:root {
  --purple: #6d38e8;
  --purple-dark: #4920ae;
  --ink: #172033;
  --muted: #657085;
  --line: #ddd9e8;
  --panel: #fff;
  --soft: #f7f5fc;
  --green: #087a45;
  --danger: #b42318;
}
* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
body {
  margin: 0;
  background: #fbfaff;
  color: var(--ink);
  font:
    15px/1.45 system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
}
.skip {
  position: fixed;
  top: -5rem;
  left: 1rem;
  z-index: 100;
  background: #fff;
  padding: 0.7rem;
}
.skip:focus {
  top: 1rem;
}
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: inherit;
  text-decoration: none;
}
.brand img {
  width: 44px;
  height: 44px;
}
.brand span {
  display: grid;
}
.brand small,
.eyebrow {
  color: var(--purple);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.brand strong {
  font-size: 1.15rem;
}
.app-header nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.app-header button,
.app-header nav a {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  padding: 0.55rem 0.75rem;
  color: inherit;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
}
.local {
  color: var(--green);
  font-weight: 800;
}
.hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  width: min(1380px, calc(100% - 2rem));
  margin: 2.2rem auto 1.2rem;
}
.hero h1 {
  margin: 0.2rem 0;
  font-size: clamp(2rem, 5vw, 4.3rem);
  line-height: 1;
}
.hero p {
  max-width: 720px;
  color: var(--muted);
}
.mode-label {
  display: grid;
  min-width: min(390px, 100%);
  gap: 0.35rem;
  font-weight: 900;
}
.mode-actions {
  display: grid;
  gap: 0.55rem;
  min-width: min(390px, 100%);
}
.examples-button {
  width: 100%;
  border-color: #b7a3f5;
  background: #f1ecff;
  color: #5420cf;
}
.lesson-link {
  display: inline-block;
  margin-top: 0.3rem;
  color: #5420cf;
  font-weight: 750;
}
.studio {
  display: grid;
  grid-template-columns: minmax(320px, 460px) minmax(420px, 1fr);
  gap: 1.2rem;
  width: min(1380px, calc(100% - 2rem));
  margin: auto;
}
.controls,
.preview {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 12px 34px #28154f0d;
}
.controls {
  display: grid;
  align-content: start;
  gap: 1rem;
  padding: 1.1rem;
}
.controls label {
  display: grid;
  gap: 0.3rem;
  color: #354052;
  font-weight: 750;
}
.controls label span,
.hint {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 500;
}
.controls input,
.controls select,
.controls textarea,
.mode-label select {
  width: 100%;
  min-height: 42px;
  border: 1px solid #cdd2df;
  border-radius: 9px;
  background: #fff;
  padding: 0.5rem 0.65rem;
  color: var(--ink);
  font: inherit;
}
.controls textarea {
  min-height: 110px;
  resize: vertical;
}
.controls input[type="color"] {
  padding: 0.18rem;
}
.controls input[type="checkbox"] {
  width: 18px;
  min-height: 18px;
}
.controls input[type="range"] {
  min-height: auto;
  padding: 0;
}
.controls button,
.export-row button {
  min-height: 42px;
  border: 1px solid #cdd2df;
  border-radius: 9px;
  background: #fff;
  padding: 0.55rem 0.75rem;
  color: var(--ink);
  font: inherit;
  font-weight: 800;
}
.controls button:hover,
.export-row button:hover {
  border-color: var(--purple);
  color: var(--purple);
}
.primary {
  border-color: var(--purple) !important;
  background: var(--purple) !important;
  color: #fff !important;
}
.simple-row,
.section-head,
.preview-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 0.7rem;
}
.simple-row label {
  flex: 1;
}
.mode-controls {
  display: grid;
  gap: 0.8rem;
  border-left: 4px solid var(--purple);
  border-radius: 8px;
  background: #faf9fe;
  padding: 0.9rem;
}
.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}
.four {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.45rem;
}
.checks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.checks label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.controls fieldset {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem;
}
.controls legend {
  padding: 0 0.35rem;
  font-weight: 900;
}
.button-row,
.export-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.picture-row {
  display: grid;
  grid-template-columns: 44px minmax(80px, 1fr) 80px auto;
  gap: 0.4rem;
  align-items: center;
  margin: 0.4rem 0;
}
.picture-row input {
  min-width: 0;
}
.picture-row .emoji {
  font-size: 1.2rem;
  text-align: center;
}
.picture-row img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}
.picture-row button {
  min-height: 38px;
  padding: 0.3rem 0.5rem;
}
.picture-image {
  grid-column: 1/-1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.picture-image input {
  display: none;
}
.emoji-palette {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 0.3rem;
  padding: 0.6rem;
