:root {
    --primary-color: #504aa1;
    --secondary-color: #262626;
    --background-color: #0f0e0e;
    --text-color: #e0e0e0;
    --secondary-text-color: #b3b3b3;
    --main-font: "Poppins", sans-serif;
}


*{
    margin: 0;
    padding: 0;
    font-family: var(--main-font);
    box-sizing:border-box;
}
html{
    scroll-behavior: smooth;
}
body {
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.5s ease, color 0.5s ease;
}
#header {
    width: 100%;
    height:100vh;
    background-image: url(background.jpg);
    background-size: cover;
    background-position: center;
    padding: 0 40px;
    top: 0;
    left: 0;
    width: 100%;

}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
}
.navbar ul {
  display: flex;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.logo {
  width: 100px;
  margin: 0;
}

nav ul li {
    list-style: none;
    display: inline-block;
    margin: 10px 20px;
}
nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 18px;
    position: relative;
}
nav ul li a::after{
    content: "";
    width: 0%;
    height: 3px;
    background-color: var(--primary-color);
    position: absolute;
    bottom: -6px;
    left: 0;
    transition:0.5s ;
}
nav ul li a:hover::after {
    width: 100%;
}
.header-text {
    margin-top: 20%;
    font-size:  30px;
}
.header-text h1 {
    font-size: 60px;
    margin: 20px 0;
}
.header-text h1 span {
    color: var(--primary-color);
}
#About {
    padding: 80px 0;
    color: var(--text-color);
}
.row {
    display: flex;
    justify-content:space-between;
    flex-wrap: wrap;
}
.about-col-1{
    flex-basis: 35%;
}
.about-col-1 img {
    width: 100%;
    border-radius: 15px;
}
.about-col-2 {
    flex-basis: 60%;
}
.sub-title {
    font-size: 60px;
    font-weight: 600;
    color: var(--text-color);
}
.tab-titles {
    display: flex;
    margin: 20px 0 40px 0;
}
.tab-links {
    margin-right: 50px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    position: relative;
}
.tab-links::after {
    content: "";
    width: 0%;
    height: 3px;
    background: var(--primary-color);
    position: absolute;
    bottom: -8px;
    left: 0;
    transition: 0.5s;
}
.tab-links.active-link::after{
    width: 50%;
}
.tab-contents ul li{
    list-style: none;
    margin: 10px 0;
}
.tab-contents ul li span{
    color: var(--primary-color);
    font-size: 14px;
}
.tab-contents{
    display: none;
}
.tab-contents.active-tab{
    display: block;
}

input[type="radio"][name="tabs"] {
  display: none;
}


.tab-titles label {
  margin-right: 30px;
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  color: var(--text-color);
}

.tab-titles label::after {
  content: "";
  width: 0;
  height: 3px;
  background: var(--primary-color);
  position: absolute;
  bottom: -8px;
  left: 0;
  transition: 0.3s;
}


#tab1:checked ~ .tab-titles label[for="tab1"]::after,
#tab2:checked ~ .tab-titles label[for="tab2"]::after,
#tab3:checked ~ .tab-titles label[for="tab3"]::after,
#tab4:checked ~ .tab-titles label[for="tab4"]::after {
  width: 50%;
}


.tab-contents {
  display: none;
}

#tab1:checked ~ .tab-contents-container #content1,
#tab2:checked ~ .tab-contents-container #content2,
#tab3:checked ~ .tab-contents-container #content3,
#tab4:checked ~ .tab-contents-container #content4 {
  display: block;
}

