/*  ---    global rule  ---  */
*{
    padding: 0;
    margin: 0;
    list-style: none;
    box-sizing: border-box;
}
body{
    font-family: Arial, Helvetica, sans-serif;
}
.container{
    padding: 0 40px;
    margin: auto;
}
/*   --- variables  ---  */
:root{
    --main-color:#8E24AA;
    --trans:0.3s;
    --line-height:1.8;
    --pad:50px;
    --font-size:30px;
    --p-color:#888;
}
/*    --  landing   --  */
.landing{
    position: relative;
    min-height: 100vh;
}
.landing .images img,.landing .overlay{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}
.landing .images img{
    z-index: -1;
    opacity: 0;
    transition: var(--trans) linear opacity;
}
.landing .images img.active{
    opacity: 1;
}
.landing .overlay{
    z-index: 1;
    background-color: #000000e6;
}
.landing .head {
    z-index: 6;
    position: relative;
    color: white;
}
.landing .head .container{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 15px 20px;
    width: 100%;
    position: relative;
}
.landing .head.show{
    position: fixed;
    width: 100%;
    background-color: #333;
}
.landing .head .logo{
    font-size: 20px;
    font-weight: bold;
}
.landing .head ul {
    display: flex;
}
.landing .head ul a{
    text-decoration: none;
    padding: 15px;
    color: white;
    font-size: 15px;
    transition: var(--trans);
}
.landing .head ul a:hover{
    color: var(--main-color);
}
.landing .head .link-container{
    display: flex;
    justify-content: flex-end;
}
.landing .head .link-container .toggle-menu{
    border: none;
    background-color: transparent;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    position: relative;
    display: none;
}
.landing .head .link-container .toggle-menu.open::after{
    content: "";
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    border-color: transparent transparent white transparent;
    border-style: solid;
    border-width: 10px;
    pointer-events: none;
}
.landing .link-container .toggle-menu:hover span,.landing .link-container .toggle-menu.open span{
    background-color: var(--main-color);
}
.landing .head .toggle-menu span{
    width: 35px;
    height: 4px;
    background-color: #eee;
    transition: var(--trans);
}
@media (max-width:991px) {
    .landing .head .link-container .toggle-menu{
        display: flex;
    }
    .landing .head .link-container ul{
        display: none;
    }
}
.landing .link-container ul.small-menu{
    display: flex;
    flex-direction: column;
    background-color: white;
    padding: 10px 0;
    width: 300px;
    position: absolute;
    top: 100%;
    right: 0;
    border-radius: 5px;
}
.landing .link-container ul.small-menu a{
    color: var(--main-color);
    font-weight: bold;
    padding: 10px;
    display: inline-block;
    width: 100%;
    transition: var(--trans);
}
.landing .link-container ul.small-menu a:hover{
    background-color: #eee;
    padding-left: 15px;
}
.landing .land-text{
    z-index: 4;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
}
.landing .land-text h3{
    margin: 10px 0;
    font-size: 35px;
}
@media (max-width:767px) {
    .landing .land-text{
        width: 90%;
    }
    .landing .land-text h3{
        font-size: 25px;
    }
}
.land-text h3 span{
    color: var(--main-color);
}
.landing .land-text p{
    line-height: var(--line-height);
    font-size: 15px;
}
/*    --  setting   -- */
.setting{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    display: flex;
    flex-flow: row-reverse;
    height: 100%;
    transform: translateX(calc(-230px));   /* 200 is data width */
    transition: var(--trans);
}
.setting.active{
    transform: translateX(0);
}
.setting .gear{
    padding: 10px;
    background-color: white;
    cursor: pointer;
    height: 36px;
    width: 36px;
    position: relative;
    top: 15%;
}
.setting .data{
    background-color: white;
    width: 230px;
}
.setting .data>*:not(:last-child){
    padding: 15px 10px;
    background-color: #eee;
    margin: 10px;
    border-radius: 10px;
    box-shadow: 1px 1px 3px 0;
}
.setting .data>*:not(:last-child)>*:not(:last-child){
    margin-bottom: 10px;
}
.setting .data h3{
    font-size: 18px;
    font-weight: bold;
}
/*   - color setting & some background  -  */
.setting .color .spans,.setting .bool,.setting .background .select{
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
    justify-content: center;
