/* Options form */
.form-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.form-row label {
  width: 90px;
  flex-shrink: 0;
  font-size: 13px;
  color: #555;
}
.form-row input[type=number] {
  flex: 1;
  min-width: 0;
  padding: 9px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}
.form-row input:focus { border-color: #0078d4; }
.form-row:last-of-type { margin-bottom: 16px; }

/* Checkboxes */

/* Error message */
.error-text {
  display: none;
  color: #c0392b;
  font-size: 13px;
  background: #fdecea;
  border: 1px solid #f5c6cb;
  border-radius: 6px;
  padding: 10px 14px;
}

/* Generate button */
.btn-generate {
  width: 100%;
  padding: 12px;
  background: #0078d4;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}

/* Results */
.number-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.number-chip {
  padding: 8px 16px;
  background: #f0f6ff;
  border: 1px solid #c5ddf9;
  border-radius: 20px;
  font-size: 15px;
  font-weight: 700;
  color: #0078d4;
  font-family: 'Consolas', monospace;
  word-break: break-all;
  opacity: 0;
  transform: scale(0.5);
  animation: chipPop 0.3s forwards;
}

@keyframes chipPop {
  to { opacity: 1; transform: scale(1); }
}

.btn-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-copy-all {
  background: #0078d4;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 9px 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-reset {
  background: #fff;
  color: #666;
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 9px 20px;
  font-size: 13px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.btn-reset:hover { color: #0078d4; border-color: #0078d4; }

.info-block a { color: #0078d4; }