/* Base reset and layout */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

body {
  background: white;
  font-family: "Open Sans", Arial, sans-serif;
  font-size: 12pt;
}

a:link,
a:visited,
a:active {
  color: black;
}

a:hover {
  color: #999; 
}

li {
  margin-bottom: 5px;
}


/* Wrapper contains main content */
#wrapper {
  width: 960px;
  margin: 0 auto;
  flex: 1 0 auto; /* Fill remaining vertical space */
}

/* Header image */
.header-image {
  width: 100%;
  height: auto;
  display: block;
}

/* Navigation */
nav {
  margin: 10px 0;
}

.nav-links {
  list-style: none;
  text-align: center;
}

.nav-links li {
  display: inline-block;
  margin: 0 10px;
}

.nav-links a {
  text-decoration: none;
  color: black;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: green;
}

/* Divider that spans full screen width */
.divider {
  border: none;
  border-top: 1px solid black;
  width: 100vw;
  position: relative;
  left: 50%;
  margin-left: -50vw;
  margin-top: 0;
  margin-bottom: 20px;
}

/* Main content columns */
.content {
  display: flex;
  gap: 20px;
  margin-top: 20px;
}

.main-column {
  width: 70%;
}

.sidebar {
  width: 30%;
}

/* Article blocks */
.article {
  margin-bottom: 20px;
  padding: 10px;
  background-color: #f9f9f9;
  border: 1px solid #ddd;
}

.sidebar .article {
  text-align: left; /* ensures text is left-aligned */
}

.sidebar .article img {
  display: block;
  margin: 0 auto;
}


/* Footer */
footer {
  background-color: #eee;
  width: 100%;
  padding: 15px 0;
  flex-shrink: 0;
}

.footer-content {
  width: 960px;
  margin: 0 auto;
  text-align: center;
  font-size: 11pt;
}

.download-row:hover {
  background-color: #e0e0e0;
  cursor: pointer;
}

/* wrap these buttons in a <div class="preset-buttons"> */
.preset-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;        /* center horizontally */
  gap: 1px;                    /* 5px vertical spacing */ 
}
.preset-buttons button {
  width: 250px;                /* same width for all */
  /* but you can pick any px or use %/em units */
}