:root {
    --nav-bg-color: #2c637c;
    --nav-li-color: #ffff;
    --intro-heading-color: #004D99;
    --cv-download-bg-color: #62b0a5;
    --cv-download-color: #EDF7FA;
    --certi-div-bg-color: #daf5f0;
    --certi-card-bg-color: #ffff;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    max-width: 1630px;
    min-width: 280px;
    /* background-color: rgb(250, 255, 239); */
    background-color: #E1FFFF;
}

main {
    margin: 0;
    padding: 0;
}

nav {
    width: 100%;
    height: 50px;
    margin: 0;
    background-color: var(--nav-bg-color);
    color: white;
    display: flex;
    position: sticky;
    top: 0;
    z-index: 2;
    box-shadow: 5px 0px 10px rgb(255,255,255);
}

.navUL {
    display: flex;
    list-style: none;
    align-items: right;
    position: absolute;
    right: 20px;
}

.navLi {
    font-family: Georgia, 'Times New Roman', Times, serif;
    font-size: 1em;
    color: var(--nav-li-color);
}

.navLi a:hover {
    background-color: #0e2eac;
}

a {
    text-decoration: none;
    color: black;
}

.navLi a {
    color: white;
    margin: 10px;
    padding: 15px;
}

.nav-menu {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 40px;
    padding: 5px;
}

.nav-menu-ul {
    list-style: none;
    margin: 0;
}

.nav-menu-li {
    padding: 20px;
    padding-left: 0px;
}

.nav-menu-li a {
    color: white;
}

.nav-menu-li a:hover {
    text-decoration: underline;
    font-weight: bold;
}

.nav-menu-ul {
    position: absolute;
    top: 0;
    right: 0;
    background-color: #242424;
    height: 99vh;
    width: 130px;
    border: 2px solid rgb(1, 48, 255);
    border-radius: 8px;
    overflow: auto;
}

/* Responsive Start */
@media (max-width: 680px) {
    .navUL {
        display: none;
    }

    .nav-menu-ul {
        display: none;
    }

    .nav-menu-div:hover~.nav-menu-ul,
    .nav-menu-ul:hover {
        display: list-item;
    }
}

@media (min-width: 680.1px) {
    .nav-menu-div {
        display: none;
    }

    .nav-menu-ul {
        display: none;
    }
}

/* Responsive End */

.intro {
    width: 100%;
    display: flex;
    flex-direction: row;
}

.introAllText {
    width: 60%;
    margin-top: 30px;
    margin-left: 80px;
    margin-right: 30px;
    margin-bottom: 40px;
}

.introheading {
    color: var(--intro-heading-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-weight: bolder;
    font-size: 30px;
    text-align: left;
}

.introText-div {
    width: 100%;
}

.introText {
    width: 100%;
    text-align: justify;
    line-height: 1.5em;
}

.profilepicdiv {
    margin-top: 40px;
    width: 40%;
    display: flex;
    align-content: center;
    justify-content: center;
}

.profilepic {
    border-radius: 300px;
    width: 250px;
    height: 250px;
    box-shadow: -10px 10px 0px #EDF7FA;
}

.cvDownload-button {
    background-color: var(--cv-download-bg-color);
    color: var(--cv-download-color);
    border: none;
    border-radius: 5px;
    width: 200px;
    height: 40px;
    margin-top: 5px;
    font-size: 1.3em;
    text-shadow: 1px 1px 1px black;
}

.cvDownload-button:hover {
    color: white;
    background: #0D1127;
    border: 2px solid #ffffff;
}

/* certi section start */

.certi-div {
    width: 100%;
    height: auto;
    background-color: var(--certi-div-bg-color);
}

.cer-head {
    padding-top: 10px;
    font-size: 25px;
    text-align: center;
    flex-direction: row;
}

.cer-head p {
    margin: 0;
    /* margin-left: 2.5%; */
}

.cer-cards-div {
    width: 100%;
    height: auto;
    margin: 0 auto;
    display: flex;
    flex-direction: row;
    justify-content: center;
}

