:root {
    --color: #d1d8e0;
    --scolor: #17D778;
    --bg-color: #1A181E;
    --secondary: #2c303a;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Maven Pro', sans-serif !important;
    scroll-behavior: smooth;
    background-color: var(--bg-color);
}

h1 {
    font-size: 2.8em;
    margin: 24px 0;
    /* color: var(--secondary); */
}
p {
    color: #fff ;
}
hr {
    background-color: #d1d8e04d;
}
.home {
    height: 100vh;
}

.color-primary {
    color: #17D778;
}
.s-color {
    color: #d1d8e0;
}
.bg-color {
    background-color: #17d777c9;
}

.name {
    color: var(--color);
    transition: all 0.5s;
    font-size: 20px;
    font-weight: 500;
}
.name:hover{
    color: #17D778;
}

.nav-bar{
    background-color: #1A181E !important;
    /* border-bottom: #17D778 solid 2px; */
}

.nav-text {
    color: var(--color);
    font-size: 15px;
    text-decoration: none;
    position: relative;
    padding-bottom: 5px;
    transition: color 0.3s ease 0s;
}

.nav-text:after {

    bottom: -4px;
    content: "";
    display: block;
    height: 2.5px;
    left: 0;
    position: absolute;
    background: #17D778;
    opacity: 0.6;
    transition: width 0.3s ease 0s, opacity 0.3s ease 0s;
    width: 0;
}

.nav-text:hover
 {
    color: #17D778;
 }
.nav-text:hover:after
 {
    width: 100%;
    opacity: 0.9;
}

.animated {
    font-size: 40px;
    color: #d1d8e0;
    margin-top: 20px;
    font-weight: 900;
    height: 60px;
    line-height: 50px;
}
.animated span:before {
    content: '';
    animation: animate 20s infinite;
    opacity: 1;
    /* transition: opacity 0.1s; */

}
@media (max-width: 800px) {
    .animated {
        height: 70px;
        font-size: 30px;
    }
  }
@keyframes animate {
    0%, 100%{
        content: 'Trần Hữu Quốc Đông';
        opacity: 1;
    }
    5%{
        /* content: 'Trần Hữu Quốc Đông'; */
        opacity: 0;
    }
    20%{
        content: 'Robotics Engineer';
        opacity: 1;
    }
    25%{
        /* content: 'Robotics Engineer'; */
        opacity: 0;
    }
    40%{
        content: 'Programmer';
        opacity: 1;
    }
    45%{
        /* content: 'Programmer'; */
        opacity: 0;
    }
    60%{
        content: 'Developer';
        opacity: 1;
    }
    65%{
        /* content: 'Developer'; */
        opacity: 0;
    }
    80%{
        content: 'Researcher';
        opacity: 1;
    }
    85%{
        /* content: 'Researcher'; */
        opacity: 0;
    }
}

/* ScrolDown */
@keyframes scrollDown {
    0% {
        top: 14px;
        opacity: 0;
   }
    15% {
        top: 14px;
        opacity: 1;
   }
    30% {
        top: 14px;
        opacity: 1;
   }
    45% {
        top: 34px;
        opacity: 1;
   }
    100% {
        top: 34px;
        opacity: 0;
   }
}

.scroll__down {
    position: absolute;
    top: 95%;
    bottom: -44px;
    left: 50%;
    display: inline-block;
    width: auto;
    margin: 0 auto;
    text-align: center;
    background-color: transparent;
    border: none;
    transform: translate(-50%, -50%);
}
.scroll__down:active {
    border: none;
    text-decoration: none;
}
@media (max-width: 1000px) {
    .scroll__down {
        display: none;
    }
  }
.scroll__mouse {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 54px;
    margin: 0 auto;
    border: 2px solid var(--scolor);
    border-radius: 20px;
}
.scroll__wheel {
    position: absolute;
    top: 14px;
    left: 13px;
    width: 4px;
    height: 4px;
    background-color: var(--scolor);
    border-radius: 50%;
    animation: scrollDown 2.5s infinite;
}
/* End ScrolDown */

.mirror-face {
    color: #fff;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    background-color: rgba(255, 255, 255, 0.068);
    /* filter: blur(0.09px); */
    border-width: 0.5px;
    border-style: solid;
    border-color: rgba(255, 255, 255, 0.425);
}

