:root {
  color: #20242c;
  background: #eef1f5;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}

button,
input,
select {
  font: inherit;
}

.app {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

.app-toolbar {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid #d8dde6;
  background: #fbfcfe;
}

.title-group {
  min-width: 0;
}

.title-group h1 {
  margin: 0;
  font-size: 20px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: 0;
}

.title-group p {
  margin: 4px 0 0;
  color: #697283;
  font-size: 13px;
  line-height: 1.35;
}

.file-action {
  position: relative;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid #2f6fed;
  border-radius: 6px;
  color: #ffffff;
  background: #2f6fed;
  cursor: pointer;
}

.file-action input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.workspace {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
}

.preview-pane {
  position: relative;
  min-width: 0;
  min-height: 0;
  background:
    linear-gradient(45deg, #dfe4ec 25%, transparent 25%),
    linear-gradient(-45deg, #dfe4ec 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #dfe4ec 75%),
    linear-gradient(-45deg, transparent 75%, #dfe4ec 75%);
  background-color: #f7f9fc;
  background-position:
    0 0,
    0 10px,
    10px -10px,
    -10px 0;
  background-size: 20px 20px;
  overflow: hidden;
}

.preview-pane[data-dragging="true"] {
  outline: 3px solid #2f6fed;
  outline-offset: -3px;
}

#previewCanvas {
  display: block;
  width: 100%;
  height: 100%;
}

.empty-state {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  min-width: 180px;
  padding: 12px 16px;
  border: 1px solid #d8dde6;
  border-radius: 8px;
  color: #596273;
  background: rgba(255, 255, 255, 0.92);
  text-align: center;
  font-size: 14px;
}

.empty-state[hidden] {
  display: none;
}

.inspector {
  min-width: 0;
  padding: 16px;
  border-left: 1px solid #d8dde6;
  background: #ffffff;
  overflow: auto;
}

.status-box {
  min-height: 42px;
  display: flex;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid #d8dde6;
  border-radius: 6px;
  color: #334155;
  background: #f8fafc;
  font-size: 14px;
  line-height: 1.35;
}

.status-box[data-tone="success"] {
  border-color: #91d2aa;
  color: #19643a;
  background: #eefaf2;
}

.status-box[data-tone="error"] {
  border-color: #f1a0a0;
  color: #9e2626;
  background: #fff3f3;
}

.field-label,
.log-title {
  display: block;
  margin: 16px 0 8px;
  color: #4b5563;
  font-size: 12px;
  font-weight: 700;
}

#skeletonSelect {
  width: 100%;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid #cbd3df;
  border-radius: 6px;
  background: #ffffff;
  color: #20242c;
}

.summary-list {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 8px 10px;
  margin: 16px 0 0;
  font-size: 13px;
}

.summary-list dt {
  color: #6b7280;
}

.summary-list dd {
  min-width: 0;
  margin: 0;
  color: #1f2937;
  overflow-wrap: anywhere;
}

.log-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.log-list li {
  padding: 8px 10px;
  border: 1px solid #e0e5ed;
  border-radius: 6px;
  background: #f8fafc;
  color: #4b5563;
  font-size: 12px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.log-list li[data-tone="error"] {
  border-color: #f1a0a0;
  color: #9e2626;
  background: #fff3f3;
}

.log-list li[data-tone="success"] {
  border-color: #91d2aa;
  color: #19643a;
  background: #eefaf2;
}

@media (max-width: 860px) {
  .app-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .file-action {
    width: 100%;
  }

  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(360px, 58vh) auto;
  }

  .inspector {
    border-left: 0;
    border-top: 1px solid #d8dde6;
  }
}