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

main {
    display: flex;
    position: relative;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #fafafa;
    font-family: 'Inter','Noto Sans JP',sans-serif;
}

.container {
    background-color: #fff;
    display: flex;
    max-width: 600px;
    width: 90%;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1em;
    padding: 2em;
    border-radius: 8px;
    border: 1px solid #ddd;
    box-shadow: 0px 0px 3em rgba(0, 0, 0, .11);
}

.display {
    width: 100%;
    padding: 8px;
    border-radius: 6px;
    border: 1px solid #ccc;
}

.ip {
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
}

.ip:hover {
    text-decoration: underline;
}

.notify {
    display: block;
    opacity: 0;
    position: absolute;
    bottom: 0px;
    padding: 1em;
    background-color: #fff;
    border-radius: 8px;
    border: 1px solid #ddd;
    transition: all .3s cubic-bezier(0.075, 0.82, 0.165, 1);
    user-select: none;
}

.show {
    opacity: 1;
    bottom: 2em;
}

a {
    text-decoration: none;
    color: #333;
}