}
.emoji-palette button {
  padding: 0.25rem;
  font-size: 1.25rem;
}
.slider-grid {
  display: grid;
  gap: 0.5rem;
}
.slider-grid label {
  grid-template-columns: 18px 1fr 44px;
  align-items: center;
}
.quality {
  border-radius: 8px;
  background: #f4f7fb;
  padding: 0.7rem;
  color: var(--muted);
}
.quality.warning {
  background: #fff7e8;
  color: #834b00;
}
.preview {
  position: sticky;
  top: 0.8rem;
  display: grid;
  align-content: start;
  gap: 1rem;
  min-height: 720px;
  padding: 1rem;
}
.preview-head {
  align-items: center;
}
.preview-head span {
  color: var(--green);
  font-weight: 800;
}
#canvas {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 570px;
  overflow: hidden;
  border-radius: 13px;
  background: #eee9ff;
  touch-action: none;
}
#canvas svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 680px;
}
#canvas [data-drag-row] {
  cursor: ns-resize;
  touch-action: none;
}
#canvas [data-drag-axis="x"] {
  cursor: ew-resize;
}
#canvas .drag-indicator {
  pointer-events: none;
  opacity: 0;
  filter: drop-shadow(0 1px 2px rgb(0 0 0 / 0.65));
  transition: opacity 120ms ease;
}
#canvas .draggable-mark:hover .drag-indicator,
#canvas .draggable-mark:focus-within .drag-indicator {
  opacity: 1;
}
#canvas [data-quick-row] {
  cursor: context-menu;
}
#canvas [data-expression-index] {
  cursor: ns-resize;
  touch-action: none;
}
.quick-edit-dialog {
  width: min(360px, calc(100% - 2rem));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0;
  box-shadow: 0 24px 70px rgb(24 32 51 / 0.24);
}
.quick-edit-dialog::backdrop {
  background: rgb(24 32 51 / 0.42);
}
.quick-edit-dialog form {
  display: grid;
  gap: 1rem;
  padding: 1rem;
}
.dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.dialog-head button {
  min-width: 44px;
  padding: 0.35rem;
  font-size: 1.25rem;
}
.example-dialog {
  width: min(960px, calc(100% - 2rem));
  max-height: calc(100% - 2rem);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
}
.example-dialog::backdrop {
  background: rgb(24 32 51 / 0.46);
}
.example-dialog .dialog-head p {
  margin: 0.2rem 0 0;
  color: var(--muted);
}
.example-group h3 {
  margin-bottom: 0.55rem;
}
.example-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}
.example-card {
  min-height: 92px;
  text-align: left;
  background: #faf9fe;
}
.example-thumbnail {
  display: block;
  margin: -0.75rem -0.75rem 0.15rem;
  overflow: hidden;
  border-radius: 10px 10px 4px 4px;
  background: #f7f3ff;
}
.example-thumbnail svg {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7.5;
}
.example-card strong,
.example-card span {
  display: block;
}
.example-card span {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.82rem;
}
@media (max-width: 720px) {
  .example-grid {
    grid-template-columns: 1fr 1fr;
  }
}
#trace {
  min-height: 22px;
  text-align: center;
  color: var(--muted);
}
.export-row {
  justify-content: center;
}
#valueTable {
  max-height: 240px;
  overflow: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th,
td {
  border: 1px solid var(--line);
  padding: 0.35rem;
  text-align: right;
}
th:first-child,
td:first-child {
  text-align: left;
}
.help {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  width: min(1380px, calc(100% - 2rem));
  margin: 2.5rem auto;
}
.help article {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 1rem;
}
.help h2 {
  margin-top: 0;
}
.help p {
  color: var(--muted);
}
footer {
  margin-top: 2rem;
  padding: 1.3rem;
  text-align: center;
  background: #21173c;
  color: #e8e1f5;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
#canvas:focus-visible {
  outline: 3px solid #f5b942;
  outline-offset: 2px;
}
@media (max-width: 940px) {
  .hero {
    align-items: stretch;
    flex-direction: column;
  }
  .studio {
    grid-template-columns: 1fr;
  }
  .preview {
    position: static;
    min-height: 0;
  }
  .help {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 560px) {
  .local {
    display: none;
  }
  .brand small {
    display: none;
  }
  .hero {
    margin-top: 1.4rem;
  }
  .four,
  .two {
    grid-template-columns: 1fr 1fr;
  }
  .picture-row {
    grid-template-columns: 42px 1fr 72px auto;
  }
  .preview {
    padding: 0.6rem;
  }
  #canvas {
    min-height: 400px;
  }
  .export-row button {
    flex: 1 1 28%;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
}
@media print {
  .app-header,
  .hero,
  .controls,
  .preview-head,
  .export-row,
  #trace,
  .help,
  footer {
    display: none !important;
  }
  .studio,
  .preview {
    display: block;
    width: 100%;
    border: 0;
    box-shadow: none;
  }
  .preview {
    min-height: 0;
  }
  #canvas {
    background: #fff;
    min-height: 0;
  }
}