:root{
    --main-color:#ff9800;
}
a{
    text-decoration: none;
}
*{
    box-sizing: border-box;
}
.clearfix{
    clear: both;
}
.container{
    margin: auto;
    padding-left: 15px;
    padding-right: 15px;
}
/* media  */
@media (min-width: 576px) {
    .container-sm, .container {
        max-width: 540px;
    }
}
@media (min-width: 768px) {
    .container-md, .container-sm, .container {
        max-width: 720px;
    }
}
@media (min-width: 992px) {
    .container-lg, .container-md, .container-sm, .container {
        max-width: 960px;
    }
}
@media (min-width: 1200px) {
    .container-xl, .container-lg, .container-md, .container-sm, .container {
        max-width: 1140px;
    }
}
@media (min-width: 1400px) {
    .container-xxl, .container-xl, .container-lg, .container-md, .container-sm, .container {
        max-width: 1320px;
    }
}
/* end media  */

.up-btn{
    position: fixed;
    z-index: 20;
    right: 10px;
    bottom: 15px;
    cursor: pointer;
    width: 35px;
    height: 35px;
    border-radius: 7px;
    display: none;
    box-shadow: 4px 4px 3px 0px black;

}
.up-btn i{
    color: var(--main-color);
    font-weight: bold;
    font-size: 20px;
    position: relative;
    animation-name: up-down-btn;
    animation-duration: 2s;
    animation-iteration-count: infinite;
}
@keyframes up-down-btn {
    0%, 100% {
        top:0
    }
    50%{
        top: 6px
    }
}

/* start settings-box */
.settings-box{
    position: fixed;
    z-index: 20;
    left: -200px;
    top: 0;
    background-color: white;
    height: 100%;
    width: 200px;
    transition: 0.3s;
    border: 1px solid #eee;
}
.settings-box.open{
    left: 0;
}
.settings-box .toggle-settings{
    position: absolute;
    right: -33px;
    top: 100px;
    background-color: white;
    text-align: center;
    cursor: pointer;
    transition: 0.3s;
    border-radius: 0 8px 8px 0;
    border: 1px solid;
    border-color: #eee #eee #eee transparent ;
}
.settings-box .toggle-settings:hover{
    text-shadow: 0px 0px 1px black;
}
.settings-box .toggle-settings .icon{
    padding: 8px 0;
    width: 30px;
}
.settings-box .settings-container .option-box{
    padding: 20px;
    text-align: center;
    background-color: rgb(236, 236, 236);
    margin: 10px;
}
.settings-box .settings-container .option-box h4{
    margin: 0;
    color: rgb(0, 0, 0);
    font-weight: bold;
    font-size: 20px;
}
.settings-box .option-box .colors-list{
    list-style: none;
    text-align: center;
    padding: 0;
    border-top: 1px solid black;
    margin-bottom: 0;
}
.settings-box .option-box .colors-list li{
    margin-top: 15px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    opacity: .3;
    display: inline-block;
}
.settings-box .option-box .colors-list li.active{
    opacity: 1;
    border: 2px solid black;
}
.settings-box .option-box .colors-list li:first-child{
    background-color: #ff9800;
}
.settings-box .option-box .colors-list li:nth-child(2){
    background-color: #e91e63;
}
.settings-box .option-box .colors-list li:nth-child(3){
    background-color: #009688;
}
.settings-box .option-box .colors-list li:nth-child(4){
    background-color: #03a9f4;
}
.settings-box .option-box .colors-list li:nth-child(5){
    background-color: #4caf50;
}
.settings-box .option-box .btn-box {
    margin-top: 20px;
    border-top: 1px solid black;
}
.settings-box .option-box .yes,
.settings-box .option-box .no {
    width: 50px;
    background-color: var(--main-color);
    color: white;
    font-size: 14px;
    padding: 3px;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    opacity: .3;
    border: 2px solid black;
    transition: 0.4s;
    margin: 20px 8px 0;
}
.settings-box .option-box  button.active,
.settings-box .option-box  button:hover{
    opacity: 1;
}
.settings-box .reset-option{
    background-color: red;
    border: none;
    width: 178px;
    margin: 10px auto;
    display: block;
    color: white;
    font-weight: bold;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: 1s;
}
/* end settings-box */
/* start nav bullets */
.nav-bullets{
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    z-index: 5;
}
.nav-bullets .bullet{
    width: 17px;
    height: 17px;
    border: 3px solid var(--main-color);
    margin: 15px auto;
    border-radius: 50%;
    cursor: pointer;
    position: relative;
    transition: 0.5s;
}
.nav-bullets .bullet:hover {
    background-color: var(--main-color);
}
.nav-bullets .bullet:hover .tooltip{
    display: block;
}
.nav-bullets .bullet .tooltip{
    background-color: var(--main-color);
    width: 110px;
    color: white;
    padding: 8px 10px;
    position: absolute;
    right: 30px;
    top: -10px;
    text-align: center;
    cursor: default;
    pointer-events: none;
    display: none;
}
.nav-bullets .bullet .tooltip::before{
    content: '';
    border-style: solid;
    border-width: 10px;
    border-color: transparent transparent transparent var(--main-color);
    height: 0;
    width: 0;
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
}

