* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Inter,
    Arial,
    sans-serif;
  color: #0f172a;
  background: #f6f7f9;
}
.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.title h1 {
  margin: 0;
  font-size: 20px;
}
.subtitle {
  font-size: 12px;
  color: #64748b;
}
.actions {
  display: flex;
  gap: 8px;
}
.btn {
  padding: 8px 12px;
  border: 1px solid #cbd5e1;
  background: #fff;
  border-radius: 12px;
  cursor: pointer;
}
.btn.primary {
  background: #111827;
  color: #fff;
  border-color: #111827;
}
.main {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 16px;
}
.canvas-wrap {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.panel {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.field {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
}
.field label {
  font-size: 14px;
  color: #475569;
}
.field .value {
  font-size: 12px;
  color: #64748b;
}
.box {
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  border-radius: 12px;
  padding: 10px;
  font-size: 13px;
  color: #475569;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #64748b;
  font-size: 12px;
}
canvas {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 768px) {
  .main {
    grid-template-columns: 1fr;
  }

  .top,
  .foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}