/* ── Param rows ─────────────────────────────────────────────────────────────── */

.param-row {
  padding: 0.5rem 0;
}

.param-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.param-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: #1a1a1a;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
  line-height: 1.3;
}

.param-unit {
  font-size: 0.7rem;
  color: #5a6573;
  font-weight: 400;
}

.param-tag {
  font-size: 0.6rem;
  font-weight: 600;
  padding: 0.1rem 0.35rem;
  border-radius: 9999px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.tag-c1 { background: #dbeafe; color: #1d4ed8; }
.tag-cn { background: #d1fae5; color: #065f46; }

.param-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* Number input — compact, right-aligned value display */
.param-number {
  width: 4.5rem;
  padding: 0.25rem 0.4rem;
  border: 1.5px solid #e2e8f0;
  border-radius: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #1e3a5f;
  text-align: right;
  background: #f7f9fc;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  -moz-appearance: textfield;
}
.param-number::-webkit-outer-spin-button,
.param-number::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.param-number:focus {
  border-color: #7fba3c;
  background: #fff;
  box-shadow: 0 0 0 2px rgba(127,186,60,0.18);
}
.param-number.has-error { border-color: #dc2626; }

/* Info toggle button */
.info-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.375rem;
  height: 1.375rem;
  border-radius: 50%;
  border: none;
  background: #e2e8f0;
  color: #5a6573;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  flex-shrink: 0;
}
.info-toggle:hover,
.info-toggle.active {
  background: #1e3a5f;
  color: #fff;
}

/* Range slider */
.param-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: #e2e8f0;
  outline: none;
  cursor: pointer;
}
.param-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #1e3a5f;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.param-range::-webkit-slider-thumb:hover,
.param-range:active::-webkit-slider-thumb {
  background: #7fba3c;
  transform: scale(1.15);
}
.param-range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #1e3a5f;
  cursor: pointer;
  border: none;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
  transition: background 0.15s;
}
.param-range::-moz-range-thumb:hover { background: #7fba3c; }

/* Range min/max labels */
.range-bounds {
  display: flex;
  justify-content: space-between;
  font-size: 0.65rem;
  color: #9aa3ad;
  margin-top: 0.2rem;
}

/* Info panel */
.param-info {
  margin-top: 0.5rem;
  padding: 0.6rem 0.75rem;
  background: #f0f4fa;
  border-left: 3px solid #1e3a5f;
  border-radius: 0 0.375rem 0.375rem 0;
  font-size: 0.75rem;
  color: #374151;
  line-height: 1.55;
}

/* Error message */
.param-error {
  font-size: 0.7rem;
  color: #dc2626;
  min-height: 0.875rem;
  line-height: 1.3;
  margin-top: 0.2rem;
}
.param-error:empty { visibility: hidden; }

/* Divider between params */
.param-divider {
  height: 1px;
  background: #f0f2f5;
  margin: 0 -1rem;
}

/* ── Drop zone drag-over ─────────────────────────────────────────────────────── */
#drop-zone.drag-over {
  background: rgba(127,186,60,0.04);
}
#drop-zone.drag-over #dz-icon {
  background: rgba(127,186,60,0.15);
}

/* ── Toast ───────────────────────────────────────────────────────────────────── */
#toast.show { opacity: 1; transform: translateY(0); }