* {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --hue: 223;
  --sat: 10%;
  --light-gray1: hsl(var(--hue), var(--sat), 95%);
  --light-gray2: hsl(var(--hue), var(--sat), 90%);
  --light-gray5: hsl(var(--hue), var(--sat), 75%);
  --light-gray7: hsl(var(--hue), var(--sat), 65%);
  --dark-gray3: hsl(var(--hue), var(--sat), 35%);
  --dark-gray5: hsl(var(--hue), var(--sat), 25%);
  --dark-gray8: hsl(var(--hue), var(--sat), 10%);
  --dark-gray9: hsl(var(--hue), var(--sat), 5%);
  --primary: hsl(var(--hue), 90%, 50%);
  --primary-t: hsla(var(--hue), 90%, 50%, 0);
  --hue-danger: 3;
  --danger1: hsl(var(--hue-danger), 90%, 35%);
  --danger2: hsl(var(--hue-danger), 90%, 65%);
  --hue-success: 133;
  --success1: hsl(var(--hue-success), 90%, 35%);
  --success2: hsl(var(--hue-success), 90%, 65%);
  --trans-dur: 0.3s;
  --trans-timing: cubic-bezier(0.65, 0, 0.35, 1);
  color-scheme: light dark;
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.25rem);
}

body,
button,
input,
textarea {
  color: var(--dark-gray9);
  font: 1em/1.5 "DM Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  body,
  button,
  input,
  textarea {
    color: var(--light-gray1);
  }
}

body {
  background-color: var(--light-gray1);
  display: grid;
  height: 100vh;
  transition: background-color var(--trans-dur), color var(--trans-dur);
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: var(--dark-gray9);
  }
}

.icon {
  display: block;
  overflow: visible;
  width: 1em;
  height: auto;
}
.icon--danger, .icon--neutral, .icon--success {
  transition: color var(--trans-dur);
}
.icon--danger {
  color: var(--danger1);
}
@media (prefers-color-scheme: dark) {
  .icon--danger {
    color: var(--danger2);
  }
}
.icon--neutral {
  color: var(--dark-gray3);
}
@media (prefers-color-scheme: dark) {
  .icon--neutral {
    color: var(--light-gray7);
  }
}
.icon--success {
  color: var(--success1);
}
@media (prefers-color-scheme: dark) {
  .icon--success {
    color: var(--success2);
  }
}
.icon--lg {
  width: 3em;
}