.cer-card-1,
.cer-card-2 {
    width: 50%;
    height: auto;
    margin: 2%;
    background-color: var(--certi-card-bg-color);
    border-radius: 20px;
}

.certi-logo-div {
    width: 100%;
    height: 60px;
    display: flex;
    justify-content: space-between;
}

.certi-logo,
.certi-provider {
    width: auto;
    height: 100%;
}

.certi-logo img,
.certi-provider img {
    margin: 10px;
    width: auto;
    height: 70%;
    padding: 10px;
}

.cer-name {
    color: #21243D;
    font-size: 20px;
    font-weight: bold;
    padding: 5px 20px;
}

.cer-date {
    margin-left: 20px;
    font-weight: bold;
    color: #069299;
}

.cer-description-1,
.cer-description-2 {
    color: #21243D;
    margin-left: 20px;
    margin-right: 20px;
    line-height: 1.5em;
    text-align: justify;
}

.highlightText {
    text-align: center;
    font-size: 50px;
    font-weight: bold;
    background: linear-gradient(to right, rgb(29, 198, 29), rgb(29, 198, 29), red, blue, blue);
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.all-project-card-div {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.project-card-div {
    width: 250px;
    height: auto;
    border-radius: 20px;
    text-align: center;
    margin: 5%;
    box-shadow: 0px 2px 2px rgb(0, 119, 138);
    background-color: rgb(255,255,255);
}

.project-card-div:hover {
    border: 1px solid brown;
}

.project-image {
    width: 100%;
    height: 220px;
    border-radius: 20px;
    border: none;
    box-shadow: 0px 3px 4px rgb(0, 119, 138);
}

.project-heading {
    font-weight: bold;
    font-size: 1.1em;
    padding: 5px;
}

.project-description {
    text-align: justify;
    margin: 10px;
    padding: 5px;
}

footer {
    width: 100%;
    height: auto;
    margin-top: 20px;
}

.social-icon-div {
    align-content: center;
    text-align: center;
    margin-top: 50px;
}

.social-icon {
    width: 30px;
    height: 30px;
    margin: 20px;
}

.social-icon:hover {
    position: relative;
    bottom: 3px;
}

.copyright {
    text-align: center;
    font-size: larger;
}

/* web-based calculator design */

.cal-heading-div {
    margin-left: 280px;
    margin-right: 280px;
}

/* 'font-style', 'font-variant', 'font-weight', 'font-size', 'line-height', and 'font-family', */
.cal-heading {
    font-weight: bold;
    font-size: 30px;
}

.calculator-div {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: row;
}

.container1,
.container2 {
    width: 270px;
    height: auto;
    border-radius: 5px;
    box-shadow: 2px 2px 10px rgb(44, 44, 44);
    margin: 40px;
}

.container1 {
    background-color: #dfe5ec;
}

.container2 {
    background-color: #32363c;
}

.cal-name1,
.cal-name2 {
    padding-top: 5px;
    padding-left: 15px;
    font-size: 20px;
    font-weight: bold;
}

.cal-name1 {
    color: #02666c;
}

.cal-name2 {
    color: #ffffff;
}

.user-input-data1,
.user-input-data2 {
    text-align: right;
    margin: 15px;
}

.user-input-data2 {
    color: white;
}

.display1,
.display2 {
    text-align: right;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    font-size: 50px;
    font-weight: bold;
    margin: 15px;
}

.display2 {
    color: white;
}

.input-keys-container1,
.input-keys-container2 {
    align-content: center;
    text-align: center;
}

.input-key1,
.input-key2 {
    width: 50px;
    height: 50px;
    margin: 5px;
    border-radius: 8px;
    border: none;
    font-weight: bold;
}

