* {
  box-sizing: border-box;
  margin: 0;
}
body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.drawing-area {
  display: flex;
  position: absolute;
  top: 0;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: flex-start;
  background-color: #333;
  width: 100%;
  height: 100vh;
  z-index: -1;
}
.drawing-area .click-instruction {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  pointer-events: none;
  z-index: -10;
}
.block {
  position: absolute;
  width: 50px;
  height: 50px;
  border: 5px solid rgb(201, 163, 211);
  border-radius: 50%;
  margin-top: -3px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  cursor: pointer;
  z-index: 10;
}
.outline-btn {
  border: 2px solid rgb(216, 149, 102);
  /* border: none; */
  background-color: transparent;
  border-radius: 4px;
  cursor: pointer;
  outline: none;
  color: #fff;
  padding: 6px 10px;
  box-shadow: 1px 2px 3px 1px #333;
}
.outline-btn:active {
  box-shadow: none;
}
.outline-btn:disabled {
  box-shadow: none;
}
.reset-btn {
  margin-left: 12px;
}
.line {
  height: 5px;
  background-color: lemonchiffon;
  position: absolute;
  transform-origin: top left;
  text-align: center;
  color: #eee;
  line-height: 2rem;
}
.line .edge-weight {
  padding: 0 10px;
  width: max-content;
  margin: auto;
}
header {
  width: 100%;
  padding: 20px;
  background-color: #a81010;
  text-align: center;
}
header .title {
  font-size: 2rem;
  color: #fff;
}
header .title a:nth-child(2) {
  width: 40px;
  height: 40px;
  position: absolute;
  right: 10px;
}
header .title a {
  text-decoration: none;
  color: #fff;
}
a > img {
  width: 100%;
  height: 100%;
}
main h3 {
  padding: 20px;
  font-weight: 1.2rem;
}
main ul > li {
  padding: 0.5rem;
}
.options {
  margin-top: 20px;
  display: flex;
  justify-content: space-around;
}
.options input {
  outline: 0;
  padding: 6px;
  width: 100px;
}
.path {
  position: absolute;
  bottom: 0;
  right: 0;
  height: min-content;
  color: #fff;
  overflow-x: scroll;
  width: 40%;
  min-width: 300px;
  background-color: rgb(0, 0, 0);
  transition-duration: 1s;
}
.path::-webkit-scrollbar {
  display: none;
}