style.css

body {
  margin: 0;
  font-family: monospace;
  --color-primary: #f71735;
  --color-disabled-gray: #c6c6c6;
  --color-text-gray: #444;
  --color-background: #f3f1f1;
  --spacing-xs: 4px;
  --spacing-s: 8px;
  --spacing-m: 12px;
  --spacing-l: 16px;
  --spacing-xl: 24px;
  --border-large: 8px ridge var(--color-primary);
  background-color: var(--color-background);
}

main {
  padding-top: var(--spacing-s);
  padding-left: var(--spacing-s);
  padding-right: var(--spacing-s);
}

@media screen and (min-width: 768px) {
  main {
    padding-left: var(--spacing-l);
    padding-right: var(--spacing-l);
  }
}

@media screen and (min-width: 1100px) {
  main {
    display: flex;
    flex-wrap: wrap;
  }
  #left-col {
    width: 70%;
    border-bottom: var(--border-large);
  }
  #gallery {
    width: 100%;
  }
}

button,
input {
  font-family: inherit; /* 1 */
  font-size: 100%; /* 1 */
  line-height: 1.15; /* 1 */
  margin: 0; /* 2 */
}

h1,
h2,
h3,
h4 {
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: var(--spacing-s);
}

h3,
h4 {
  color: var(--color--text-gray);
}

h1 {
  font-family: sans-serif;
  font-size: 24px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  font-style: italic;
  position: relative;
  border-bottom: var(--border-large);
  margin-bottom: var(--spacing-l);
}

h2 {
  font-size: clamp(24px, 3vw, 36px);
}

h3 {
  margin-top: 0;
  margin-bottom: 0;
}

@media screen and (min-width: 400px) {
  h1 {
    font-size: clamp(24px, 8vw, 60px);
  }
}

@media screen and (min-width: 1100px) {
  h1 {
    font-size: 60px;
  }
}

h1:hover {
  -webkit-text-stroke: 2px var(--color-primary);
  color: white;
  animation: glitch-skew 0.8s linear infinite;
}

button {
  appearance: none;
  background-color: white;
  color: var(--color-primary);
  font-weight: bold;
  font-size: 14px;
  padding: var(--spacing-s) var(--spacing-m);
  border: 8px outset var(--color-primary);
  cursor: pointer;
  transition: all 0.3s ease-in-out;
}

button:hover {
  background-color: var(--color-primary);
  color: white;
}

button:active {
  border: 8px inset var(--color-primary);
}

button:disabled {
  background-color: var(--color-disabled-gray);
  color: white;
  border: 8px solid var(--color-disabled-gray);
  cursor: not-allowed;
}

button#annotations-delete-all {
  margin-top: auto;
}

#visual {
  display: flex;
  flex-wrap: wrap;
}

#canvas-container {
  display: flex;
  justify-content: center;
  position: relative;
  width: 100%;
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: var(--spacing-s);
}

#canvas-container-inner {
  position: relative;
  width: 100%;
  max-width: 600px;
  padding-bottom: min(100%, 600px);
  background: white;
  display: flex;
  justify-content: center;
  align-items: center;
}

#image-details {
  padding-bottom: var(--spacing-s);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  border-bottom: 2px solid var(--color-primary);
}

@media screen and (min-width: 768px) {
  #image-details {
    flex-wrap: nowrap;
  }
}

#image-titles {
  margin-bottom: var(--spacing-s);
}

@media screen and (min-width: 768px) {
  #image-titles {
    margin-bottom: 0;
  }
}

#image-nav {
  align-self: flex-end;
}

canvas {
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
}

#canvas-empty-state {
  position: absolute;
  top: 50%;
  display: block;
  z-index: 1;
  cursor: pointer;
}

#image-controls {
  padding-bottom: var(--spacing-s);
  border-bottom: var(--border-large);
  margin-bottom: var(--spacing-l);
}

@media screen and (min-width: 1100px) {
  #image-controls {
    border-bottom: none;
  }
}

#image-upload-input {
  opacity: 0;
  width: 0;
  padding: 0;
}

#annotations {
  border-bottom: var(--border-large);
  padding-bottom: var(--spacing-l);
  margin-bottom: var(--spacing-l);
}

@media screen and (min-width: 1100px) {
  #annotations {
    width: calc(30% - 24px);
    margin-left: var(--spacing-xl);
    padding-bottom: var(--spacing-s);
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
  }
}

#annotations-list,
#gallery-list {
  list-style: none;
  padding-left: 0;
}

.annotationsListItem {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xs);
}

.annotationsListItem span {
  display: inline-block;
  padding: var(--spacing-s);
  color: var(--color-primary);
  font-weight: bold;
  cursor: text;
  transition: all 0.3s ease-in-out;
  border: 1px solid transparent;
  width: 100%;
}
.annotationsListItem span:focus {
  outline: none;
  color: white;
  border: 1px solid var(--color-primary);
  background: var(--color-primary);
}

.annotationsListItem button {
  border: none;
  background-color: var(--color-background);
}
.annotationsListItem button:hover {
  background-color: var(--color-primary);
}

#gallery {
  margin-top: var(--spacing-l);
}

@media screen and (min-width: 1100px) {
  #gallery {
  }
}

#gallery-list {
  display: grid;
  gap: var(--spacing-s);
  grid-template-columns: repeat(2, 1fr);
}
@media screen and (min-width: 768px) {
  #gallery-list {
    grid-template-columns: repeat(4, 1fr);
  }
}
@media screen and (min-width: 1100px) {
  #gallery-list {
    grid-template-columns: repeat(6, 1fr);
  }
}

#gallery-list li {
  display: block;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
  overflow: hidden;
  font-size: 10px;
}
#gallery-list li:hover {
  color: var(--color-primary);
}
#gallery-list li img {
  max-width: 100%;
  transition: all 0.3s ease-in-out;
}
#gallery-list li:hover img {
  transform: scale(1.1);
}

@keyframes glitch-skew {
  0% {
    transform: skew(-4deg);
  }
  10% {
    transform: skew(-3deg);
  }
  20% {
    transform: skew(-3deg);
  }
  30% {
    transform: skew(5deg);
  }
  40% {
    transform: skew(-2deg);
  }
  50% {
    transform: skew(-4deg);
  }
  60% {
    transform: skew(2deg);
  }
  70% {
    transform: skew(2deg);
  }
  80% {
    transform: skew(4deg);
  }
  90% {
    transform: skew(2deg);
  }
}