/* Reset & layout */
html, body {
    height: 100%;
    margin: 0;
}
body {
    display: flex;
    flex-direction: column;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #ffffff;
    color: #222;
    line-height: 1.6;
}

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
}
.header {
    background-color: rgb(242, 245, 248);
    padding: 10px 20px;
}
.header-inner {
    display: flex;
    align-items: center;color:#0152BC;
}
a.header-logo {
    border-right: 1px solid rgb(0, 81, 186);
}
.header-logo img {
    max-width: 100px;
    height: auto;
}
.header-company-name {
    font-size: 1.625rem;
    font-weight: 600;
    margin-left: 15px;
    color: rgb(0, 81, 186);
    text-decoration: none;
    margin-right:20px;
}
.header-company-name:hover, .header-link:hover {
    text-decoration: underline;
}
.header-link {
    margin-left:20px;display:inline-block;margin-right:20px;font-weight: bold;color: rgb(0, 81, 186);
text-decoration: none;
}
.header-ofrid {
    text-align: center; font-weight: bold; font-size: 1.1rem;padding-top:30px;
}

/* Thin divider below header */
header::after {
    content: "";
    display: block;
    height: 6px; /* thin bar */
    background-color: rgb(0, 81, 186);
}

/* Main content */
main {
    flex: 1;
    padding: 0 40px;
}
h1 {
    text-align: center;
    margin-top: 30px;
}
h3 {
    text-align: center;
    font-weight: normal;
    max-width: 900px;
    margin: 10px auto;
}
.author {
    text-align: center;
    margin-top: 10px;
}
hr {
    margin: 30px 0;
}
ul {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1rem;
}
ul li {
    margin-bottom: 10px;
    display:block;
}

/* Footer */
footer {
    background-color: rgb(0, 52, 89);
    color: #ffffff;
    padding: 20px;
    text-align: center;
    margin-top:30px;
}
footer a {
    color: #ffffff;
    text-decoration: underline;
}
footer a:hover {
    text-decoration: none;
}
.download-list {
    list-style: none;      /* remove bullets */
    padding: 0;
    text-align: center;    /* center the content */
}
.download-list li {
    /*display: inline-block;*/ /* make each li behave like inline content */
    margin-bottom: 10px;   /* spacing */
}