* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    transition: 0.6s;
}

*::selection {
    background-color: transparent;
}

body {
    width: 100%;
    height: 100vh;
    background-color: #190238;
}

section {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header {
    height: 100%;
    width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    gap: 20px;
    background-color: #4a7dff79;
}

.lap {
    width: 450px;
    height: 250px;
    border-radius: 5px;
    position: relative;
    border: 10px solid #555;
    background-image: url("/images/stu.png");
    background-position: center;
    background-size: cover;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(74, 124, 255, 0.3);
}

.lap::after {
    content: "";
    width: 50px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background-color: #555;
    height: 60px;
    bottom: -60px;
}

.lap::before {
    content: "";
    height: 10px;
    width: 150px;
    background-color: #555;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    bottom: -70px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(74, 124, 255, 0.3);
}

.tap {
    width: 200px;
    height: 150px;
    border-radius: 5px;
    position: relative;
    border: 5px solid #555;
    background-image: url("/images/stu.png");
    background-position: center;
    background-size: cover;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(74, 124, 255, 0.3);
}

.tap::before {
    content: "";
    position: absolute;
    top: -4.2px;
    left: 50%;
    transform: translateX(-50%);
    height: 4px;
    width: 4px;
    border-radius: 50%;
    background-color: #000;
}

.labtop {
    width: 250px;
    height: 200px;
    border-radius: 5px;
    position: relative;
    border: 5px solid #555;
    background-image: url("/images/stu.png");
    background-position: center;
    background-size: cover;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(74, 124, 255, 0.3);
}

.labtop::after {
    content: "";
    height: 10px;
    width: 270px;
    background-color: #555;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    bottom: -10px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(74, 124, 255, 0.3);
}

.labtop::before {
    content: "";
    position: absolute;
    top: -4.2px;
    left: 50%;
    transform: translateX(-50%);
    height: 4px;
    width: 4px;
    border-radius: 50%;
    background-color: #000;
}

.phone {
    width: 60px;
    height: 100px;
    border-radius: 2px;
    position: relative;
    border: 5px solid #555;
    background-image: url("/images/stu\ -2.png");
    background-position: center;
    background-size: cover;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4), 0 10px 30px rgba(74, 124, 255, 0.3);
}

.phone::before {
    content: "";
    position: absolute;
    top: -4.2px;
    left: 50%;
    transform: translateX(-50%);
    height: 3px;
    width: 3px;
    border-radius: 50%;
    background-color: #000;
}

h1 {
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
    margin-top: 20px;
    text-transform: capitalize;
    color: #fff;
    font-weight: 900;
}

span {
    color: #4a7cff;
}

.links {
    width: 50%;
    height: 100%;
    position: relative;
    border-radius: 0;
}

h2 {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 70px;
    color: #fff;
    text-align: center;
    margin: 100px 0;
}

h2::before {
    content: "ST";
    position: absolute;
    border-radius: 50%;
    border: 1px solid #4a7cff;
    width: 80px;
    height: 80px;
    color: #eee;
    background-color: #4a7cff;
}

a {
    width: 80%;
    margin: 10px auto;
    padding: 10px;
    border-radius: 4px;
    text-decoration: none;
    color: #fff;
    border: 1px solid #4a7cff;
    background-color: transparent !important;
    display: block;
    position: relative;
    overflow: hidden;
    transition: color 0.4s ease, border-color 0.4s ease;
    text-align: center;
    margin-left: 50%;
    transform: translateX(-50%);
}

a:hover {
    background-color: #4a7cff;
    color: #fff;
    border: 1px solid #4a7cff;
}

a::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: #4a7cff;
    transition: left 0.4s ease;
    z-index: -1;
}

a:hover::before {
    left: 0;
}

i {
    margin: 0 10px;
}

div {
    width: 100px;
    height: 100px;
    border-radius: 15px;
    transition: all 0.8s ease;
    z-index: 999;
}

@media (max-width: 970px) {
    body {
        overflow-y: scroll;
    }
    section {
        flex-direction: column;
    }
    header {
        width: 100%;
        padding: 10px;
    }
    .links {
        width: 100%;
        margin-top: 100px;
    }
    h1 {
        display: none;
    }
    #div {
        position: absolute;
        top: 30px;
    }
}

@media (max-width:450px) {
    .lap {
        width: 350px;
    }
}