@font-face {
  font-family: "Share Tech Mono";
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url("./assets/fonts/share-tech-mono/share-tech-mono-latin-400-normal.woff2")
    format("woff2");
}

:root {
  color-scheme: light;
  --bg: #fff;
  --text: #000;
  --muted: #777;
  --loading-fill: #ececec;
  --loading-ink: #858585;
  --button-size: 74px;
  --minimum-text-size: 21px;
  --app-height: 100dvh;
  --app-top: 0px;
  --ui-font:
    "Avenir Next",
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  --cipher-font:
    "Share Tech Mono",
    "OCR A Std",
    "SFMono-Regular",
    Menlo,
    Consolas,
    monospace;
  --decoded-font:
    "Noto Serif SC",
    "Songti SC",
    STSong,
    SimSun,
    serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #000;
  --text: #fff;
  --muted: #888;
  --loading-fill: #181818;
  --loading-ink: #7a7a7a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: var(--app-height);
  background: var(--bg);
  color: var(--text);
}

body {
  overflow: hidden;
  font-family: var(--ui-font);
}

[hidden] {
  display: none !important;
}

main {
  position: fixed;
  top: var(--app-top);
  left: 0;
  width: 100%;
  height: var(--app-height);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.loading-progress {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--loading-fill);
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

#app:not([data-state="loading"]):not([data-state="failed"]) .loading-progress {
  visibility: hidden;
}

.theme-toggle {
  position: fixed;
  top: calc(var(--app-top) + max(14px, env(safe-area-inset-top)));
  right: max(14px, env(safe-area-inset-right));
  z-index: 2;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 50%, transparent);
  color: var(--text);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  cursor: pointer;
  display: inline-grid;
  place-items: center;
  transition:
    transform 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
}

.theme-toggle:active {
  transform: translateY(1px) scale(0.98);
}

.theme-toggle svg {
  width: 19px;
  height: 19px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.34;
  transition: opacity 160ms ease;
}

.theme-toggle:hover svg {
  opacity: 0.52;
}

#app:is([data-state="loading"], [data-state="failed"]) .theme-toggle {
  color: var(--loading-ink);
  mix-blend-mode: normal;
}

.loading {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 8px;
  justify-items: center;
  text-align: center;
  color: var(--loading-ink);
  font-family: var(--cipher-font);
  font-size: var(--minimum-text-size);
  font-weight: 400;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
  text-transform: uppercase;
}

.loading-detail {
  max-width: min(78vw, 420px);
  color: inherit;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0;
  opacity: 0.62;
}

.stage {
  position: relative;
  width: 100%;
  height: var(--app-height);
  --text-inline-space: clamp(18px, 5vw, 72px);
  --text-top-space: max(64px, calc(env(safe-area-inset-top) + 50px));
  --text-bottom-space: max(136px, calc(env(safe-area-inset-bottom) + 122px));
}

.text-viewport {
  --edge-fade-size: clamp(28px, 7vh, 72px);
  position: absolute;
  inset: 0;
  width: 100%;
  height: var(--app-height);
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--text) 24%, transparent) transparent;
  cursor: text;
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 0,
    #000 var(--edge-fade-size),
    #000 calc(100% - var(--edge-fade-size)),
    transparent 100%
  );
  mask-image: linear-gradient(
    to bottom,
    transparent 0,
    #000 var(--edge-fade-size),
    #000 calc(100% - var(--edge-fade-size)),
    transparent 100%
  );
}

.text-viewport::-webkit-scrollbar {
  width: 8px;
}

.text-viewport::-webkit-scrollbar-track {
  background: transparent;
}

.text-viewport::-webkit-scrollbar-thumb {
  border: 2px solid transparent;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 24%, transparent);
  background-clip: padding-box;
}

.text-frame {
  position: relative;
  width: min(calc(100% - (var(--text-inline-space) * 2)), 1280px);
  min-height: 100%;
  margin-inline: auto;
  padding-block: var(--text-top-space) var(--text-bottom-space);
  display: flex;
  align-items: center;
  justify-content: center;
}

.text-content {
  width: 100%;
  overflow-x: hidden;
  overflow-y: hidden;
  outline: none;
  border: 0;
  background: transparent;
  color: var(--text);
  display: block;
  resize: none;
  appearance: none;
  font-size: 128px;
  font-weight: 520;
  line-height: 1.18;
  letter-spacing: 0;
  text-align: center;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
  caret-color: var(--text);
  padding-block: 0.12em 0.18em;
  -webkit-user-select: text;
  user-select: text;
}

#sourceText {
  font-family: var(--cipher-font);
  font-weight: 400;
  font-variant-ligatures: none;
  line-height: 1.1;
  text-transform: uppercase;
}

.decoded-copy {
  font-family: var(--decoded-font);
  font-weight: 400;
  font-synthesis: none;
  line-height: 1.28;
}

.text-measure {
  position: absolute;
  top: 0;
  inset-inline: 0;
  visibility: hidden;
  pointer-events: none;
}

.decode-char {
  display: inline-block;
  width: 1em;
  text-align: center;
  transform-origin: 50% 62%;
}