#services{
    padding: 80px 0;
}
.services-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-gap: 40px;
    margin-top: 50px;
}
.services-list div {
    background-color: var(--secondary-color);
    padding: 40px;
    font-size: 13px;
    font-weight: 300;
    border-radius: 10px;
    transition: background 0.5s, transform 0.5s;
}
.services-list div i   {
    font-size: 50px;
    margin-bottom: 30px;
}
.services-list div h2 {
    font-size: 30px;
    font-weight: 600;
    margin-bottom: 15px;
}
.services-list div a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 12px;
    margin-top: 15px;
    display: inline-block;
}
.services-list div:hover {
    background: var(--primary-color);
    transform: translateY(-10px);
}
#Projects {
    padding: 50px 0;
}
.projects-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-gap: 40px;
    margin-top: 50px;
}
.project {
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}
.project img {
    width: 100%;
    border-radius: 10px;
    display: block;
    transition: transform 0.5s;
}
.layer {
    width: 100%;
    height: 0;
    background: linear-gradient(rgba(0,0,0,0.6), var(--primary-color));
    border-radius: 10px;
    position: absolute;
    left: 0;
    bottom: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 40px;
    text-align: center;
    font-size: 14px;
    transition: height 0.5s;
}
.layer h3 {
    font-weight: 500;
    margin-bottom: 20px;
}
.layer a {
    margin-top: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 18px;
    line-height: 60px;
    background: var(--text-color);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
}
.project:hover img {
    transform: scale(1.1);
}
.project:hover .layer {
    height: 100%;
}
.btn{
    display: block;
    margin: 50px auto;
    width: fit-content;
    border: 1px solid var(--primary-color);
    padding: 14px 50px;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-color);
    transition: background 0.5s;
}
.btn:hover {
    background: var(--primary-color);
}

.contact-left {
    flex-basis: 35%;
}
.contact-right {
    flex-basis: 60%;
}
.contact-left p {
    margin-top: 30px;
}
.contact-left p i{
    color: var(--primary-color);
    margin-right: 15px;
    font-size: 25px;
}
.social-icons {
    margin-top: 30px;
}
.social-icons a {
    text-decoration: none;
    font-size: 30px;
    margin-right: 15px;
    color: #ababab;
    display: inline-block;
    transition: transform 0.5s;
}
.social-icons a:hover {
    color: var(--primary-color);
    transform: translateY(-5px);
}
.btn.btn2{
    display: inline-block;
    background: var(--primary-color);
}
.contact-right form {
    width: 100%;
}
form input, form textarea{
    width: 100%;
    border: 0;
    outline: none;
    background: var(--secondary-color);
    padding: 15px;
    margin: 15px 0;
    color: var(--text-color);
    font-size: 18px;
    border-radius: 6px;
}
form .btn2{
    padding: 14px 60px;
    font-size: 18px;
    margin-top: 20px;
    cursor: pointer;
}
.copyright {
    width: 100%;
    text-align: center;
    padding: 25px 0;
    background: var(--secondary-color);
    font-weight: 300;
    margin-top: 20px;
}

.nav-open {
    display: none;
}

.nav-close {
    display: none;
}

@media only screen and (max-width: 768px) {
    #header{
        background-image: url(background.jpg);
    }
    .header-text {
        margin-top: 100%;
        font-size: 16px;
    }
    .header-text h1 {
        font-size: 30px;
    }
    .sub-title{
        font-size: 40px;
    }
    .about-col-1, .about-col-2{
        flex-basis: 100%;
    }
    .about-col-1{
        margin-bottom: 30px;
    }
    .about-col-2{
        font-size: 14px;
    }
    .tab-links{
        font-size: 16px;
        margin-right: 20px;
    }
    .contact-left, .contact-right{
        flex-basis: 100%;
    }
    .copyright{
        font-size: 14px;
    }
}

#menu-toggle {
  display: none;
}


.menu-icon {
  font-size: 30px;
  color: var(--text-color);
  cursor: pointer;
  display: none;
}


.navbar ul {
  display: flex;
  gap: 20px;
}

  .menu-icon {
    display: block;
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 101;
  }

  .navbar ul {
    position: absolute;
    top: 60px;
    right: 0;
    background: var(--primary-color);
    width: 100%;
    flex-direction: column;
    align-items: center;
    display: none;
    z-index: 100;
    padding: 10px 0;
  }

  #menu-toggle:checked + .menu-icon + .navbar ul {
    display: flex;
  }

  .navbar ul li {
    padding: 10px 0;
  }
#msg{
    color: #ffffff;
    margin-top: -40px;
    display: block;
}