style.css

:root {
  --modal-container-background: 0 0 0 / 0.2; /* ; 91 112 131 / 0.4 */
  --modal-background: 255 255 255; /* 21 32 43 ; 0 0 0 */
  --diff-modal-heading-item: 15 20 25; /* 239 243 244 */
  --diff-modal-close-background: 0 0 0; /* 239 243 244 */
  --diff-tweet-border: 0 0 0; /* 56 68 77 ; 47 51 54 */
  --diff-tweet-background-hover: 0 0 0; /* 255 255 255 */
  --diff-tweet-text: var(--diff-tweet-background-hover);
}

.diff-color {
  color: rgb(228 34 215 / 1) !important;
}

.diff-bg-color {
  background-color: rgb(228 34 215 / 0.1) !important;
}

.diff-modal-container {
  position: absolute;

  width: 100vw;
  height: 100vh;

  display: flex;
  justify-content: center;

  background-color: rgb(var(--modal-container-background));

  overflow: hidden;
}

.diff-modal {
  box-sizing: border-box;

  position: absolute;
  top: 5%;

  min-width: 420px;
  max-width: 80vw;
  max-height: 90vh;

  flex-shrink: 1;
  display: flex;
  flex-basis: auto;
  flex-direction: column;
  align-items: stretch;

  background-color: rgb(var(--modal-background) / 1);

  border-radius: 16px;

  overflow-y: auto;
}

.diff-modal-header,
.diff-modal-content {
  box-sizing: border-box;
}

.diff-modal-header {
  position: sticky;
  top: 0;

  width: 100%;
  height: 53px;

  padding: 0 16px;

  display: flex;
  align-items: center;

  background-color: rgb(var(--modal-background) / 1);
  backdrop-filter: blur(12px);

  z-index: 1;
}

.diff-modal-close-container {
  min-width: 56px;
  min-height: 32px;

  display: flex;
  align-items: center;
  align-self: stretch;

  cursor: pointer;
}

.diff-modal-close {
  width: 36px;
  height: 36px;

  display: flex;
  align-items: center;
  justify-content: center;

  margin-left: calc(-8px);

  border-radius: 9999px;

  transition-duration: 0.2s;
  background-color: rgb(var(--diff-modal-close-background) / 0);
}

.diff-modal-close:hover {
  background-color: rgb(var(--diff-modal-close-background) / 0.2);
}

.diff-modal-close-svg {
  width: 20px;
  height: 20px;
  color: rgb(var(--diff-modal-heading-item) / 1);
  fill: currentcolor;
}

h2.diff-modal-title,
.diff-modal-content h2 {
  font-family: "TwitterChirp", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 24px;
  color: rgb(var(--diff-modal-heading-item) / 1);
  font-size: 20px;
  font-weight: 700;
  overflow-wrap: break-word;
  min-width: 0px;
  padding: 2px 0;
  text-overflow: ellipsis;
  overflow: hidden;
  max-width: 100%;
}

.diff-modal-content {
  width: 100%;
  height: 100%;
  padding: 4px 16px 16px;
}

.diff-tweet {
  max-width: 598px;
  cursor: pointer;
  padding: 8px;
  border-bottom: 1px solid rgb(var(--diff-tweet-border) / 0.1);
}

.diff-tweet:not(.diff-tweet-disabled):not(.diff-tweet-noselect):hover {
  background-color: rgb(var(--diff-tweet-background-hover) / 0.03);
}

.diff-tweet-disabled {
  opacity: 0.5;
  cursor: default;
  user-select: none;
}

.diff-tweet-noselect {
  cursor: default;
}

.diff-tweet-text {
  color: rgb(var(--diff-tweet-text) / 1) !important;
}

.diff-add {
  background-color: rgb(32 204 32 / 0.2);
  border-radius: 2px;
}

.diff-remove {
  background-color: rgba(221 40 40 / 0.2);
  border-radius: 2px;
}