@charset "UTF-8";
:root {
  --bg: #fffaf0;
  --fg: #ffffff;
  --txt: #5a3e36;
  --txt-light: rgba(94, 50, 38, 0.8);
  --link: #e67e22;
  --link-hover: #d35400;
  --header-txt: #8b4513;
  --preview-bg: #fffefc;
  --canvas-bg: #fffdf9;
  --input-bg: #ffffff;
  --input-border: rgba(230, 126, 34, 0.3);
  --input-border-hover: rgba(230, 126, 34, 0.6);
  --input-border-focus: #e67e22;
  --input-track-bg: rgba(229, 194, 112, 0.3);
  --input-switch-bg: rgba(233, 203, 134, 0.4);
  --input-switch-bg-active: #f39c12;
  --input-switch-fg: #f1c40f;
  --input-switch-fg-hover: #fad544;
  --btn-bg: #f39c12;
  --btn-color: #ffffff;
  --btn-border: #e67e22;
  --btn-hover: #e67e22;
  --btn-focus: #d35400;
  --btn-focus-outline: rgba(243, 156, 18, 0.4);
  --shadow-color: rgba(202, 143, 46, 0.3);
  --shadow: 0px 3px 6px var(--shadow-color);
  --icon: "🌝";
  --error: #e74c3c;
  --transition-speed: 0.3s;
}

[data-theme=dark] {
  --bg: #1a1a1a;
  --fg: #2d2d2d;
  --txt: #f5e6d0;
  --txt-light: rgba(245, 230, 208, 0.7);
  --link: #f1c40f;
  --link-hover: #fad544;
  --header-txt: #ffd89b;
  --preview-bg: #333333;
  --canvas-bg: #404040;
  --input-bg: #383838;
  --input-border: rgba(241, 196, 15, 0.4);
  --input-border-hover: rgba(241, 196, 15, 0.7);
  --input-border-focus: #f1c40f;
  --input-track-bg: rgba(158, 117, 1, 0.6);
  --input-switch-bg: rgba(183, 136, 2, 0.6);
  --input-switch-bg-active: #f39c12;
  --input-switch-fg: #f1c40f;
  --input-switch-fg-hover: #fad544;
  --btn-bg: #f39c12;
  --btn-color: #1a1a1a;
  --btn-border: #f1c40f;
  --btn-hover: #e67e22;
  --btn-focus: #d35400;
  --btn-focus-outline: rgba(241, 196, 15, 0.4);
  --shadow-color: rgba(0, 0, 0, 0.5);
  --shadow: 0px 4px 8px var(--shadow-color);
  --icon: "🌚";
  --error: #e74c3c;
}

body {
  font-size: 11pt;
  font-family: "Work Sans", "Segoe UI", sans-serif;
  background-color: var(--bg);
  color: var(--txt);
  transition: background-color var(--transition-speed), color var(--transition-speed);
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

p {
  margin: 0.5em 0;
}

a,
:any-link {
  color: var(--link);
  text-decoration: none;
  transition: color var(--transition-speed);
  border-radius: 2px;
}
a:hover,
:any-link:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

img {
  max-width: 90%;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

img:not([src]) {
  display: none;
}

img:hover {
  transform: translateY(-2px);
  box-shadow: 0px 6px 12px var(--shadow-color);
}

.error-message {
  font-weight: bold;
  color: var(--error);
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-5px); }
  40%, 80% { transform: translateX(5px); }
}

.control-group {
  display: flex;
  width: 100%;
  align-items: center;
  margin-bottom: 0.85rem;
  gap: 6px;
}

.control-group-s {
  min-width: 32.8%;
}

.control-group-l {
  flex-grow: 1;
}

.control-grouped-left {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.control-grouped-right {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.control-grouped-center {
  border-radius: 0;
}

[type=range],
[type=checkbox] {
  box-shadow: none;
}

.control-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 0.7em;
  border-radius: 0.7em;
  background: var(--input-track-bg);
  box-shadow: inset 0 0 4px var(--shadow-color);
  outline: none;
  opacity: 0.9;
  transition: opacity var(--transition-speed);
  flex-grow: 1;
}