/* end nav bullets */

/* start landing page */
.landing-page{
    min-height: 100vh;
    background-image: url(../imgs/1.jpg);
    background-size: cover;
    position: relative;
}
.landing-page .overlay{
    position: absolute;
    background-color: #00000047;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}
.landing-page .header-area{
    position: relative;
    align-items: center;
    z-index: 3;
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
}
@media (max-width: 767px) {
    .landing-page .header-area{
        padding: 25px 0;
    }
}
.landing-page .header-area .logo{
    width: 40%;
    font-weight: bold;
    font-size: 25px;
}
.landing-page .header-area .logo a{
    color: white;
    font-weight: bold;
    font-size: 25px;
}
@media (max-width: 767px) {
    .landing-page .header-area .logo{
        width: 100%;
    }
}
@media (max-width: 356px) {
    .landing-page .header-area .logo a{
        font-size: 21px;
    }
}
@media (max-width: 307px) {
    .landing-page .header-area .logo a{
        font-size: 18px;
    }
}
.links-container{
    width: 100%;
    text-align: right;
}
.landing-page .header-area .links{
    list-style: none;
    display: flex;
    justify-content: space-between;
}
@media (max-width: 767px) {
    .landing-page .header-area .links{
        display: none;
    }
    .landing-page .header-area .links.open{
        background-color: white;
        padding: 20px;
        display: block;
        position: absolute;
        left: 0;
        top: 65px;
        width: 100%;
        border-radius: 4px;
        text-align: center;
        /* font-size: 20px; */
    }
    .landing-page .header-area .links.open li a{
        color: black;
        font-size: 20px;
    }
    .landing-page .header-area .links.open li a:hover{
        letter-spacing: 3px;
        color: var(--main-color);
    }
}
.landing-page .header-area .links li a{
    font-weight: bold;
    color: white;
    font-size: 18px;
    transition: 0.3s;
}
.landing-page .header-area .links li a:hover,
.landing-page .header-area .links li a.active{
    color: var(--main-color);