.title {
    color: #d1d8e0;
}
.experience-card {
    /* background-color: var(--secondary); */
    border-radius: 15px;
    /* border: #17D778 solid 1.8px; */
}
.experience-card-title{
    color: var(--scolor);
    font-size: 20px;
    font-weight: 500;
}
.experience-card-desc{
    color: var(--color);
    font-size: 14px;
    font-weight: 300;
}

.skill-card {
    /* background: var(--secondary); */
    border-radius: 10px;
    color: var(--color);
    transition: all .7s;
    cursor: pointer;
}
.skill-card:hover {
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.507), 0 10px 10px rgba(0, 0, 0, 0.356);
    transform: scale(1.08);
}
.skill-img {
    width: 72px; 
    /* height: 35px; */
    object-fit: fill;
}
.skill-modal{
    background: var(--bg-color);
    border-radius: 20px;
    color: var(--color);
    transition: all .7s;
}
.skill-modal h5{
    color: var(--color);
    font-weight: 500;
}
.skill-modal .modal-body {
    color: var(--color);
}
.modal-closse-btn {
    transition: 0.4s;
    color: var(--color);
    font-size: 25px;
    width: 60px;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
  }
  .modal-closse-btn:hover {
    color: #ff7171;
  }

.show-project {
    margin-top: 30px;
    margin-bottom: 30px;
}
.show-project a {
    color: var(--color);
    border: #17D778 solid 2px;
    border-radius: 10px;
    padding: 10px 50px;
    transition: all 0.5s;
}
.proj-title {
    color: var(--color);
    font-weight: 400;
}
.show-project a:hover {
    color: var(--color);
    background-color: var(--scolor);
    /* border-radius: 20px; */
}

.about h2 {
    color: var(--color);
}
.about p {
    color: #d1d8e0;
}
.about a {
    color: white;
    text-decoration: none;
    margin: 10px;
    opacity: .6;
}
.about a:hover {
    opacity: 1;
    transition: .5s;
}
.social-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 5px;
    font-size: 30px;
}
.social-icons a {
    color: white;
    text-decoration: none;
    margin: 10px;
    opacity: .5;
    transition: .5s;
}
.social-icons a:hover {
    opacity: 1;
}
.social {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 5px;
    font-size: 22px;
}
.social a {
    color: white;
    text-decoration: none;
    margin: 10px;
    opacity: .6;
    transition: .5s;
}
.social a:hover {
    opacity: 1;
}

.contact h2 {
    font-size: 35px;
    color: var(--color);
    font-weight: 500;
}
.contact h2 span {
    color: var(--scolor);
    border-bottom: var(--scolor) solid 1px;
    padding-bottom: 5px;
}
.contact .input {
    color: #fff;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    background-color: rgba(255, 255, 255, 0.068);
    border-width: 0.5px;
    border-style: solid;
    border-color: rgba(255, 255, 255, 0.425);
    transition: all 0.5s;
}
.contact .input:focus {
    border: var(--secondary) solid 1px;
}
.contact .input:-webkit-autofill {
    transition: all 5000s ease-in-out 0s;
}
.contact .error-text {
    color: #ff5252;
}
.contact .send-message {
    width: 100%;
    color: var(--scolor) !important;
    padding: 10px 20px;
    border-radius: 10px;
    cursor: pointer;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    background-color: rgba(255, 255, 255, 0.068);
    border-width: 0.5px;
    border-style: solid;
    border-color: rgba(255, 255, 255, 0.425);
    transition: all 0.5s;
}
.contact .send-message:hover {
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.507), 0 10px 10px rgba(0, 0, 0, 0.356);
    border: var(--scolor) solid 1.2px;
}
.contact .send-message:hover i {
    padding-left: 15px;
    transition: all .5s ;
}
.send-success {
    color: #d1d8e0;
    background-color: var(--secondary);
    border-radius: 15px;
}

.project-title {
    color: var(--scolor);
    font-size: 20px;
    font-weight: 440;
    padding-left: 10px;
}
.project-image {
    cursor: pointer;
    transition: all .5s;
}
.project-image:hover {
    transform: scale(1.05);
}
.project-disc {
    color: var(--color);
}
.mini-title {
    color: var(--scolor);
    font-size: 20px;
    font-weight: 500;
    padding-bottom: 0;
    margin-bottom: 0;
}
.preview-btn {
    color: var(--scolor);
    border: var(--scolor) solid 1.3px;
    border-radius: 10px;
    margin: 10px;
    padding: 10px;
    transition: all .5s;
}
.preview-btn:hover {
    color: var(--scolor);
    background-color: var(--secondary);    

