body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f5f5f7;
    color: #1d1d1f;
}
header {
    background-color: #000;
    color: #fff;
    text-align: center;
    padding: 1rem;
}
header h1 {
    margin: 0;
    font-size: 2.5rem;
}
nav {
    background-color: #1d1d1f;
    padding: 1rem;
    text-align: center;
}
nav a {
    color: #fff;
    margin: 0 1rem;
    text-decoration: none;
    font-weight: 500;
}
nav a:hover {
    color: #2997ff;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}
section {
    margin-bottom: 2rem;
}
h2 {
    color: #1d1d1f;
    border-bottom: 2px solid #2997ff;
    padding-bottom: 0.5rem;
}
ul {
    list-style: none;
    padding: 0;
}
li {
    margin-bottom: 1rem;
}
a {
    color: #2997ff;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
.resource {
    background-color: #fff;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
footer {
    background-color: #1d1d1f;
    color: #fff;
    text-align: center;
    padding: 1rem;
    position: relative;
    bottom: 0;
    width: 100%;
}