}
.landing-page .itroduction-text{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50% , -50%);
    z-index: 2;
    color: white;
    text-align: center;
    width: 95%;
}
.itroduction-text h1{
    font-size: 45px;
    margin: 0 0 10px;
}
@media (max-width : 576px) {
    .landing-page .itroduction-text h1{
        font-size: 35px;
    }
}
@media (max-width : 430px) {
    .landing-page .itroduction-text h1{
        font-size: 30px;
    }
}
.landing-page .itroduction-text h1 span{
    color: var(--main-color);
}
.landing-page .itroduction-text p{
    font-size: 20px;
    line-height: 1.6;
    color: #cfcfcf;
    margin: 0;
}
@media (max-width : 576px) {
    .landing-page .itroduction-text p{
        font-size: 15px;
    }
}
@media (max-width : 430px) {
    .landing-page .itroduction-text p{
        font-size: 13px;
    }
}
.header-area .toggle-menu{
    background: none;
    border: none;
    width: 35px;
    cursor: pointer;
    display: none;
    margin-top: 6px;
    position: relative;
}
.header-area .toggle-menu.menu-active::before{
    content: '';
    border-width: 10px;
    border-style: solid;
    border-color: transparent transparent white transparent;
    position: absolute;
    bottom: -24px;
    left: 50%;
    margin-left: -10px;
    animation-name: up-down;
    animation-duration: 2s;
    animation-iteration-count: infinite;
}
@keyframes up-down {
    0% , 100%{
        bottom: -24px;
    }
    50%{
        bottom: -6px;
    }
}
@media (max-width: 767px) {
    .header-area .toggle-menu{
        display: inline-block;
    }
}
.header-area .toggle-menu:focus{
    outline: none;
}
.header-area .toggle-menu span{
    display: block;
    background-color: white;
    height: 4px;
    margin-bottom: 4px;
}
/* end landing page */
/* start about us */
.about-us{
    padding-top: 50px;
    padding-bottom: 50px;
    display: flex;
}
@media (max-width: 767px) {
    .about-us{
        display: block;
        text-align: center;
    }
}
.about-us .info-box{
    flex: 1;
    padding: 30px 0;
}
@media (max-width: 767px) {
    .about-us .info-box{
        padding: 0;
    }
}
.about-us .info-box h2{
    font-weight: bold;
    font-size: 30px;
    color: var(--main-color);
    margin: 0 0 10px;
}
.about-us .info-box p{
    line-height: 1.8;
    color: #777;
    margin: 0;
}
.about-us .imge-box{
    flex: 1;
    text-align: center;
}
.about-us .imge-box img{
    width: 80%;
}
/* end about us */
/* start skills */
.skills{
    padding-top: 50px;
    padding-bottom: 50px;
    background-color: #eee;
}
.skills h2{
    font-weight: bold;
    font-size: 30px;
    color: var(--main-color);
    margin: 0 0 50px;
    text-align: center;
}
.skills .skill-box{
    background-color: #fff;
    display: flex;
    padding: 15px;
    margin-bottom: 15px;
    line-height: 25px;
}
@media (max-width: 767px) {
    .skills .skill-box{
        display: block;
    }
}
.skills .skill-box .skill-name{
    font-weight: bold;
    width: 130px;
    text-align: center;
}
@media (max-width: 767px) {
    .skills .skill-box .skill-name{
        width: 100%;
        margin-bottom: 15px;
    }
}
.skills .skill-box .skill-progress{
    height: 25px;
    width: 100% ;
    background-color: #f6f6f6;
    border-radius: 5px;
    position: relative;
    overflow: hidden;
}
.skills .skill-box .skill-progress span{
    width: 0;
    left: 0;
    background-color: var(--main-color);
    top: 0%;
    height: 100%;
    position: absolute;
    transition: 0.9s;
}
/* end skills */
/* start gallery */
.gallery{
    padding-top: 15px;
    padding-bottom: 15px;
}
.gallery h2{
    font-weight: bold;
    font-size: 30px;
    color: var(--main-color);
    margin: 0 0 50px;
    text-align: center;
}
.gallery .imges-box{
    text-align: center;
}
.gallery .imges-box img{
    width: 200px;
    height: 140px;
    padding: 3px;
    background-color: #f6f6f6;
    border: 1px solid rgb(189, 188, 188);
    margin: 5px;
    cursor: pointer;
}
.popup-overlay{
    position: fixed;
    background-color: rgba(0, 0, 0, 0.767);
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 50;
}
.popup-box{
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    border: 1px solid #ccc;
    z-index: 51;
    padding: 10px;
    width: 75%;
}
.popup-box h3{
    font-weight: bold;
    text-align: center;
    margin: 0 0 20px;
    color: var(--main-color);
    text-transform: capitalize;
    font-size: 25px;
}
.close-button{
    position: absolute;
    top: -15px;
    right: -15px;
    background-color: var(--main-color);
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    font-size: 20px;
    color: white;
    cursor: pointer;
    font-weight: bold;
    font-family: Arial, tahoma;
    border-radius: 10px 10px 10px 0;
}
.popup-box img{
    max-width: 100%;
}

