body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f5f7fa;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    text-align: center;
    background-color: #2c3e50;
    color: white;
    padding: 40px 20px;
}

.profile-pic {
    width: 140px;
    border-radius: 50%;
}

nav {
    background: #34495e;
    text-align: center;
    padding: 10px;
}

nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    text-decoration: underline;
}

section {
    background: white;
    margin: 20px auto;
    padding: 25px;
    width: 70%;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

h3 {
    color: #2c3e50;
}

.project {
    margin-bottom: 15px;
}

.project a {
    display: inline-block;
    margin-top: 5px;
    color: #3498db;
    font-weight: bold;
}

button {
    padding: 8px 12px;
    cursor: pointer;
}

input, textarea {
    display: block;
    margin-bottom: 10px;
    padding: 8px;
    width: 100%;
    max-width: 400px;
}

footer {
    text-align: center;
    padding: 20px;
}

.dark-mode {
    background-color: #121212;
    color: white;
}

.dark-mode section {
    background-color: #1e1e1e;
}

#welcomeMessage {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #2c3e50;
    color: white;
    padding: 10px;
    border-radius: 8px;
    display: none;
}