/* PT-P300BT Label Designer — modern, functional UI */
:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e9ef;
  --muted: #9aa3b2;
  --accent: #4f8cff;
  --accent-2: #2f6fe0;
  --ok: #35c46b;
  --warn: #f0b429;
  --err: #ef5350;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}

code { font-family: "Cascadia Code", Consolas, monospace; color: var(--muted); }

/* ---------- Header ---------- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  background: linear-gradient(180deg, #1b1f28, #14171d);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 28px; }
.app-header h1 { margin: 0; font-size: 18px; font-weight: 650; }
.subtitle { margin: 2px 0 0; font-size: 12px; color: var(--muted); }

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid transparent;
}
.badge-ok { background: rgba(53, 196, 107, .15); color: var(--ok); border-color: rgba(53, 196, 107, .4); }
.badge-warn { background: rgba(240, 180, 41, .15); color: var(--warn); border-color: rgba(240, 180, 41, .4); }
.badge-err { background: rgba(239, 83, 80, .15); color: var(--err); border-color: rgba(239, 83, 80, .4); }

.banner {
  margin: 0;
  padding: 12px 20px;
  background: rgba(240, 180, 41, .12);
  border-bottom: 1px solid rgba(240, 180, 41, .35);
  color: #ffd97a;
  font-size: 13px;
}
.banner.hidden { display: none; }

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: minmax(340px, 420px) 1fr;
  gap: 14px;
  padding: 14px;
  height: calc(100vh - 62px);
  /* On very short windows the fixed height would squeeze the preview panel
     until the Output log was clipped by the panel border; a floor makes the
     page scroll instead. */
  min-height: 620px;
}
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; height: auto; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.controls { overflow-y: auto; padding: 6px; }

/* ---------- Groups ---------- */
.group { border: 1px solid var(--border); border-radius: 8px; margin: 6px; background: var(--panel-2); }
.group > summary {
  cursor: pointer;
  padding: 10px 12px;
  font-weight: 600;
  font-size: 13px;
  list-style: none;
  user-select: none;
}
.group > summary::-webkit-details-marker { display: none; }
.group > summary::before { content: "▸ "; color: var(--muted); }
.group[open] > summary::before { content: "▾ "; }
.group-body { padding: 4px 12px 12px; display: flex; flex-direction: column; gap: 8px; }
.subgroup { border: 1px dashed var(--border); border-radius: 6px; padding: 6px 10px; }
.subgroup > summary { cursor: pointer; font-size: 12px; color: var(--muted); }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

/* ---------- Fields ---------- */
.field { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.field.inline { flex-direction: row; align-items: center; justify-content: space-between; gap: 8px; }
.field.inline input { width: 110px; }
.field small { color: #6f7889; }

input[type="text"], input[type="number"], textarea, select {
  background: #0e1116;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 7px 9px;
  font: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, .18);
}
textarea { resize: vertical; min-height: 64px; font-family: inherit; }
select { cursor: pointer; }

.check { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); cursor: pointer; }
.check input { width: 16px; height: 16px; accent-color: var(--accent); }

.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.hint { font-size: 12px; color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid var(--border);
  background: #232833;
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .05s;
}
.btn:hover { background: #2b3140; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent-2); border-color: var(--accent-2); }
.btn-primary:hover { background: var(--accent); }
.btn-accent { background: var(--ok); border-color: var(--ok); color: #06210f; font-weight: 700; }
.btn-accent:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; }
.btn-icon { width: 34px; padding: 6px 0; text-align: center; font-size: 16px; }

/* ---------- Merge list ---------- */
.merge-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.merge-list li {
  padding: 6px 8px;
  background: #0e1116;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.merge-list li.selected { border-color: var(--accent); background: rgba(79, 140, 255, .12); }

/* ---------- Preview ---------- */
.preview { display: flex; flex-direction: column; min-height: 0; }
.preview-toolbar, .preview-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.preview-actions { border-bottom: none; border-top: 1px solid var(--border); }
.spacer { flex: 1; }

/* ---------- Output log actions ---------- */
.log-actions { display: flex; gap: 6px; padding: 6px 10px 0; }
.log-actions .btn { padding: 4px 10px; font-size: 12px; }

.status-pill {
  font-size: 12px;
  color: var(--muted);
  background: #0e1116;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  max-width: 60%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.canvas-wrap {
  position: relative;
  flex: 1;
  /* Shrinkable so a short window compresses the CANVAS, never the Output
     log below it (a fixed min-height here forced the log group smaller
     than its content, spilling the <pre> past the group border). */
  min-height: 0;
  overflow: auto;
  background:
    repeating-conic-gradient(#1a1e26 0% 25%, #14171d 0% 50%) 50% / 24px 24px;
  display: flex;
  align-items: flex-start;
  /* Safe centering: when the canvas is wider than the wrap, the overflow
     stays scrollable to BOTH edges instead of clipping the left side
     (justify-content: center makes the left part unreachable). */
  justify-content: safe center;
  padding: 16px;
}
#preview-canvas {
  image-rendering: pixelated;
  box-shadow: 0 4px 18px rgba(0,0,0,.5);
  background: #fff;
  cursor: grab;
}
#preview-canvas.dragging { cursor: grabbing; }
.preview-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4a5262;
  font-size: 15px;
  pointer-events: none;
}
.preview-empty.hidden { display: none; }

/* ---------- Log ---------- */
.log-group {
  margin: 6px 12px 12px;
  /* Fixed-size footer of the preview panel: its content (summary + Copy/
     Clear + 160px-max log) always fits, so it must never be compressed by
     the flex layout (compression made the <pre> spill past the border). */
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
}
.log-group > summary { flex: 0 0 auto; }
.log {
  margin: 0;
  padding: 10px;
  max-height: 160px;
  overflow: auto;
  background: #0b0d11;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 12px;
  color: #b9c2d0;
  white-space: pre-wrap;
}