body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f5f5;
    color: #333;
}

header,
footer {
    background: #242424;
    color: #fff;
    padding: 20px;
    text-align: center;
}

main {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

nav a {
    color: #fff;
    margin: 0 10px;
    text-decoration: none;
}

section {
    margin-bottom: 30px;
}

h1,
h2 {
    margin: 0 0 10px;
}

p {
    line-height: 1.6;
}

.copy-email {
    background: none;
    border: none;
    padding: 0;
    color: inherit;
    font: inherit;
    cursor: pointer;
    text-decoration: underline;
}

.copy-notification {
    position: fixed;
    bottom: 25px;
    left: 50%;
    transform: translate(-50%, 20px);
    background-color: #222;
    color: white;
    padding: 10px 16px;
    border-radius: 6px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.copy-notification.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}