.control-range:hover {
  opacity: 1;
}

.control-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  background: var(--input-switch-fg);
  border-radius: 50%;
  border: 1px solid var(--btn-border);
  box-shadow: var(--shadow);
  cursor: pointer;
  display: block;
  height: 1.4em;
  transition: transform var(--transition-speed), background var(--transition-speed);
  width: 1.4em;
}

.control-range::-webkit-slider-thumb:hover {
  transform: scale(1.1, 1.1);
  background: var(--input-switch-fg-hover);
}

.control-range::-moz-range-thumb {
  background: var(--input-switch-fg);
  border-radius: 50%;
  border: 1px solid var(--btn-border);
  box-shadow: var(--shadow);
  cursor: pointer;
  display: block;
  height: 1.4em;
  transition: transform var(--transition-speed), background var(--transition-speed);
  width: 1.4em;
}

.control-range::-moz-range-thumb:hover {
  transform: scale(1.1, 1.1);
  background: var(--input-switch-fg-hover);
}

.toggle-switch {
  --w: 3.2em;
  --h: calc(var(--w) / 2);
  flex-shrink: 0;
}

.toggle-switch.sm {
  --w: 2.5em;
}

.toggle-switch-control {
  width: var(--w);
  height: var(--h);
  position: relative;
  border-radius: var(--h);
  display: block;
  background: var(--input-switch-bg);
  box-shadow: inset 0 0 4px var(--shadow-color);
  transition: background var(--transition-speed) ease-in;
  cursor: pointer;
}

.toggle-switch-control:after {
  content: "";
  width: var(--h);
  height: var(--h);
  display: block;
  background: var(--input-switch-fg);
  box-shadow: var(--shadow);
  border: 1px solid var(--btn-border);
  border-radius: 100%;
  position: absolute;
  top: 0;
  left: 0;
  transition: left var(--transition-speed) ease-out, transform var(--transition-speed);
}

.toggle-switch-control:hover:after {
  transform: scale(1.05, 1.05);
}

.toggle-switch-input {
  appearance: none;
  visibility: hidden;
  width: 0px;
  height: 0px;
  padding: 0;
  margin: 0;
  position: absolute;
}

.toggle-switch-input:checked + .toggle-switch-control {
  background: var(--input-switch-bg-active);
}

.toggle-switch-input:checked + .toggle-switch-control:after {
  left: var(--h);
  transform: scale(1.1);
}

input,
button,
.btn,
.control {
  border-radius: 0.65rem;
  font-size: 0.92em;
  padding: 0.75em 1.3em;
  box-shadow: var(--shadow);
  transition: all var(--transition-speed);
  border: 1px solid transparent;
  box-sizing: border-box;
}

input:disabled,
button:disabled,
.btn:disabled,
.control:disabled {
  opacity: 0.7;
  pointer-events: none;
  touch-action: none;
  cursor: not-allowed;
}

.control {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  outline: 0;
  padding-left: 1em;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
  width: 100%;
}
.control:hover {
  border-color: var(--input-border-hover);
  box-shadow: 0 0 6px var(--input-border-hover);
}
.control:focus {
  border-color: var(--input-border-focus);
  box-shadow: 0 0 8px var(--btn-focus-outline);
}

.control-sm {
  font-size: smaller;
  padding: 0.25em 0.25em 0.25em 0.6em;
  box-shadow: 0px 2px 4px var(--shadow-color);
  width: auto;
  display: inline-block;
}

.btn {
  cursor: pointer;
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  color: var(--btn-color);
  outline: 0;
  transition: background var(--transition-speed), transform 0.2s, box-shadow 0.2s;
  font-weight: 600;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}
.btn:hover {
  background: var(--btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}
.btn:active {
  background: var(--btn-focus);
  transform: translateY(0);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.canvas {
  border: 2px solid var(--input-border);
  width: 100%;
  height: auto;
  background: var(--canvas-bg);
  image-rendering: pixelated;
  border-radius: 14px;
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
  box-sizing: border-box;
  max-width: 100%;
  max-height: 220px;
  aspect-ratio: 1 / 1;
}
.canvas.adjust-mode {
  touch-action: none;
  cursor: grab;
  box-shadow: 0 0 8px var(--input-border);
}