/* end gallery */
/* start timeline */
.timeline{
        padding-top: 50px;
        padding-bottom: 50px;
        background-color: #eee;
}
.timeline .timeline-content{
    overflow: hidden;
    position: relative;
}
.timeline .timeline-content::before{
    content: '';
    width: 2px;
    height: 100%;
    background-color: var(--main-color);
    position: absolute;
    left: 50%;
    margin-left: -1px;
    top: 0;
}
.timeline .timeline-content .year{
    margin: 20px auto;
    width: 50px;
    background-color: var(--main-color);
    position: relative;
    z-index: 2;
    text-align: center;
    border-radius: 4px;
    color: white;
    padding: 2px 5px;
    font-weight: bold;
}
.timeline .timeline-content .left,
.timeline .timeline-content .right{
    width: calc(50% - 25px);
    margin-bottom: 40px;
    position: relative;
}
@media (max-width: 767px) {
    .timeline .timeline-content .left,
    .timeline .timeline-content .right{
        width: 100%;
        margin-bottom: 20px;
    }
}
.timeline .timeline-content .left{
    float: left;
}
.timeline .timeline-content .left::before{
    right: -35px;
}
.timeline .timeline-content .right{
    float: right;
}
.timeline .timeline-content .right::before{
    left: -35px;

