:root {
  --border-color: #999;
  --max-width: 1460px;
  --min-width: 1060px;
  --l0-clr: #0a2a4b;
  --l1-clr: #4cacf2;
  --l2-clr: #1a6ed5;
  --l3-clr: #bbddf1;
  --l4-clr: #044a96;
  --l5-clr: #8c9ca4;
  --l6-clr: #0b1b2b;
  --l7-clr: #58626c;
  --l8-clr: #8c94a0;
  --l9-clr: #44545c;
}

html,
body {
  font-family: Verdana, sans-serif;
  padding: 0;
  margin: 0;
  min-width: var(--min-width)
}

#container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  align-content: center;
  background-color: #eee;
}

#sched {
  max-width: var(--max-width);
  min-width: var(--min-width);
  margin: 0 auto 10px;
}

#drop-area {
  border-radius: 20px;
  width: 80vw;
  max-width: 960px;
  height: 80vh;
  text-align: center;
  font-size: 20px;
  color: #888;
  margin: 50px auto;
  cursor: pointer;
  transition: all 300ms;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: white;
  box-shadow: 0 0 10px var(--border-color);
}

#drop-area.hover {
  border-color: var(--border-color);
  color: #333;
}

#drop-area:hover {
  box-shadow: 0 0 20px var(--border-color);
}

#col-header {
  z-index: 99;
  position: sticky;
  top: 41px;
  background-color: #cccccc;
}


header {
  z-index: 99;
  position: sticky;
  top: 0;
  margin: 0;
  padding: 5px 10px 5px 20px;
  height: 30px;
  background-color: #202e39;
  color: whitesmoke;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
}
header h1 {
  font-size: 1.5rem;
  margin: 0;
  padding: 0;
}

#search-input {
  width: 300px;
}
h1 a {
  text-decoration: none;
  color: inherit;
}

.task p,
#col-header p {
  margin: 0;
  padding: 5px 5px;
  border-bottom: 0.5px solid var(--border-color);
  border-right: 0.5px solid var(--border-color);
}

.node {
  padding-left: 10px;
  border-left: 0.5px solid var(--border-color);
}
.tasks {
  background-color: white;
  color: black;
  border-left: 0.5px solid var(--border-color);
  font-size: 14px;
}
.l0 {
  background-color: var(--l0-clr);
  color: white;
  font-size: 1.5rem;
}
.l1 {
  background-color: var(--l1-clr);
  color: black;
  font-size: 1.3rem;
}
.l2 {
  background-color: var(--l2-clr);
  color: white;
  font-size: 1.2rem;
}
.l3 {
  background-color: var(--l3-clr);
  color: black;
  font-size: 1.1rem;
}
.l4 {
  background-color:  var(--l4-clr);
  color: white;
  font-size: 1rem;
}
.l5 {
  background-color:  var(--l5-clr);
  font-size: 1rem;
}
.l6 {
  background-color: var(--l6-clr);
  font-size: 1rem;
}
.l7 {
  background-color: var(--l7-clr);
  font-size: 1rem;
}
.l8 {
  background-color: var(--l8-clr),;
  color: black;
  font-size: 1rem;
}
.l8 {
  background-color: var(--l9-clr);
  color: white;
  font-size: 1rem;
}

.exp,
.ctr {
  padding: 3px 5px 3px 1.35rem;
  position: relative;
  margin: 0;
  border-bottom: 0.5px solid var(--border-color);
  border-right: 0.5px solid var(--border-color);
}

p.exp {
  border-bottom: 1px solid var(--border-color);
}

.exp::before {
  content: "\002B";
  position: absolute;
  left: 0;
  top: 0.25rem;
  font-size: 0.9em;
}
.ctr::before {
  content: "\002D";
  position: absolute;
  left: 0.2rem;
  top: 0.08rem;
}
.task {
  display: grid;
}

.task.selected,
.nb.selected {
  background-color: rgb(207, 255, 255);
}