style.css

:root {
  --color-white: #ffffff;
  --color-light-white: #fafafa;
  --color-little-white: #cccccc;
  --color-dark-white: #bdbdbd;
  --color-dark-grey: #4d4d4d;
  --color-grey: #616161;
  --color-light-grey: #7c7979;
  --color-black: #000000;
  --color-green: #4fd374;
  --color-red: #f97e7e;
  --color-blue: #7e99f9;

  --font-large: 48px;
  --font-medium: 38px;
  --font-regular: 24px;
  --font-small: 18px;
  --font-micro: 14px;

  --weight-bold: 700;
  --weight-semi-bold: 600;
  --weight-regular: 500;

  --size-border-radius: 4px;
  --animation-duration: 250ms;
}

body {
  margin: 0;
  font-family: "PT Serif", serif;
  background-color: var(--color-white);
}

ul {
  padding-left: 0;
}

li {
  list-style: none;
}

main {
  height: 100vh;
  max-width: 100vw;
  display: flex;
}

button {
  background-color: var(--color-light-white);
  border: 1px solid var(--color-dark-grey);
  border-radius: 4px;
  min-width: 24px;
  max-width: 24px;
  transition: all var(--animation-duration) ease-in-out;
}

button:hover {
  cursor: pointer;
}

#sideBar {
  flex-basis: 17%;
  min-width: 17%;
  max-width: 17%;
  display: flex;
  flex-direction: column;
  background-color: var(--color-light-white);
}

#sideBar_header {
  flex-basis: 8%;
  display: flex;
  align-items: flex-end;
  padding-top: 16px;
  padding-left: 12px;
}

#sideBar_header_icon {
  width: 42px;
  height: 42px;
  padding-left: 4px;
  padding-bottom: 6px;
}

#sideBar_header_icon:hover {
  cursor: pointer;
}

#sideBar_header_title {
  padding-left: 8px;
  font-size: var(--font-medium);
}

#sideBar_header_title:hover {
  cursor: pointer;
}

#sideBar_title {
  flex-basis: 2%;
  padding-top: 12px;
  padding-left: 12px;
  padding-right: 12px;
  display: flex;
  justify-content: space-between;
}

#sideBar_title_text {
  font-size: var(--font-small);
  color: var(--color-dark-grey);
}

#addRootDocumentButton {
  padding: 0px 8x;
}

#addRootDocumentButton:hover {
  background-color: var(--color-green);
}

#sideBar_documentList {
  display: flex;
  flex-direction: column;
  flex-basis: 90%;
  padding-top: 8px;
  overflow: auto;
}

.documentItem {
  display: flex;
  flex-direction: column;
  font-family: "Noto Sans KR", sans-serif;
}

.documentContent {
  padding-left: 12px;
  display: flex;
  margin: 4px 0px;
  font-size: var(--font-small);
  overflow: hidden;
  white-space: nowrap;
  transition: all var(--animation-duration) ease-in-out;
}

.documentContent:hover {
  cursor: pointer;
  border-color: var(--color-grey);
  background-color: var(--color-dark-white);
}

.spreadButton {
  margin-right: 4px;
}

.spreadButton:hover {
  background-color: var(--color-blue);
}

.documentTitle {
  flex-basis: 70%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.addChildDocumentButton {
  margin-left: 4px;
  margin-right: 8px;
}

.addChildDocumentButton:hover {
  background-color: var(--color-green);
}

.deleteDocumentButton {
  margin-right: 12px;
}

.deleteDocumentButton:hover {
  background-color: var(--color-red);
}

.childDocumentList {
  padding-left: 16px;
  flex-direction: column;
}

#editPage {
  flex-basis: 83%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#title {
  width: 80%;
  padding: 16px;
  margin-top: 48px;
  font-size: var(--font-medium);
  font-weight: var(--weight-semi-bold);
  background-color: var(--color-light-white);
  font-family: "Noto Sans KR", sans-serif;
  border: none;
}

#title:hover {
  cursor: text;
}

#content {
  width: 80%;
  height: 70%;
  padding: 16px;
  margin-top: 12px;
  font-size: var(--font-small);
  font-weight: var(--weight-regular);
  background-color: var(--color-light-white);
  font-family: "Noto Sans KR", sans-serif;
  border: none;
}

#content:hover {
  cursor: text;
}