.i2a {
  container: main/inline-size;
  margin: auto;
  padding: 1.5em 0;
  width: calc(100vw - 3em);
  max-width: 48em;
}
.i2a__button, .i2a__input, .i2a__upload, .i2a__textarea {
  outline: transparent;
  transition: background-color var(--trans-dur), box-shadow calc(var(--trans-dur) / 2), color var(--trans-dur), opacity var(--trans-dur);
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
}
.i2a__button:disabled, .i2a__input:disabled, .i2a__upload:disabled, .i2a__textarea:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}
.i2a__button {
  background-color: var(--dark-gray9);
  border-radius: 0.25em;
  box-shadow: 0 0 0 1px var(--light-gray1), 0 0 0 4px var(--primary-t);
  color: var(--light-gray1);
  cursor: pointer;
  display: flex;
  gap: 1ch;
  justify-content: center;
  align-items: center;
  min-width: 2.25em;
  min-height: 2.25em;
  padding: 0.375em 0.625em;
  position: relative;
}
@media (prefers-color-scheme: dark) {
  .i2a__button {
    background-color: var(--light-gray1);
    box-shadow: 0 0 0 1px var(--dark-gray9), 0 0 0 4px var(--primary-t);
    color: var(--dark-gray9);
  }
}
.i2a__button:not(:disabled):hover {
  background-color: var(--dark-gray5);
}
@media (prefers-color-scheme: dark) {
  .i2a__button:not(:disabled):hover {
    background-color: var(--light-gray5);
  }
}
.i2a__button:not(:disabled):focus-visible {
  box-shadow: 0 0 0 1px var(--light-gray1), 0 0 0 4px var(--primary);
}
@media (prefers-color-scheme: dark) {
  .i2a__button:not(:disabled):focus-visible {
    box-shadow: 0 0 0 1px var(--dark-gray9), 0 0 0 4px var(--primary);
  }
}
.i2a__button-tip {
  animation: tip-fade 0.75s linear forwards;
  background-color: var(--dark-gray9);
  border-radius: 0.25rem;
  color: var(--light-gray1);
  font-size: 0.75em;
  margin-bottom: 0.375rem;
  padding: 0.125rem 0.375rem;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  transition: background-color var(--trans-dur), color var(--trans-dur);
}
@media (prefers-color-scheme: dark) {
  .i2a__button-tip {
    background-color: var(--light-gray1);
    color: var(--dark-gray9);
  }
}
.i2a__button:has(.i2a__button-tip), .i2a__button:has(.i2a__button-tip):not(:disabled):hover {
  background-color: transparent;
}
.i2a__drop {
  border: 0.125em dashed var(--light-gray7);
  border-radius: 0.25em;
  display: grid;
  gap: 0.75em;
  place-items: center;
  padding: 1.5em;
  text-align: center;
  transition: background-color var(--trans-dur), border var(--trans-dur);
}
@media (prefers-color-scheme: dark) {
  .i2a__drop {
    border-color: var(--dark-gray3);
  }
}
.i2a__drop--over {
  background-color: var(--light-gray2);
}
@media (prefers-color-scheme: dark) {
  .i2a__drop--over {
    background-color: var(--dark-gray8);
  }
}
.i2a__input, .i2a__textarea {
  background-color: transparent;
  border-radius: 0.25rem;
  box-shadow: 0 0 0 1px var(--light-gray7) inset, 0 0 0 4px var(--primary-t);
  display: block;
  width: 100%;
}
@media (prefers-color-scheme: dark) {
  .i2a__input, .i2a__textarea {
    box-shadow: 0 0 0 1px var(--dark-gray3) inset, 0 0 0 4px var(--primary-t);
  }
}
.i2a__input:hover, .i2a__textarea:hover {
  box-shadow: 0 0 0 1px var(--light-gray7) inset, 0 0 0 4px var(--primary-t);
}
@media (prefers-color-scheme: dark) {
  .i2a__input:hover, .i2a__textarea:hover {
    box-shadow: 0 0 0 1px var(--dark-gray3) inset, 0 0 0 4px var(--primary-t);
  }
}
.i2a__input:focus-visible, .i2a__textarea:focus-visible {
  box-shadow: 0 0 0 1px var(--light-gray7) inset, 0 0 0 4px var(--primary);
}
@media (prefers-color-scheme: dark) {
  .i2a__input:focus-visible, .i2a__textarea:focus-visible {
    box-shadow: 0 0 0 1px var(--dark-gray3) inset, 0 0 0 4px var(--primary);
  }
}
.i2a__input {
  padding: 0.375em 0.75em;
  min-width: 5.25em;
}
.i2a__label {
  gap: 0 1ch;
  font-weight: 500;
  align-items: center;
}
.i2a__label, .i2a__label-wrap {
  display: flex;
  flex-wrap: wrap;
}
.i2a__label-wrap {
  justify-content: space-between;
  margin-bottom: 0.75em;
}
.i2a__note {
  color: var(--dark-gray3);
  font-size: 0.875em;
  line-height: 1.7;
  transition: color var(--trans-dur);
}
@media (prefers-color-scheme: dark) {
  .i2a__note {
    color: var(--light-gray7);
  }
}
.i2a__preloader {
  display: flex;
  gap: 0.375em;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.i2a__preloader-dot {
  animation: dot-fade 1s linear infinite;
  background-color: currentColor;
  border-radius: 50%;
  width: 1em;
  height: 1em;
}
.i2a__preloader-dot:nth-child(2) {
  animation-delay: 0.1s;
}
.i2a__preloader-dot:nth-child(3) {
  animation-delay: 0.2s;
}
.i2a__status {
  display: flex;
  gap: 1ch;
  justify-content: center;
  align-items: flex-start;
}
.i2a__status--danger {
  color: var(--danger1);
  transition: color var(--trans-dur);
}
@media (prefers-color-scheme: dark) {
  .i2a__status--danger {
    color: var(--danger2);
  }
}
.i2a__status .icon {
  margin: 0.25em 0;
}
.i2a__textarea {
  direction: ltr;
  flex: 0 0 auto;
  font-size: 0.5em;
  line-height: 1;
  margin: auto;
  overflow: hidden;
  resize: none;
  width: calc(100% - 0.25rem);
  min-height: 6rem;
}
.i2a__textarea-scroll {
  display: flex;
  overflow: auto;
  padding: 0.25em;
}
.i2a__textarea-scroll:after {
  content: "";
  display: block;
  flex-shrink: 0;
  width: 0.25em;
}
.i2a__textarea-wrap {
  margin: -0.25em;
  margin-inline-end: -0.5em;
  position: relative;
}
.i2a__top {
  display: grid;
  gap: 0.75em 1.5em;
  margin-bottom: 1.5em;
}
.i2a__upload {
  overflow: hidden;
  position: absolute;
  width: 1px;
  height: 1px;
}

@container main (min-width: 600px) {
  .i2a__status {
    grid-row: 2;
  }
  .i2a__top {
    grid-template-columns: 2fr 1fr;
  }
}
/* Animations */
@keyframes dot-fade {
  from, 80%, to {
    opacity: 1;
  }
  40% {
    opacity: 0;
  }
}
@keyframes tip-fade {
  from, to {
    opacity: 0;
  }
  20%, 80% {
    opacity: 1;
  }
}