* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #ffffff;
    color: #000000;
    font-family: Arial, Helvetica, sans-serif;
}

.navbar ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.navbar ul li {
    padding: 15px 20px;
    cursor: pointer;
    color: #a8a8a8;
    transition: all 0.3s ease;
}

.navbar ul li:hover {
    color: #000000;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.navbar ul li.active {
    color: #000000;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    background-color: #ffffff;
    box-shadow: 0 -10px 10px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

.content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    background-color: #ffffff;
    color: #000000;
    max-width: 600px;
    height: 400px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    z-index: 1;
}

.content-filler {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 200px;
    background-color: #000000;
    color: #ffffff;
    border-radius: 10px;
}