2;
    }
    
    .free-sesh-paragraph {
        font-size: 1.35rem;
    }

    .register-form {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }
    .second-title {
        font-size: 2.5rem;
        width: 100%;
    }
    
    .second-paragraph {
        font-size: 1.5rem;
    }

    .map-container h1 {
        font-size: 2rem;
    }

    .user-email h1 {
        font-size: 5.1rem;
    }

    .user-email p {
        font-size: 1.5rem;
    }
}

@media only screen and (min-width: 768px) and (max-width:1200px){
    .qlass-footer {
        font-size: 1rem;
    }
    .about-us-first-session {
        font-size: 3.5rem;
    }
    .qlass-logo-about-us {
        width: 80px;
        height: auto;
    }
    
    .free-session-container {
        font-size: 1.3rem;
        max-width: 400px;
        line-height: 0.5;
    }
    
    .free-sesh-paragraph {
        font-size: 1.2rem;
    }
    .second-title {
        font-size: 3rem;
    }
    
    .second-paragraph {
        font-size: 2rem;
    }

}

@media only screen and (min-width: 2460px)  {
    
    .about-us-first-session h1 {
        font-size: 13rem;
    }

    .free-session-container h1 {
        font-size: 7.2rem;
    }
    
    .free-sesh-paragraph {
        font-size: 2.5rem;
    }

    .register-form {
        font-size: 2rem;
        padding: .8rem 3.5rem;
    }
    
   }

@media only screen and (min-width: 2140px) and (max-width:2460px) {
    .free-session-container h1 {
        font-size: 5.5rem;
    }

}


/* become-mentee page */

.main-section {
    display: flex;
    justify-content: space-around;
    /* flex-wrap: wrap; */
    gap: 5rem;
    margin-top: 100px;
    margin: 100px;
}
/* #hsk-container{
    background-color: white;
    width: 12vw;
    height: 12vw;
    padding: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
} */

#hsk-text{
    font-size: 7rem;
    color: #000;
}

#ielts-container{
    /* background-color: white;
    width: 30vw;
    height: 30vw;
    padding: 40px;
    border-radius: 50%; */
    display: flex;
    align-items: center;
}

#ielts-text{
    font-size: 10vw;
    color: #dd052b;
    letter-spacing: -10px;
    font-family: 'Archivo-black', sans-serif;
    font-weight: 800;
    background-color: white;
    padding: 10vw 3vw;
    border-radius: 50%;

    
    
}

#tm{
    font-size: 2.5vw;
    color: #000;
    vertical-align: super;
}

#hsk-logo{
    width: 11vw;
    height: 10vw;
    border-radius: 50%;
}

.qlass-container{
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 5rem;
    margin-top: 100px;
}    

.qlass-course{
    text-align: justify;
    line-height: 1.5;
}

.qlass-body-logo {
    width: 150px;
    margin-left: -20px;
}

.qlass-course p {
    font-family: 'Nunito', sans-serif;
    font-weight: 500;
    text-align: left;
    letter-spacing: .3rem;
    margin: 1rem 0;
    text-align: justify;
    font-size: 2.2rem;
}

.course-title{
    font-size: 5.1rem;
    font-weight: 600;
    margin: 1rem 0;
}

.course-buttons a {
    display: block;
    width: max-content;
    margin: 2rem 0;
}

.official-exam-container {
    margin: 30rem 0;
}

.examination-container {
    margin: 4.5rem 0;
    padding: 0 0 5rem 0;
    background-color: #fff;
}

.img-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 20rem;
}

.img-container img {
    width: 10%;
    height: 10%;
}

.register-form-exam {
    display: inline-block;
    text-decoration: none;
    font-family: 'Open Sans', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    padding: .6rem 2.2rem;
    background-color: #373637;
    color: #fff;

}

.register-now-container {
    display: flex;
    align-items: center;
    font-size: 10rem;
    margin: 3rem 0 0 10rem;
}

.register-info {
    font-size: 2.2rem;
    text-align: left;
    width: 35%;
    margin-right: 15%;
}