.input-key1 {
    background-color: #dfe5ec;
    box-shadow: 1px 1px 3px rgb(121, 121, 121), -2.5px -2.5px 3px white;
    font: rgb(87, 87, 87);
}

.input-key2 {
    background-color: #32363c;
    box-shadow: 1px 1px 3px rgb(0, 0, 0);
    color: white;
}

.input-key1:hover {
    background-color: white;
}

.input-key2:hover {
    background-color: rgb(93, 93, 93);
}

.function-key1 {
    color: #00a8b1;
}

.function-key2 {
    color: #ee8146;
}

.ac1,
.ac2 {
    color: red;
}

.equal1,
.equal2 {
    width: 50px;
    height: 50px;
    margin: 5px;
    border-radius: 50%;
    border: none;
    font-weight: bold;
    margin-bottom: 25px;
    color: rgb(255, 255, 255);
}

.equal1 {
    background-color: #00a8b1;
    box-shadow: 1px 1px 3px rgb(121, 121, 121), -2px -2px 8px white;
}

.equal2 {
    background-color: #ee8146;
    box-shadow: 1px 1px 3px rgb(0, 0, 0);
}

.equal1:hover {
    color: #00a8b1;
    background-color: white;
}

.equal2:hover {
    color: #00a8b1;
    background-color: white;
}

.contact-main {
    margin: 0px;
    background: url('./images/contactbg.svg');
    background-repeat: no-repeat;
}

.contact-main {
    text-align: center;
    color: white;
}

.contact-main .h1-1 {
    padding: 100px;
}

.contact-main .h1-2 {
    padding-bottom: 100px;
}

@media (max-width: 768px) {
    .profilepic {
        width: 200px;
        height: 200px;
    }

    .profilepicdiv{
        margin: 0 auto;
        margin-top: 10px;
        width: 90%;
    }

    .introheading {
        text-align: center;
        font-size: 30px;
    }

    .intro {
        flex-direction: column-reverse;
    }

    .introAllText {
        width: 90%;
        margin: 5%;
        align-content: center;

    }

    .cvDownload-div {
        display: flex;
        justify-content: center;
    }

    .cer-cards-div {
        /* margin: 0; */
        display: flex;
        flex-direction: column;
        overflow: auto;

    }

    .cer-card-1,
    .cer-card-2 {
        width: 100%;
        /* for responsive */
        max-width: 90%;
        height: auto;
        margin: 0 auto;
        background-color: var(--certi-card-bg-color);
        margin: 20px;
    }

    .highlightText {
        font-size: 30px;
    }
}

.skills-intro-div {
    margin: 0 auto;
    padding: 0;
    width: 100%;
    height: 280px;
    background-image: url(./images/services-background.png);
    background-color: rgba(0, 0, 0, 0.9);
    background-size: 100% 100%;
    display: flex;
    align-items: center;
}

.skills-intro-head {
    width: 100%;
    text-align: center;
    font-size: 55px;
    font-weight: bold;
    color: white;
    text-shadow: 2px 2px 3px rgb(78, 248, 66);
}

.skills-list-div,
.skills-lists-logo-div {
    width: 100%;
    position: relative;
    z-index: 1;
    bottom: 35px;
}

.skills-ul,
.skills-lists-logo-div {
    display: flex;
    list-style-type: none;
    justify-content: space-around;
    padding: 0;
}

.skills-ul li {
    background-color: #2C6E7C;
    border: 3px solid rgb(255, 255, 255);
}

.skills-lists-logo-div img {
    height: 50px;
    width: 50px;
    background-color: rgb(255, 255, 255);
    border: 3px solid #2C6E7C;
}

.skills-ul li,
.skills-lists-logo-div img {
    border-radius: 15px;
    padding: 10px;
}

.skills-ul li a {
    color: rgb(255, 255, 255);
}

.all-skills-container {
    width: 85%;
    margin-left: 5%;
    /* margin-right: 5%; */
    gap: 10%;
}