.decode-char.is-whitespace {
  width: auto;
}

.decode-char.is-scrambling {
  font-family: var(--decoded-font);
  opacity: calc(0.82 - var(--trail-distance, 0) * 0.1);
  filter: blur(calc(0.25px + var(--trail-distance, 0) * 0.82px));
  transform: scale(calc(1 - var(--trail-distance, 0) * 0.022));
  will-change: filter, opacity, transform;
}

.decode-tail {
  display: contents;
}

.decode-char.is-resolved {
  animation: character-resolve 180ms ease-out both;
  will-change: filter, opacity, transform;
}

#decodedText.is-decrypting,
#decodedText.is-destroying {
  cursor: progress;
}

#decodedText.is-destroying {
  user-select: none;
}

#decodedText.is-destroying > .decode-char.is-destroying {
  animation: character-blur-destroy 280ms cubic-bezier(0.4, 0, 0.8, 0.2) forwards;
  will-change: filter, opacity, transform;
}

.text-content:empty::before {
  content: "\00a0";
}

#sourceText.is-empty {
  caret-color: transparent;
}

.empty-input-caret {
  position: absolute;
  top: calc(
    var(--text-top-space) +
      (100% - var(--text-top-space) - var(--text-bottom-space)) / 2
  );
  left: 50%;
  width: 5px;
  height: 0.9em;
  min-height: 42px;
  max-height: 116px;
  translate: -50% -50%;
  background: var(--text);
  font-size: 128px;
  pointer-events: none;
  animation: blink 1s steps(1) infinite;
}

.text-content.is-focused:not(textarea):not([hidden])::after {
  content: "";
  width: 5px;
  height: 0.9em;
  margin-left: 0.08em;
  display: inline-block;
  vertical-align: -0.08em;
  background: var(--text);
  animation: blink 1s steps(1) infinite;
}

.action {
  position: absolute;
  left: 50%;
  bottom: max(30px, calc(env(safe-area-inset-bottom) + 18px));
  z-index: 2;
  translate: -50% 0;
  width: var(--button-size);
  height: var(--button-size);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  border: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 50%, transparent);
  color: var(--bg);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  cursor: pointer;
  transform-origin: 50% 50%;
  transition:
    transform 260ms cubic-bezier(0.2, 0.8, 0.2, 1),
    background 180ms ease,
    color 180ms ease,
    opacity 220ms ease;
}

.action.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.72);
}

.action:disabled {
  cursor: default;
}

.action:not(.is-hidden):hover {
  transform: scale(1.04);
}

.action:not(.is-hidden):active {
  transform: scale(0.96);
}

.action:focus-visible,
.theme-toggle:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 6px;
}

.text-content:focus-visible {
  outline: none;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@keyframes character-resolve {
  0% {
    opacity: 0.45;
    filter: blur(1.4px);
    transform: scale(0.72);
  }
  55% {
    opacity: 1;
    filter: blur(0.25px);
    transform: scale(1.08);
  }
  100% {
    opacity: 1;
    filter: blur(0);
    transform: scale(1);
  }
}

@keyframes character-blur-destroy {
  0% {
    opacity: 1;
    filter: blur(0);
    transform: scale(1);
  }
  35% {
    opacity: 0.82;
    filter: blur(2px);
    transform: scale(1.01);
  }
  100% {
    opacity: 0;
    filter: blur(14px);
    transform: scale(1.08);
  }
}

.action svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
  stroke-width: 3.25;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.clear-label {
  display: none;
  font-size: 18px;
  font-weight: 520;
  letter-spacing: 0;
}

.shortcut-label {
  display: block;
  font-family: var(--cipher-font);
  font-size: 10px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
  opacity: 0.72;
}

.action.is-clear {
  width: var(--button-size);
  min-width: 0;
  height: var(--button-size);
  padding: 0;
  background: color-mix(in srgb, var(--bg) 50%, transparent);
  color: var(--text);
}

.action.is-clear svg {
  display: none;
}

.action.is-clear .clear-label {
  display: block;
}

@media (max-width: 720px) {
  :root {
    --button-size: 58px;
  }

  .stage {
    padding: 0;
    --text-inline-space: 18px;
    --text-top-space: max(54px, calc(env(safe-area-inset-top) + 42px));
    --text-bottom-space: max(112px, calc(env(safe-area-inset-bottom) + 98px));
  }

  .text-viewport {
    --edge-fade-size: 42px;
    width: 100%;
  }

  .text-content {
    font-size: 128px;
  }

  .action {
    bottom: max(24px, calc(env(safe-area-inset-bottom) + 14px));
    width: 62px;
    height: 62px;
  }

  .action svg {
    width: 26px;
    height: 26px;
  }

  .action.is-clear {
    min-width: 0;
    height: 62px;
    padding: 0;
  }

  .clear-label {
    font-size: 16px;
  }

  .shortcut-label {
    font-size: 9px;
  }

  .theme-toggle {
    width: 34px;
    height: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }

  .text-content.is-focused:not(textarea):not([hidden])::after {
    animation: none;
  }

  .empty-input-caret {
    animation: none;
  }

}