.canvas.adjust-mode:active {
  cursor: grabbing;
}

.heading {
  margin: 0.15rem 0;
  font-weight: 700;
  font-size: 2.2em;
  font-family: "Balsamiq Sans", "Comic Sans MS", cursive;
  color: var(--header-txt);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
  letter-spacing: 1px;
  transition: color var(--transition-speed);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
}

.content {
  padding: 1.25rem;
  background-color: var(--fg);
  text-align: center;
  border-radius: 16px;
  box-shadow: var(--shadow);
  transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.content-heading {
  font-weight: bold;
  margin: 0.5em 0 0.9em;
  text-align: center;
  color: var(--header-txt);
  font-family: "Balsamiq Sans", "Comic Sans MS", cursive;
  font-size: 1.5em;
  position: relative;
  display: inline-block;
  flex-shrink: 0;
}

.content-main {
  flex-grow: 1;
  overflow-y: auto;
  padding: 0 0.4em 0.4em;
}

.content-main::-webkit-scrollbar {
  width: 6px;
}

.content-main::-webkit-scrollbar-track {
  background: var(--preview-bg);
  border-radius: 3px;
}

.content-main::-webkit-scrollbar-thumb {
  background: var(--input-border);
  border-radius: 3px;
}

.content-main::-webkit-scrollbar-thumb:hover {
  background: var(--input-border-hover);
}

.content-heading::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: var(--btn-bg);
  border-radius: 3px;
}

.row {
  margin: 0.65em 0 0.95em;
  text-align: left;
}

.hint {
  margin: 0.5em 0;
  font-size: 0.82em;
  opacity: 0.9;
  color: var(--txt-light);
  font-style: italic;
  text-align: center;
}

.help {
  font-size: 0.88em;
  opacity: 0.9;
}

.drop-area {
  border-radius: 0.65rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  outline-offset: -4px;
  outline: 2px dashed var(--input-border);
  transition: outline-offset var(--transition-speed), background-color var(--transition-speed);
  padding: 1.5em 1.2em;
  text-align: center;
  background-color: var(--input-bg);
  width: 100%;
  box-sizing: border-box;
  flex-grow: 1;
  justify-content: center;
  min-height: 180px;
}

.drop-area-input {
  padding: 0.8em;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.drop-area-error, .drop-area-file-input {
  display: none;
}

.drop-area-upload {
  margin-top: 1.2em;
  font-size: 0.95rem;
  width: 100%;
  max-width: 300px;
  border-radius: 0.65rem;
  border: 1px solid var(--input-border);
  padding: 0.85em;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  margin-left: auto;
  margin-right: auto;
  gap: 0.65rem;
}

.drop-area-upload-btn {
  font-size: 0.95em;
  margin-right: 0.5em;
  flex-shrink: 0;
  padding: 0.6em 1.1em;
  cursor: pointer;
}

.drop-area-upload-filename {
  white-space: nowrap;
  text-overflow: ellipsis;
  display: inline-block;
  overflow: hidden;
  flex-grow: 1;
  text-align: left;
}

.drop-area.highlight {
  outline-color: var(--input-border-hover);
  outline-offset: -10px;
  background-color: rgba(243, 156, 18, 0.1);
}

.drop-area:hover .drop-area-message, .drop-area.highlight .drop-area-message {
  border-color: var(--input-border-hover);
}

.drop-area:hover .drop-area-message strong {
  color: var(--link);
}

.upload-preview {
  display: flex;
  flex-direction: column;
  height: 100%;
  flex-grow: 1;
}

.preview-image {
  object-fit: contain;
  width: 100%;
  max-width: 130px;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform var(--transition-speed);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}

