*{
    margin:0;
    padding:0;
    font-family: 'serif', sans-serif;
    box-sizing: border-box;
}
html{
    scroll-behavior: smooth;
}
body{
    background-color: #000000;
    color: #fff;
}
audio {
    display: none;
  }
/* --------------------- nav/highlights ------------------ */
#myhead{
    background-image: url("image/bgimage1.jpg");
    background-size: cover;
    background-position: center;
    width: 100%;
    height: 100vh;
    margin-bottom: 0%;
}
#sidemenu li a{
    color: #c8ff00;
}
.container{
    padding: 10px 10%;
}
nav{
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.dear{
    width: 140px;
    font-style: italic;
    cursor: pointer;
}
.D{
color: #c8ff00;
font-weight: bold;
font-size: 45px;
font-style: italic;
}
nav ul li{
    display: inline-block;
    list-style: none;
    margin: 10px 20px;
}
nav ul li a{
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    position: relative;
}
nav ul li a::after{
    content: '';
    width: 0px;
    height: 3px;
    background-color: #c8ff00;
    position: absolute;
    left: 0;
    bottom: -7px;
    transition: 0.4s;
}
nav ul li a:hover::after{
    width: 100%;
}
.myheader-text{
    margin-top: 28%;
    font-size: 30px;
}
.myheader-text h3{
    font-size: 2rem;
    font-weight: 700;
}
.myheader-text h3:nth-of-type(2){
    margin-bottom: 2rem;
}
.myheader-text h1{
    font-size: 4rem;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.3;
}
.myheader-text p{
    font-size: 1rem;
}
.myheader-text span{
    color: #c8ff00;
}
.myheader-text a{
    text-decoration: none;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 2.4rem;
    height: 2.4rem;
    background: transparent;
    border: .1rem solid #c8ff00;
    border-radius: 50%;
    font-size: 1.5rem;
    color: #c8ff00;
    margin: 1.6rem .8rem 2rem 0;
    transition: .5s ease;
}
.myheader-text a:hover{
    background: #c8ff00;
    color: #beec1a;
    box-shadow: 0 0 1rem #beec1a;
    color: #000;
}
.btn{
    text-decoration: none;
    margin-top: 1rem;
    display: inline-block;
    padding: .8rem .8rem;
    background: #c8ff00;
    border-radius: 5rem;
    box-shadow: 0 0 .8rem #c8ff00;
    font-size: .6rem;
    color: #11120c;
    letter-spacing: .1rem;
    font-weight: 600;
    transition: .5s ease;
}
.btn:hover{
    box-shadow: none;
}
 /* ------------------- about -------------------------- */
#about{
    margin-top: 0;
    padding-top: 8rem;
    padding-bottom: 10rem;
}
.row{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.about-col1{
    flex-basis: 35%;
}
.about-col1 img{
    width: 80%;
    border-radius: 10px;
    margin-left: 16%;
}
.about-col2{
    flex-basis: 60%;
    padding-left: 0%;
}
.sub-title{
    font-weight: 600;
    font-size: 45px;
    color : #fff;
    margin-bottom: 1rem;
}
.Am{
    color:#c8ff00;
}
.tab-title{
    display: flex;
    margin: 20px 0 40px;
    margin-top: 2.8rem;
}
.tab-links{
    margin-right: 50px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    text-align: center;
}
.tab-links::after{
    content: '';
    width: 0;
    height: 3px;
    background: #c8ff00;
    position: absolute;
    left: 0;
    bottom: -8px;
    transition: 0.4s;
}
.tab-links.active-link::after{
    width: 50%;
}
.tab-contents ul li{
    list-style: none;
    margin: 12px 0px;
}
.tab-contents ul li span{
    color: #bedf47;
    font-size: 15px;
}
.tab-contents{
    display: none;
}
.tab-contents.active-tab{
    display: block;
}
/*--------------- portfolio/projects ------------------  */
.portfolio{
    margin-bottom: 4rem;
}
.portfolio .sub-title{
    margin-bottom: 4rem;
    text-align: center;
    cursor: pointer;
}
.portfolio-container{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    align-items: center;
    gap: 2rem;
    margin-left: 5rem;
    margin-right: 5rem;
}
.portfolio-container .portfolio-box{
    position: relative;
    border-radius: 2rem;
    box-shadow: 0 0 1rem #272722;
    overflow: hidden;
    display: flex;
}
.portfolio-box img{
    width: 100%;
    transition: .5s ease;
}
.portfolio-box:hover img{
