h1 { 
     color: #2c3e50; 
     font-size: 2.5em; 
     text-align: center; 
     margin-bottom: 10px;
     text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}
h2 { 
    color: #34495e; 
    font-size: 1.8em; 
    border-bottom: 3px solid #3498db; 
    padding-bottom: 10px;
    margin-top: 40px;
}
h3 { 
    color: #2980b9; 
    font-size: 1.4em; 
    margin-top: 30px;
}
.milestone { 
    background: rgba(255,255,255,0.9); 
    margin: 30px 0; 
    padding: 25px; 
    border-left: 6px solid #3498db; 
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    position: relative;
}
.milestone::before {
    content: '';
    position: absolute;
    left: -18px;
    top: 25px;
    width: 12px;
    height: 12px;
    background: #3498db;
    border-radius: 50%;
}
.year-badge {
    display: inline-block;
    background: #e74c3c;
    color: white;
    padding: 8px 16px;
    border-radius: 25px;
    font-weight: bold;
    font-size: 1.1em;
    margin-bottom: 15px;
}
p { margin-bottom: 18px; }
ul { padding-left: 25px; margin-bottom: 18px; }
strong { color: #e74c3c; }
em { color: #7f8c8d; font-style: italic; }
.byline { 
    text-align: center; 
    font-size: 1.1em; 
    margin-top: 50px; 
    padding: 20px;
    background: rgba(52, 152, 219, 0.1);
    border-radius: 10px;
}