}
.setting .color .spans span,.setting .background .select li{
    width: 22px;
    height: 22px;
    cursor: pointer;
    border-radius: 50%;
    opacity: 0.5;
    user-select: none;
}
.setting .color .spans span:hover,.setting .background .select li:hover,.setting .bool button.active,.setting .bool button:hover{
    opacity: 1;
} 
.setting .color .spans span.active,.setting .background .select li.active{
    opacity: 1;
    border: 3px solid white;
}

/* ---- background setting ----  */
.setting .bool button{
    border: none;
    padding: 5px 15px;
    background-color: #009688;
    color: white;
    cursor: pointer;
    border-radius: 5px;
    opacity: 0.5;
    transition: var(--trans);
    user-select: none;
}
.setting .background .select li{
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    background-color: #00897B;
    padding: 12px 12px 10px;
    font-size: 18px;
    pointer-events:none;
}
 /*   reset   */
 .setting .reset button{
    width: calc(100% - 20px);
    margin: 0 10px; 
    background-color :  #E53935;
    opacity: 1;
}
 .setting .reset button:hover{
    background-color: #C62828;
 }
/* --------------------------- */
/*   ----  About  ---- */
.about{
    padding-top: var(--pad) ;
    padding-bottom: var(--pad) ;
}
.about .container{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
}
@media  (max-width:767px){
    .about .container{
    grid-template-columns: 1fr;
    text-align: center;
    gap: 35px;
    }
}
.about .text h2{
    margin-bottom: 15px;
    color: var(--main-color);
    font-size: var(--font-size);
    font-weight: bold;
}
.about .text p{
    line-height: var(--line-height);
    color: var(--p-color);
}
.about .image{
    display: flex;
    align-items: center;
    justify-content: center;
}
.about .image img{
    width: 175px;
    border-radius: 100px;
}
/* --------------------------- */
/*   ----  Skills  ---- */
.skills{
    background-color: #eee;
    padding-top: var(--pad);
    padding-bottom: var(--pad);
}
.skills h2{
    color: var(--main-color);
    text-align: center;
    margin-bottom: 30px;
    font-size: var(--font-size);
}
.skills .my-skills>*:not(:last-child){
    margin-bottom: 15px;
}
.skills .my-skills .item{
    padding: 15px;
    background-color: white;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.skills .my-skills .item .text{
    font-weight: bold;
    width: 100px;
    text-align: center;
}
.skills .my-skills .item .progress{
    flex: 1;
    background-color: #eee;
    height: 25px;
    border-radius: 5px;
    overflow: hidden;
    position: relative;
}
@media  (max-width:767px){
    .skills .my-skills .item{
        gap: 10px;
    }
    .skills .my-skills .item .text{
        width: 100%;
    }
}
.skills  .item .progress span{
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background-color: var(--main-color);
    opacity: 0.8;
    transition: 0.5s linear width;
}
/* --------------------------- */
/*   ----  Gallery  ---- */
.gallery{
    background-color: white;
    padding-top: var(--pad);
    padding-bottom: var(--pad);
}
.gallery h2{
    color: var(--main-color);
    text-align: center;
    margin-bottom: 30px;
    font-size: var(--font-size);
}
.gallery .my-gallery{
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}
.gallery .my-gallery img{
    width: 170px;
    cursor: pointer;
    height: 100px;
    background-color: #fafafa;
    padding: 2px;
    border: 1px solid #ccc;
}
.gallery .active{
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    padding: 15px;
    background-color: #fafafa;
    border: 1px solid #ccc;
    z-index: 1000;
}
.gallery .active h3{
    margin-bottom: 15px;
    text-align: center;
    color: var(--main-color);
    font-size: 25px;
    font-weight: bold;
}
.gallery .active img{
    max-width: 100%;
}
.gallery .active .close{
    position: absolute;
    top: -15px;
    right: -15px;
    width: 30px;
    height: 30px;
    padding: 10px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: red;
    background-color: #263238;
    font-size: 15px;
    cursor: pointer;
}
.gallery .overlay{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: black;
    z-index: 999;
    opacity: 0.7;
    display: none;
}
/* --------------------------- */
/*   ----  TimeLine  ---- */
.timeline{
    background-color: #eee;
    padding-top: var(--pad);
