style.css

html {
  padding: 0;
}

html,
body {
  margin: 0;
  border: 0;
  font-size: 14px;
  overflow: hidden;

  --stream-margin: 3rem;
  --stream-border-width: 1px;
  --body-padding: 1rem;
  --basic-bg-color: #9cffa020;
  --basic-darker-color: #3c9f4060;
  --basic-dark-color: #0c6f1090;
  --basic-black-color: #000000d0;
  --shadow-black-color: #00000020;
}

body {
  font-family: 'Roboto', sans-serif;
  background-color: #fdfbfe;
  padding: var(--body-padding);
  height: calc(100vh - var(--body-padding) * 2);
  display: flex;
  flex-direction: column;
}

.title {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 2rem;
  margin-top: 0;
  text-align: center;
}

.notifications-container {
  display: flex;
  flex-direction: column-reverse;
  gap: 0.25rem;
  overflow-y: auto;
  overflow-x: hidden;
  justify-content: left;
  position: relative;
  grid-auto-flow: dense;
}

.popup {
  flex: 1;
  display: none;
  grid-template-columns: 1fr 5rem;
  row-gap: 0.25rem;
  column-gap: 0.5rem;
  /* position: absolute;
  top: 2rem;
  left: 50%;
  transform: translateX(-50%); */
  width: calc(100% - 1rem);
  border-radius: 0.25rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  z-index: 100;
  opacity: 0;
  background-color: var(--basic-bg-color);
  border: 1px solid var(--basic-darker-color);
  color: var(--basic-dark-color);
  box-shadow: 3px 3px 5px 0px var(--shadow-black-color);
  pointer-events: none;
}

.popup > .popup-method {
  font-size: 1rem;
  color: var(--basic-dark-color);
  font-weight: bold;
  text-transform: capitalize;
}

.popup > .popup-timestamp {
  font-size: 0.75em;
  color: var(--basic-dark-color);
  opacity: 0.95;
  text-align: right;
}

.popup > .popup-message {
  color: var(--basic-black-color);
  font-size: 0.9em;
  grid-column: 1 / 3;
}

.popup.ok {
  filter: hue-rotate(0deg) brightness(1) saturate(1);
}

.popup.warn {
  filter: hue-rotate(300deg) brightness(1.1) saturate(1);
}

.popup.error {
  filter: hue-rotate(235deg) brightness(0.9) saturate(1.5);
}

.popup.show {
  display: grid;
  opacity: 0.8;
}

#main {
  display: flex;
  gap: 1rem;
  height: 100%;
}

#side-notes {
  width: 20rem;
  line-height: 1.5;
}

#side-notes ul {
  padding: 0;
  margin: 0;
  list-style-type: none;
}

#side-notes li {
  margin-bottom: 0.5rem;
  background: var(--basic-bg-color);
  border: 1px solid var(--basic-darker-color);
  padding: 0.75rem 1rem;
  border-radius: 0.25rem;
  margin: 0;
  margin-bottom: 1rem;
}

#url-used {
  color: var(--basic-dark-color);
  text-wrap: wrap;
  word-break: break-all;
  display: block;
  margin: 0.5rem 0;
  line-height: 1;
}

#tracker-container {
  padding: 0.25rem 0.5rem;
  font-size: 1rem;
  background-color: var(--basic-dark-color);
  z-index: 10;
  border-radius: 0.25rem;
  color: #ddfbde;
  display: none;
  width: max-content;
  position: absolute;
  top: 1rem;
  right: 0.25rem;
  box-shadow: 3px 3px 5px 0px var(--shadow-black-color);
}

#tracker {
  mix-blend-mode: hard-light;
  filter: drop-shadow(0 0 2px var(--shadow-black-color));
  font-weight: bold;
}

#container {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  flex: 1;
}

#capture {
  position: relative;
  height: 100%;
}

#capture > #rectangle-overlay,
#capture > #guides-overlay {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
}

#stream {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-left: auto;
  margin-right: auto;
  border: var(--stream-border-width) solid var(--basic-darker-color);
  font-size: 3rem;
  height: 100%;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

#controls {
  display: flex;
  flex-direction: column;
  align-items: start;
  justify-content: start;
  /* items spacing */
  gap: 3rem;
}

#actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 100%;
}

#actions button {
  padding: 0.75rem 1rem;
  font-size: 1.25rem;
  border: 1px outset var(--basic-darker-color);
  box-shadow: 0.15rem 0.1rem 0.25rem 0 var(--basic-dark-color);
  border-radius: 0.75rem;
  background-color: var(--basic-bg-color);
  color: var(--basic-black-color);
  cursor: pointer;
}

#actions button:active {
  border-style: inset;
  box-shadow: 0.1rem 0.05rem 0.15rem 0 var(--basic-dark-color);
}

#settings {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 100%;
}

#settings label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

#copy-canvas {
  display: none;
}

footer {
  margin-top: 1rem;
  padding: 0.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--basic-black-color);
  opacity: 0.65;
  filter: saturate(1.5);
  background-color: var(--basic-bg-color);
}

footer p {
  margin: 0;
  padding: 0;
}

footer a {
  color: var(--basic-dark-color);
  filter: saturate(2) hue-rotate(-10deg);
  text-decoration: none;
}
footer a:hover {
  filter: saturate(2) brightness(1.5) hue-rotate(-20deg);
}