/* ===== Tool section (QRPrint3D specific) ===== */
.tool-section { padding-block: 20px 56px; }
.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
}
@media (min-width: 920px) {
  .tool-grid { grid-template-columns: 1.05fr 0.95fr; padding: 32px; gap: 32px; }
}

.field-group { margin-bottom: 20px; }
.field-group label {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 8px;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

input[type="text"] {
  width: 100%;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 0.95rem;
  background: var(--bg);
  transition: border-color 0.2s;
}
input[type="text"]:focus { outline: none; border-color: var(--primary); }

input[type="color"] {
  width: 100%;
  height: 44px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 4px;
  background: var(--bg);
  cursor: pointer;
}

/* Pill select (dot styles) */
.pill-select { display: flex; flex-wrap: wrap; gap: 8px; }
.pill-opt {
  border: 1.5px solid var(--line-strong);
  background: var(--bg);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.pill-opt:hover { border-color: var(--primary); }
.pill-opt.is-active { background: var(--ink-900); border-color: var(--ink-900); color: #fff; }

/* Shape cards (3D) */
.shape-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.shape-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  border: 1.5px solid var(--line-strong);
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 14px 8px;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
}
.shape-card:hover { border-color: var(--primary); }
.shape-card.is-active { border-color: var(--primary); background: var(--primary-100); color: var(--primary-600); }
.shape-icon { font-size: 1.4rem; }

/* Logo / emoji */
.logo-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.file-input { display: none; }
.emoji-grid, .icon3d-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
}
.emoji-opt, .icon3d-opt {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--line-strong);
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 1.15rem;
  cursor: pointer;
  transition: all 0.15s;
}
.emoji-opt:hover, .icon3d-opt:hover { border-color: var(--primary); }
.emoji-opt.is-active, .icon3d-opt.is-active { border-color: var(--primary); background: var(--primary-100); }

.hint { margin-top: 10px; font-size: 0.8rem; color: var(--ink-400); }
.hint.is-warning { color: var(--ad-text); font-weight: 600; }
.download-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

/* Preview */
.tool-preview { display: flex; flex-direction: column; }
.preview-toggle {
  display: flex;
  gap: 16px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-400);
  margin-bottom: 14px;
}
.preview-toggle .is-active { color: var(--ink-900); }
.preview-stage {
  flex: 1;
  min-height: 320px;
  background: var(--bg-alt);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 20px;
}
#qr-render { display: flex; align-items: center; justify-content: center; }
#qr-render canvas, #qr-render svg { border-radius: 10px; box-shadow: var(--shadow-sm); max-width: 100%; height: auto; }
#canvas-3d { width: 100%; height: 100%; min-height: 320px; cursor: grab; }
#canvas-3d:active { cursor: grabbing; }
.preview-3d-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(28, 27, 31, 0.8);
  color: #fff;
  font-size: 0.75rem;
  padding: 5px 12px;
  border-radius: 999px;
  pointer-events: none;
}