    transform: scale(1.1);
}
.portfolio-box .portfolio-layer{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, -1), #beec1a);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    padding: 0 4rem;
    transform: translateY(100%);
    transition: .5s ease;
}
.portfolio-box:hover .portfolio-layer{
    transform: translateY(0);
}
.portfolio-layer h4{
    font-size: 1.9rem;
}
.portfolio-layer p{
    font-size: 1rem;
    margin: .3rem 0 1;
}
.portfolio-layer a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 5rem;
    height: 5rem;
    background: #fff;
    border-radius: 50%;
}
.portfolio-layer a i{
    font-size: 2rem;
    color: #272722;
}
/* ------------------- Portfolio/certificates ----------- */
.heading .sub-title{
    display: flex;
    justify-content: center;
    margin-top: 12rem;
    cursor: pointer;
}
.certificate-gallery{
    margin-top: 4rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 2rem;
}
.certificate-box{
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    display: flex;
    grid-template-rows: 1fr auto;
    align-items: center;
    border: .2rem solid #c8ff00;
    box-shadow:0 0 1rem #caec4f;
}
.certificat-img{
    display: flex;
    align-items: center;
    justify-content: 100%;
    height: 100%;
    width: 100%;
}
.certificat-img img{
    width: 100%;
    opacity: .5s;
    height: 100%;
    transition: .5s;
}
.certificate-content{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    background: linear-gradient(rgba(0,0,0,.4), #090c01);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    transition: 0.5s;
    padding: 0 2rem;
}
.certificate-content:hover{
    transform: scale(1.2);
}
.certificate-box:hover .certificate-content{
    opacity: 1;
}
.certificate-content h3{
    font-size: 1.5rem;
    font-weight: 600;
}
.certificate-content p{
    font-size: .8rem;
    margin: 5px 0 15px 0;
}
/* --------------------- Portfolio/Hobbies --------------- */
#hobbies {
    padding: 50px 0;
}
.hobbies .sub-title{
    display: flex;
    justify-content: center;
    margin-top: 8rem;
    cursor: pointer;
    margin-bottom: 4rem;
}
.hobbies-container {
    display: flex;
    justify-content: space-around;
    max-width: 900px;
    margin: 0 auto;
}
.hobbies-box {
    text-align: center;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease-in-out;
}
.hobbies-box:hover {
    transform: scale(1.05);
}
.hobbies-box i {
    font-size: 2em;
    color: #c8ff00;
    margin-bottom: 10px;
}
.hobbies-box h3 {
    font-size: 1.5em;
    margin-bottom: 10px;
    color: #333;
}
.hobbies-box p {
    font-size: 1em;
    color: #656363;
}
/* ------------------------- contacts -------------------- */
.contact-left{
    flex-basis: 35%;
}
.contact-right{
    flex-basis: 60%;
}
.contact-left p{
    margin-top: 30px;
}
.row{
    margin-top: 15rem;
}
.contact-left p i{
    color: #c8ff00;
    margin-right: 15px;
    font-size: 25px;
}
.social-icons{
    margin-top: 30px;
}
.social-icons a{
    text-decoration: none;
    font-size: 25px;
    margin-right: 12px;
    color: #d5e699;
    display: inline-block;
}
.social-icons a:hover{
    color: #fff;
}
.social-icons a i:hover{
    transform: scale(1.3);
}
.contact-right form{
    width: 100%;
}
form input, form textarea{
    width: 100%;
    border: 0;
    outline: none;
    background: #e3f0b7;
    padding: 15px;
    margin: 15px 0;
    color: #000;
    font-size: 18px;
    border-radius: 6px;
    caret-color: #000;
}
form .btn{
    padding: 12px 40px;
    font-size: 16px;
    margin-top: 2px;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: none;
}
form .btn:hover{
    background: #99f9fb;
    box-shadow: 0 0 1rem #f4f4f4;
}
form .btn:active{
    background: #3e8e41;
    transform: translateZ(4px);
}
.footer-icon{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding: 2rem 0;
    margin: 0;
    padding: 0;
    float: right;
    margin-right: 7.5rem;
}
.footer-icon a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: .4rem;
    background: #c8ff00;
    border-radius: .6rem;
    text-decoration: none;
