header, footer {
    background-color: #d3d3d3;
    width: 100%;
    padding: 5px 0;
}

main {
    padding: 10px 20px;
    max-width: 900px;
    margin: auto;
    text-align: center;
}

body {
    font-family: 'Segoe UI', Tahoma, sans-serif;
    color: #333;
    line-height: 1.3;
    text-align: center;
}

h1, h3 {
    margin-top: 10px;
    margin-bottom: 10px;
    color: #2c3e50;
}

h2 {
    margin-bottom: 10px;
    color: #2c3e50;
    font-size: 1.25em;
}

header h1{
    font-size: 1.50em;
    margin-bottom: 5px;

}



p {
    text-align: justify;
}

h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #ff8777;
    margin: 10px auto 0;
    border-radius: 2px;
}

.schedule table{
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 1em;
}

 .schedule th, .schedule td{
    border: 2px solid #333;
    padding: 6px 16px;
    text-align: left;
}

.schedule th{
    background-color: #c9c9c9;
    font-weight: bold;
}

.schedule tr:nth-child(even) {
    background-color: #c9c9c9;
}

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

.right {
    text-align: right;
}

nav {
    display: flex; 
    justify-content: space-between; 
    margin-top: 20px;
}

.links p {
    text-align: center;
    font-size: 0.6em;
}

.milestone p {
    font-size: 0.80em;
}

.milestone h2 {
    color: #2c3e50;
    font-size: 1em;
}

.milestone h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #7cff77;
    margin: 3   px auto 0;
    border-radius: 2px;
}

pre {
    width: fit-content;
    margin: 0 auto;
    text-align: left;
}

.final p {
    font-size: 0.90em;
}

.final h2 {
    color: #2c3e50;
    font-size: 1em;
}

.final h3 {
    color: #2c3e50;
    font-size: 0.95em;
}

.final h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #ff8b77;
    margin: 3   px auto 0;
    border-radius: 2px;
}