    padding-bottom: var(--pad);
}
.timeline .content{
    padding: 20px 0;
    position: relative;
}
.timeline .content::before{
    content: "";
    position: absolute;
    top: 0;
    left: calc(50% - 1px);
    width: 2px;
    height: 100%;
    background-color: var(--main-color);
}
.timeline-unit .year{
    padding: 3px 6px;
    background-color: var(--main-color);
    color: white;
    border-radius: 5px;
    position: relative;
    left: calc(50% - 23px);
    display: inline-block;
    width: 46px;
    z-index: 4;
    margin-bottom: 15px;
}
.timeline-unit>:last-child{
    margin-bottom: 30px;
}
.timeline-unit .left,.timeline-unit .right{
    margin-bottom: 20px;
    display: flex;
    position: relative;
}
.timeline-unit .left{
    justify-content: flex-start;
}
.timeline-unit .right{
    justify-content: flex-end;
}
.timeline-unit .left::before,.timeline-unit .right::before{
    content: "";
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: white;
    border: 3px solid var(--main-color);
    left: calc(50% - 8px);
    top: 23px;
}
.timeline-unit .text{
    position: relative;
    width: calc(50% - 20px);
    background-color: white;
    padding: 15px;
}
.timeline-unit .text::after{
    content: "";
    position: absolute;
    border-style: solid;
    border-width: 10px;
    top: 20px;
}
.timeline-unit .left .text::after{
    right: -19px;
    border-color: transparent transparent transparent white;
}
.timeline-unit .right .text::after{
    left: -19px;
    border-color: transparent white transparent transparent;
}
@media (max-width:767px) {
    .timeline-unit .left::before,.timeline-unit .right::before{
        top: 0;
    }
    .timeline-unit .left,.timeline-unit .right{
        margin-bottom: 40px;
    }
    .timeline-unit .text{
        width: 100%;
        top: 25px;
    }
    .timeline-unit .left .text::after,.timeline-unit .right .text::after{
        top: -19px;
        border-color: transparent transparent white transparent ;
    }
    .timeline-unit .left .text::after{
        right: 50%;
        transform: translateX(50%);
    }
    .timeline-unit .right .text::after{
        transform: translateX(-50%);
        left: 50%;
    }
}
.timeline-unit .text h3{
    color: var(--main-color);
    margin-bottom: 10px;
    top: 20px;
}
.timeline-unit .text p{
    line-height: 1.6;
    color: var(--p-color);
    font-size: 15px;
}
/* --------------------------- */
/* -------  Features  ------- */
.feature{
    background-color: white;
    padding-top: var(--pad);
    padding-bottom: var(--pad);
}
.feature h2{
    color: var(--main-color);
    text-align: center;
    margin-bottom: 40px;
    font-size: var(--font-size);
}
.feature-cotent{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(265px, 1fr));
    width: 75%;
    gap: 30px;
    margin: auto;
}
.feature-cotent .feat{
    display: flex; 
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
}
.feature-cotent .feat .image{
    width: 65px;
    padding: 15px;
    background-color: #eee;
    border: 3px solid white;
    outline: 2px solid #eee;
    border-radius: 50%;
}
.feature-cotent .feat .image img{
    max-width: 100%;
}
.feature-cotent .feat h3{
    font-size: 22px;
    padding-bottom: 15px;
    position: relative;
}
.feature-cotent .feat h3::after{
    content: "";
    position: absolute;
    width: 30%;
    height: 2px;
    background-color: var(--main-color);
    bottom: 0;
    left: 35%;
}
.feature-cotent .feat p{
    line-height: 1.5;
    color: var(--p-color);
}
/* --------------------------- */
/* -------  Testimonial  ------- */
.testimonial{
    background-color: var(--main-color);
    padding-top: var(--pad);
    padding-bottom: var(--pad);
    position: relative;
}
.testimonial::after{
    content: "";
    position: absolute;
    background-color: #474444;
    width: 50%;
    height: 100%;
    top: 0;
    left: 50%;
    z-index: 2;
}
.testimonial .container{
    position: relative;
    z-index: 6;
}
.testimonial h3{
    font-size: 25px;
    margin-bottom: 15px;
    color: white;
}
.testimonial .test{
    display: flex;
    justify-content: center;
    gap: 15px;
}
@media (max-width:767px) {
    .testimonial .test{
        flex-wrap: wrap;
    }
    .testimonial h3{
        text-align: center;
    }
}
.testimonial .member {
    padding: 15px;
    background-color: white;
}
.testimonial .member .head{