}
.footer-icon a i{
    font-size: 1.8rem;
}
.copyright{
    width: 100%;
    text-align: center;
    padding: 15px 0;
    background: #656363;
    font-weight: 300;
    margin-top: 4rem;
}
.copyright i{
    color: #ff0000;
}
#msg{
    color: #fff;
    margin-top: 12px;
    display: block;
}
/* ---------------- css for small screen ---------- */
/* --------------------- nav/highlights ------------------ */
nav .fa-solid{
    display: none;
}
@media only screen and (max-width: 600px){
    #myhead{
        background-image: url(./image/bgimage2.jpg);
        margin-bottom: 0%;
        background-size: cover;
        background-position: center;
        width: 115%;
        height: 110vh;
    }
    .myheader-text{
        margin-top: 142%;
        font-size: 16px;
    }
    .myheader-text h1{
        font-size: 30px;
    }
    .myheader-text h3{
        font-size: 14px;
    }
    .myheader-text p{
        font-size: 10px;
    }
    .myheader-text a{
        font-size: 15px;
        border-radius: 50%;
        width: 30px;
        height: 30px;
        margin: 15px 0;
    }
    .myheader-text a:hover{
        background: #c8ff00;
        color: #beec1a;
        box-shadow: 0 0 1rem #beec1a;
        color: #000;
    }
    .D{
        font-size: 30px;
    }
    .dear{
        font-size: 15px;
    }
    .btn {
        margin: 0;
        font-size: 7px;

    }

    /* -------- nav/style icon for small screen ------ */
    nav .fa-solid{
        display: block;
        font-size: 20px;
        color: #c8ff00;
        cursor: pointer;
    }
    nav ul{
        background: #090c01;
        position: fixed;
        top: 0;
        right: -200px;
        width: 100px;
        height: 100vh;
        padding-top: 50px;
        z-index: 2;
        transition: right 0.5s;
    }
    nav ul li{
        display: block;
        margin: 20px;
    }
    nav ul .fa-solid{
        position: absolute;
        top: 2px;
        left: 25px;
    }
    /* ------------------------- about ------------------------ */
    #about{
        margin-top: 0;
        padding: 0;
        margin-top: .5rem;
        padding: 80px 0;
    }
    .row{
        margin-top: 8rem;
    }
    .sub-title{
        font-size: 37px;
    }
    .about-col1, .about-col2{
        flex-basis: 100%;
    }
    .about-col1{
        margin-left: 50px;
        margin-top: 0;
        margin-bottom: 30px;
    }
    .about-col1 img{
        display: flex;
        justify-content: center;
        width: 65%;
        border-radius: 15px;
        margin-left: 20%;
    }
    .about-col2 .sub-title{
        text-align: center;
        margin-left: 50px;
    }
    .about-col2 p{
        text-align: center;
        font-size: 15px;
        margin-left: 13%;
    }
    .tab-title{
        margin-top: 4rem;
    }
    .tab-title p{
        display: flex;
        justify-content: center;
        margin-right: 25px;
    }
    .about-col2 .tab-contents{
     margin-left: 12%;
     text-align: center;
    }
    .about-col2 .tab-contents:hover{
        background: #2a2b28;
        transition: .5s ease;
        border-radius: 15px;
        box-shadow:0 0 .8rem #caec4f;
    }
    .tab-title .tab-links:hover{
        color: #c8ff00;
    }
    /*--------------- portfolio/projects ------------------  */
    .portfolio{
        margin-top: 3rem;
        margin-bottom: 3rem;
    }
    .portfolio .sub-title{
        text-align: center;
        margin-left: 50px;
    }
    .portfolio-container{
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        align-items: center;
        gap: 1.5rem;
        margin-left: .8rem;
        margin-right: .8rem;
        margin-left: 60px;
    }
    .portfolio-container .portfolio-box{
        position: relative;
        border-radius: 1rem;
        box-shadow: 0 0 .8rem #676b58;
        overflow: hidden;
        display: flex;
    }
    .portfolio-box img{
        width: 150%;
        transition: .5s ease;
    }
    .portfolio-box:hover img{
        transform: scale(1.1);
    }
    .portfolio-box .portfolio-layer{