}
.timeline .timeline-content .right::before,
.timeline .timeline-content .left::before{
    content: '';
    width: 14px;
    height: 14px;
    background-color: #eee;
    border: 3px solid var(--main-color);
    position: absolute;
    border-radius: 50%;
    top: 20px;
}
@media (max-width: 767px) {
    .timeline .timeline-content .right::before,
    .timeline .timeline-content .left::before{
        display: none;
    }
}
.timeline .timeline-content .content{
    padding: 20px;
    background-color: white;
}
.timeline .timeline-content h3{
    font-weight: bold;
    color: var(--main-color);
    margin: 0 0 10px ;
}
.timeline .timeline-content p{
    margin: 0;
    color: #666;
    line-height: 1.6;
}
.timeline .timeline-content .left .content::before{
    content: '';
    border-style: solid;
    border-width: 10px;
    border-color: transparent transparent transparent white;
    height: 0;
    width: 0;
    position: absolute;
    right: -20px;
    top: 20px;
}
.timeline .timeline-content .right .content::before{
    content: '';
    border-style: solid;
    border-width: 10px;
    border-color: transparent white transparent transparent ;
    height: 0;
    width: 0;
    position: absolute;
    left: -20px;
    top: 20px;
}
@media (max-width: 767px) {
    .timeline .timeline-content .left .content::before,
    .timeline .timeline-content .right .content::before{
        display: none;
    }
}
/* end timeline */
/* start features */
.features{
    padding-top: 80px;
    padding-bottom: 80px;
}
.features h2{
    font-weight: bold;
    font-size: 30px;
    color: var(--main-color);
    margin: 0 0 60px;
    text-align: center;
}
.features .feat-box{
    width: calc(100% / 3);
    float: left;
    text-align: center;
    margin-bottom: 40px;
}
@media (max-width: 991px) {
    .features .feat-box{
        width: calc(100% / 2);
    }
}
@media (max-width: 575px) {
    .features .feat-box{
        width: 100%
    }
}
.features .feat-box img{
    width: 100px;
    border-radius: 10px;
}
.features .feat-box h4{
    font-size: 22px;
    margin: 15px 0 40px;
    position: relative;
}
.features .feat-box h4::before{
    content: '';
    width: 40px;
    height: 4px;
    background-color: var(--main-color);
    position: absolute;
    left: 50%;
    margin-left: -20px;
    bottom: -22px;
}
.features .feat-box p{
    width: 80%;
    margin: 0 auto;
    line-height: 1.7;
    color: #706f6f;
}
/* end features */
/* start testimonials */
.testimonials{
    position: relative;
    padding-top: 80px;
    padding-bottom: 80px;
    overflow: hidden;
}
.testimonials::before{
    content: '';
    width: 50%;
    position: absolute;
    left: 0;
    top: 0;
    background-color: var(--main-color);
    height: 100%;
}
.testimonials::after{
    content: '';
    width: 50%;
    position: absolute;
    right: 0;
    top: 0;
    background-color: black;
    height: 100%;
}
.testimonials h2{
    font-weight: bold;
    font-size: 30px;
    color: white;
    margin: 0 0 30px;
    text-align: left;
    position: relative;
    z-index: 2;
}
@media (max-width: 991px) {
    .testimonials h2{
        text-align: center ;
    }
}
.testimonials .ts-box{
    position: relative;
    z-index: 2;
    width: calc(98% / 3);
    float: left;
    background-color: white;
    padding: 20px;
    border-radius: 3px;
}
@media (max-width: 767px) {
    .testimonials .ts-box{
        width: 100%;
        float: none;
        margin-bottom: 15px;
    }
}
.testimonials .ts-box:not(:last-of-type){
    margin-right: 1%;
}
.testimonials .ts-box > p{
    margin: 0 0 20px;
    line-height: 1.5;
    font-size: 18px;
    color: #707070;
    font-style: italic;
}
.testimonials .ts-box .person-info{
    overflow: hidden;
}
@media (max-width: 991px) {
    .testimonials .ts-box .person-info{
        text-align: center;
        overflow: visible;
    }
}
.testimonials .ts-box .person-info img{
    width: 80px;
    height: 80px;
    float: left;
    margin-right: 30px;
    border-radius: 10px;
}
@media (max-width : 991px) {
    .testimonials .ts-box .person-info img{
        float: none;
        margin-right: 0;
    }
}
.testimonials .ts-box .person-info h4{
    margin: 14px 0 10px;
}
.testimonials .ts-box .person-info p{
    margin: 15px 0 ;
    color: #707070;
}
/* end testimonials */
/* start contact us */
.contact{
    background-image: url(../imgs/contact.jpeg);
    background-size: cover;
    padding-top: 80px;
    padding-bottom: 80px;
    position: relative;
}
.contact .overlay{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, .4);
}
.contact .container{
    position: relative;
    z-index: 2;
}
.contact h2{
    font-weight: bold;
    font-size: 30px;
    color: var(--main-color);
    margin: 0 0 60px;
    text-align: center;
}
.contact form{
    overflow: hidden;
    max-width: 800px;
    margin: auto;
}
.contact form .left{
    float: left;
    width: 49%;
}
.contact form .right{
    float: right;
    width: 49%;
}
@media (max-width : 767px) {
    .contact form .left ,
    .contact form .right{
        float: none;
        width: 100%;
    }

}
.contact form input:not([type='submit']),
.contact form textarea{
    display: block;
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    background-color: rgba(218, 218, 218, 0.19);
}
.contact form input:not([type='submit']):focus,
.contact form textarea:focus{
    outline: 1px solid var(--main-color);
}
.contact form input{
    height: 40px;
}
.contact form textarea{
    height: 150px;
}
.contact form input[type='submit']{
    padding: 10px;
    width: 100%;
    border-color: transparent;
    background-color: var(--main-color);
    color: white;
    cursor: pointer;
}
.contact form textarea:focus::placeholder,
.contact form input:not([type='submit']):focus::placeholder{
    opacity: 0;
    transition: .3s;
}
/* end contact us */
/* start footer */
.footer{
    background-color: #333;
    color: white;
    padding: 20px;
    text-align: center;
    font-weight: bold;
}
.footer a{
    color: var(--main-color);
    font-size: 20px;
}
/* end footer */