.skills-div {
    width: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 10px;
    gap: 10px;
    border-radius: 20px;
    border: 2px solid rgb(207, 207, 255);
    margin-bottom: 25px;
    background-color: rgb(255,255,255);
}

.skills-div-even {
    flex-direction: row-reverse;
    gap: 30px;
}

@media (min-width: 680px) {
    .skills-lists-logo-div {
        display: none;
    }
}

.skills-heading {
    color: #0e2eac;
    font-size: 30px;
    margin: 0;
    font-weight: bold;
}

.skills-all-text-div {
    width: 60%;
    height: auto;
}

.skills-all-text-div p {
    line-height: 1.5em;
    text-align: justify;
}

.skills-img-div {
    width: 40%;
    height: auto;
}

.skills-img {
    width: 100%;
    height: auto;
}

.skills-field-heading {
    width: 47px;
    padding-left: 5px;
    border: none;
    border-radius: 5px;
    color: rgb(255, 255, 255);
    background-color: #02666c;
    margin-top: 10px;
    margin-bottom: 0px;
    font-weight: bold;
}

.skills-all-text-div hr {
    margin-left: 4px;
    position: relative;
    bottom: 1.5px;
    opacity: 0.2;
    border-color: var(--nav-bg-color);
}

.skills-field-ul {
    list-style: none;
    padding-left: 0;
    line-height: 30px;
}

/* .skills-field-ul li::before {
    content: "> ";
    color: #000;
    font-weight: bold;
    margin-right: 5px;
} */

.skills-field-ul li {
    list-style: square;
    list-style-position: outside;
    margin-left: 20px;
}

@media (max-width: 500px) {
    .introheading {
        text-align: center;
        font-size: 22px;
    }

    .skills-div {
        flex-direction: column-reverse;
        gap: 5px;
    }

    .skills-div-even {
        display: flex;
        flex-direction: column-reverse;
    }

    .skills-all-text-div {
        width: 100%;
    }
}

@media (max-width: 680px) {
    .skills-intro-div {
        height: 190px;
    }

    .skills-intro-head {
        font-size: 40px;
    }

    .skills-list-div {
        display: none;
    }

    .skills-lists-logo-div {
        width: 100%;
        text-align: center;
    }

    .skills-lists-logo-div img {
        height: 30px;
        width: 30px;
        background-color: rgb(255, 255, 255);
        border: 3px solid #2C6E7C;
    }
}

/* Contact Page Style Start */

.contact-container {
    /* background-color: rgb(246, 246, 246); */
    background-color: #E1FFFF;
}

.contact-container h2{
    margin: 0;
    text-align: center;
    padding: 10px;
    font-size: 25px;
    font-weight: bold;
    text-align: center;
    color: var(--nav-bg-color);
    line-height: 50px;
    /* background-color: green; */
}

.contact-section {
    width: 100%;
    height: auto;
    /* background-color: rgb(96, 96, 244); */
    display: flex;
    flex-direction: row;
}

hr{
    margin: 0;
    border: 1px solid rgb(106, 106, 106);
}

.contact-form-div{
    width: 50%;
    height: auto;
    /* margin: 20px 40px; */
    margin: 10px 25% 0px 25%;
    padding: 0;
}

.contact-form-div form input,
.contact-form-div textarea, button{
    background-color: white;
    width: 100%;
    height: 40px;
    outline: none;
    margin: 10px;
    border: 1px solid blue;
    border-radius: 10px;
    box-shadow: 2px 2px 2px rgb(9, 95, 35);
    font-size: 18px;
}

.contact-form-div form input:focus, 
.contact-form-div form textarea:focus {
    position: relative;
    bottom: 5px;
}

.contact-form-div textarea {
    height: 70px;
}

button {
    width: 100%;
    border-radius: 25px;
    background-color: var(--nav-bg-color);
    color: white;
}

.contact-info-div h5 {
    color: #2C6E7C;
    display: inline;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}



/* Contact Page Style End */