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(rgba(0, 0, 0, -1), #beec1a);
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        text-align: center;
        padding: 0 1rem;
        transform: translateY(100%);
        transition: .5s ease;
    }
    .portfolio-box:hover .portfolio-layer{
        transform: translateY(0);
    }
    .portfolio-layer h4{
        font-size: .6rem;
    }
    .portfolio-layer p{
        font-size: .3rem;
        margin: .4rem 0 1;
        color: #000;
    }
    .portfolio-layer a{
        text-decoration: none;
        display: inline-flex;
        justify-content: center;
        align-items: center;
        width: .6rem;
        height: .6rem;
        background: #fff;
        border-radius: 20%;
        margin-top: .1rem;
    }
    .portfolio-layer a i{
        font-size: .5rem;
        color: #272722;
    }
    /* ------------------- Portfolio/certificates ----------- */
    .heading .sub-title{
        display: flex;
        justify-content: center;
        margin-top: 12rem;
        cursor: pointer;
        margin-left: 50px;
    }
    .certificate-gallery{
        margin-top: 4rem;
        margin-left: 1rem;
        margin-right: 1rem;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        margin-left: 60px;
    }
    .certificate-box{
        position: relative;
        border-radius: 10px;
        overflow: hidden;
        display: flex;
        grid-template-rows: 1fr auto;
        align-items: center;
        border: .1rem solid #000;
        box-shadow:0 0 .6rem #caec4f;
    }
    .certificat-img{
        display: flex;
        align-items: center;
        justify-content: 100%;
        height: 100%;
        width: 100%;
    }
    .certificat-img img{
        width: 100%;
        opacity: .5s;
        height: 100%;
        transition: .5s;
    }
    .certificate-content{
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100%;
        opacity: 0;
        background: linear-gradient(rgba(0,0,0,.4), #090c01);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        text-align: center;
        transition: 0.5s;
        padding: 0 2rem;
    }
    .certificate-content:hover{
        transform: scale(1.2);
    }
    .certificate-box:hover .certificate-content{
        opacity: 1;
    }
    .certificate-content h3{
        padding-top: .8rem;
        font-size: .4rem;
        font-weight: 400;
    }
    .certificate-content p{
        font-size: .3rem;
        margin: 5px 0 15px 0;
    }
    /* --------------------- Portfolio/Hobbies --------------- */
    .hobbies-container {
        display: flex;
        justify-content: space-around;
        max-width: 900px;
        margin: 0 auto;
        margin-left: 2rem;
        margin-right: 2rem;
        margin-left: 60px;
    }
    .hobbies .sub-title{
        margin-left: 50px;
    }
    .hobbies-box {
        width: 100%;
        text-align: center;
        padding: 10px;
        background-color: #fff;
        border-radius: 6px;
        box-shadow: 0 0 1rem rgba(0, 0, 0, 0.8);
        transition: transform 0.3s ease-in-out;
    }
    .hobbies-box:hover {
        transform: scale(1.05);
    }
    .hobbies-box i {
        font-size: 1rem;
        color: #c8ff00;
        margin-bottom: 10px;
    }
    .hobbies-box h3 {
        font-size: .8em;
        margin-bottom: 10px;
        color: #2d2c2c;
    }
    .hobbies-box p {
        font-size: .6rem;
        color: #434141;
    }
    /* ------------------------- contacts -------------------- */
    .contact-left, .contact-right{
        flex-basis: 100%;
    }
    .contact-left .btn{
        margin-top: 15px;
    }
    .contact-left p{
        font-size: 14px;
    }
    .contact-right form{
        margin-top: 40px;
    }
    form .btn{
        padding: 10px 22px;
        font-size: 10px;
    }
    .copyright{
        font-size: 12px;
        padding-top: 6px;
        width: 115%;
    }
    .footer-icon{
        float: left;
        margin-left: 2.6rem;
        margin-top: 1.8rem;
    }
    .footer-icon a i{
        font-size: 1rem;
    }
}