:root {
  --main_color: hsl(0, 0%, 95%);
  --sidebar_color: hsl(180, 100%, 100%);
  --accent_color: hsl(225, 27%, 30%);
  --shadow_color: hsla(0, 0%, 0%, 0.2);
  --text_accent_color: hsl(240, 100%, 99%);
  --active_menu_item: hsl(0, 0%, 20%);
  --inactive_menu_item: hsl(0, 0%, 50%);
  --separator: hsl(0, 0%, 80%);
}

* {
  box-sizing: border-box;
}


/* layout */

.page-wrap {
  background: var(--main_color);
  height: calc(100vh - 10px);
  display: grid;
  grid-template-columns: minmax(10px, 1fr) minmax(10px, 3fr);
  grid-template-rows: min-content min-content 1fr min-content;
  gap: 1px;
}

.page-wrap > * {
  padding: 1rem;
}

@media (max-width: 600px) {
  .page-wrap {
    grid-template-columns: 100%;
    grid-template-rows: auto;
  }
  
  .page-wrap > * {
    grid-column: 1/-1 !important;
    grid-row: auto !important;
  }
}

.page-header {
  grid-column: 1/-1;
}

.page-nav {
  grid-column: 2/3;
}

.page-main {
  grid-column: 2/3;
}


.page-sidebar {
  grid-column: 1/2;
  grid-row: 2/4;
  box-shadow: 0 1em 1em 0 var(--shadow_color);
}


.page-main {
  grid-column: 2/3;
}


.page-footer {
  grid-column: 1/-1;
}


/* styling */

body {
  background: var(--main_color);
  padding: 5px;
  height: 100vh;
  margin: 0;
  font: 500 100% system-ui, sans-serif;
}



/* header */

.page-header {
  background: var(--main_color);
}

header {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
}

a.logotype {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  text-decoration: none;
}

h1 {
  font-family: "Century Gothic", CenturyGothic, AppleGothic, sans-serif;
  letter-spacing: 0.2rem;
  text-transform: lowercase;
  font-size: 3.5rem;
  color: var(--accent_color);
}

.logo {
  width: 7rem;
}

a.login {
  /* width: 5rem;
  height: 2rem; */
  background: var(--accent_color);
  color: var(--main_color);

  border: none;
  border-radius: 0.5rem;

  padding: 0 1rem;
  display: inline-block;
  font-size: 1.1rem;
  text-align: center;

  text-transform: lowercase;
  text-decoration: none;
}


/* sidebar */

.page-sidebar {
  background:  var(--sidebar_color);
  box-shadow: 0 1em 1em 0 var(--shadow_color);
  border-radius: 0.5rem;
}

.page-sidebar ul {
  list-style-type: none;
  font-size: 1.5rem;
}

.page-sidebar ul li {
  padding-bottom: 1rem;
}

.page-sidebar ul li a {
  text-decoration: none;
  color: var(--inactive_menu_item);
}

/* 
.page-sidebar ul li a:hover,
.page-sidebar ul li a:focus {
  background:  var(--main_color);
} 
*/

.page-sidebar ul li a.active {
  color: var(--active_menu_item);
}

#copy-public-key,
#logout {
  padding-top: 0.5rem;
  border-top: thin solid var(--separator);
}


/* main */

.page-nav {
  background:  var(--main_color);
}

.page-main {
  background: var(--main_color);
}


/* footer */

.page-footer {
  background: var(--accent_color);
  color: var(--main_color);
}

.page-footer,
.footer-card {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
}

.footer-card {
  gap: 2rem;
}

.footer-card-title {
  text-transform: uppercase;
}

.footer-card ul {
  list-style-type: none;
}

.footer-card ul li {
  padding-bottom: 0.5rem;
}

.footer-card ul a {
  text-decoration: none;
  color: var(--text_accent_color);
}


.video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}