:root {
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
  color: #172333;
  background: #edf1f5;
  font-size: 14px;
  --blue: #1265bb;
  --line: #c3ccd6;
  --orange: #ff8800;
  --muted: #586779;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
select,
input,
textarea {
  border: 1px solid #a6b3c2;
  border-radius: 3px;
  background: #fff;
  color: inherit;
}
button {
  padding: 9px 12px;
  cursor: pointer;
  font-weight: 550;
  white-space: nowrap;
  box-shadow: 0 1px 1px #14253d0b;
}
button:hover {
  background: #edf5ff;
  border-color: var(--blue);
}
button:active {
  transform: translateY(1px);
}
button:disabled {
  opacity: 0.42;
  cursor: default;
}
button[aria-pressed="true"] {
  background: #e0eeff;
  border-color: var(--blue);
  color: #064f99;
  box-shadow: inset 0 -2px var(--blue);
}
:focus-visible {
  outline: 3px solid #e27a00;
  outline-offset: 3px;
}
input,
select,
textarea {
  padding: 9px;
  min-width: 0;
}
input[type="checkbox"] {
  accent-color: var(--blue);
  width: 16px;
  height: 16px;
  margin: 0;
  flex: none;
}
input:disabled {
  background: #eef1f4;
  color: #68788b;
}
a {
  color: #185d9e;
  text-underline-offset: 3px;
}
h1,
h2,
p {
  margin: 0;
}
h2 {
  font-size: 11px;
  letter-spacing: 1.4px;
  font-weight: 750;
}
label {
  font-size: 12px;
  font-weight: 600;
}
hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 20px 0;
}
.app-header {
  min-height: 98px;
  background: #0f5397;
  color: #fff;
  border-bottom: 4px solid var(--orange);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px max(28px, calc((100vw - 1540px) / 2));
  gap: 20px;
}
.brand {
  display: flex;
  gap: 15px;
  align-items: center;
}
.brand-icon {
  border: 2px solid white;
  font-size: 32px;
  line-height: 38px;
  width: 44px;
  height: 44px;
  text-align: center;
  box-shadow: 4px 4px 0 #073a6c;
  color: var(--orange);
}
h1 {
  font-size: 23px;
  letter-spacing: -0.6px;
  font-weight: 750;
}
h1 span {
  font-weight: 400;
}
.brand p {
  font-size: 12px;
  color: #d0e5fc;
  margin-top: 5px;
}
.version {
  font:
    11px ui-monospace,
    monospace;
  letter-spacing: 1px;
  color: #d0e5fc;
  border: 1px solid #ffffff45;
  padding: 7px 9px;
}
main {
  max-width: 1596px;
  margin: auto;
  padding: 24px 28px;
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}
.topbar > div:first-child {
  display: flex;
  align-items: center;
  gap: 13px;
}
.preset {
  border-color: #9ab6d5;
  border-left: 4px solid var(--orange);
  padding: 12px 16px;
  background: #fff;
  font-weight: 700;
}
.preset-caption {
  font:
    11px ui-monospace,
    monospace;
  color: var(--muted);
}
.primary {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
  padding: 12px 18px;
}
.primary:hover {
  background: #07539e;
  color: #fff;
}
.button-row {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}
.status {
  border: 1px solid #c7d8e9;
  background: #e7f0f9;
  padding: 11px 14px;
  margin-bottom: 20px;
  font-size: 12px;
  min-height: 41px;
}
.status.error {
  border-color: #d7958f;
  color: #8b241b;
  background: #fff0ee;
}
.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 282px;
  gap: 22px;
  align-items: start;
}
.edit-area {
  min-width: 0;
}
.toolbar {
  display: flex;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
  background: #fff;
  border: 1px solid var(--line);
  padding: 10px;
  margin-bottom: 14px;
}
.toolbar button {
  font-size: 12px;
  padding: 8px 10px;
}
.view-controls {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}
.view-controls label {
  display: flex;
  align-items: center;
  gap: 7px;
}
.view-controls select {
  padding: 5px;
}
.check {
  display: flex !important;
  align-items: center;
  gap: 8px;
  line-height: 1.5;
}
.editors {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.editor-panel {
  border: 1px solid #aab8c7;
  background: #f8fafc;
  min-width: 0;
  box-shadow: 0 3px 7px #1a36530a;
}
.editor-panel.active {
  border-color: var(--blue);
}
.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.panel-title h2 {
  color: #748397;
  font:
    11px ui-monospace,
    monospace;
  letter-spacing: 1px;
}
.panel-title strong {
  color: #293a4d;
  margin-left: 10px;
}
.image-size {
  font:
    10px ui-monospace,
    monospace;
  color: #64758a;
}
.canvas-scroll {
  overflow: auto;
  display: flex;
  align-items: safe center;
  justify-content: safe center;
  min-height: 315px;
  height: 340px;
  padding: 18px;
  background-color: #dfe6ee;
  background-image:
    linear-gradient(45deg, #d6dee8 25%, transparent 25%),
    linear-gradient(-45deg, #d6dee8 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #d6dee8 75%),
    linear-gradient(-45deg, transparent 75%, #d6dee8 75%);
  background-size: 16px 16px;
  background-position:
    0 0,
    0 8px,
    8px -8px,
    -8px 0;
}
.canvas-scroll canvas {
  flex: none;
  display: block;
  image-rendering: pixelated;
  touch-action: none;
  cursor: crosshair;
  box-shadow:
    0 0 0 1px #657b93,
    0 5px 16px #1323391f;
}
.editor-footer {
  padding: 9px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  border-top: 1px solid var(--line);
  color: #6a7889;
  font-size: 11px;
}
.editor-footer canvas {
  image-rendering: pixelated;
  max-width: 100px;
  max-height: 48px;
  object-fit: contain;
}
.panel-actions {
  border-top: 1px solid var(--line);
  padding: 10px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.panel-actions button {
  font-size: 11px;
  padding: 7px 10px;
