:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #202020;
  color: #e8e8e8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow: hidden;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
.file-button {
  border: 1px solid #555;
  border-radius: 6px;
  background: #3a3a3a;
  color: #f2f2f2;
  padding: 8px 10px;
  cursor: pointer;
}

button:hover,
.file-button:hover {
  background: #454545;
}

button.primary {
  background: #2374e1;
  border-color: #2374e1;
}

button.danger {
  background: #5a2d2d;
  border-color: #7d3a3a;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #565656;
  border-radius: 5px;
  background: #303030;
  color: #f3f3f3;
  padding: 7px 8px;
}

textarea {
  resize: vertical;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) 320px;
  grid-template-rows: 78px minmax(0, 1fr);
  height: 100vh;
}

.topbar {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 160px 230px;
  gap: 16px;
  align-items: center;
  border-bottom: 1px solid #111;
  background: #2d2d2d;
  padding: 10px 14px;
}

.brand {
  display: grid;
  gap: 2px;
}

.brand span {
  color: #aaa;
  font-size: 13px;
}

.brand a {
  color: #9fc5ff;
  text-decoration: none;
}

.toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  overflow-x: auto;
}

.toolbar button,
.file-button {
  min-width: 64px;
  text-align: center;
}

.file-button input {
  display: none;
}

.zoom-group,
.print-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
}

.zoom-group span {
  min-width: 56px;
  text-align: center;
  color: #cfcfcf;
}

.sidebar {
  overflow: auto;
  background: #282828;
  border-right: 1px solid #111;
  padding: 16px;
}

.right-panel {
  border-right: 0;
  border-left: 1px solid #111;
}

.sidebar section {
  display: grid;
  gap: 12px;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid #3a3a3a;
}

.sidebar h2 {
  margin: 0;
  font-size: 16px;
}

.sidebar p {
  margin: 0;
  color: #a8a8a8;
  line-height: 1.4;
}

.sidebar label {
  display: grid;
  gap: 6px;
  color: #d7d7d7;
  font-size: 14px;
  font-weight: 650;
}

.radio-row,
.check-row {
  display: grid;
  gap: 9px;
}

.radio-row label,
.check-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.radio-row input,
.check-row input {
  width: auto;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.input-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.input-action button {
  min-width: 92px;
  padding-inline: 9px;
}

.workspace {
  position: relative;
  overflow: hidden;
  background: #303030;
}

.stage-wrap {
  position: absolute;
  inset: 24px 0 34px 28px;
  overflow: auto;
  display: grid;
  align-items: start;
  justify-items: start;
  padding: 72px;
}

#labelCanvas {
  background: #fff;
  box-shadow: 0 0 0 1px #bdbdbd, 0 18px 50px rgba(0, 0, 0, 0.35);
  image-rendering: crisp-edges;
}

.ruler {
  position: absolute;
  color: #aaa;
  font-size: 11px;
  background: #262626;
  z-index: 2;
  pointer-events: none;
}

.ruler-x {
  top: 0;
  left: 28px;
  right: 0;
  height: 24px;
  border-bottom: 1px solid #171717;
}

.ruler-y {
  top: 24px;
  left: 0;
  bottom: 34px;
  width: 28px;
  border-right: 1px solid #171717;
}

.message-line {
  position: absolute;
  left: 46px;
  right: 18px;
  bottom: 8px;
  min-height: 20px;
  color: #d7d7d7;
  font-size: 14px;
}

.message-line.error {
  color: #ffb1b1;
}

.message-line.success {
  color: #a8e6b0;
}

.preview-box {
  min-height: 120px;
  display: grid;
  align-items: center;
  justify-items: start;
  border: 1px dashed #555;
  background: #222;
  padding: 12px;
  overflow: auto;
}

.preview-box img {
  max-width: none;
  image-rendering: crisp-edges;
}

code {
  overflow-wrap: anywhere;
  color: #b9d5ff;
}

@media (max-width: 980px) {
  body {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto minmax(420px, 1fr) auto;
    height: auto;
    min-height: 100vh;
  }

  .topbar {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border: 0;
  }

  .stage-wrap {
    min-height: 420px;
  }
}