}

#Back-to-top-button {
    display: inline-block;
    /* background-color: var(--secondary); */
    color: var(--scolor);
    /* width: 45px;
    height: 45px; */
    text-align: center;
    border-radius: 4px;
    position: fixed;
    bottom: 10px;
    right: 5px;
    transition: all .5s;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
  }
  #Back-to-top-button img {
    width: 70px;
    height: 70px;

  }
  #Back-to-top-button::after {
    font-family: FontAwesome;
    font-weight: normal;
    font-style: normal;
    font-size: 2em;
    line-height: 50px;
    color: #fff;
  }
  #Back-to-top-button:hover {
    cursor: pointer;
    /* background-color: var(--scolor); */
    color: var(--secondary);
  }
  #Back-to-top-button:active {
    background-color: #555;
  }
  #Back-to-top-button.show {
    opacity: 1;
    visibility: visible;
  }
  @media (max-width: 500px) {
    #Back-to-top-button.show {
      display: none;
    }
  }



  .project-card {
    /* background-color: var(--secondary); */
    border: none;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
    transition: all .7s;
    padding: 0px;
}
.project-card:hover {
    background-color: #424449;
    box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
}
.project-card-img {
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden
}
.project-card-img img {
    object-fit: cover;
    width: 320px;
    height: 200px;
    transition: all .5s;
}
.project-card-img img:hover {
    transform: scale(1.05);
}
.project-card-title {
    color: var(--scolor);
    font-size: 22px;
    font-weight: 440;
    margin-bottom: 10px;
}
.project-card p {
    color: #d1d8e0d3;
    font-size: 14px;
    line-height: 1.5;
}
.show-project-btn {
    margin-top: 30px;
}
.show-project-btn a {
    color: #fff;
    /* background-color: #3edd83e1; */
    /* padding: 10px 20px; */
    border-radius: 10px;
    transition:  background-color 0.5s;
}
.show-project-btn a:hover {
    border: #17D778 solid 2px;
    background-color: #424449;
    color: var(--scolor);
}
.back-to-projects a {
    color: #fff;
    background-color: var(--bg-color);
    border: var(--scolor) solid 2px;
    padding: 10px 20px;
    border-radius: 10px;
    transition:  background-color 0.5s;
}
.back-to-projects a:hover {
    background-color: var(--scolor);
}

.more-btn {
    color: #525f7f;
    background-color: #ebecee;
    font-weight: 460;
    height: 20px;
    padding: 13px;
    margin: 10px;
    border-radius: 12px;
    transition: all 0.5s;
}
.more-btn:hover {
    color: #f4f5f7;
    background-color: #525f7f;
    box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
  }

.tool {
    color: var(--color);
    background-color: #313338;
    font-size: 13px;
    padding: 6px;
    /* border: var(--color) solid 1px; */
    border-radius: 10px;
    cursor: pointer;
    line-height: 38px;
    transition: all 0.5s;
}
.tool:hover {
    color: #f4f5f7;
    background-color: var(--secondary);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.397), 0 10px 10px rgba(0,0,0,0.397);
}

.search-input {
    background-color: var(--secondary);
    color: var(--color);
    border-radius: 8px;
}
.search-input:focus {
    background-color: var(--secondary);
    color: var(--color);
}
.search-btn {
    background-color: var(--secondary);
    color: #2dce89;
    border-radius: 8px;
    margin-left: 8px;
    width: 45px;
    height: auto;
    text-align: center;
    font-size: 26px;
    padding-top: 5px;
    cursor: pointer;
    transition: all 0.5s;
}
.search-btn:hover {
    background-color: #2dce89;
    color: #e9ecef;
}

.page-404 {
    color: var(--color);
    margin-top: 150px;
}
.page-404 .code {
    font-size: 100px;
    font-weight: 600;
    line-height: 0.5;
    color: var(--scolor);
}
.page-404 .status {
    font-size: 80px;
    font-weight: 600;
    line-height: 1.1;
}
.page-404 .message {
    margin: 0;
}
@media (max-width: 500px) {
    .page-404 {
        margin-top: 50px;
    }
    .page-404 .code {
        font-size: 60px;
    }
    .page-404 .status {
        font-size: 40px;
    }
}


