body {
    background-color: #121214;
    color: #e2e8f0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.7;
    margin: 0;
    padding: 0;
}
.container {
    max-width: 750px;
    margin: 0 auto;
    padding: 60px 20px;
}
header {
    border-bottom: 1px solid #2d3748;
    padding-bottom: 20px;
    margin-bottom: 40px;
}
h1 {
    color: #ffffff;
    font-size: 2.2rem;
    margin: 0 0 10px 0;
}
h2 {
    color: #f7fafc;
    font-size: 1.5rem;
    margin-top: 40px;
    border-left: 4px solid #3182ce;
    padding-left: 12px;
}
p { color: #cbd5e0; font-size: 1.05rem; }
a { color: #63b3ed; text-decoration: none; }
a:hover { text-decoration: underline; }
.date { color: #718096; font-size: 1rem; margin: 0; }
footer {
    margin-top: 60px;
    border-top: 1px solid #2d3748;
    padding-top: 20px;
    color: #4a5568;
    font-size: 0.9rem;
    text-align: center;
}