}
.panel-actions button:last-child {
  margin-left: auto;
}
.palette-section {
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  margin-top: 16px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.text-button {
  background: none;
  border: 0;
  box-shadow: none;
  padding: 0;
  color: var(--blue);
  font-size: 11px;
}
.palette {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.pen {
  display: flex;
  align-items: center;
  gap: 5px;
}
.pen button {
  padding: 4px 8px 4px 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  font:
    11px ui-monospace,
    monospace;
}
.swatch {
  width: 30px;
  height: 30px;
  border: 1px solid #0003;
  display: block;
}
.pen input[type="color"] {
  padding: 0;
  width: 21px;
  height: 25px;
  cursor: pointer;
  border: 0;
}
.palette-section p {
  font-size: 11px;
  color: var(--muted);
  margin-top: 13px;
  line-height: 1.6;
}
.operations {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 16px 0;
}
.operations button,
.operations select {
  font-size: 12px;
}
.generate-row {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}
.generate-row label {
  color: var(--muted);
  font-size: 11px;
}
.settings {
  background: #fff;
  border: 1px solid var(--line);
  padding: 20px;
}
.settings > label,
.settings details label {
  display: block;
  margin: 14px 0 6px;
}
.settings > input,
.settings > select,
.settings textarea,
.settings details input {
  width: 100%;
}
.settings .check {
  margin-top: 17px;
  font-size: 11px;
}
.name-input {
  display: flex;
  align-items: center;
  border: 1px solid #a6b3c2;
  border-radius: 3px;
}
.name-input input {
  width: 100%;
  border: 0;
}
.name-input span {
  color: #788699;
  font:
    12px ui-monospace,
    monospace;
  padding: 0 10px;
}
.dimensions {
  display: flex;
  gap: 9px;
  align-items: flex-end;
  margin: 15px 0;
}
.dimensions input {
  width: 100%;
  display: block;
  margin-top: 6px;
}
.dimensions > span {
  padding-bottom: 10px;
  color: #8b98a8;
}
.full-width {
  width: 100%;
  margin-top: 10px;
  font-size: 11px;
}
.hint {
  font-size: 10px;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 8px;
}
.muted {
  color: var(--muted);
  font-weight: 400;
  float: right;
}
.coordinates {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}
.coordinates label {
  min-width: 0;
  font-size: 10px;
}
.coordinates input {
  width: 100%;
  margin-top: 5px;
  padding: 7px;
  font-size: 11px;
}
.tiny-square {
  width: 9px;
  height: 9px;
  background: var(--orange);
}
details {
  border-top: 1px solid var(--line);
  padding-top: 13px;
  margin-top: 17px;
}
summary {
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
details p {
  font-size: 12px;
  line-height: 1.5;
  margin: 12px 0;
}
.extras {
  background: #fff;
  border: 1px solid var(--line);
  padding: 14px;
  margin-top: 0;
}
.extras .button-row {
  margin-top: 12px;
}
.extras button {
  font-size: 11px;
}
pre {
  font:
    10px/1.8 ui-monospace,
    monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.format-note {
  border-left: 3px solid var(--orange);
  padding-left: 10px;
  margin-top: 20px;
  font-size: 11px;
}
.format-note p {
  font-size: 10px;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 5px;
}
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  margin-top: 28px;
  padding: 18px 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}
footer nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.local-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: #2a8b64;
  border-radius: 50%;
  margin-right: 7px;
}
.drag-over {
  outline: 3px dashed var(--orange);
  outline-offset: -4px;
}
#selected-panel.excluded .panel-title {
  background: #edf0f4;
}
#selected-panel.excluded .panel-title strong::after {
  content: attr(data-excluded-label);
  font-size: 9px;
  font-weight: 400;
}
@media (min-width: 1450px) {
  .canvas-scroll {
    height: 390px;
  }
}
@media (max-width: 1200px) {
  .preset-caption {
    display: none;
  }
  .workspace {
    grid-template-columns: minmax(0, 1fr) 250px;
  }
  .editors {
    grid-template-columns: 1fr;
  }
  .canvas-scroll {
    height: 320px;
  }
  .settings {
    padding: 16px;
  }
  .view-controls {
    margin-left: 0;
  }
}
@media (max-width: 760px) {
  .workspace {
    grid-template-columns: 1fr;
  }
  .app-header {
    padding: 18px;
  }
  .version {
    display: none;
  }
  h1 {
    font-size: 19px;
  }
  h1 span {
    display: block;
  }
  main {
    padding: 18px 14px;
  }
  .topbar {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }
  .topbar .button-row {
    justify-content: space-between;
  }
  .preset {
    width: 100%;
  }
  .settings {
    max-width: none;
  }
  .canvas-scroll {
    height: 310px;
  }
  footer {
    align-items: flex-start;
    flex-direction: column;
  }
  .toolbar {
    gap: 10px;
  }
  .operations {
    gap: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto;
  }
}

#info-dialog {
  width: min(480px, calc(100vw - 32px));
  padding: 0;
  color: #172333;
  background: #fff;
  border: 1px solid var(--blue);
  box-shadow: 0 12px 40px #14253d40;
}
#info-dialog::backdrop {
  background: #14253d66;
}
#info-title {
  padding: 13px 18px;
  color: #fff;
  background: var(--blue);
  border-bottom: 3px solid var(--orange);
}
#info-text {
  padding: 24px 20px;
  line-height: 1.6;
}
.dialog-actions {
  display: flex;
  justify-content: flex-end;
  padding: 0 20px 18px;
}
.dialog-actions button {
  min-width: 80px;
}