/**/
  ::-webkit-scrollbar{
    width: 8px;
}
/* ::-webkit-scrollbar-track{
    border: 7px solid #33d9b2;
} */
::-webkit-scrollbar-thumb{
  background-color: var(--scolor);
  /* border-radius: 10px; */
}
/**/

.footer {
    color: var(--color);
    background-color: var(--bg-color);
}
.footer p{
    margin: 0px;
    color: var(--color);
    font-size: 15px;
}
.footer .coder {
    font-size: 14px;
}
.footer a{
    color: var(--scolor);
    transition: all .5s;
}
.footer a:hover{
    color: #0daa5c;
}

.card-loader {
    background-color: var(--secondary);
    box-shadow: 0 1px 2px 1px rgba(0, 0, 0, .08), 0 -1px 3px 0 rgba(0, 0, 0, 0.06);
    padding: 8px;
    position: relative;
    border-radius: 2px;
    margin-bottom: 0;
    height: 200px;
    overflow: hidden;
}
.card-loader:only-child {
    margin-top: 0;
}
.card-loader:before {
    content: '';
    height: 110px;
    display: block;
    background-color: #e9ecef;
    box-shadow: -48px 78px 0 -48px #e9ecef, -51px 102px 0 -51px #e9ecef;
}
.card-loader:after {
    content: '';
    background-color: #333;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    animation-duration: 0.6s;
    animation-iteration-count: infinite;
    animation-name: loader-animate;
    animation-timing-function: linear;
    background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.6) 30%, rgba(255, 255, 255, 0) 81%);
    background: -o-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.6) 30%, rgba(255, 255, 255, 0) 81%);
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.6) 30%, rgba(255, 255, 255, 0) 81%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#00ffffff', endColorstr='#00ffffff',GradientType=1);
}
@keyframes loader-animate {
    0% {
        transform: translate3d(-100%, 0, 0);
   }
    100% {
        transform: translate3d(100%, 0, 0);
   }
}

.home-btn {
    border: var(--scolor) solid 2px;
    padding: 8px 35px;
    margin: 10px;
    border-radius: 15px;
    color: var(--scolor);
    font-weight: 500;
    transition: all .5s;
}
.home-btn:hover {
   color: var(--color);
   background-color: #05af5ac4;
}

/* login page */
.login-card {
    background-color: var(--bg-color);
    /* border: var(--color) solid 1px; */
    border-radius: 20px;
    padding: 20px;
}
.login-card .login-card-header h3{
    font-size: 35px;
    font-weight: 600;
    color: var(--color);
    margin: 0;
    margin-bottom: 15px;
}
.login-card .errornote{
    color: #ff5252;
    margin-bottom: 15px;
}

.login-card .login-form .input-group-text{
    background-color: var(--bg-color);
    border: var(--color) solid 1px;
    border-right: none;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
    color: #fff;
}
.login-card .login-form input{
    background-color: var(--bg-color);
    color: var(--color);
    border: var(--color) solid 1px;
    border-radius: 10px;
}
.login-card .login-form .show-password{
    background-color: var(--bg-color);
    color: var(--color);
    border: var(--color) solid 1px;
    border-top-right-radius: 10px;
    border-bottom-right-radius: 10px;
    border-left: none;
    padding: 12px;
    cursor: pointer;
    transition: all .5s;
}
.login-card .login-form .show-password:hover{
    color: var(--scolor);
}
.login-card .login-form .login-btn{
    color: var(--scolor);
    font-size: 15px;
    font-weight: 500;
    border: var(--scolor) solid 1px;
    border-radius: 15px;
    padding: 8px 10px;
    transition: all .5s;
}
.login-card .login-form .login-btn:hover{
    background-color: #077c42;
    color: var(--color);
}

.cv_button {
    margin-top: 10px;
    border: var(--scolor) solid 1px;
    color: var(--scolor);
    border-radius: 10px;
    font-weight: 700;
    padding: 8px;
    cursor: pointer;
    text-align: center;
    transition: all .5s;
}
.cv_button * {
    color: var(--color);
}
.cv_button:hover {
    color: #fff;
    background-color: var(--scolor);
}
.cv_button:hover * {
    color: var(--secondary);
}

.cv_button a {
    color: #fff;
    text-decoration: none;
}

/* login page */