.register-paragraph,
.course-details p {
    font-weight: 500;
    font-size: 2.2rem;
    letter-spacing: .3rem;
}

.register-btn-container {
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), 
    url("images/girl-studying.jpg");
    background-size: cover;
    margin-top: 6rem;
    width: 50%;
    min-height: 1200px;
}

.register-btn-container a {
    font-size: 5rem;
    color: #fff;
    font-weight: 700;
}

.map-image {
    width: 90%;
    margin-bottom: 10rem;
    margin-top: 10vh;
}

.quote-img-left {
    margin-right: 1rem;
}

.quote-img-left,
.quote-img-right {
    font-size: 4rem;
    margin-bottom: 5rem;
}

.quote-img-right {
    margin-left: 1rem;
}

/* 
.course-details-section {
    display: flex;
    flex-wrap: wrap;
    gap: 5rem;
    justify-content: space-around;
    align-items: center;
    margin-top: 7rem;
    margin-bottom: 12rem;
}

.course-details {
    width: 30%;
    text-align: left;
}

.course-details h1, .register-info h1 {
    font-size: 4rem;
} */


@media only screen and (min-width: 1200px) and (max-width:1880px){
    .qlass-course{
        text-align: justify;
        width: 500px;
        line-height: 1.3;
    }
    .qlass-body-logo{
        width:120px;
    }
    .course-details h1, .register-info h1 {
        font-size: 3rem;
    }
    .register-paragraph,
    .course-details p {
        font-size: 1.8rem;
        line-height: 1.5;
    }

    .register-btn-container a {
        font-size: 4rem;
        color: #fff;
        font-weight: 700;
    }
    .course-title{
        font-size: 2.8rem;
    }
    .qlass-course p{
        font-size: 1.5rem;
    }
    



}


@media only screen and (min-width: 768px) and (max-width:1199px){
    .qlass-body-logo{
        width:100px;
    }
    .course-details h1, .register-info h1 {
        font-size: 2.5rem;
    }
    .register-paragraph,
    .course-details p {
        font-size: 1.2rem;
        line-height: 1.5;
    }
    .qlass-footer {
        font-size: 1rem;
    }
    .register-btn-container a {
        font-size: 3.2rem;
    }
    .course-title{
        font-size: 2.5rem;
    }
    .qlass-course p{
        font-size: 1.2rem;
    }
    .register-btn-container {
        min-height: 800px;
    }

}



/* become a Mentor page*/

.carrer-calling-section {
    margin-bottom: 15rem;
    margin-top: 15rem;
}

.career-calling {
    font-size: 10rem;
    margin-bottom: 0;
    margin-top: 10rem;
}

.career-font {
    font-size: 3rem;
}

.career-paragraph {
    margin: 0 auto;
    font-size: 1.6rem;
    width: 70%;
    letter-spacing: .2rem;
    line-height: 1.5;
}

/* .apply-btn {
    display: inline-block;
    font-size: 1.5rem;
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.3rem;
} */

/* contact page */

.whole-contact-container {
    background: linear-gradient(to bottom, #292929, #000);
    border-bottom: #000 solid 1px;
}

.contact-container {
    display: flex;
    gap: 4rem;
    justify-content: space-around;
    margin-top: 35vh;
    width: 80%;
    margin-left: 15vw;
}

.user-email {
    color: #fff;
    text-align: left;
    font-size: 1.5rem;
    border-radius: 60px;
    font-weight: 300;
}

.user-email input {
    width: 93%;
    padding: 1.2rem 2rem;
    font-size: 1.5rem;
    border: none;
}

#email::placeholder {
    font-family: sans-serif;
    color: #373637;
    /* font-size: 1.5rem; */
    opacity: 0.6;
}

.input-container {
    display: flex;
    background-color: #fff;
}

.input-container button {
    font-size: 1.5rem;
}

.save-btn {
    font-family: 'roboto';
    font-weight: 400;
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    border: none;
    background: none;
    color: #373637;
    padding-right: 2rem;
}

