* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Roboto', 'sans-serif';
    scroll-behavior: smooth;
}

body {
    background: #080808;
    color: white;
    padding-bottom: 50px;
}

.header {
    width: 100%;
    height: 100vh;
}

.about {
    width: 100%;
    height: 100vh;
    color: #ababab;
    padding: 150px 0;
}

.container {
    padding: 10px 10%;
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.logo {
    display: inline;
    width: 12%;
}

nav ul li {
    display: inline-block;
    list-style: none;
    margin: 10px 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    position: relative;
}

.button {
    padding: 12px 15px;
    background-color: #3b86eff2;
    cursor: pointer;
    border: none;
    border-radius: 5px;
}

.button:hover {
    background-color: #71acfff2;
    transition: 0.3s all ease;
}

/*to prevent the underline effect*/
.button a:hover::after {
    content: none;
}

nav ul li a::after {
    content: '';
    width: 0;
    height: 3px;
    background: #3b86eff2;
    position: absolute;
    left: 0;
    bottom: -6px;
}

nav ul li a:hover::after {
    width: 100%;
    transition: 0.5s;
}

.header-text {
    margin-top: 20%;
    font-size: 30px;
}

.header-text h1 {
    font-size: 60px;
    margin-top: 20px;
}

.row {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.text {
    color: #8ebdfff2;
}

.user-logo {
    border-radius: 100%;
    width: 90%;
    box-shadow:
        0 0 30px 15px rgba(0, 170, 255, 0.8), 
        0 0 10px 5px rgba(255, 255, 255, 0.9);
}

.user-logo:hover {
    box-shadow: 
        0 0 40px 20px rgba(0, 170, 255, 1.0),
        0 0 15px 10px rgba(255, 255, 255, 1.0);
    transform: scale(1.02); 
    transition: 0.5s ease all;
    cursor: pointer;
}

.header .row {
    margin-top: 250px;
}


.about-col-1 {
    flex-basis: 35%;
}

.about-col-1 img {
    width: 90%;
    border-radius: 15px;
}
.about-col-2 {
    flex-basis: 60%;
}

.about-col-2 h1 {
    margin-bottom: 20px;
}
.about-col-2 p {
    font-size: 20px;
    margin-bottom: 10px;
    line-height: 1.3;
}

.sub-title {
    font-size: 60px;
    font-weight: 600;
    color: white;
}

.tab-titles {
    display: flex;
    margin: 20px 0 40px;
}

.tab-links {
    margin-right: 50px;
    font-size: 25px;
    font-weight: 500;
    cursor: pointer;
    position: relative;
}

.tab-links::after {
    content: '';
    width: 0;
    height: 3px;
    background: #3b86eff2;
    position: absolute;
    left: 0;
    bottom: -8px;
}

.tab-links.active-link::after {
    width: 70%;
    transition: 0.3s all ease;
}

.tab-contents ul li {
    list-style: none;
    margin: 15px 0;
}

.tab-contents ul li span {
    color: rgb(58, 181, 238);
    font-size: 15px;
    line-height: 2;
}

.tab-contents {
    display: none;
}

.tab-contents.active-tab {
    display: block;
}

.contact-left {
    flex-basis: 30%;
    
}

.contact-right {
    flex-basis: 60%;
} 

.contact-left p {
    margin-top: 30px;
    font-size: 20px;
}

.contact-left p ion-icon {
    color: #058ac3;
    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 0.3s;
}

.social-icons a:hover {
    color: #058ac3;
    transform: translateY(-5px);
}

.btn.btn2 {
    display: inline-block;
    background: #058ac3;
    color: #fff;
    margin: 50px auto;
    width: fit-content;
    border: 1px solid #058ac3;
    border-radius: 6px;
    margin-top: 50px;
    padding: 20px 60px;
    text-decoration: none;
    font-size: 22px;
    cursor: pointer;
    transition: 0.3s ease;
}

.btn.btn2:hover {
    background: black;
}

form input, form textarea {
    width: 100%;
    border: 0;
    outline: none;
    background: #262626;
    padding: 15px;
    margin: 15px 0;
    color: white;
    font-size: 18px;
    border-radius: 6px;
}

form btn2 {
    padding: 14px 60px;
    font-size: 18px;
    margin-top: 20px;
    cursor: pointer;
}
#msg {
    color: #61b752;
    margin-top: -20px;
    display: block;
    font-size: 20px;
}

/*------css responsiveness-----*/
nav ion-icon {
    display: none;
}
@media only screen and (max-width: 600px) {
    .header-text {
        margin-top: 10%;
        font-size: 30px;
    }
    .user-logo {
        margin-top: 50px;
        width: 70%;
         box-shadow:
        0 0 10px 5px rgba(0, 170, 255, 0.8), 
        0 0 3px 1px rgba(255, 255, 255, 0.9);
    }
    .user-logo:hover {
    box-shadow: 
        0 0 15px 7px rgba(0, 170, 255, 1.0),
        0 0 5px 3px rgba(255, 255, 255, 1.0);
    }
    .header-text h1 {
        font-size: 30px;
    }
    nav ion-icon {
    display: block;
    font-size: 25px;
    }

    .logo {
        width: 50%;
    }

    nav ul {
        background: #058ac3;
        position: fixed;
        top: 0;
        right: -200px;
        width: 200px;
        height: 100vh;
        padding-top: 50px;
        z-index: 2;
        transition: 0.3s;
    }
    nav ul li {
        display: block;
        margin: 25px;
    }
    .button {
        display: inline;
        padding: 0;
        outline: none;
        border: none;
        color: white;
        background-color: #058ac3;
    }
    nav ul ion-icon {
        position: absolute;
        top: 25px;
        left: 25px;
        cursor: pointer;
    }
    .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;
    }
    .tab-titles p {
        margin-top: 15px;
    }
    .contact {
        margin-top: 200%;
    }
    .contact-left, .contact-right {
        flex-basis: 100%;
    }
}