body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #333;
    color: #fff;
    padding: 20px 0;
}

header h1 {
    margin: 0;
}

header p {
    margin: 5px 0 0;
}

section {
    padding: 40px 0;
}

.about-me,
.skills,
.projects,
.certifications,
.contact {
    background-color: #f4f4f4;
}

a {
    color:#333;
}

a:hover {
    color: #000;
}

h2 {
    color: #333;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin-bottom: 10px;
}

.project,
.certification {
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 20px;
}

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