.preview-image-container {
  margin: 0 auto;
  padding: 1.2em 0.8em;
  text-align: center;
  border-radius: 0.65rem;
  background: var(--preview-bg);
  transition: background-color var(--transition-speed);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-grow: 1;
  height: 100%;
  width: 100%;
}

.preview-image:hover {
  transform: scale(1.05);
}

.e {
  color: inherit !important;
  text-decoration: none !important;
  cursor: default;
}

.fingies {
  letter-spacing: -3px;
  display: block;
}

.fingies:hover .fl {
  animation: fingers 1200ms ease-in-out infinite;
}

@keyframes fingers {
  0% {
    margin-right: 0em;
  }
  50% {
    margin-right: 0.75em;
  }
  100% {
    margin-right: 0em;
  }
}

.separator {
  color: var(--txt-light);
  opacity: 0.8;
}

#color-theme {
  appearance: none;
  filter: none;
  visibility: hidden;
  padding: 0;
}

#color-theme:before {
  content: var(--icon);
  cursor: pointer;
  display: inline-block;
  font-size: 1.4rem;
  text-align: center;
  vertical-align: top;
  visibility: initial;
  width: 1.4rem;
  transition: transform var(--transition-speed);
}

#color-theme:hover:before {
  transform: rotate(15deg);
}

.separator {
  color: var(--txt-light);
  opacity: 0.5;
  margin: 0 0.312em;
}

.output-info {
  color: var(--txt-light);
  margin-top: 0.7em;
  font-size: 0.88em;
  padding: 0 0.4em;
}

img[src]+.output-info {
  margin-top: 0.75em;
}

@media only screen and (max-width: 40em) {
  .content-heading {
    padding: 0 0 0.5em;
    font-size: 1.3em;
  }

  .heading {
    margin: 0.4em 0;
    font-size: 1.7em;
  }

  .row {
    margin: 1em 0;
  }

  .control-group-s {
    min-width: 25%;
  }
  
  .content {
    padding: 1em;
    border-radius: 12px;
  }
  
  img {
    max-width: 100%;
  }
  
  .control-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .control-group-s,
  .control-group-l {
    min-width: unset;
    width: 100%;
    margin-bottom: 0.4em;
  }
  
  .toggle-switch {
    margin-left: auto;
    margin-right: auto;
  }
  
  .drop-area {
    min-height: 140px;
    padding: 0.85em 0.4em;
  }
  
  .drop-area-upload {
    margin-top: 0.85em;
    font-size: 0.85em;
    padding: 0.6em;
  }
  
  .preview-image-container {
    padding: 0.85em 0.4em;
  }
  
  .btn {
    padding: 0.6em 1em;
  }
  
  .preview-canvas {
    margin: 0 auto 0.75rem;
  }
  
  .preview-playback {
    margin-bottom: 0.75rem;
    gap: 0.35rem;
  }
  
  .preview-playback .btn {
    width: 38px;
    height: 38px;
  }
}

/* 中等屏幕适配 */
@media only screen and (min-width: 40em) and (max-width: 64em) {
  .content {
    padding: 1.1em;
  }
  
  .row {
    margin: 0.55em 0 0.8em;
  }
  
  .preview-controls {
    padding: 0 0.8em 0.8em;
  }
  
  .drop-area {
    padding: 1.2em 0.9em;
  }
  
  .heading {
    font-size: 2em;
  }
  
  .content-heading {
    font-size: 1.4em;
  }
  
  .preview-canvas {
    margin: 0 auto 0.85rem;
  }
}

/* 大屏幕适配 */
@media only screen and (min-width: 64em) {
  .content {
    padding: 1.5rem;
  }
  
  .heading {
    font-size: 2.4em;
  }
  
  .content-heading {
    font-size: 1.6em;
  }
  
  .drop-area {
    min-height: 200px;
  }
  
  .preview-image {
    max-width: 150px;
  }
  
  .preview-canvas {
    margin: 0 auto 1.1rem;
    max-width: 240px;
  }
  
  .preview-playback {
    margin-bottom: 1.1rem;
  }
  
  input,
  button,
  .btn,
  .control {
    padding: 0.8em 1.4em;
  }
}