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

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: #333;
    color: white;
}

header .logo {
    font-size: 24px;
    font-weight: bold;
}

nav ul {
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: white;
    font-size: 16px;
}

main {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
    background-color: white;
    padding: 40px;
}

.intro {
    display: flex;
    align-items: center;
    text-align: left;
}

.profile img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-right: 20px;
}

.greeting h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.greeting p {
    font-size: 18px;
    margin-bottom: 20px;
}

button a {
    text-decoration: none;
    color: white;
    background-color: #333;
    padding: 10px 20px;
    border-radius: 5px;
}

button a:hover {
    background-color: #555;
}

footer {
    text-align: center;
    padding: 10px;
    background-color: #333;
    color: white;
    position: fixed;
    width: 100%;
    bottom: 0;
}