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}
.testimonial .member .head img{
    width: 40px;
    height: 40px;
    border-radius: 50%;
}
.testimonial .member .head .name h5{
    font-size: 15px;
    margin-bottom: 6px;
}
.testimonial .member .head .name p{
    color: var(--p-color);
    font-size: 13px;
}
.testimonial .member .bottom p{
    line-height: var(--line-height);
    color: var(--p-color);
}
/* -------  Navigation  ------- */
.nav{
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    display: none;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    z-index: 100;
}
.nav.active{
    display: flex;
}
.nav-unit{
    display: flex;
    align-items: center;
    flex-direction: row-reverse;
    gap: 10px;
}
.nav-unit a{
    display: inline-block;
    width: 15px;
    height: 15px;
    background-color: #fafafa;
    border-radius: 50%;
    border: 3px solid var(--main-color);
    margin: 3px 0; /* margin top + bootom =6 + height(15)= 21 = text height */
}
.nav-unit a:hover + .text{
    display: flex;
}
.nav-unit span.text{
    padding: 5px 8px;
    background-color: var(--main-color);
    color: white;
    border-radius: 5px;
    font-size: 13px;
    width: 100px;
    height: 21px;
    position: relative;
    align-items: center;
    display: none;
    justify-content: center;
}
.nav-unit span.text::after{
    content: "";
    position: absolute;
    top: 50%;
    right: -13px;
    border-color: transparent transparent transparent var(--main-color);
    border-style: solid;
    border-width: 7px;
    margin-top: -7px;
}

/* -------  Contact  ------- */
.contact{
    padding-top: 80px;
    padding-bottom: 80px;
    background-image: url(../img/contact.jpg);
    background-size: cover;
    min-height: 500px;
    position: relative;
}
.contact .overlay{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: black;
    z-index: 2;
    opacity: 0.7;
}
.contact .container{
    z-index: 4;
    position: relative;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
.contact h3{
    width: 100%;
    color: var(--main-color);
    text-align: center;
    margin-bottom: 40px;
    font-size: var(--font-size);
    font-weight: bold;
}
.contact .content{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    width: 800px;
}
.contact .left,.contact .right{
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.contact input,.contact .right textarea{   
    outline: none;
    padding: 5px 8px;
    border-radius: 3px;
    border: none;
    caret-color: var(--main-color);
}
.contact .left input,.contact .right textarea{   
    background-color: #ccc;
    border: 1px solid #666;
    color: var(--main-color);
}
.contact input:not([type="submit"]):focus,.contact .right textarea:focus{
    outline: 1px solid var(--main-color);
}
.contact input:focus::-moz-input-placeholder,.contact .right textarea:focus::-moz-input-placeholder{
    opacity: 0;
    transition: var(--trans);
}
.contact input:focus::-webkit-input-placeholder,.contact .right textarea:focus::-webkit-input-placeholder{
    opacity: 0;
    transition: var(--trans);
}
.contact input:focus::-ms-input-placeholder,.contact .right textarea:focus::-ms-input-placeholder{
    opacity: 0;
    transition: var(--trans);
}
.contact  input::placeholder{
    color: var(--p-color);
    font-size: 15px;
}
.contact .right textarea{
    flex: 1;
}
@media (max-width:567px) {
  
    .contact .right textarea{
        min-height: 120px;
    }  .contact .content{
        grid-template-columns: 1fr;
    }
}
.contact .right input[type="submit"]{
    color: white;
    background-color: #1565C0;
    opacity: 0.9;
    cursor: pointer;
}
.contact .right input[type="submit"]:hover{
background-color: #0D47A1;
}
/* --------------------------- */
/*   -- footer  --  */
footer{
    padding: 20px;
    background-color: #333;
}
footer p{
    color: white;
    font-weight: bold;
    text-align: center;
}
footer p span{
    color: var(--main-color);
    font-size: 20px;
}
/* --------------------------- */
/*  -  responsive  -  */
@media (min-width:576px) {
    .container{
        max-width: 550px;
    }
}
@media (min-width:768px) {
    .container{
        max-width: 720px;
    }
}
@media (min-width:992px) {
    .container{
        max-width: 950px;
    }
}
@media (min-width:1200px) {
    .container{
        max-width: 1140px;
    }
}
/* --------------------------- */