:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --ink: #1c2330;
  --muted: #67707f;
  --accent: #2563eb;
  --accent-ink: #ffffff;
  --border: #d8dce3;
  --ok: #16a34a;
  --err: #dc2626;
  font-size: 15px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 { font-size: 1.15rem; margin: 0; }

.printer-bar { display: flex; align-items: center; gap: 0.6rem; }

.status { color: var(--muted); font-size: 0.9rem; }
.status.ok { color: var(--ok); font-weight: 600; }
.status.err { color: var(--err); }

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
}

.panel h2 { margin: 0 0 0.7rem; font-size: 1rem; }

.row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 0.6rem;
}

label { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.9rem; }
label.check { user-select: none; }

input[type="number"] { width: 5.2rem; }
input[type="text"], input[type="number"], select, textarea {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

.tpl-row { align-items: stretch; }
.tpl-row label { flex: 1 1 240px; }
.tpl-row input { flex: 1; }

textarea { width: 100%; resize: vertical; }

button {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.primary:hover:not(:disabled) { filter: brightness(1.1); }
button:disabled { opacity: 0.45; cursor: not-allowed; }

.hint { color: var(--muted); font-size: 0.83rem; }
.hint code { background: var(--bg); padding: 0 0.25rem; border-radius: 4px; }

.gallery { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.4rem; }

.gallery .tpl {
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  cursor: pointer;
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  background: #fff;
  position: relative;
  width: 130px;
}
.gallery .tpl img, .gallery .tpl .none-box {
  width: 100%;
  height: 44px;
  object-fit: contain;
  display: flex;
  align-items: center;
  justify-content: center;
  background: repeating-conic-gradient(#eee 0% 25%, #fff 0% 50%) 0 0 / 12px 12px;
}
.gallery .tpl.selected { border-color: var(--accent); }
.gallery .tpl .del {
  position: absolute;
  top: -7px; right: -7px;
  width: 18px; height: 18px;
  line-height: 15px;
  border-radius: 50%;
  background: var(--err);
  color: #fff;
  border: none;
  padding: 0;
  font-size: 11px;
  display: none;
}
.gallery .tpl:hover .del { display: block; }

#colChips .chip {
  display: inline-block;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0 0.35rem;
  margin: 0 0.15rem;
  cursor: pointer;
}

#dataTableWrap { max-height: 260px; overflow: auto; border: 1px solid var(--border); border-radius: 8px; }
#dataTable { border-collapse: collapse; width: 100%; font-size: 0.85rem; }
#dataTable th, #dataTable td { border-bottom: 1px solid var(--border); padding: 0.25rem 0.5rem; text-align: left; white-space: nowrap; }
#dataTable th { position: sticky; top: 0; background: var(--bg); }
#dataTable tr.active td { background: #eaf1fe; }
#dataTable tr { cursor: pointer; }

.preview-wrap {
  overflow: auto;
  max-height: 480px;
  background: repeating-conic-gradient(#eceef1 0% 25%, #f9fafb 0% 50%) 0 0 / 16px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 0.6rem;
}
.preview-wrap canvas {
  display: block;
  margin: 0 auto;
  image-rendering: pixelated;
  box-shadow: 0 1px 4px rgb(0 0 0 / 25%);
  background: #fff;
}
.preview-item { margin-bottom: 14px; }
.preview-item .cap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 860px;
  margin: 0 auto 3px;
  font-size: 0.8rem;
  color: var(--muted);
}
.preview-item .cap button { padding: 0.1rem 0.6rem; font-size: 0.78rem; }

progress { width: 100%; height: 14px; margin-bottom: 0.5rem; }

#log {
  font-family: Consolas, monospace;
  font-size: 0.78rem;
  max-height: 150px;
  overflow-y: auto;
  background: #0f172a;
  color: #cbd5e1;
  border-radius: 8px;
  padding: 0.5rem 0.7rem;
  white-space: pre-wrap;
}
#log:empty { display: none; }
#log .err { color: #f87171; }
#log .ok { color: #4ade80; }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 1rem;
}