.social-container {
    /* width: 40vw; */
    text-align: left;
    letter-spacing: .2rem;
    font-weight: 300;
    line-height: 1.5;
    font-size: 1.4rem;
}

.social-title {
    font-size: 5rem;
    font-weight: 600;
    margin-bottom: 0;
}

.contact-title {
    font-size: 7.5rem;
    width: 60vh;
    text-align: left;
}

.footer-container {
    text-align: right;
    margin-top: 25rem;
    line-height: 2.5;
}

.footer-container h1 {
    font-size: 4rem;
}

.footer-container p {
    font-size: 1rem;
}

.social-media-icons {
    margin: 1.8rem 0;
}

.regis-container {
    margin-top: 30rem;
    font-size: 1.5rem;
}

.contact-number-container {
    margin: 2.5rem 0;
    line-height: 0.7;
}



@media only screen and (min-width: 1200px) and (max-width:1919px){   
.contact-container {
    width: 70%;
}
.user-email {
    font-size: 1.5rem;
}
#email::placeholder {
    font-size: 1rem;
}
.social-container {
    width: 40vw;
    font-size: 1.1rem;
}
.social-container h1 {
    font-size: 3.1rem;
}
.user-email input {
    padding: .4rem 1rem;
}
.input-container button {
    font-size: 1.1rem;
}

.regis-container {
    margin-top: 39rem;
}

.free-session-container .register-form {
    padding: 1.2rem 2.2rem;
}

}


@media only screen and (min-width: 768px) and (max-width:1200px){
   
.user-email {
    font-size: 1.3rem;
}

#email::placeholder {
    font-size: 1.2rem;
}

.save-btn {
    font-size: 1.2rem;
}

.social-container {
    font-size: 1.2rem;
}

.social-container p {
    font-size: 1rem;
}
}

@media only screen and (min-width: 1920px){
   
.contact-container {
    gap:1rem;
    margin-left: 12vw;
}

.user-email {
    font-size: 2.5rem;
}
#email::placeholder {
    font-size: 1.5rem;
}
.save-btn {
    font-size: 2rem;
}

.social-container {
    width: 30vw;
    font-size: 1.6rem;
}

.qlass-logo {
    margin-right: 5rem;
}
}

@media only screen and (min-width: 2560px){

    .career-calling {
        font-size: 12rem;
    }

    .career-paragraph {
        font-size: 2.5rem;
    }

    .inquiries-container {
        font-size: 1.9rem;
    }

    .contact-title {
        width: 40vh;
    }

    .user-email {
        width: 35%;
    }

    .social-container {
        font-size: 2rem;
    }

    .footer-container h1 {
        font-size: 5rem;
    }

    .footer-container p {
        font-size: 1.5rem;
    }

    .regis-container {
        font-size: 1.8rem;
    }

    .contact-number-container {
        font-size: 1.6rem;
        line-height: 1.1;
    }

    .qlass-footer-logo h1 {
        font-size: 1.6rem;
    }


}   

/* utility */

.nunito {
    font-family: 'Nunito', sans-serif;
}

.roboto {
    font-family: 'Roboto', sans-serif;
}

.font-light {
    font-weight: 500;
}

.white-background {
    background-color: #fff;
}


/* tester */

/* .carousel {
    width: 100%;
    overflow: hidden;
  }

  .slides {
    display: flex;
    transition: transform 0.5s ease-in-out;
  }

  .slide {
    width: 100vw;
    flex-shrink: 0;
    box-sizing: border-box;
  }

  .slide img {
    width: 10%;
    height: auto;
  }

  button {
    font-size: 1.5rem;
    cursor: pointer;
  }
  
  .nav-btn-container {
    display: flex;

  }
  
  .carousel-item{
    height: 70vh;
    position: relative;
    background-position: center;
    background-size:cover;
    padding: 30px;
  }

  .carousel-images img{
    width: 15vw;
  }

  .carousel-images{
    height:25vh;
    margin-bottom: 28vh;
  }

  .carousel-indicators button{
    height: 10px !important;
    width: 10px !important;
    margin: 0 10px !important;
    border-radius: 100%;
    background-color: #373637 !important;
  } */