html {
  font-size: 18px;
}

body {
  margin: auto;
  padding: 0em;
}

a {
  color: rgb(89, 120, 177);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 400;
  /* margin-bottom: 0.4em;
  margin-top: 1em; */
}

hr {
  border-style: dashed;
  color: #ddd;
}

img,
iframe,
video {
  max-width: 100%;
}

main {
  /* hyphens: auto; */
  max-width: 800px;
  margin: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

blockquote {
  background: #f9f9f9;
  border-left: 5px solid #ccc;
  padding: 3px 1em 3px;
}

table {
  margin: auto;
  border-top: 1px solid #666;
  border-bottom: 1px solid #666;
}
table thead th {
  border-bottom: 1px solid #ddd;
}
th,
td {
  padding: 5px;
}
thead,
tfoot,
tr:nth-child(even) {
  background: #eee;
}

/* nav */
#mainNav {
  display: block;
  position: absolute;
  width: 100%;
  top: 0;
}
#mainNav.hidden {
  display: none;
}
#mainNav.visible {
  display: block;
  position: fixed;
  background-color: white;
  opacity: 0.9;
}
#mainNav.visible a {
  color: black;
}
#mainNav.visible a:hover {
  color: rgb(89, 120, 177);
}

#mainNav .container {
  margin: auto;
  max-width: 1200px;
  height: 3em;
}

a.anchor {
  display: block;
  position: relative;
  top: -3rem;
  visibility: hidden;
}

#mainNav a {
  color: white;
  text-decoration: none;
  font-weight: 800;
  display: inline-block;
}
#mainNav a:hover {
  color: darkgray;
}
#mainNav a.nav-brand {
  line-height: 2.5rem;
  font-size: 2rem;
  margin-top: 0.5rem;
  float: left;
}
#mainNav a.nav-top {
  font-size: 1rem;
  margin-top: 0.7rem;
  line-height: 1.5rem;
  float: right;
  margin-left: 1rem;
}

/* header */
#mainHeader {
  position: relative;
  margin-bottom: 3rem;
  background: no-repeat center center;
  background-color: #868e96;
  background-attachment: scroll;
  background-size: cover;
}
#mainHeader .overlay {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: #212529;
  opacity: 0.5;
}

#mainHeader .container {
  margin-top: 3rem;
  display: block;
  position: relative;
  color: white;
  margin: auto;
  max-width: 900px;
  padding: 1rem 0 2rem 0;
}

#mainHeader h1,
#mainHeader h2 {
  margin-block-start: 0;
  margin-block-end: 0.1em;
}
#mainHeader h1 {
  margin-top: 3.5rem;
  font-size: 3.5rem;
  font-weight: 600;
}
#mainHeader h2 {
  font-size: 2rem;
}
#mainHeader time {
  display: block;
  margin-top: 0.5rem;
  color: #ccc;
}

/* footer */
footer p {
  text-align: center;
  padding-top: 1rem;
  padding-bottom: 2rem;
}
footer a {
  color: gray;
  text-decoration: none;
  font-size: 0.9rem;
}
footer a:hover {
  text-decoration: underline;
}

/* buttons */
p.navigation-buttons {
  text-align: center;
  margin-top: 2rem;
}

.button {
  background-color: #888;
  color: white;
  display: inline-block;
  text-decoration: none;
  padding: 0.5rem;
}
.button:hover {
  background-color: #999;
}

/* list */
h2.list-title a {
  text-decoration: none;
  font-size: 1.5rem;
}
summary.meta {
  color: #222;
}
time.meta {
  color: #444;
  display: block;
  margin-bottom: 0.3rem;
  font-style: italic;
}
header time.meta {
  margin-top: -1rem;
}

/* descrição de tareas */
summary.tarefas-summary {
  font-size: 0.9em;
  color: #777;
}

/* descrição dos colaboradores */
summary.contribuidores-summary {
  font-size: 0.8em;
  color: #777;
  font-style: italic;
}

summary.tarefas-summary p {
  margin-top: 0.5rem;
}

summary.tarefas-summary time {
  font-style: italic;
  font-weight: bold;
}

/* pdfjs */
.pdfjs-buttons {
  height: 3.5rem;
}
.pdfjs-buttons p {
  width: 30%;
  text-align: center;
}
.pdfjs-buttons .pdfjs-prev {
  float: left;
}
.pdfjs-buttons .pdfjs-next {
  float: right;
}